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كشف عن الجينات المشفرة لانتاج البايوسين من بكتريا Pseudomonas aeruginosa ومقارنة الانتاج مع تكوين الغشاء الحيوي == Detection of Genes Encoding Pyocin Production of Pseudomonas aeruginosa and Comparison the Production with Biofilm Formation

Author name: حسين ظاهر عليوي التميمي
Supervisor name: رجوة حسن عيسى الربيعي
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: جمعت50)) عزلة تابعة لبكتريا Pseudomonas aeruginosa من مستشفيات مختلفة في بغداد وخلال شهر ايلول لغاية شهر الكانون الاول لسنة (2014). تم اخذ هذه العزلات من مصادر مختلفة ثم شخصت بالاعتماد على الصفات المظهرية والمجهرية عند تنميتها على الاوساط التفريقية والاختيارية فضلا عن الفحوصات الكيموحيوية ولتاكيد نتائج الفحوصات الكيموحيوية استعمل نظام VITEK2 Compact كخطوة تكميلية. كما تضمنت الدراسة التصنيف المصلي لاجناس P. aeruginosa حيث تتعدد الانماط المصلية لهذه البكتريا حيث كانت ( : 11, O : 9, O : 8 and O : 7) بعد فحص العزلات. كان النمط المصلي (O : 11) الاكثر شيوعا وانتشارا من الانماط الباقية .كانت الانماطO : 8) وO : 9) اقل انتشارا ويعد النمط المصلي (O : 7)من الانماط حديثة الظهور. استعملت في هذه الدراسة طريقة Cross Streaking Method للكشف عن قدرة البكتريا على انتاج البايوسين حيث استخدم الوسط trypticase soy agar في هذه الطريقة, كانت العزلات المنتجة للبايوسين (P) قادرة على انتاج البايوسين عندمزارعت بشكل خط مستقيم وذلك بعد ان حضنت لمدة 24 ساعة وبدرجة37 مئوية, العزلة الدالة(I) فقد زرعت بشكل خط عمودي على العزلة المنتجة (P). ان غياب النمو البكتيري في الوسط الزرعي وعند نقطة التقاء الخطين دلالة على انتاج البكتريا للبايوسين, اذ لوحظ ان (16) عزلة من اصل (50)عزلة لها القدرة على انتاج البايوسين.واستعملت في هذه الدراسة طريقتين للتحري عن تكوين الغشاء الحيوي وهي طريقة Congo Red Method (CRA) وطريقة اطباق المعايرة Micro Titration Plate Method (MTP). اظهرت النتائج ان طريقة (MTP) كانت اكثر حساسية في التحري عن تكوين الغشاء الحيوي ، اذ لوحظ ان (19) عزلة من اصل (50) عزلة وبنسبة (38%) كانت مكونة للغشاء الحيوي وبشكل قوي ، في حين كانت (13) عزلة وبنسبة (26%) مكونة للغشاء الحيوي وبشكل ضعيف ، لكن كانت هنالك (18) عزلة وبنسبة (36%) غير مكونة للغشاء الحيوي. في حين بينت النتائج الخاصة بطريقة ال (CRA) ان (33)عزلة وبنسبة (66%) كانت قادرة على انتاج الغشاء الحيوي ، بينما كان عدد العزلات غير المكونة للغشاء الحيوي (17) عزلة وبنسبة (34%).اخضعت جميع العزلات (50 عزلة) للفحص بواسطة تقنية Polymerase Chain Reaction(PCR) لتشخيص الجينات المسؤولة عن انتاج البايوسين من نوع S باستخدام برايمرات خاصة لكل من (S1S2 pyocin) و(S3 pyocin). اظهرت نتائج تقنية الPCR بان (24) عزلة من اصل (50) عزلة وبنسبة تقدر ب (48%) تمتلك جين S1S2 (اذ كان ناتج تقنية البلمرة لهذا الجين بالحجم 287bp), لكن هنالك (21) عزلة وبنسبة (42%) تمتلك جين S3 (اذ كان ناتج تقنية البلمرة لهذا الجين بالحجم 451bp). | Fifty bacterial isolates of Pseudomonas aeruginosa have been collected from many hospitals in Baghdad include : Al - Kindy hospital, Ibn Al - baladi hospital, wound and burn hospital and Baghdad hospital in medical city during the period from Sep. to Dec. (2014). These isolates were collected from different sources. Then, they were diagnosed depending on morphological and microscopic properties when they were cultured on selective and differential culture media as well as by using biochemical tests, then in order to confirm the results of biochemical test VITEK2 compact have been used as a confirmatory step. Serotype classification of P. aeruginosa isolates showed multiple serotypes were existed (O : 11, O : 10, O : 9, O : 8, O : 7 and O : 5) for isolates which tested and (O : 11) serotype consider as more frequent serotype as (48%) whereas (O : 9, O : 5 and O : 8) are low spreading serotypes as (8%, 10% and 12%) respectively, while (O : 7) serotype as (4%) represent appearance of new serotype in comparison with local studies. In this study, pyocin production was detected by using cross streaking method, it was applied by using trypticas soy agar media. In this method producer isolates (P) which were able to produce pyocin were cultured as straight line and after incubation at 37Co for 24h., inducer isolates (I) were cultured on media as a vertical on the first line (producer isolates).Absence of bacterial growth on the media which were cultured by vertical line on producer bacteria leads to pyocin that produce by producer isolate prevent growth of inducer isolates, where it had been noted that (16) isolates out of (50) isolates have the ability to produce pyocin.Ability of bacterial isolates to produce biofilm was detected by two methods : these methods are Congo Red Agar method (CRA) and micro titration plates method (MTP). Results have been showed that (MTP) method was more sensitive to determine biofilm producers. It was noted that (19) isolates from (50) isolates as a (38%) were powerful biofilm producers while (13) isolates as a (26%) were weak biofilm formation, but there were (18) isolates as a (36%) were non - biofilm producers. On the other hand the (CRA) method appeared that (33) isolates as a (66%) were able to produce biofilm while non - biofilm formation isolates were (17) isolates as (34%).All fifty isolates were tested by Polymerase Chain Reaction (PCR) technique to detect gene responsible for S type pyocin by using primers specific for S1S2 pyocin and S3 pyocin. Results appear that there were (24) isolates from all (50) isolates (48%) contained the S1S2 gene, but there are (21) isolates also from (50) isolates as a (42%) contained S3 gene. The total number of isolates which contain genes encoding of S - type pyocin production (both S1S2 and S3 genes) were (31) isolates as (62%).The results have shown that there were (39) isolates as (78%) have the ability to produce pyocin by both phenotypic and genotypic methods (cross - streaking and PCR technique), while there were (43) isolates as (86%) able to produce biofilm by both CRA and MTP methods. Relationship between pyocin production and biofilm production were shown that all isolates have the ability to produce pyocin at least by one method were able to produce biofilm and at least by one method too

دراسة بكتيرية ومناعية للانظيم الحال للبروتين نوع - ا - المستخلص من بكتيريا Proteus mirabilis المعزولة من خمج السبل البولية == Bacteriological and Immunological Study of IgA - Protease Enzyme Extracted from Proteus mirabilis Isolated from Urinary tract infection

Author name: حسن علي حسين السعدي
Supervisor name: رجوه حسن عيسى الربيعي | جاسم طعمه حسين الخفاجي
General topic: Biology
Specific topic: Microbiology
Degree: Doctorate
Language: Arabic
University location: Baghdad
First pages:
Abstract: تضمنت هذه الدراسة اربعة محاور : 1 - العزل والتشخيص : تم عزل وتشخيص (40 ) عزلة من بكتيريا Proteus spp. من مجموع ( 200 ) عزلة بكتيرية من عينات اخماج مرضى السبل البولية في مستشفيي مدينة الطب والكندي للفترة بين 1/3/2004 لغاية 30/10/2004.اظهرت الفحوصات الكيميائية الحيوية ان 40 عزلة بكتيرية (20% ) من العزلات البكتيرية كانت تنتمي الى جنس Proteus والتي اشتملت على ( 37 ) عزلة تعود الى بكتيريا)P. mirabilis18.5%) ثلاث عزلات من بكتيريا Proteus vulgaris. عشر عزلات من بكتيريا P. mirabilis كانت منتجة للانظيم الحال للبروتين (IgA Protease)، بينما كانت عزلات بكتيريا Proteus vulgaris غير منتجة للانظيم المذكور ،واختيرت العزلة (Pm5)P.mirabilis كعزلة منتجة للانظيم.2 - تنقية وتوصيف الانظيم : اختير الوسط مرق ( Cysteine lactose electrolyte deficient ) كافضل وسط زرعي لانتاج الانظيم من بكتيريا Proteus mirabilis وتم تنمية العــــزلة البكتيريـــة( Pm5) في درجة حرارة( 37 )م باستخدام الحاضنة الهزازة وثم نقي الانظيم باستخدام الترسيب ملح كبريتات الامونيوم بتشبع(60%) وديلزته واستخدام هلام السيفادكس G - 100 Sephadex وكذلك المبادل الايوني DEAE - Cellulose، قيست الفعالية الانظيمية وتركيز البروتين للانظيم في كل مرحلة من مراحل التنقية ظهر منحني تنقية الانظيم باستخدام هلام السيفادكس وجود اربعة قمم بروتينية منها قمة واحدة للانظيم الحال للبروتين بينما اظهرت طريقة استخدام المبادل الايوني قمة واحدة فقط، تم حساب الفعالية الانظيمية وتركيز البروتين والفعالية النوعية والفعالية الكلية وعدد مرات التنقية والحصيلة الانظيمية فكانت على التوالي : (28.7)وحدة/مل،(0.15)ملغم/مل، (191.3)وحدة/ملغم، (258.3)، (5.5)،(9.9%) عند التنقية باستخدام المبادل الايوني وحسب الوزن الجزيئي للانظيم اذ كان (50)كيلودالتون باستخدام طريقة الترشيح الهلامي وكانت الفعالية المثلى للانظيم عند الاس الهيدروجيني 8 ودرجة الحرارة المثلى لانتاج الانظيم هي (37)م ودرجة الحرارة الملائمة لخزن الانظيم هي (4)م مقدارها وكان للايون (Ca+2) تاثير واضح في زيادة فعالية الانظيم بينما كان للـEDTA تاثير مثبط على فعالية الانظيم. 3 - الدراسة المناعية : - استعملت ثلاث مجاميع من الارانب لغرض التمنيع (ارنبين لكل مجموعة) حقنت داخل العضلة باستعمال تراكيز مختلفة من الانظيم(0.2،0.5،1)ملغم/مل فضلا عن ارنبين ضمن مجموعة السيطرة. اتبعت طريقتين (الاوكترلوني والترسيب باستعمال الانابيب) لغرض التحري عن الاضداد المتخصصة للانضيم الحال للبروتين في مصل الارنب، اظهرت النتائج عدم تكون الخط الترسيبي عند استعمال طريقة الاوكترلوني بينما تكونت حلقة ترسيبية واضحة باستعمال طريقة الترسيب بالانابيب. تم فصل امينوكلوبيولينات الارنب باستعمال المبادل الايوني DEAE - Cellulose بعد عملية الفصل ظهرت ثلاث قمم بروتينية على الطول الموجي 280 نانوميتر تم اختبار فعالية الانظيم في كل قمة مقارنة بالقمم المؤشرة في الادبيات، اظهرت القمة الثالثة حلقة ترسيبية واضحة باستعمال طريقة الترسيب بالانابيب بينما لم تظهر خط ترسيبي باستعمال اختبار الاوكترلوني وهذا قد يدلل على وجود تحت الانواع IgG المقاومة لفعالية الانظيم الحال للبروتين ضمن هذه القمة. تم دراسة تاثير التراكيز المختلفة للانظيم الحال للبروتين (0.2، 0.5، 1)ملغم/مل على بعض الخلايا المناعية وفق المعايير التالية : اذ ادى تركيز الانظيم(0.2)ملغم/مل الى زيادة في عيوشية الخلايا اللمفاوية وخلايا متعددة النوى (PMNs) وعلى التشكل الزهري التائي والبائي وعملية التهام الخميرة المقتولة في الزجاج واختزال صبغة النايتروبلوتترازوليم (NBT) ومعامل الانقسام الخيطي في الفئران. 4 - الدراسة النسجية : - درست التغيرات النسجية المختلفة في الارانب الممنعة بالانظيم الحال للبروتين بتركيز((0.2 ملغم/مل فكان له تاثيرا واضحا على انسجة الكبد، الرئة، الكلية والطحال،اذ لوحظ وجود مناطق تنكس استسقائي شديد في هيولي خلايا الكبد مع احتقان الوريد المركزي في نسيج الكبد، كمالوحظ وجود خلايا التهابية في جدران الاسناخ وضمور تجويف الاسناخ في الرئة، بينما توسعت محفظة بومان مع ارتشاح بعض الخلايا الالتهابية وخاصة حول الكبيبات في الكلية، اما في الطحال ازداد عدد الخلايا التائية حول الشرين المركزي كذلك الخلايا البائية في باقي اللب الابيض في الطحال نتيجة لتكاثرها وفرط نموها. | This study was included four aspects : - 1 - Isolation and ldentifcation : Forty isolates of Proteus spp were isolated and identified among (200) bacterial isolates from patients samples with urinary tracts infection in two hospitals (Baghdad and Al - Kindy). Biochemical tests were showed (20 %) from bacterial isolates were belonged for genus Proteus (37) isolates replied to Proteus mirabilis with (18.5 %) and (3) isolates were for Proteus vulgaris. Ten isolates from Proteus mirabilis were producing for IgA protease while P.vulgaris isolates were non - producing for this enzyme. Proteus mirabilis (Pm5 ) was selected among isolates efficient producing isolate(Pm5). 2 - Purification and characterization of the enzyme : Cysteine lactose electrolyte deficient medium was selected as the best medium for culturing for production the enzyme by P. mirabilis. Bacterial isolate (Pm5) to produce protease, then protease was purified by application Ammonium sulfate with (60 %) saturated, dialysis, Sephadex G - 100 filtration, and Ion exchange with DEAE. Cellulose. The enzymatic activity and protein concentration were measured in every stage of purification. Four peaks were appeared one of them belong to IgA - protease activity, while by using Ionic exchange method was appeared only one peak. Enzymatic activity, protein concentration, specific activity, total activity, no. of purification, and enzymatic yield were determined in Ionic exchange technique were : ( 28.7) U/ml,(0.15)mg/ml,(191.3)U/ml,(258.3),(5.5),(9.9%) respectively, molecular weight of the enzyme was performed by using gel filtration was (50)Kd. The optimum activity was at pH (8), the optimum temperature with the enzymatic activity was at (37) ˚C, the suitable temperature for storage with enzymatic activity was at (4) ˚C, the (Ca+2) Ion has on effect on increasing the enzymatic activity, while the EDTA was suppressed activity. 3 - Immunological study : Three groups of rabbits were used for immunization (two rabbits for each group in addition to control were injected intramuscular by different enzyme concentrations (0.2, 0.5, 1) mg/ml. Two methods (Ouchterlony and tube precipitation are used for checking up specific protease antibody in rabbit serum. Results showed no precipitin line between enzyme as antigen and serum in (Ouchterlony) while there was clear ring of precipitin was formed in the second method. Rabbit immunoglobulines were separated by using DEAE - Cellulose results showed three peaks protein at (280) nm wave length absorbency, enzyme activity of each peak was tested. In comparing these peaks with standard rabbit immunoglobulines. The third peak was tested against IgA - protease by using tube precipitation test result showed precipitation ring. This result indicated that this peak may include IgG subclasses which are resist protease activity while other peaks were opsonized by the enzyme. The effects of the IgA protease concentration (0.2, 0.5,1) mg/ml on immune cells were studied according the following parameters : the effect of the enzyme on immune and (PMNs) cells, T, B - rosette, phagocytosis in vitro, reduction of Nitroblue tetrazolium, and Mitotic index in Mice, (0.2) mg/ml of the enzyme has an effect on induction activity of T, B - rosette, phagocytosis in vitro, reduction of Nitroblue tetrazolium, and Mitotic index in Mice. 4 - Histological aspect : Different pathological changes were shown on rabbit’s tissues (liver, lung, kidney and spleen) which were immunized with IgA protease (0.2)mg/ml. In liver great hydropic degeneration was noticed in the cytoplasm in addition to present an with congestion of central venule, inflammatory cells in the alveolar walls and alveolar cavity atrophy in lung, enlargement of Bouman s capsule with infiltration of phagocytes around glomerulus was shown in kidney, while in spleen T cells around central arteriole as well as B cells in other white pulp were increased as a result of proliferation .

تاثـيــر فعالية الانتيروسين المنتج من بكتريا faecium Enterococcus على بعض البكتريا المرضية المعزولة من مصادر مختلفة == Activity effect of enterocin produced from Enterococcus faecium on some pathogenic bacteria isolated from different sources

Author name: حسام سامي عويد الشمري
Supervisor name: خليل مصطفى خماس
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: تـتـناول هــذه الـــدراســة تاثـيـر الانتيـروســـين المنتــج بــواســطــة بكــتــريا E.faecium ضـــد بــعــض البكتــريا الــمـمـرضــة المـتـواجـــدة بكثرة في الحـليب ومشتقاته. فقد تم لهذا الغـرض جمع 382عينة من اطفال يعانون حالات اسهال والتهاب السبيل البولي والحليب الخام لعـزل بكتريا E.faecium وتم تشخيص العزلات بالفحوصات الكيموحيوية وتاكيد تشخيصها باستعمال منظومة فايتك 2 . فضلا عن ذلك فقـد تم جمع 50 عينة لعـزل بكتريا Listeria monocytogenes و66 عينة لعزل بكتريا Salmonella typhimurium من الحليب الخام ومشتقاته وتم تشخيصهما باتباع الفحوصات الكيموحيوية وتاكيد التشخيص باستعمال Api Listeria وApi - 20Eاضافة الى التنميط المصلي لبكتريا Salmonella typhimurium . تم تقصي انتاج الانتيروسين المنتج بواسطةE. faecium باستعمال طريقتي اقراص الاكار والانتشار في الحفر , ونقي الانتيروسين باستعمال الترسيب بسلفات الامونيوم والفصل بكحول البيوتانول , كما تم الكشف عن حساسية البكتريوسين المنتج لمجموعة واسعة من الانزيمات الحالة للبروتين والدهون وبعض الانزيمات الاخرى .فضلا عن ذلك فقد تمت دراسة تاثير الحرارة والرقم الهيدروجيني على البكتريوسين المنتج , وتم اختبار تراكيز مختلفة من المايتومايسين - سي لحث الانتيروسين .اختبرت الحساسية للمضادات الحيوية لعزلات بكتريا اللستيريا والسالمونيلا والمكورات المعوية باستخدام طريقة كيربي - باور .يمكن تلخيص النتائج التي تم الحصول عليها بالاتي : كانت نسبة عـزل E. faecium 7.59)%) من مجموع 382 عينة , اما نسبـة عـزل Listeria monocytogenes 10)%) من مجموع 50 عينة , اما نـسبـة عـزل Salmonella typhimurium فقد كانت .06)6%) من مجموع 66 عينة . اظهـر الانتيروســين المنتـج بواســطة E. faecium طـيفا واسعا من التاثير ضـد البكتريا الاختبار المـوجبة والسالبة لصبغـة غــرام التي عددها 8 وبضمـنها Listeria monocytogenes وSalmonella typhimurium . اظهر الحث بالمايتومايسين - سي )بتركيزي 1.5 و2 مكغم/ مل( انتاجا عاليا للانتيروسين . ادت تنقية الانتيروسين جزئيا باستعمال الترسيب بنسبة 80 % الى اعطاء اعلى نتيجة عندما بلغت 2.225 وحدة / مكغم بروتين , اما الفصل بكحـول البيوتانول فقد اعطى محصولا وصــل الى 0.57 وحدة / مكغم بروتين . ادت معاملة الانتيروسين بالانزيمات وتلك الحالة للبروتين حساسية الانتيروسين تجاه هذه الانزيمات باستثناء انزيمات Lipase وCatalase وα - amylaseو Lysozyme . اظهـرت تجارب المعاملة بالحرارة مقاومة الانتيروسين للحرارة وحتى عند121ºC لمدة 20 دقيقة , في حين كان مدى الاس الهيدروجيني له 4 - 9 .اظهرت تجارب الحساسية للمضادات الحيوية ان Enterococcus faecium كانت حساسة الى 7 مضادات حيوية . وكانت بكتريا Listeria monocytogenes مقاومة الى 9 مضادات حيوية وبكتريا Salmonella typhimurium مقاومة الى 4 مضادات حيوية .امكن الحصول على النتائج وكما يلي : انتجت عزلات Enterococcus faecium الانتيروسين بكميات واطئه فيما امكن حثه باستعمال المادة الحاثة المايتومايسين - سي , وامكن تنقيتها جزئيا باستعمال مرسبات البروتين . اتصف الانتيروسين المنتج من هذه البكتريا بطيف واسع النطاق من التاثير ضد البكتريا الموجبة والسالبة لصبغة غرام ولاسيما تلك التي تلوث الحليب ومشتقاته . | This study investigate the effect of bacteriocin by Enterococcus faecium against some pathogenic bacteria frequently found in milk and dairy product. Three hundred eighty two sample collected from patients and raw milk were used for isolation of E.faecium the isolates were diagnostic by biochemical tests and confirmed using Vitek 2 system . In addition Listeria monocytogenes , Salmonella typhimurium were isolated from milk and dairy products these were diagnostic by biochemical tests and confirmed using Api Listeria and Api - 20E system in addition to serotyping to bacteria Salmonella typhimurium . Enterocin produced by E.faecium detected using tow methods Cup agar and Well diffusion and partially - purified using ammonium sulfate precipitation and n - butanol partition , the sensitivity of the material was tested against diverse group of proteolytic , lipolytic and some other enzymes. In addition the effect of temperature as well as pH an the bacteriocin were tested . and used different concentration of Mitomycin - C to induce enterocin . Antibiotic sensitivity of Listeria and Salmonella and Enterococcus isolates were tested using Kirby - Bauer method. The results showed the followings : The isolation rate of E . faecium was (7.59%) from 382 sample , L. monocytogenes isolation rate approach (10%) from 50 sample , S.typhimurium isolation rate reached (6.06%) from 66 sample .Enterocin produce by E . faecium demonstrated a broad - spectrum effect against both gram positive and gram negative bacteria including Listeria monocytogenes and Salmonella typhimurium . Mitomycin - C induction was used to induce a high level production of Enterocin the concentration of optimum inducing agent was 1.5 - 2 mg /ml. The enterocin was partially purified eighty percent of Ammonium sulfate give the highest yield reaching 2.225 Unit /mg protein , n - butanol partition yield 0.57 Unit/mg protein. Enzymatic effect on enterocin demonstrated that proteolytic enzymes completely inactivated the bacteriocin , other enzymes including Lipases Catalase demonstrated no effect. α - amylase , Lysozyme ,The Enterocin was heat - resistance at even 121º C for 20 minute , the optimum pH was shown to be 4 - 9 .Enterococcus faecium was highly sensitive to 7 antibiotic used .and Listeria monocytogenes was highly resistance to 9 antibiotic and Salmonella typhimurium was resistance to 4 antibiotic . In results E . faecium produce enterocin at low level which was induced to high level yield using Mitomycin - C , the enterocin could be partially purified using precipitators protein, That enterocin product of this bacteria characterized a broad spectrum against positive and negative gram bacteria including contaminate milk and its products

تاثير مستخلصات قشور البرتقال على نشاط بكتريا Pseudomonas aeruginosa المقاومة للمضادات الحيوية والمعزولة من التهابات جروح الحروق وجروح ما بعد العمليات في مدينة بغداد == Effect of Citrus sinensis peels extracts on the viability of antibiotics resistant Pseudomonas aeruginosa isolated from burn and post - operative wound infections in Baghdad City

Author name: بتول عبد الامير باقر الصفار
Supervisor name: محمد فخري احمد | صفاء عبد الكريم عبد الرزاق
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: • تم جمع 175 مسحة من المرضى الذين يعانون من خمجات الحروق والجروح مابعد العمليات الجراحية ,الراقدين في مستشفيات بغداد المختلفة ,والمتضمنة مستشفى الكندي التعليمي, مستشفى الكرخ العام ومستشفى بغداد التعليمي اثناء الفترة من ايلول 2008 الى كانون الثاني 2009. • زرعت المسحات على وسطي غراء الدم والماكونكي وحضنت هوائيا بحرارة 37 م لمدة 24 ساعة وشخصت العزلات منPseudomonas aeruginosa باستخدام التشخيص الكيموحيوي والفسلجي والصفات ﺍ ﻠﻤﻈهرية واكد باستخدام نظام عدة api 20E .• تشير النتائج الى 114عزلة اعطت زرع بكتيرولوجي موجب بمعدل65.14% هذه تضمنت 51 (%60 ) عزلة من 85 مسحة من اصابات جروح مابعد العمليات و63 (%70 ) عزلة من 90 مسحة من اصابات الحروق.• اجري فحص الحساسية على هذه العزلات باستعمال 10 مضادات حيوية شائعة الاستعمال من مجاميع مختلفة ,اظهرت النتائج مقاومة عالية الىCephalothin, Carbenicillin, Tetracycline, Ceftriaxone, Chloramphenicol, Cefotaxime and Ceftazidime وبنسبة مقاومة (100, 92.98, 88.59, 78.94, 69.29, 67.54, 65.78)% على التوالي. بينما اظهرت العزلات حساسية عالية الى المضادات Amikacin, Ciprofloxacin and Meropenem وبنسبة مقاومة ( 28.94, 23.68, 15.78 )% على التوالي. • اربع مستخلصات المائي الحار٬ المائي البارد ٬ الكحولي الحار والكحولي البارد طبقت لاستخلاص قشـــورالبـــرتقال. ووجدت من خلال الكشف النوعي للمستخلصات بان المستخلصات المائية الحارة والباردة لقشور البرتقال احتوت على المركبات التالية : كلايكوسيدات٬ فينولات٬ قلويدات٬ صابونيات وتانينات، بينما احتوت المستخلصات الكحولية الحارة والباردة (اضافة الى ما ذكر) على مركبات : راتنجات٬ تربينات٬ فلافونات٬ كومارينات وزيوت طيارة. • استخدمت المستخلصات لدراســـة تاثيرها على نمــو العــزلات المقاومة فقــط والمعزولة من اصابات الجروح مابعد العمليات الجراحية والحروق بطريقة الانتشار بالحفر. مستخلصات قشورالبرتقال في التراكيز) 25 ,50, 75 ,100, 200 ,300 ,400 و500 )ملغم/مل اظهرت فعالية ضد العزلات البكتيرية. • كشف التحليل الاحصائي وجود اقل فروق معنوية عند مستوى احتمالية P<0.05)) لاربع مستخلصات.• المستخلص الكحولي الحار من قشور البرتقال كان اكثر كفاءة من المستخلصات الاخرى ضد عزلات الجروح مابعد العمليات وجروح الحروق. المستخلص المائي البارد ياتي بالمرتبة الثانية بعد المستخلص الكحولي الحار. معدلات اقطار مناطق التثبيط لهذه المستخلصات ضد P. aeruginosa عند التركيز العالي 500 ملغم/مل كانت 22.78ملم لمستخلص الكحولي الحار، بينما كانت 71.15ملم لمستخلص المائي البارد. اما النتائج كانت متغايرة بالنسبة لتاثير مستخلصي الكحولي البارد والماء الحار وبشكل عام اظهرت تاثيرات منخفضة على العزلات البكتيرية. بينما عند التركيز 25 ملغم/مل لمستخلص الكحولي الحار معدلات اقطار التثبيط تناقص الى 64.1 ملم. • اختبر تاثير التراكيز المختلفة لمستخلص الكحولي الحار على نشاط انتاج الانزيمات : اليوريز ، جيلاتينيز ، اوكسيديز والكاتاليز، اظهرت النتائج ان المستخلصات الكحولية الحارة في التراكيز (75, 100, 200) ملغم/ مل تاثيرا جدير بالملاحظة على نشاط انتاج اليوريز، يعزى ذلك الى ظهور اللون الاصفر(كنتيجة سالبة) بعد ساعتين من الاختبار. بينما عند تراكيز(25 ,50) ملغم/مل من المستخلص حصول نتيجة سالبة لانتاج اليوريز بعد الساعة الرابعة من الحضن. • المستخلص الكحولي الحار اثبط انتاج الجيلاتينيزعند التراكيز( 50 ,75 ,100 ,200) ملغم/ مل بعد الساعة الثانية من فترة الحضن. بينما عند التركيز 25 ملغم/مل اظهرت النتيجة سالبة للجيلاتينيز بعد الساعة الرابعة حضانة. المستخلص الكحولي الحار اثبط انتاج الاوكسيديز والكاتاليز بالتراكيز(25 ,50 ,75, 100 ) ملغم/مل واظهرت نتيجة سالبة بعد الساعة الثانية من الحضن. • اظهرت نتيجة دراسات ميكانيكيات النمو بتركيز 500 ملغم \مل من المستخلص الكحولي الحار قتل كامل لعزلات اصابات الحروق والجروح مابعد العمليات الجراحية التي يتطلب وقت حضانة بين الساعة 6 - 8 ساعة. علاوة على ذلك المستخلص بتركيز 400 ملغم/ مل تطلب القتل الكامل للعزلات 8 ساعات حضانة لكل العزلات. بينما عند التركيز( 200 ,300 ) ملغم/ مل اظهر قتل كامل على جميع الخلايا بعد مرور 24 ساعة حضانة. اما التركيز 100 ملغم/ مل اظهر معدل قتل جزئي للعزلات (حتى بعد 24 ساعة حضانة). ﺗﻡ اﯿﻀﺎ ﻤﻨﺎﻗﺷﺔ ﻮﺘﺤﻠﻴﻞ ﻤﻧﺤﺪﺮﺍﺖ اﻠﻴﺔ ﺍﻠﻧﻤﻮ ﻠﻠﺒﻜﺘﺮﻴﺎ. | Hundred and seventy five swab samples were collected from patients suffering from burns and post - operative infections who admitted to different hospitals in Baghdad for medical care, these included : Al - Kindy Teaching Hospital, Al - Karkh General Hospital and Baghdad Teaching Hospital, during the periods from October 2008 to January 2009. The swabs were cultured on blood agar base and macConky's agar then incubated at 37˚C for 24hrs . Isolates of P. aeruginosa were isolated and identified using morphological, physiological and biochemical diagnosis and confirmed by api 20 E kit . The results indicated that 114 (65.14%) have given positive bacteriological cultures, this included 51(60%) isolates out of 85 swabs of post - operative wound infections, while 63(70%) isolates out of 90 swabs of burns infections. Sensitivity test was performed for these isolates using 10 commonly used antibiotics. The result indicated that a higher resistance to Cephalothin, Carbenicillin, Tetracycline, Ceftriaxone, Chloramphenicol, Cefotaxime and Ceftazidime whith the percentages of 100, 92.98, 88.59, 78.94, 69.29, 67.54, 65.78 % respectively , while the isolates showed a higher sensitivity to Amikacin, Ciprofloxacin and Meropenem with the percentages of resistance of 28.94, 23.68, 15.78 % respectively. Four extraction methods, i.e. hot water, cold water, hot alcoholic and cold alcoholic, were applied for the extraction of Citrus sinensis peels . Hot and cold watery extracts of Citrus sinensis peels contained the following compounds : Glycosides, phenols, alkaloids, saponins, and tannins. While hot and cold alcoholic extracts contained, in addition to above, resins, terpins, flavones, coumarins, and volatile oils. The extracts were used to study their effects on growth of P. aeruginosa resistant isolates of post operative wound and burn isolates by using agar diffusion method. Extracts of Citrus sinensis peels at concentrations of 500, 400, 300, 200, 100, 75, 50, 25mg/ml showed activity against bacterial isolates. The statistical analysis revealed the presence of significant differences (P<0.05) for four extracts. The hot alcoholic extract of Citrus sinensis peels were more efficient than the other extracts against post - operative wounds and burn wounds isolates. Cold water extract came next to hot alcoholic extract. The inhibition zone diameters for these extracts were 22.78mm (for hot alcoholic extract) and 15.71mm (for cold water extract). Variable results were obtained with respect to the effects of cold alcoholic extract and hot watery extract, and generally, of low effects on bacterial isolates. At a concentration of 25mg/ml of hot alcoholic extract, the rate of inhibition zone diameters decreased to 1.64mm. The effect of different concentrations of hot alcoholic extract on the activity of enzymes production of urease, gelatinase, oxidase and catalase have been tested. The results showed that hot alcoholic extracts at concentrations of 75, 100, and 200mg/ml, demonstrated an observable effect on the activity of urease production due to observation of yellow - orange color (i.e. negative result), after 2hrs . While at extract concentrations of 25 and 50mg/ml, negative urease test was obtained after 4hrs incubation. Hot alcoholic extract has inhibited gelatinase production at a concentration of 50, 75, 100, and 200mg/ml after 2hrs incubation. While at a concentration of 25mg/ml, negative gelatinase result is obtained after 4hrs incubation. Hot alcoholic extract affects the inhibition of oxidase and catalase production at concentration of 25, 50, 75, and 100mg/ml, which showed negative results after 2hrs incubation. The result of Kinetics of growth studies demonstrated that the concentration of 500mg/ml of hot alcoholic extract was enough for complete killing the isolates from burn and post - operative wound infections. Moreover, this killing required incubation time between 6 - 8 hrs . At extract concentration of 400 mg/ml a complete killing required 8hrs incubation. While for complete killing upon application of 200 and 300mg/ml of the extract required 24hrs incubation. Partial kill occurs after 24hrs when 100 mg/ml of extract was used. Analysis of the slopes of growth kinetics was also discussed.

التداخل البكتيري مع عوامل ضراوة خميرة الكانديدا المسببة لحالات التهاب الفرج والمهبل == Bacterial Interference In The Virulence Factors Of The Yeast Candida Causing Vulvovaginal Candidiasis

Author name: ايمان ناطق ناجي البياتي
Supervisor name: احسان شفيق توفيق دميرداغ | سناء مسلم الصفار
General topic: Biology
Specific topic: Microbiology
Degree: Doctorate
Language: Arabic
University location: Baghdad
First pages:
Abstract: جمعت 200 عينة من اعالي المهبل ( H.V.S ) High Vaginal Swab من نساء متزوجات توزعت بين 130 امراة غير حامل ( Non Pregnant Women ) ( NPW ) منهـن 90 كن مصابات بالتهاب الفرج والمهبل Vaginitis و( 40 ) منهن كن سليمات لغرض السيطرة (H ) Healthy Control والباقــي ( 70 ) عينة من نساءحوامل ( P.W. ) Pregnant Women ، منهـن( 40 ) امراة مصابة بالتهاب الفرج والمهبل و( 30 ) اخرى سليمـة سيطرة . استمرت فترة جمع العينات من 1/6/2002 الى 1/2/2003 تحت اشراف الكادر الطبي المتخصص في قسم النسائية والتوليد في مستشفى النعمان العام في الا عظمية / بغداد . كما تم تخصيص استمارة استبيان لكل مريضة دون فيها كل ما يخص المريضة من اعراض سريريه ونتائج التشخيص والفحص المختبري والملاحظات العامة .اعتمادا على الاعراض المرضية والفحوصات المختبرية التشخيصية تم تحديد ثلاث انواع من الالتهابات المهبلية وهي : ا - التهاب الفرج والمهبل اللانوعيBacterial Vaginosis (BV.) ..ظهرت الحالة في (23) مريضة من مجموع (70) امراة حامل [ فيهن (40) مريضة و( 30) اخرى سليمة ] بنسبة (33%) من الحوامل ، كما ظهرت في ( 25) امراة غير حامل من مجموع ( 130) امراة [فيهـن ( 90 ) مريضة ] بنسبة ( 19% ) من النساء غير الحوامل .ب - التهاب الفرج والمهبل الكانديدي Volvavagianal Candidiasis (VVC) .. ظـهرت الحالة في ( 13) مريضة من مجموع ( 70) امراة حامل بنسبة ( 18%) [فيهن ( 30) امراة سليمة و( 40) اخرى مريضة ] كما ظهرت في ( 43) مريضة من مجموع ( 130) امراة غير حامل بنسبة (33%) [فيهن ( 40) امراة سليمة و(90) اخرى مريضة جـ - التهاب ناتج من اصابة مختلطة Mixed Infection (MI) ظهرت الحالة في ( 4) مريضات من مجموع ( 70) امراة حامل بنسبة (6% ) [ فيهن ( 30) امراة سليمة و(40) اخرى مريضة] كما ظهرت في (22) مريضة من مجموع (130) امراة غير حامل بنسبة ( 17) [ فيهن (30) امراة سليمة و(40) امراة اخرى مريضة] . وقد تم عزل 74 عزلة من خميرة الكانديدا عزلت ( 38 ) عزلة منهـن( 43 ) امراة مصابة بالكانديـدا ( VVC ) عزلت ( 16 ) عزلة من (22) مريضة مصابة باصابة مختلطة (M.I ) وعـزلت ( 5 ) عزلات من مجمـوعة السيطرة من النساء غير الحبلى ومن جانب اخـر عزلت ( 11 ) عزلة من ( 13 ) امراة مصابة بالكانديدا ( VVC ) و( 3 ) عزلات من 4 نساء مصابات اصابة مختلطة ( M.I ) وعزلة واحدة من مجموعة السيطرة للنساء الحوامل. وهذه النتائج تدل على سيادة خميرة الكانديدا في التهاب الفرج والمهبل لدى مجموعتي النساء الحوامل وغير الحوامل.و تم تشخيص الانواع التالية من خميرة الكانديدا وهي : Candida albicans ( 37 عزلة ) ، C. tropicalis ( 20 عزلة ) C. glabrata ( 7 عزلات) C.dubliniensis ( 7 عزلات ) وC.parapsilosis عزلة واحدة وC. krusei عزلتين. امكن الحصول على 588 عزلة بكتيرية من مجموع عدد الحالات الموجبة للزرع البكتيريولوجي لمجموعتي المرضى والسيطرة البالغ عددهم ( 140 ) امراة شخصت فيها سبعة اجناس من البكتيريا اللاهوائية والانواع التابعة لها وهي : Peptostreptococcus spp, Peptococcus spp, Prevotella spp , Streptococcus spp, Bacceroides spp, Propionibacterium spp, Lactobacillus spp, كما تم تشخيص انواع من البكتريا المتحملة لوجود كميات قليلة من الاوكسجين وهي : Strept . mitis , Entero , faecalis , Gardnerella vaginalis اضافة الى اربع اجناس وبعض انواعها من البكتريا الهوائية وهي Proteus spp , Staphylococcus spp , Escherichia spp, Pseudomonas spp .ولقـد كان النوعان G.vaginalis , Bacteroides fragilis من اكثر الانواع عزلا في مجموعتي النساء الحوامل وغير الحوامل المصابات بالتهاب الفرج والمهـبل اللانوعي B.V . وفيما يخص عوامل الضراوة لخميرة الكانديدا والانواع التابعـــة لها وجد ان 28 عزلة ( 76 % ) منتجة للانزيم الحال للشحوم المفسفرة Phospholipase و6 عزلات ( 16 % ) ضعـيفة الانتاجية لهـذا الانـزيم و( 3 ) عزلات ( 8 % ) غير منتجة من اصل ( 37 ) عزلة للنوع C. albicans اماعزلات C. tropicalis فكانت 15 عزلة ( 75 % ) منتجة للانزيم و3 عزلات ( 15 % ) ضـعيفة الانتاجية وعزلتان ( 10 % ) غير منتجة من اصل 20 عزلة . اما عزلات النوع C.dubliniensis فكانت منـها ( 5 ) عزلات ( 71% ) منتجة من اصل (7) عزلات فى حين انتجت عزلة واحدة للنوع C.glabrata هذا الانزيم .وعند دراسة انتاج الانزيم الهاضم للبروتينات Proteinases كعامل اخر من عوامل الضراوة فقد تباينت قدرة الانزيمات المنتجة مـن عزلات الكانديدا على هظم البروتيــن بين ( 175 - 30 ) مكغم / مل وتفاوتت العزلات في قابليتها على انتاج الانزيم فكانت هناك 29 عزلة منتجة من اصل 74 عزلة كانديدا وكانت ( 7 ) منـها مـن النوعC.albicans و( 8 ) منها للنـوع C. tropicalis , وثلاث منها للنوع C. dubliniesis وعـزلة واحـدة للنـوع C. glabrata ولم تتمكن عزلات النوعين الاخرين من انتاج الانزيم وهما C.parapsilsosis وC. krusei . ومن حيث عامل الضراوة الثالث وهو قدرة الخميرة على الالتصاق بالخلايا الطلائية فقد تفاوتت ايضا عزلات الخميــرة فـــي اظهار هـــذه القدرة وكان النوعان C. albicansوC. dubliniensis هما الاكثر كفاءة في الالتصاق من بين الانواع الاخرى وكانت نسبة خلايا الخميرة الملتصقة بالخلايا الطلائية في درجة الحرارة 25 م اعلى من التي حصلت عند درجة 37 م للعزلة نفسها ولكن التحليل الاحصائي لم يظهر فروقا معنوية عالية .كانت جميع عزلات خميرة الكانديدا مقاومة لمادة النستاتين وبتراكيز عالية جدا بلغت 256 مكغم / مل في حين كان المستحضر Clotrimazole هـو الافضل مـن بين مشتقات الازول الاخرى اذ كانت جميع العزلات حساسة له فقـد تراوحت قيـم (MIC ) بيـن ( 2 - 125, 0) مكغم / مل للنوعين C.albicans , C.tropicalis و( 0.5 - 0,125) للنوعين C.dubliniensis وC.glabrata وكانت قيم MFC اكبر او تساوي 4 مكغم / مل . بينـما تفاوتت حساسية عزلات الخميرة اتجاه مشتقات الازول الاخرى اذا اظهرت ثلاثة انواع من الخميرة مقاومة لمضاد Ketoconazule وهي C. albicans , C.dubliniensis , C. glabrata اذ تراوحت قيم MIC ( 0.5 - 32 )،( 0.25 - 16 ) , 160.25 - - مكغم / مل على التوالي بينما كانت الانواع الثلاثة الاخرى حساسة له . وكانت قيم MFC على العموم اكبر ويساوي 32 مكغم / مل . وكانت جميع العزلات حساسـة لمضاد Miconazole اذ تراوحت قيم ( MIC ) مـن ( 4 - 8 ) مكغم / مـل ضد النوع C. albicans واقلها هـــي للنوع C.dubliniensis وهي (0.125 - 1.0) مكغم / مـل بينما كانت قيمة MFC تتراوح بين اكبر او يساوي 4 الى اكبر او تساوي 16 حسب نوع العزلة . وكانت قيم MIC للمضاد Fluconazole مرتفعة لكنها لم تتجاوز 32 مكغم / مل ولذا اعتبرت العزلات حساسة ولكن بتراكيز عالية بينما كان MFC له اكبر او يساوي 64 .كانت قيم MIC لمضاد Amphotericin B هــي الافضل اذا بلغت (0,125 - 0,5 ) مكغم / مل اما MFC فكان يساوي 1 مكغم / مل لقد اظهرت النتائج ان طريقة التخافيق باستعمال الوسط الزرعي السائل لتحديد MIC هي الافضل مقارنة باستعمال الوسط الزرعي الصلب اذ كانت قيم MIC مرتفعة مقارنة بقيم MIC بالطريقة الاولى .ولدراسة الفعالية التضادية لبعض انواع البكتريا المعزولة من اعالي المهبل على عوامل الضراوة وحيوية خميرة الكانديدا ، انتخبت 32 عزلة بكتيرية تابعة لاجناس مختلفة على اساس ما اظهرته من تاثير تضادي في التجارب الاولية على عوامل الضراوة او الحيوية او كلاهما وهذه العزلات هي ثلاث عزلات تابعة للنوع Peptostreptococcus prevotii ، ثلاث عزلات تابعة للنوع propianibacterium granulosum، وست عزلات تابعة للنوع Lactobacillus acidophilus وخمس عزلات تابعة للنوع L. gensenii وثلاث عزلات لكل من النوعين Streptococcus mitis وEnterococcus faecalis كما وانتخبت عزلات الخميرة الاكثر كفاءة في التجارب قيد الدراسة واعتمادا على نتائج الجزء السابق .بعد ان نميت العزلات البكتيرية السابقة الذكر في اوساط زرعية مناسبة لكل منها تم الحصول على رواشح مزارعها السائلة وتم تركيز الرواشح الــى نصف الحجم ( رم 1) والى ربع الحجم ( رم 2 ) مع الاحتفاظ بجزء من الراشح غير المركز . لم تظهر الرواشح غير المركزة تاثيرا على هذه العوامل ولقد بدا واضحا تاثير الراشح المركز لمرة واحدة او لمرتين وبدرجات متفاوته وذلك لاختلاف الاجناس البكتيريا والانواع التابعة لها . كانت اكـثر الـرواشح تاثيرا هـي الـرواشح المركزة م1 وم 2 لكـل مـن العزلات Sm3 , Ef3 , Lj5 , La5 , La6 على فعالية الخميرة في انتاج الانزيمات الهاضمة للبروتين والانزيمات الحالة للشحوم المفسفره وكان النوع C. albicans اكثر حساسية اتجاه المعاملة بهذه الرواشح مقارنة مع الانواع الاخرى ، كما اثرت هذه الرواشح على خفض نسبة الانبات في المصل وبفرو قات معنوية كبيـرة وصلت الى >0.001 P . واظهر ( رم1 ) ( رم2 ) للعزلة La 6 تاثيرا في خفض حيوية الخميرة مقدرة بوحدة مستعمرة لكل مل ( CFU/ml ) وتبين ان لحموضة هذه الرواشح تاثيرا في عملية التثبيط ولكن لا يعزى له التاثير الكلي. فعند مقارنة تاثير الحموضة فقط فـــي اوساط زرعيه سائلة ذات pH محدد ومماثل الى pH الرواشح مما يشير الى ان هذه الرواشح تحتوي مركبات ذات تاثير مثبط ، كما لم تظهر رواشح العزلات الاخرى تاثيرا واضحا او كان بعضها غير مؤثر . ولمحاولة فهم طبيعة تاثير خلايا العزلات البكتيرية السابقة على عملية التصاق خميرة الكانديدا بسطوح الخلايا الطلائية وجدنا ان العزلات Lj5 , La5 , Pp3 , Pg3 , Sm3 , Ef3 , La6 هي الاكثر تاثيرا في خفض نسبة الالتصاق وعلى التوالي وقد اظهرت العزلات طرقا مختلفة في طبيعة منع الالتصاق اما باحاطة خلايا الخميرة بغلاف من خلايا البكتريا او باحاطة الخلية الطلائية بغلاف من خلايا البكتريا او كلاهما مما يمنع التصاق الخميرة بسطح الخلية الطلائية وذلك من خلال غلق المستقبلات على سطوح الخلايا. | 200 high vaginal swabs were taken from 200 married women, 130 of them were non - pregnant (N.P) and 70 were pregnant (P.) women. Of the 130 N.P : 90 were suffering from vaginitis and 40 were healthy controls. Of the pregnant group 40 were suffering from vaginitis and the rest 30 were healthy controls. Thus there were a total of 130 infected and 70 healthy. Sample were taken during the period of first of June 2002 till the end of Feb. 2003, under the supervision of specialized gynecologist in the general No’man hospital in Adhamia , Baghdad . A special questionnaire was prepared for each individual. As result of cultural and microbiological examinations of the sample and depending on the clinical and microbiological features of the 130 infected pregnant (90) and non - pregnant (40) women their vaginitis were devided into three groups, namely : (a) : Bacterial vagnosis (B.V) : Appeared in (23) out of (70) pregnant women [ including (30) healthy and (40) infected i.e. 33% ]B.V. also appeared in 25 non - pregnant women out of 130 [ including (40) healthy and (90) infected i.e. 19% ](B) : Volavaginal condidiasis (V.V.C).Appeared in 13 women out of (70) pregnant women ( 18%) [including 30 healthy and (40) sick] it V.V.C also appeared in (43) infected non - pregnant women out of 130 ( 33%)[ including (40) healthy and (90) sick](C ) : Volvavaginosis due to mixed bacterial and fungal infection. I.e. mixed infection (M.I) : Appeared in (4) patient out of (70) pregnant women (6%) [including 30 healthy and (40) sick women ] . It also appeared in (22) patients out of (130) non - present women [including (40) healthy and (90) sick pregnant women] A total of (74) isolates of candida SPP were isolate from non pregnant and pregnant women of this number 38 isolates from (43) VVC non pregnant cases, (16) isolates from 22 MI non pregnant cases, 5 isolates from 40 healthy non pregnant group, 11 isolates from 13 VVC pregnant women, 3 isolates from 4 MI pregnant women, and one isolates from 30 healthy.The following species of Candida were identified : C. albicans 37 isolates , C. tropicalis 20 isolates , C. glabrata 7 isolates , C. dubliniensis 7 isolates , C. parapsilosis one isolate , and C. kursei 2 isolates .Bacteriologically 588 isolates of bacteria were obtianed form 140 women positive for bacterial cultural ; these include several species of 7 anaerobic bacterial genera ; peptostreptococcus, peptococcus , Streptococcu spp, prevotella spp, Bacteroides spp, lactobacillus spp and propionibacterium spp. Similarly the following microaerophilliic bacteria were isolated; Gardnnerella vaginalis, Enterococuus faecalis , and Streptococcus mitis . The following aerophilic were also isolated, staphyllococcus spp, proteus spp Escherichia spp and pseudomonas spp. the most frequently isolated species a mong infected women group with ( B.V) were Bacteriodes fragilis and G. vaginals . Concerned the virulence factors of the yeast candida spp like production of phospholipases and proteinasas, besides the adherence on epithelial cells ( from human mouth ) and drug tolerance. Phpspholipase was produced by 28 isolates (76 %) out of 37 of C. albicans whereas the rest 6 isolates (16 %) were weak producers and 3 isolates (8 %) did not produce this enzyme. On the other hand out of 20 isolates of C. tropicalis 15 (75 %) were weak producer and 2 isolates (10 %) were not producers of the enzyme . Of The 7 isolates of C. dubliniesis 5 (71% ) could produce the phospholipase also one ( 14 % ) of the 7 isolated of C.glabrata could produce theis enzyme . The enzyme proteinase was produced by 29 out of 74 (39 %) isolated of candida spp out these 17 were C.albicans 8 were C. tropicalis , 3 were C. dubliniesis , one was C. glabrata the other species did not produce the enzyme. Ability of the isolates for attachment onto the surface of epithelial cells varied according to the species. Both C.albicans , C. dubliniesis were more efficient than other species . The percentage of epithelial cells attached by yeast cells were higher at 25C than at 37 C for the same isolate of the yeast, though this difference was not significant. As the resistance to antifungals concerned, we found that all isolates of candida were resistant to nystatin . The measured minimum inhibitory concentration (MIC) reached 256 g/ml . On the other hand , all isolates of candida were much more susceptible to clotrimazole with MIC ranging ( 0,125 - 2 ) g/ml for C.albicans and C. tropicalis and about ( 0,5 - 0.125 ) g / ml for C.dubliniesis and C.glabrata . The minimum fungicidal concentration (MFC) was 4 ug/ml or more for these Candida spp .The (MIC) for ketocanazole against C. albicans , C.dubliniesis , C.glabrata ranges were [0.5 - 32, 0.25 - 16 and 0.25 - 16] g / ml respectively, whereas the other species of candida were more sensitive to ketaconzole , and the ( MFC ) generally was equal to or higher than 32 ug / ml .The (MFC) for Miconzole was (4 - 8) g / ml against C. albicans an (1 - 0.125) g / ml agianst C.dubliniesis , the ( MFC ) ranged between equal to or higher than 4 and 16 g / ml . Fluconzole was less effctive than the others as the (MIC) values agianst all species were 32 g / ml or les. While the (MFC) was equal to or higher than 64 g / ml. Amphoterricin B was the most effective as the (MIC) values against all isolates of candida were (0.125 - 0.5) g / ml and MFC was 1 g/ ml.For the determination of (MIC) we found that using serial dilution of liquid cultures was better than using solid agar media. The recorded (MIC) result using agar media were higher than those obtained in liquid media.We studied the antagonistic effect against virulence factors of Candida spp by (23) isolates of bacteria isolated from healthy vagina. The selection of the candida and the bacterial isolates based on preliminary tests. So three isolates of peptostreptococuus prevotii, three isolates of propionibacteriume granulosum, six isolates of lactobacillus acidophilus , five isolates of lactobacillus jensenii , three isolates of each of streptococcus mitis , and Enterococcus feacalis were used in such tests as culture filtrates and / or as bacterial cells.The cultural filtrates were concentrated to the half or to the quarter volume of the original, as the non - concentrated culture filtrates did not show any effect. Different filtrates showed different levels of effect, the more effective were the double or quadruple concentrates of the culture filtrates of L.acidophilus isolates no 5 and 6, L.jensenii isolates No. 5, Enter.faecalis isolates No. 3 and strep.mitis isolates No. 3 . These filtrates adversely affected the phospholipase and proteinase enzymes, C.albicans being more affected than other species. Also these filtrates reduced significantly (P < 0.001) the percentage of germ forming cells of C.albicans . The culture filtrate (conc. to half or to quarter volume) of isolate No. 6 of L.acidophilus greatly reduced the viability (CFU /ml) of C.albicans and other species. This effect was not totally due to the acidity (low pH) since similar pH values in control tests did not reduce viability to the same level and did not effect the yeast cells. We found that adhesion of candida cells to epithelial cells was reduced in the presence of bacterial cells. The following bacteria were effective and they are listed below starting from the most to the less effective in reducing the number of adhering yeast cells (the number refers to the isolate number L.acidophilus 6, Enter. feacalis 3, Strep. mitis 3, P.granulosum3 peptost. prevotii 3 , L.acidophilus 5 and L.jensenii 5 .Some species of bacteria prevented adhesion by surrounding the yeast cells while other species surrounded the epithelial cells some did both

The Role of Interleukin - 8 Associated with Peptic Ulcer Disease Induced by Helicobacter pylori == The Role of Interleukin - 8 Associated with Peptic Ulcer Disease Induced by Helicobacter pylori

Author name: ايمان عبد الجبار محمد العاني
Supervisor name: Nazar E. Naser | Abdul Wahab Al - Shaikhly
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت الدراسة لتوضيح تاثير الشذوذ المناعي حول الكشف السريري لدى مرضى مصابون بقرحة المعدة والاثني عشري في بغداد, بالاضافة الى تهيئة معالم اوضح لدور الانترلوكين - 8 في الامراضية المناعية عند هؤلاء المرضى والتي سببها بكتريا Helicobacter pylori. كذلك شملت الدراسة استخدام مختلف الفحوصات المناعية والبكتريولوجية في الكشف عن وجود بكتريا H.pylori المسببة لمرض قرحة المعدة والاثنى عشري . تم شمول (48) مريضا (31 من الذكور و17 من الاناث) وباعمار تراوحت ما بين ال30 - 50 سنة مصابين بمرض قرحة المعدة والاثني عشري ومجموعة من الافراد الاصحاء كمجموعة سيطرة ملونة من 62 شخصا منهم( 26 من الذكور و36 من الاناث ) باستخدام طرائق تحري بكتريولوجية شائعة وحديثة , مناعية وتشريح انسجة مرضية للتحري عن وجود الاصابة ببكتريا Helicobacter pylori.اعتمد التشخيص النهائي على ايجابية اي من الاوساط الثلاثة او بمصاحبة فحص اليورييز الايجابي وفحص النسيج المرضي, اذ اثبتت النتائج ان من بين اوساط الزرع الثلاثة المختلفة , كان HP agar هو الوسط الاكفا في عزل البكتريا H.pylori عندما حقق على معدل عزل قياسا بكل من وسطي اكار خلاصة الدماغ / القلب واكار كولومبيا ( 79.2% , 35.4% , 25% على التوالي). اظهر تقدير اداء الاختبارات المصلية في التنبؤ بالاصابة ببكترياH.pylori لدى مرضى قرحة المعدة والاثني عشري وتمييزهم عن مجموعة الاصحاء , ان تحديد وجود H.pylori specific IgG باتباع طرائق حديثة مختلفة قد يحسن من عملية التنبوء بالاصابة بالبكتريا اكثر من علاقتها بمرض قرحة المعدة والاثني عشري نفسه.كما وتضمنت الدراسة اتباع طريقتين لتشخيص وجود مضادات H.pylori specific IgG حيث اظهرت النتائج ان طريقة الاليزا (ELISA) اعطت معدل ايجابية اعلى لدى مجموعة المرضى مقارنة بطريقة miniVidas (95.8% , 89,6% على التوالي). ومن الجدير بالملاحظة ان مجموعة السيطرة H.pylori specific IgG بلغت نسبة ( 42.2% او 46.8% عند القياس بطريقة miniVidas او ELISA على التوالي). لم تظهر فوارق معنوية لمستوى وسط H.pylori specific IgG عند قياسه بالطريقتين , اية فروق معنوية بشكل واضح بين مجموعة المرضى ومجموعة السيطرة , في حين ظهرت فروق معنوية بين وجود من عدم وجود H.pylori في مجموعة المرضى باستخدام طريقة miniVidas فقط ) وسط الزرع =3 ng/ ملي لتر و1.15 ng / ملي لتر على التوالي). لم يكن كلا من فحص H.pylori specific IgG واختبارات ال Helicogen ذات كفاءة جيدة في التنبؤ بمرض قرحة المعدة والاثني عشر للتفريق بين مجموعتي المرضى والاصحاء , اذ كان الPPV قريبا جدا من احتمال وجود المرض دون اجراء اي اختبار. ومن جهة اخرى فان اجراء الفحص السيرولوجي في التنبؤ بالاصابة ببكتريا H.pylori لدى المرضى المصابين بقرحة المعدة والاثني عشري اظهر بان طريقة اليزا قد تعتبر فحصا حساسا جدا (درجة الحساسية 100%) في التحري عن وجود H.Pylori التي نتج عنها PPV , NPVتاما لدى 87%. كما وتم الحصول على اعلى محدودية للاختبار الايجابي ( 97.5%) باتباع طريقة miniVidas رغم ان حساسية الاختبار كانت اقل بقليل من طريقة ELISA (97.5%). واستنادا الى النتائج فان H.pylori specific IgG الذي تم تقديره بطريقةminiVidas كان افضل خيار للتميز بين H.pylori السالبة والموجبة حيث اظهر القياس نسبة حساسية عالية وPPV تتجاوز 90.7% والتي كانت مساوية لمعيار النفاذ الذي تم الحصول علية باستخدام الطريقتين. اثبتت الدراسة الحالية وجود فوارق معنوية في المستوى الكلي لمصل IgG بين المجموعات الموجبة والسالبة لدى المصابين ببكتريا H.pylori (المتوسط الحسابي 1531.2 ملي غرام/ملي لتر و917.7 ملي غرام/ملي لتر على التوالي ) في حين لم تظهر فروقات معنوية تتعلق ب IgM, IgA, C3 & C4 بين هاتين المجموعتين. ومن ناحية اخرى تميز IgG وC4 لدى المقارنة بين مجموعة المرضى ومجموعة السيطرة (المتوسط الحسابي ل IgG كان مساويا الى 1397 ملي غرام / ملي لتر و1067.4 ملي غرام / ملي لتر والمتوسط الحسابي لC4 كان 49.8 ملي غرام / ملي لتر و29 ملي غرام / ملي لتر على التوالي). تشير البيانات المستخرجة من الدراسة الى ان مستوى IL - 8 في مرض التهاب المعدة لم يكن يعتمد على الاصابة ببكتريا H.pylori ولكن زيادة ال IL - 8 في مستوى المصل بين حالات الاصابة بقرحة المعدة والاثني عشري قد تعزى الى التهاب النسيج الذي يصاحب المرض ما دام هناك فارق معنوي بين مجموعة المرضى ومجموعة السيطرة, في حين لم تكن تلاحظ اية فروق معنوية بين المجموعات الموجبة والسالبة لبكتريا H.pylori . وقد تكون لهذه النتائج مضامين هامة للتوصل الى تبصر اعمق في تفهم اليات البكتريا المسببة للمرض فيما يتعلق بالاستجابة المناعية ضد الاصابة ببكتريا H.pylori | This study was conducted to obtain more clarification about the impact of immunological abnormalities on the clinical expression of peptic ulcer among Iraqi patients, in addition to provide further insights into the role of some interleukins in immunopathogenesis of patients with peptic ulcer disease induced by Helicobacter pylori. The study also included various immunological and bacteriological investigations in detecting the presence of H. pylori associated with peptic ulcer disease.Forty eight (31 males and 17 females) patients suffering from peptic ulcer, and sixty two (26 males and 36 females) apparently healthy individuals (as control) , were subjected to different recent and common bacteriological, immunological and histopathological evaluations regarding the ages of the patients and healthy individuals included between 30 - 50 years which were done for detecting Helicobacter pylori infection.Final diagnosis was completely established when any of the three culture media showed the evidence or a combination of positive urease test and histological evidence. The results documented that among different types of cultures media, Helicobacter pylori agar was the most superior medium for the recovery of H. pylori 79.2 %, which provided the highest isolation rate compared with Brain Heart Infusion agar and Colombia agar (35.4 %, and 25 % respectively).Assessing the performance of serology in predicting H. pylori infection associating with peptic ulcer patients and / or distinguishing them from healthy controls, demonstrated that determination of H. pylori specific IgG using recent different methods may improve predicting the infection of H. pylori rather than relating to peptic ulcer disease itself.In the present study, two methods were used for detecting presence of H. pylori specific IgG antibodies. The results showed that ELISA method gave a higher cases positivity rate compared to miniVidas method (95.8%, 89.6% ,respectively) .It is worth noting that a good proportion of healthy controls had positive H. pylori specific IgG (45.2 % or 46.8 % measured by miniVidas or ELISA method respectively). The medium level of H.pylori specific IgG measured by both methods did not significantly differ between patients and control groups, while the differences observed for the presence of H. pylori compared with its absence among cases were statistically significant only by using the miniVidas method (Medium = 3 ng/ml, and 1.15 ng/ml respectively). The present study showed that both H. pylori specific IgG antibodies test and Helicogen tests were not so useful in predicting peptic ulcer disease distinguishing them from healthy control since the PPV was nearly close to the prior probability of having the disease without doing any test. On the other hand, assessing the performance of serology in predicting H.pylori infection in patients with peptic ulcer disease demonstrated that ELISA method would be a very sensitive test (sensitivity = 100 %) in detecting the presence of H. pylori, that resulted in a complete NPV and PPV of 87%.The highest specificity of positive test (97.5%) was obtained by using miniVidas method. Its sensitivity, however, was slightly lower than ELISA method (97.5 %). According to the results, H. pylori specific IgG measured by miniVidas method seems to be the best choice to differentiate between positivity and negativity of H. pylori since it offered a high sensitivity and a PPV exceeding 90.7% which was equal to the validity of parameter obtained by using both methods. The present study documented a significant variation in total serum IgG level between positive and negative groups of H. pylori infection,(mean 1531.2 mg/ml and 917.7 mg/ml ,respectively), while no significant variations were reported in IgM, IgA, C3 and C4 between these two groups. On the other hand, only IgG and C4 varied significantly regarding cases and control groups (mean of IgG = 1397 mg/ml and 1067.4 mg/ml, mean of C4= 49.8 mg/ml and 29 mg/ml, respectively). Data from the study indicated that IL - 8 level in gastritis was independent of H. pylori infection, but one would attribute the increase in IL - 8 serum level among cases with peptic ulcer to the tissue inflammation related to the disease since there was a significant variation between cases and controls, while no differences were observed between positive and negative groups of H. pylori infection. These findings might be of important implications for having further insights into understanding the pathogenic mechanisms of bacteria in relation with immunologic response against H. pylori infection.

دراسة بيئية وامراضية على جرثومة كليبسيلا في عينات سريرية ونهر دجلة في بغداد == Environmental and Pathogenic Study on Klebsiella Spp. in Samples Collected from Patients and Tigris River at Baghdad

Author name: افراح فهد عبد الكريم
Supervisor name: كاظم هاشم ياسين الاعرجي | كفاح احمد جاسم
General topic: Biology
Specific topic: Microbiology
Degree: Doctorate
Language: Arabic
University location: Baghdad
First pages:
Abstract: تفرعت الدراسه الحاليه خطين رئيسيين.تضمن الخط الاول تقييم نهر دجله ضمن محافظة بغداد من خلال دراسة العوامل الفيزيائيه والكيميائيه والبايولوجيه والتي لها تاثير على نوعية مياه نهر دجله بينما تضمن الخط الثاني دراسه جزيئيه لبعض عوامل الضراوه، المقاومه للمضادات الحيويه وانتاج الغشاء الحيوي لبكتريا K. pneumoniae والمعزوله من مصادر سريريه وبيئيه. محطات الدراسه تضمنت ثلاثة مواقع على نهر دجله ضمن مدينة بغداد، الموقع الاول يقع شمال مدينة بغداد والتي تقع شمال منطقة الكريعات بالقرب من جسر المثنى، والموقع الثاني يقع قرب مدينة بغداد الطبيه قرب جسر باب المعظم بينما يقع الموقع الثالث الى الجنوب بالقرب من جسر الجادريه. جمعت عينات شهريه من المواقع المذكوره انفا والواقعه على نهر دجله ابتداءا من تشرين الثاني/2013 ولغاية تشرين الاول/2014 . فضلا عن ذلك جمعت عينات سريريه من عدة مستشفيات في بغداد وباستخدام حاويات معقمه. اظهرت النتائج ان قيم درجات الحراره لمياه نهر دجله تراوحت بين (9 - 31 م◦) وهذا من صفات جو العراق والذي يتميز بتقلبات موسميه بدرجات الحراره من جهه وبتغيرات يوميه من جهه اخرى، كانت دالة الحامضيه لمياه النهر تميل للقاعديه الخفيفه وتراوحت بين (6.1 - 8.7) مع ظهور حامضيه خفيفه في الموقع الثاني وقد يعود السبب في ذلك الى مخلفات مدينة الطب والتي تدل على وجود تلوث. تراوح تركيز الاوكسجين المذاب بين (6.6 - 9.9 ملغم/لتر) وهذا يظهر ان مياه نهر دجله جيدة التهويه وكذالك اظهرت النتائج ان المتطلب الحيوي للاوكسجين كان ضمن الحدود المسموح بها دوليا ومحليا حيث تراوحت قيمته بين (0.8 - 3.5 ملغم/لتر). العكوره تظهر مدى شفافية المياه وقد تراوحت قيم العكوره لمياه النهر مابين (16 - 102 نفلوميتر) وسجلت الدراسه ارتفاع ملحوظ في قيم التوصيليه الكهربائيه (651 - 1170 ملغم/لتر). كذلك وجد ان قيم المواد الصلبه الذائبه تراوحت بين (406 - 751 ملغم/لتر) وكان لتاثير الفصول عليها اكثر من تاثير المواقع. بينما سجلت الملوحه تركيز (0.72 - 0.39ملغم/لتر). سجلت النتائج لتركيز المعادن الثقيله ما بين (0.001 - 0.6 ملغم/لتر)،(0.00 - 0.25 ملغم/لتر) لكل من الحديد والزنك على التوالي، معدل التراكيز لهذه المعادن اظهر تغايرا شهريا خلال مدة الدراسه حيث كانت معدلات الحديد متجاوزه الحدود المسموح بها دوليا بينما معدلات الزنك ضمن الحدود المسموح بها. تراوحت قيم الفوسفات لنهر دجله مابين (0.11 - 0.37). من جهه اخرى كانت نتائج الدراسه البكتريولوجيه قد سجلت معدلات مرتفعه لكل من العدد الكلي الحي للبكتريا واعداد بكتريا القولون الكليه واعداد بكتريا القولون البرازيه والتي تجاوزت الحدود المسموح بها دوليا ومحليا والتي كانت دليل على وجود تلوث احيائي وقد سجلت القيم ما بين (195 - 8200CFU/ml ) ، (3625 - 160000 cell/100ml ) ، (24000 - 142500 cell/100ml ) على التوالي. جمعت 75 عزله بكتيريه تابعه للجنس Klebsiella spp. وتوزعت مابين 40 عزله بيئيه و35 عزله مرضيه، شخصت العزلات بانها : K. pneumoniae (40), K. oxytoca (8), K. terrigena (7), K. ornitholytica (5) اعتمادا على الخواص الزرعيه، المجهريه والكيموحيويه وقد تم تاكيد التشخيص باستخدام نظام API - 20E وVITEC2 systemقد تم عد البكتريا باستخدام طريقة الترشيح الغشائي وباستخدام وسط انتقائي.تم تحديد حساسية العزلات تجاه (23) مضاد حيوي واظهرت النتائج بصوره عامه مقاومه العزلات لاغلب المضادات المستخدمه كما اظهر التحليل الجزيئي ان عزلات K. pneumoniae كانت حامله لجين CTX - M gene والذي له علاقه بمقاومة مضادات البيتالاكتام حيث اظهر تفاعل تضخيم السلسله PCR حزمه واضحه وبحجم (551 bp) فضلا عن ذلك تم دراسة جين aac(3) - II والذي يتعلق بمقاومة مضادات الامينوكلايكوسايد وباستخدام PCR حيث ظهرت حزمه واضحه بحجم (877 bp) . درست قدرة البكتريا على تكوين الغشاء الحيوي باستخدام ثلاثه طرق مختلفه وقد اظهرت النتائج ايجابيه الفحص وكذلك تم تضخيم جين mrkD والذي يعتبر تحت الوحدة المسؤله عن الاتصاق للنوع الثالث من الاهداب واظهر PCR حزمه بحجم (966 bp). عوامل ضراوه اخرى درست جزيئيا لهذه البكتريا وذلك باستخدام تفاعل تضخيم السلسله تضمنت rmpA , magA وkfu وهي جينات مسؤله عن تكوين الكبسوله وحوامل الحديد وكذلك تم تضخيم جين 16SrRNA وذلك باستخدام conventional and real time PCR وذلك من اجل تشخيصها جزيئيا واظهرت النتائج حزم واضحه بحجم (535 bp) لجين rmpA، (797bp) لجين kfu و(160 bp)عند استخدام برايمر متخصص لجين 16SrRNA بينما لم تظهر اي حزمه عند تضخيم جين magA. | The present work was branched into two line first line aim to study Tigris River within Baghdad City to assess Physical, chemical and biological characteristics of water river that influence water quality of the Tigris River. The second line conducted to study molecular characterization of virulence factor, antibiotic resistance genes and biofilm formation of K. pneumoniae isolated from clinical and environmental sources. The study area included three stations on Tigris River Within Baghdad city, the first was located at North of Baghdad in the northern area of Ghera'att City, and the second at middle part in the area Baghdad medical city, whereas the third station located at South part in the area near Al - Jadiriah Bridge. Monthly samples were collected from three station located on Tigris river, from November 2013 to October 2014. In addition Samples were collected from different Hospital’s Environment and patients by using sterile containers.Results obtained showed that temperature value of Tigris water has ranged between (9 - 31 Cº) the climate of Iraq recognized with seasonal fluctuation from one side and day and night fluctuation from other side. The degree of pH in Tigris River tend to be light alkalinity as it ranged between (6.1 - 8.7) with slightly acidic at station2 and this may be due to the effect of medical city discharge that indicate presences of pollution. The concentration of dissolved oxygen was ranged between (6.6 - 9.9) mg/l and it seems that the water of Tigris is ventilated well. The results showed that values of BOD5 ranged between (0.8 - 3.5 mg/l.) which is within the International allowable levels. The Turbidity reflects the transparency in water, the Turbidity's values ranged between (16 - 102) NTU. The results showed that there is a noticeable raise in value the electrical conductivity that recorded between (651 - 1170) mg/l. It is found that the total dissolved solids values were affected by its seasons more than by its locations, It was recorded higher and lower values of (TDS) (406 - 751) mg/l. whereas the salinity recorded (0.72 - 0.39 ppm) .The results showed that concentrations of heavy metals iron and zinc were varied between 0.001 - 0.6 mg/l and 0.00 - 0.25 mg/l respectively. Mean concentrations of these metals in Tigris River showed monthly variations during the study period and the Fe values exceeded the International allowable levels while Zn within permissible limit for Iraqi and WHO standards for river system maintains. Phosphate values ranged between (0.37 - 0.11). On the other side, The bacteriological studies indicated a high level of total viable bacterial counts in water of the three stations and were between (195 - 8200 C.F.U/ml), While the total coliform and faecal coliform counts exceeding acceptable limits are indicative of pollution that recorded (3625 - 160000 cell/100ml ) and (2400 - 142500 cell/100ml) respectively.A total of 75 klebsiella spp. isolates had been collected and distributed between 40 environmental isolates and 35 clinical isolates. Isolates were identified as K. pneumoniae (40), K. oxytoca (8), K. terrigena (7) and K. ornitholytica (5) depending on cultural, microscopical, biochemical characteristics, API 20E and VITEK 2 system. Enumeration of klebsiella sp from water samples had been made by using membrane filtration technique with selective media. The results of Antibiotic susceptibility of K. pneumoniae isolates against (23) antibiotic declared that, generally, the isolates were resistant to the most antibiotics used and molecular analysis showed that all isolates were carrying CTX - M gene concern β - lactam group with PCR product band of molecular size 551 bp and aac(3) - II gene which concern with aminoglycosids group resulting in PCR product with band of molecular size 877 bp.Biofilm formation assay was determined through three different methods and the results showed the ability of K. pneumoniae isolates to produce biofilm, also mrkD gene which is adhesive subunit of type3 fimbriae that play important role and mediated biofilm formation had been amplified and results PCR product with band of molecular size 966 bp. Another virulence factor of K. pneumoniae isolates was studied molecularly by using (PCR), magA, rmpA, kfu and for further diagnosed molecularly 16S rRNA genes were amplified using conventional and real time PCR, the results showed that the isolates of K. pneumoniae gave a clear band with a molecular size 535bp for rmpA, 797bp for kfu and160 bp when PCR was performed with the primer that target the 16S rRNA.while no bind had been obtained for magA

دراسة وبائية بكتريا المكورات المعوية ENTEROCOCCI المقاومة للعديد من المضادات الميكروبية والمسببة للاصابات في بيئة المستشفيات == Epidemiological study of Multi - Antimicrobial resistant Enterococci that causes Nonsocomial Infections

Author name: محمد حسن يونس محمد
Supervisor name: مروان صالح محمد | خليل مصطفى خماس
General topic: Biology
Specific topic: Microbiology
Degree: Doctorate
Language: Arabic
University location: Baghdad
First pages:
Abstract: في هذه الدراسة جمعت ( 637 ) عينة من مصادر مختلفة ( سريريه , سطوح بيئية , اجهزة طبية , مياه ) للفترة من تموز 2005 الى كانون الثاني 2006 وقد تم اخذ العينات من وحدة الديلزة في مستشفى بغداد ومن وحدة الناظور في مستشفى اليرموك ومن ردهة الاطفال في مستشفى ابن البلدي .استخدم نوعين من الاوساط الزرعية للعزل الاولي لبكتريا المكورات المعوية المقاومة للعديد من المضادات الحياتية وهما Bile aesculin azide agar وVancomycin resistant - enterococci agar .اعتمادا على الصفات المورفولوجية , المجهرية ,والفحص المصلي ( فحص التلازن بالشريحة ) , وفحص الكاتاليز , تم الحصول على 18 عزلة تمثل بكتريا المكورات المعوية المقاومة للعديد من المضادات الحياتية. واعتمادا على التشخيص بنظام ( Api - 20 Strept. Strip ) , اظهرت النتائج ان 13 عزلة من مجموع 18 عزلة ( 72% ) تعود الى النوع E.faecium و5 عزلات من مجموع 18 عزلة ( %28 ) تعود الى النوع E.feacalis .فحص الحساسية بطريقة الانتشار من الاقراص تجاه 10 انواع من المضادات الحياتية ( بنسيلين ج , الجنتامايسين , السايبروفلوكساسين , الكلورامفينيكول , تتراسايكلين , النايتروفيورانتون , الباستراسين ,اميبيم , اميكاسين ,حامض نالدكسك ) اظهرت العزلات مقاومة عالية ( 100% ) لخمسة من المضادات الحياتية (اميكاسين , نالدسك اسد, تتراسايكلين , الباستراسين , الجنتامايسين ) وبالتالي فهي مكورات معوية مقاومة للعديد من المضادات الحياتية .فحص الحساسية بطريقة المرق لتحديد التركيز المثبط الادنى تجاه 9 انواع من المضادات الحياتية ( الجنتامايسين , السايبروفلوكساسين , الكلورامفينيكول , النايتروفيورانتون , فانكومايسين , سيفالوثين , سيفتازديم , سيفيبيم , بنسيلين ج ) , اظهرت النتائج مقاومة عالية ( 100% ) لكل من سيفالوثين وبنسيلين ج ( ug/ml 32 < = MIC50 ) و(16 ug/ml < = MIC50 ) على التوالي . بينما اظهرت حساسية عالية لكل من النايتروفيورانتون والفانكومايسين ( ug/ml 128 < = MIC50 ) و(16 ug/ml < = MIC50 ) على التوالي .تم استخلاص البلازميدات بطريقة التحلل القاعدي المحورة لستة عزلات من مصادر مختلفة ومن نفس الردهة وبعد الكشف عنها بوساطة الترحيل الكهربائي في هلام الاكاروزاظهرت النتائج تشابه الحزم في الموقع والحجم ولكل العزلات .تم تحديد نقاوة الدنا البلازميدي بوساطة المطياف الضوئي حيث كان تركيزا لدنا لحاصل القسمة عند الطول الموجي 260 و280 هو ( 1.95 ) مما يدل على نقاوة الاستخلاص للدنا البلازميدي.دراسة امكانية استعمال ناتج عملية التضاعف لجين (vanA ) و( van B ) المشفرة لجين مقاومة الفانكومايسين وجين ( ddI ) المشفر لجين D - alanine - D - alanine ligase المشخص للنوع E.faecium بوساطة فحص تفاعل بوليميرازالسلسلي للدنا وبعد الترحيل لناتج التضاعف لثلاث جينات لوحظ ظهور حزمة مع الجين ddI عن الجين الخاص بتشخيص النوع E.faecium فقط | This work was done on 704 samples that were collected from many sources included patients, medical instruments, ecological surfaces and water samples from three hospitals in Baghdad .For primary isolation of Multi - Drug Resistant Enterococci , two media were used ( Bile aesculin azide agar,Vancomycin - resistant enterococci ).The isolates were exposed to microscopical, morphological, biochemical test ( especially PYR test,catalase test ), serological test ( slidex Strepto - D - Kit) which proved 18 samples as Multi - Drug Resistant Enterococci .Diagnosis by ( Api - 20 Strept.strip ) we determined 13 isolates from 18 isolates ( 72% ) are belonged to E.faecium,and 5 isolates from 18 isolates ( 28%) are belonged to E.Feacalis .the antibiotic susceptibility test by using disk diffusion method as well as the determination of minimal inhibitory concentration of several antibiotics carried upon these samples . the results showed that all samples were resistant to five antibiotics . the minimum inhibitory concentration ( MIC50) of cephalosporin, penicillin G , ciprofloxacin,cefepim, and ceftazidime was > 64 µg / ml.nitrofurantoin and vancomycin had MIC50 of 128 and 16 µg / ml respectively.Pure plasmid DNA was extracted from vancomycin resistant enterococci by the evidence of UV - spectrophotometer study .Agarose gel electrophoresis of plasmid isolated from vancomycin resistant related to different sources showed slight differences in the bands mobilization and gave negative results by Pulsed Field Gel Electrophoresis ( PFGE). Determined the genes of vancomycin resistant (vanA and vanB) in isolates by PCR , the results showed that all isolates gave negative results. The best culture medium used for isolate Multi - drug resistant enterococci is Bile aesculin azide agar . in clinical samples all isolates are E.faecium ,in environmental samples all isolates are E.Feacalis .High resistant to Cephalosporines and low resistant to nitrofurantoin .vanA and vanB genes were not detected in isolates by PCR. In this study were collected ( 637) samples from different sources ( clinical , ecological surfaces , medical instruments , water ) from July in 2005 to January in 2006 . samples taken from ( Dialysis unit in Baghdad hospital , Proctoscopy unit in ALyarmok hospital , Pediatric ward in Ibn - albaldi hospital).Used two types of culture media for primary isolation of Multi - drug resistant enterococci ( Bile aesculin azide agar , Vancomycin resistant enterococci agar).dependent on morphological , microscopical, serological test ( slide Strepto - D - Kit) and (PYR) test and catalase test , we obtained 18 isolates as Multi - drug resistant enterococci. dependent on diagnosis by ( API - 20 Strept.Strip ) . the results showed that 13 isolates from 18 isolates ( 72% ) are belonged to E.faecium, and 5 isolates from 18 isolates ( 28%) are belonged to E.fecalis .The susceptibility test by using disk diffusion method against 10 types of antibiotics(Penicilin G, Gentamicin , Chloramphenicol , Nitrofurantoin , Tetracyclin , Bacitracin , Amikacin , Imepem , Nalidix acid and Ciprofloxacin) .The isolate showed highly resistant (100%) to 5 antibiotics ( Gentamicin , Tetracyclin , , Bacitracin , Amikacin, Nalidix acid) and then the isolates are resistant to Multi - antibiotics.The susceptibility test by using broth dilution method to determine MIC against 9 types of antibiotics (Gentamicin , Penicilin G, Ciprofloxacin, Nitrofurantoin, Chloramphenicol,Cephalothin,Ceftazidime , Cefepime ,Vancomycin),The isolate showed highly resistant (100%) to Cephalothin and Penicillin G ( MIC50 = >32 ug/ml )and ( MIC50 = >16 ug/ml) sequencely The isolate showed low resistant to Nitrofurantoin and Vancomycin ( MIC50 = > 128 ug/ml) and (MIC50 = > 16 ug/ml)sequencely. Plasmid extraction by modified Alkaline analysis method for 6 isolates from different sources in same ward and after detected by agarose gel electrophoresis, the results showed the same plasmid bands in size and place for all isolates. We determined the purity of plasmid DNA by UV - Spectrophotometer which concentration of DNA for divided obtained at wave length 260 and 280 nm was ( 1.95) which indicate the purity of extraction of DNA. Study of using the product of amplication of( vanA) and (vanB) gene coded for vancomycin resistant gene and( ddI) gene coded for D - alanine - D - alanine ligase gene specific for E.faecium by Polymerase Chain Reaction for DNA and after detected the product of amplification of 3 genes, the results showed that isolates gave positive result for just (ddI) gene and negative for( vanA) and( vanB) gene.

دراسة تاثير البروبايويك في تكوين الغشاء الحيوي وانتاج البروتيز لبكتريا Pseudomonas aeruginosa المعزولة من اخماج الحروق والجروح == Study The Effect of Probiotic On Biofilm Formation And Production Protease Enzyme By Pseudomonas Aeruginosa Isolated From Contaminated Burns And Wound

Author name: علا عبد الكريم كاظم النعيمي
Supervisor name: منيرة جلوب اسماعيل العبادي | ضيماء محمود ابراهيم
General topic: Biology
Specific topic: Microbiology
Degree: Master
Language: Arabic
University location: Baghdad
First pages:
Abstract: he study includes the collection of 70 burns and wound swabs from patients of different hospitals, in Baghdad area, for the period from November 2013 to February 2014. 2) 31 isolates characterized as Pseudomonas aeruginosa 9 (45%) from wound and 22 (78.57%) from burn swabs, depending on the characteristics of the colonies phenotypic and microscopic when grown in differential selective media, as well as biochemical tests todiagnose isolates, Then the identification of these species were confirmed by using the system (GN I Card) using Vitek 2 device complementary step.3) The study includes sensitivity test towards 16 antibiotics for each species by using the system (AST Card) using Vitek 2 device, and the isolates ware Multi drug resistance, As results all isolates were resistant by 100 % for each of Piperacillin, Ticarcillin, Ticarcillinclavoulanic acid, Cefazolin, Ceftriaxone and Tigecycline. All strains were less resistance to Ceftazidime with percentage 50%. 4) All the isolates of Pseudomonas aeruginosa with percentage %100, have ability to produce protease enzyme.5) This study was use tow methods of biofilm formations seen in P. aeruginosa, Micro - titer plate method (MTP) and Tube method (TM), Results revealed that MTP was found to be more sensitiveand specific method for biofilm detection than TM. 6) Well diffusion method revealed the inhibitory effect of bacteria Lactobacillus acidophilus, Lactobacillus rhamnosus GG and its supernatants in the growth of bacteria Staphylococcus aureus and P. aeruginosa, and was the supernatant of L. rhamnosus GG isthe largest inhibitory effect on the growth of S. aureus and P.aeruginosa with inhibition diameter 32 and 34 mm respectively, while the inhibition of growth by supernatant of L. acidophilus diameter 25 and 27 mm respectively. 7) Estimated the amount of protein in each of the biosurfactant and bacteriocine producers of L. rhamnosus GG bacteria concentration of 74, 54 Mg/mL respectively, while their concentration in bacteria L. acidophilus 44, 40 Mg / mL, respectively.8) Found that the bacteriocine product of bacteria L. rhamnosus GG and L. acidophilus GG have inhibitory effect on ability of P. aeruginosa to produce the enzyme protease, and the absence of this effect in the Biosurfactants the product of these two types.9) The biosurfactant product from L. rhamnosus GG showed inhibitory effect greater than the effect of the biosurfactant product from L. acidophilus to inhibition (production of biofilm and adhesion to epithelial cells).10) studied the suspension's effect of L. acidophilus and L. rhamnosus GG in contrived injuries wounds in mice contaminated with P. aeruginosa, Positive results have been shown to be affected by the contaminated bacteria injuries wounds.

عزل وتحديد هوية فيروس الحصبة في علاقته ببعض الجوانب المناعية من الاشخاص النازحين الملقحين في محافظة بابل == Isolation And Identification Of Measles Virus In Relation To Some Immunological Aspects From The Vaccinated Displaced Individuals In Babylon Governorate

Author name: ليث احمد عمران كيف الكيف
Supervisor name: محمد عبد كاظم حسن السعدي | يونس عبد الرضا كحيوش الخفاجي
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت الدراسة لتقييم مناعة المجتمع لكلا النازحين والمقيمين الملقحين بلقاح فيروس الحصبة ضد خمج الحصبة في محافظة بابل. لذا تضمنت هذه الدراسة معايرة الحالة المناعية في امصال النازحين والمقيمين محافظة بابل مع عزل وتشخيص فيروس الحصبة من الحالات المشتبه بها. ت | The study was conducted to evaluate the herd immunity for both the displaced and residents vaccinated with measles virus vaccine against measles infection in Babylon governorate. Therefore this study includes the evaluation of the immune status in sera of Babylon governorate displaced and residents with specific aspect for isolation and identification of measles virus from suspected cases. The immune response was evaluated by means of ELISA test (enzyme linked immunosorbet assay) for titration of IgM and IgG immunoglobulin level, in addition to evaluation of perforin level in the sera of 90 measles vaccinated individuals included in this study (50 displaced and 40 residents) from different areas in Babylon governorate, that were collected during the period extent from January up to April of 2016. Data about individuals were fixed according to information of formula including age, sex, geographical location, place displace of displaced and the vaccination date. Successful virus isolation from suspected cases on two types of cells culture included Vero cells line and chicken embryo fibroblast was carried. The titer of the isolated virus on Vero cell line reached (105.8 TCID50 / 0.1ml),which was higher than the titer of the virus isolated on CEF which reach (105.4 TCID50 / 0.1ml) after the third passage of the virus. The isolated virus was confirmed by indirect immunofluorescence technique.The age of subjects included in this study ranged from <1 year up to 24 years old. The results revealed that 15 (30%) have positive IgM index in sera of displaced, whereas residents sera sample shown only 6 (15%) positivity. Howover, all 90 (100%) subjects of both groups showed positive IgG index. The results of the present study showed that there were no significant difference of perforin level in sera of refugees and residents at p<0.05.Assaying of immune response against measles virus by measuring IgM immunoglobulin in sera of vaccinated displaced and resident with measles vaccine reflected a highly significant difference between two groups which reached 0.43 mIU/ml in sera of displaced in comparison with residents sera which reached 0.34 mIU/ml. The result showed also high significant differences in IgM between females and males. The females sera IgM levels of displaced and residents were higher than its level in males sera which reached 0.47 mIU/ml and 0.35 mIU/ml, respectively, in comparison with male sera level which reached 0.40 mIU/ml and 0.32 mIU/ml, respectively. According to age group, the highest IgM value was recorded in displaced and residents sera in age group 10 - 14years (0.50 mIU/ml) and 5 - 9years (0.36 mIU/ml) respec - tively. Whereas the lowest IgM serum value was detected in age group <1 year (0.34 mIU/ml) and 15 - 19years (0.31 mIU/ml) for displaced and residents subjects. According to geographical location, the highest IgM level was detected in sera of displaced from Tal Afar city (0.44 mIU/ml) followed by displaced from Ramadi (0.41 mIU/ml) and the lowest IgM value was detected in sera of displaced from Mosul city (0.33 mIU/ml). Whereas the highest IgM value in sera of residents in the subjects of Al - Mahaweel city (0.37 mIU/ml) followed by subjects of Hilla and Al - Qasem city (0.29 mIU/ml and 0.28 mIU/ml) respectively. For IgG serum immunoglobulin the results revealed that there was no difference in significant levels in both group population. But according to age groups significant difference between displaced and residents was detected at p <0.05 in which the 1 - 4 years old showed the highest IgG serum level in both group (1.98 mIU/ml and 2.18 mIU/ml) respectively. While the lowest IgG sera value was recorded in displaced age group of < 1 year old (0.60 mIU/ml) compared with residents age group of 20 - 24 years old (1.65 mIU/ml).It could be concluded that the results showed that the displaced do not have any effect on the residents of the province of Babylon for measles as a result of the good immunization by Babil Health directorate following to the Ministry of Health.

التعدد الشكلي للمستقبل الثاني لعامل الورم التنخري والجين المحفز للـ CD4 والانترلوكين 37 في تقييم التهاب المفاصل الرثوي == Tumor Necrosis Factor Receptor II, Cd4 Enhancer Gene Polymorphisms And IL - 37 In Assessment Of Rheumatoid Arthritis

Author name: وسناء جمعة محمد
Supervisor name: محمد شمخي جبر | باسم شهاب احمد
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: التهاب المفاصل الرثوي (Rheumatoid Arthritis) مرض جهازي التهابي مزمن يصيب المفاصل وتحديدا الاغشية الزلالية والتراكيب المفصلية، والذي يحدث للعديد من الناس وبنسبة تقارب 0.5 الى 1% من السكان في العالم. لوحظ خلال الدراسات الوبائية لمرض التهاب المفاصل الرثوي | Rheumatoid arthritis (RA) one of the most common systemic autoimmune diseases characterized by chronic joint inflammation and subsequent joint destruction. To date, it well known that RA is characteristic of the expansion of the synovium and infiltration of the inflammatory cells coupled with destruction of adjacent articular cartilage and bone. This is strongly dependent on CD4 T cell. CD4 Cells stimulate monocytes, macrophages, synovial fibroblasts, and other cells to produce cytokines such as tumor necrosis factor - ? (TNF - ?, interleukin - 1 (IL - 1), IL - 6, IL - 15, IL - 17 and metalloproteinases that produce tissue damage. TNF is a major inflammatory cytokine contributing to the pathogenesis of RA, which provides rational for development of anti - TNF biological agents in the treatment of RA.Recently have shown that IL - 37 is a key cytokine in regulating inflammatory response, mainly by inhibiting the expression, production, and function of proinflammatory cytokines. Objectives This study planned to evaluate the association of TNFRII and CD4 enhancer genes polymorphisms in development and severity of RA in Iraqi patients, evaluate IL - 37 in patients with RA and investigate the correlation between IL - 37 levels with disease activity and relation of inflammatory parameters (ESR, CRP, ACPA, and RF) with TNFRII, CD4 enhancer genes polymorphisms.Patients and methods This study was performed during the period from May to September 2015. The patients were attending the out patients' Clinic in Medical City/Baghdad Teaching hospital/rheumatology unit and the laboratory ELISA tests were done in nursing home hospital laboratory, polymerase chain reaction (RFLP) analysis was performed in the specialist private molecular laboratory (ASCO Lab) in Al - Harthia / Baghdad. Fifty patients and 50 apparently healthy control individuals, Patients received disease modifying anti rheumatic drugs (DMARDs) and newly diagnosed patients.The diagnosis of RA patients has performed under the supervision of rheumatic disease consultant physician at the consultation clinic of Baghdad teaching hospital of the medical city. Blood samples had taken from RA patients to measure (ESR), white blood cells count and hemoglobin. Also, analyze the serum levels of ACPA, RF screen CRP and estimate the levels of IL - 37 in patients and healthy individuals using ELISA test kits. TNFRII and CD4 enhancer genes polymorphisms genotyping had achieved by polymerase chain reaction restriction fragment length (PCR - RFLP).Results The results showed the estimation of RF by screening test revealed that its mean level was high among RA patients (168.87+31.62) in comparison with apparently healthy control (4.96+0.71) with highly significant difference (p<0.01). There was a higher positivity of Anti CCP in the patients sera (114.85+21.06) in comparison with apparently healthy control (1.71+0.13) (P<0.01). while the estimation of CRP showed that its level was higher among sera of RA patients (38.39+4.31) in comparison with healthy control group (16.49+2.51) (P<0.01). Furthermore, the ESR level in RA patients were higher than apparently healthy individuals (52.96+3.68) and (10.44+0.74) respectively with significance (P<0.01).The frequencies of the MM, MR, RR genotypes of TNFRII gene polymorphisms were 60%, 32%, 8% in RA patients and 52%, 42%, 6% in controls. There were no significant differences in the genotypes frequencies polymorphisms of the TNFRII 196 MR polymorphism between apparently healthy control and RA. The frequencies of AA, AG, GG genotypes of CD4 10845 A/G in patients was 36%, 42%, 22% and 8%, 44%, 48% in control group. There were significant differences in the genotypes frequencies polymorphisms of the CD4 10845A/G polymorphisms between apparently healthy control and RA patients (p<0.01). AA genotype were significantly more likely to develop RA (OR=1.355). There was significant increase in disease activity and severity in patients carries AA genotype (p<0.01).IL - 37 levels were elevated markedly in RA patients (101.31+10.41) compared with apparently healthy control (43.90+0.91) (p<0.01). More importantly, IL - 37 showed a significant correlation with disease activity (CRP) in RA patients (p<0.05). Also, IL - 37 show non - significant relationship with (MM, MR, RR) exon6 TNFRII in RA patients compared with controls, and non - significant difference between level of IL - 37 with CD4 10845 A/G genotypes compared with healthy control.Conclusion All findings suggested that TNFRII - 196R genotypes not associated with RA diagnosis. In addition, genetic polymorphisms at the CD4 enhancer gene are one of important factors that associated with susceptibility and severity of RA and can serve as a genetic marker for the risk of development of RA.

دورا محتملا لفيروس ابشتاين بار في عملية تسرطن الغدة الدرقية الحليمية == A Possible Role Of Epstein - Barrvirus In Carcinogenesis Of Papillary Thyroid Carcinoma

Author name: هند علي خميس
Supervisor name: عامر رشيد النجار | سعد حسن محمد علي
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: This study was designed as a retrospective research. A total number of (90) formalin - fixed, paraffin embedded tissues were studied. Malignant and normal thyroid tumors tissue blocks were collected from the archives of histopathology laboratories of different general hospital including ALYarmouk Teaching Hospital (Baghdad), Baghdad Medical City Teaching Hospital as well as many private laboratories in Baghdad, during the period from May 2013 to May 2014. These cases include ? Thirty tissue specimens from patients with papillary thyroid cancer. ? Thirty tissue specimens with benign thyroid lesions as control thyroid tissues group. ? Thirty (30) thyroid specimens were obtained from the normal thyroid tissues from the same those totally - thyroidectimized patients for thyroid papillary cancer (PTC) and have served as the second control group for this study. This study was therefore a paired case - control design. The sections were stained by hemotaxyline and eosin staining so as to confirm the diagnosis and assure that the intervening sections ( that were specified for the in situ hybridization and Immunohistochemistry study have containing the questioned tissues from papillary thyroid cancers and benign thyroid tissues (control group).After histopathological sectioning of these thyroid gland tumors and staining by Hematoxylin and Eosin, a final definitive diagnosis was done by histopathologist consultant. The practical part of this study was designed in four pathways : 1. Molecular detection of Epstein - Barr virus in those tissue blocks were performed by using ultra - sensitive version of in situ hybridization (ISH) for detection of EBV - EBERs. 2. To perform immunohistochemical study to demonstrate EBV - latent gene (LMP1, EBNA - 2) in the papillary thyroid cancer compared to control group. 3. To perform immunohistochemical screening study to demonstrate the over expression state of p53 - tumor suppressor gene in those tissues with papillary thyroid cancer compared to control group. 4. To perform immunohistochemical screening study to detected the CD8 and CD56 in tissues with papillary thyroid cancers compared to control group. The obtained results are summarized as follows : 1. The mean age of patients with papillary thyroid cancer and simple nodular goiter was (39.87&41.13) years respectively, with standard deviation ±(11.773,9.243) years. 2. In this study, the percentage of the females with papillary thyroid cancer was higher (86.7%; 26 cases) than the percentage of their PTC - male counter parts (13.3%; 4 cases). The patients whom sub totally thyroidectimized for simple noduler goiters , the percentage of females was also higher (73.3%; 22 cases) than the percentage of their male counter parts with simple noduler goiters ( 26.7%; 8cases). Female / male ratios of the patients with PTC and simple noduler goiters were 6.5 and 2.75 respectively. 3. The percentage of EBV results in the total group of PTC was (50%) while the percentage in the total group of normal thyroid tissue was (26.7%) and lastly in the total simple nodular goiter group was (10.0%). 4. The positivity rate of EBV EBERs - ISH technique in the total group of PTC was (30%), where as its percentage in NTT tissues was (16.7%) and in SNG tissues was (3.3%). 5. The percentage of positive - EBNA - 2 IHC technique in the total group of PTC was (20%), where as its percentage in NTT tissues was (10.0%) and in SNG tissues was (6.7%). 6. The percentage of positive - EBV - LMP - 1 - IHC technique in the total group of PTC was (43.3%), where as its percentage in NTT tissues was (20.0%) and in SNG tissues was (6.7%). 7. Mutated P53 - protein was detected in 28 cases (70%) of the studied cases. Twelve cases (30.0 %) showed negative IHC reactions. 8. The highest total percentage of CD8 - IHC reactions (21 cases; 70%) was found in those with papillary thyroid cancer followed by normal thyroid tissues cases ( 5 cases; 16.7%) and then ( 2 cases : 6.7%) in simple nodular goiter. 9. It was found that the highest percentage of CD56 - IHC reactions was in those with normal thyroid tissues (25 cases; 83.3%) followed by an equal percentages of CD56 - IHC reactions in either thyroid papillary or simple nodular goiter (2 positive cases; 6.7%, each). 10. The importance of CD56 marker has been found to play a role or it may be better to be used as a negative - diagnostic biomarker for papillary thyroid cancer in differentiating it from other malignancies as well as benign lesions of the thyroid gland, individually as well as in combination with other markers for clinical evaluation of those patients. 11. The evident high mutated p53 - over expression, as reflected by abnormal gene product, among papillary thyroid cancer patients indicates for a pivotal role of such genetic mutation in their carcinogenesis as well as could be useful in the clinical evaluation of patients with papillary thyroid cancer, too. 12. The high coexistence of p53 - mutation with EBV in PTC could point for participation of EBV - transformation genes in the p53 activation in high proportion of PTC. 13.The high percentage of CD8 lymphocytes in EBV - positive PTC as compared to their EBV - negative counterparts could reflect the participation of specific cellular immunity against both, the papillary thyroid cancers and this EBV infection during the initiation and progression of EBV - associated papillary thyroid cancers.

تشخيص مصلي وجزيئي لفيروس الحلا البشري النوع السادس المصاحب لبعض سرطانات الدم == Serological And Molecular Detection Of Human Herpesvirus Type 6 Associated With Certain Hematologic Malignancies

Author name: هديل محمد فياض
Supervisor name: علاء فاضل علوان | داود سلمان داود
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: Human herpesvirus 6 (HHV - 6) is largely ubiquitous double stranded DNA viruses within the betaherpesvirinae subfamily and of the genus Roseolovirus.HHV - 6A and HHV - 6B infects very high percentage of population around the world, primarily during childhood through respiratory droplets. HHV - 6 has been found out in many types of cancers : lymphomas, leukemia, cervical cancer, and brain tumors.This cross - sectional case control study was carried out in Baghdad Teaching Hospital and National Center of Hematology - AL - Mustansiriyah University - Baghdad, for the period from 1 September 2013 to 1 April 2015.The aims of the study were to explore the seropositivity rate of HHV - 6 antibodies among Iraqi patients with different hematological malignancies using different laboratory assays, beside, the molecular determination of plasma viral DNA load by quantitative polymerase chain reaction (qPCR).The study included 109 patients with different hematological malignancies; 24 patients with acute lymphoblastic leukemia (ALL), 30 patients with acute myeloid leukemia (AML), 11 patients with Hodgkin lymphoma (HL), 39 patients with non hodgkin lymphoma (NHL) and 5 patients with chronic lymphocytic leukemia(CLL). All patients were newly diagnosed and enrolled before receiving chemotherapy. The age range was between 14 - 80 years. Fifty three (48.6%) and 56 (51.4%) patients were males and females, respectively. The diagnosis of their malignancies was based on either bone marrow aspirate biopsy and lymph node biopsy as well as cytochemical investigations. Additionally, 59 apparently healthy blood donors were enrolled as control group. The age range was between 18 - 59 years, twenty eight (47.4%) and 31 (52.6%) were males and females, respectively.The serum anti - HHV - 6 IgG was detected by indirect immunofluorescent technique (IFAT) as well as by enzyme linked immunosorbant assay (ELISA).While, the serum anti - HHV - 6 IgM was detected by ELISA only. The detection and quantification of plasma viral DNAemia was carried out by quantitative polymerase chain reaction. Serological as well as molecular assays were done in Central Public Health Laboratory in Baghdad. The highest IFAT positivity rate was among patients with CLL (100%), followed by patients with AML (83.3%), and the least positivity rate was among patients with NHL (64.1%) compared to that of healthy control. Generally, the total anti - HHV - 6 IgG by IFAT was insignificantly higher among patients compared to healthy controls (74.3% vs 61.0%, p=0.074). The anti - HHV - 6 IgG positivity rates by ELISA were insignificantly higher in all groups of haematological malignancies except in patients with AML in whom it was significantly higher compared to healthy controls (96.7% vs 72.9%, p= 0.007 ). A part from AML, the highest anti - HHV - 6 IgG by ELISA was among patients with ALL (87.5%) followed by patients with NHL (84.6%), and the least was among patients with CLL (80.0%) compared to healthy control. Generally, the total anti - HHV - 6 IgG positivity rate detected by ELISA was significantly higher compared to IFAT in patients (p= 0.013) as well as in healthy control (p= 0.0005).The results of anti - HHV - 6 IgM positivity rate as detected by ELISA was significantly higher in patients with AML (36.7%, p=0.0004), and patients with HL (27.7%, p= 0.038) compared to healthy controls (6.8%). Whereas, other groups of hematological malignancies showed insignificantly higher positivity rate versus control group. However, the highest positivity rate was among patients with AML (36.7%), and the least positivity rate was among patients with CLL (0%). Generally, the total ELISA anti - HHV - 6 IgM positivity rate was significantly higher in patients versus healthy controls (22.0% vs 6.8%, p= 0.011). The results of PCR showed that 5 out of 109 patients had detectable HHV - 6 DNA in the plasma. The highest detection rate was among patients with HL (27.3%), followed by patients with ALL (4.2%), and then patients with AML (3.3%), while the virus was not detected in other disease categories as well as in healthy controls. The plasma viral load (mean ± SD) among the three Hodgkin lymphoma patients was 1.4± 0.3*102 particle/milliliter.The study concluded that the seropositivity rate of HHV - 6 infection is highly prevalent among Iraqi patients with hematological malignancies compared to healthy population. However, primary or reactivation infection as determined by anti - HHV - 6 IgM in patients as well as healthy individuals is relatively low. Furthermore, the HHV - 6 DNA detection rate as well as plasma viral load among malignant patients before receiving immunosuppressive treatment were low.

دراسة Toll like receptors(TLR2& ( 4 ومؤشرات حيوية مختارة في المرضى المصابين بسرطان المثانة == Study Of Toll Like Receptors (TLR - 2 And 4) And Selected Biomarkers In Bladder Cancer Patients

Author name: هدى سعدون البياتي
Supervisor name: ميسون علي سليم | ناهي يوسف ياسين | عصام سلمان العزاوي
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: Worldwide, cancers of the urinary bladder are complex and involve genetic abnormalities and may be due to different environmental chemical carcinogens, as well as chronic infection like Schistosomiasis, all these will allow normal transitional cells to become cancerous which are typically transitional cell carcinoma(TCC).This study was conducted at AL - Yarmouk and Baghdad Teaching Hospitals in Baghdad from June 2013 to April 2014, of which urine and bladder tissue were taken from 57 bladder cancer patients and 80 controls to assess Interleukin - 8 (IL - 8), Matrix MetalloPeptidase - 9 (MMP - 9), Bladder Cancer - Associated Protein (BLCA - 4),Toll - Like Receptors (TLR - 2and TL - R4) level among them and to evaluate their roles in cancer development.One hundred thirty seven Iraqi individual were divided to 28(20.43%) newly diagnosed and 29(21.16%) recurrent bladder cancer patients (relapse), 40(29.19%) apparently healthy volunteers and 40(29.19%) autopsies (apparently normal urothelium), of whom urinesample and tissue biopsy were collected, clinical diagnosis of patients carried out by cystoscopic and histopathological examination, the mean ±SD age of bladder cancer patients were (63± 9.3) with (M : F ratio7.1 : 1).Predominant cancer type was Transitional cell carcinoma (TCC). According to risk factors of bladder cancer, out of 57 bladder cancer patients, 34(59.64%), 29(50.87%), 9(15.78%), 7(12.28%), 6(10.52%) were smoker, had UTI, history of Schistosomiasis, family history ofcancer and stones respectively. In this study 30 patients had non - muscle invasive bladder cancer, most of them (21) had newly diagnosed tumors, and only 9 had recurrent disease, as well as, 27 patients with muscle - invasive bladder tumor, just 7 had newly diagnosed tumors and 20 with recurrent disease.According to the result of ELISA technique, the mean±SD urine level IL - 8(pg/ml) for recurrent bladder cancer patients was 359.6±170.1pg/ml, for newly diagnosed was 265.95±139.09pg/ml and for healthy volunteers was 62.04±37.66pg/ml. The mean ±SD concentration of urine MMP - 9(pg/ml) was 7368.3±1730.19pg/ml for recurrent, 6176.8±2366.9 pg/ml for newly diagnosed and 1131.53±1554.80 pg/ml for healthy volunteers. Mean±SD Level of urine BLCA - 4 (ng/ml) for recurrent was 1.45± 0.26 ng/ml, for newly diagnosed was 1.30± 0.22 ng/ml and for healthy volunteers was 1.02±0.067 ng/ml. Urine level of these markers was significantly higher in recurrence group when compared with newly diagnosed and these levels decreased in normal volunteers which was statistically significance (P<0.001 for IL - 8, MMP - 9and BLCA - 4),also there was a significant increase in urine IL - 8 level according to grade(P=0.0002) and muscle invasion(P= 0.0009) as well as BLCA - 4 showed this significant increase in high grade(P=0.0001), and muscle invasion(P=0.0001),but no significant difference was found in the level of urine MMP - 9 with grade(P=0.23) and muscle invasion(P =0.069)In comparison, IL - 8 and MMP - 9 IHC staining of bladder tissue, showed low expression in cancerous tissue with no significant difference between cancer and normal urothelium(P=0.140 for IL - 8, P=0.265 for MMP - 9 ), and unrelated to grade, muscle invasion and recurrence.Significant increase in TLR - 2 and TLR - 4 expression in bladder cancer tissue than in normal urothelium (P=0.0001 for each), and according to grade and muscle invasion, TLR - 2 showed significant over expression in high grade than low grade (40.7%vs36.6%) with P=0.018, muscle invasion than non - muscle invasion (44.4%vs33.3%) with P value of 0.02, while TLR - 4 was none significantly correlated with grade andmuscle invasion. As well as, there was no correlation between these receptors with tumor recurrence.In regard to risk factors, Smoking, schistosomiasis and family history showed correlation with study marker in different manner as, IL - 8 was significantly highly expressed in smoking associated bladder cancer group, as well as patients with family history of bladder cancer showed high expression IL - 8, for Schistosoma associated TCC patients and UTI they demonstrated a statistically significant high expression of TLR - 2 p= (0.0001).From this study we conclude that urine IL - 8, MMP - 9and BLCA - 4 measured by ELISA showed specificity in diagnosis of bladder cancer, besides that, urine IL - 8, MMP - 9 and BLCA - 4 have a role in discrimination between newly diagnosed vs recurrent, with a significant association between urine IL - 8 with BLCA - 4 (P= 0.0001) and IL - 8 with MMP - 9 (P= 0.005) in patients with recurrent bladder cancer. Urine IL - 8 and BLCA - 4 concentration were statistically with significant increase in high grade than low grade and muscle invasion than non - muscle invasion, On the other hand, bladder cancer cells over express TLR - 2 and TLR - 4,while TLR - 2 showed correlation with high grade and muscle invasion,TLR4 did not show such correlation. Lastly, IL - 8 and MMP - 9 staining showed low expression in tumor tissue of different grades, stages and groups.

دراسة بكتريولوجية على التفاقم الحاد لمرضى الانسداد الرئوي المزمن == Bacteriological Study On Acute Exacerbation Of Chronic Obstructive Pulmonary Disease (COPD) Patients

Author name: هبة اسماعيل علي العزي
Supervisor name: عروبة خالد عباس | عبد الحميد القصير
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: لا يزال مرض الانسداد الرئوي المزمن مشكلة رئيسية في مجال الصحة العامة. ويرتبط التفاقم الحاد مع فقدان سريع في وظيفة الرئة وخلل في نوعية الحياة وهي من الاسباب الرئيسية للامراضية والوفيات في مرضى الانسداد الرئوي المزمن. تعتبر العدوى البكتيريا هي من الاسباب | Chronic obstructive pulmonary disease remains a main problem in public health. The acute exacerbations are related with rapid loss in lung function and defect in the quality of life and are the main causes of morbidity and mortality in COPD. This study was carried out to isolate and identify the bacteria that cause acute exacerbation in chronic obstructive pulmonary disease and sensitivity of isolated bacteria for most of the antibiotics currently in use.Eighty sputum specimens from patients were included in this study and their age was range forty and above , during the period from January 2015 to June 2015 from three places Al - Yarmouk Teaching Hospital, Medical City Hospital and Medical Al khademeain Emamaain City.Bacteria were identified in 52 (65%) while the patient is not specified any reasoned in 28 patients (35%) patients. The diagnosis of bacteria through culture and microscopic examinations and biochemical tests necessary for diagnosis and then the diagnosis has been confirmed of isolation by the Vitek method for each bacterium, the percentages were as follows : Streptococcus pneumoniae was the most frequently isolated bacteria, which recovered from 21 (26.25%) patients. Followed by Klebsiella pneumoniae, Escherichia coli, Pseudomonas spp., which isolated from (7.5%, 7.5%, and 5%) of patients respectively, while (3.75%) for each of Acinetobacter baumannii & Staphylococcus aureus. The proportion of Stenotrophomonas maltophilia was (2.5%) while the proportion (1.25%) for each of Enterobacter cloacae, Leclercia adecarboxylata, Moraxella catarrhalis & Raoultella ornithinolytica.Through the search three cases were infected with Mycobacterium tuberculosis diagnosed by direct Acid Fast Stain test and their percentage was (3.75%).Sensitivity of bacterial isolates to antibiotics Carbapenems and Doxycycline and Chloramphenicol were the most effective against tested bacteria in vitro while Erythromycin, Tetracycline, and Amoxicillin were the least sensitive

دراسة جزيئية ومناعية لدى عينة من مرضى التدرن الرئوي == Molecular And Immunological Study In A Sample Of Pulmonary Tuberculosis Patients

Author name: مي يحيى عبد الحسين
Supervisor name: عروبة خالد عباس | احمد اسمر منخي
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: يعتبر مرض السل الرئوي tuberculosis الذي تسببه بكترياMycobacterium tuberculosis من الامراض المعدية والشائعة واحد الاسباب الرئيسية لحالات الوفاة في العالم, ولاهميته اجريت هذه الدراسة لتسليط الضوء اكثر حول التشخيص المناعي للمرض وعلاقته بالتشخيص الجزيئي.تضم | Tuberculosis (TB) is caused by Mycobacterium tuberculosis; which consider as one of the most common, infectious diseases and major causes of morbidity and mortality worldwide. A prospective study was conducted to diagnose disease by immunological methods and its association with molecular diagnosis.The study included immunological diagnosis by Quantiferon - TB Gold In Tube Test, estimation the serum levels of IFN - ?, TNF - ? and IL - 10 in TB patients and control by a sandwich ELISA test using commercially available kits, in addition to molecular diagnosis by using Gene Xpert MTB/RIF assay, conventional bacteriological tests such as smear microscopy by Ziehl - Neelsen stain for sputum samples. Furthermore, estimation of ESR and WBCs.Fifty TB patients attending the National Reference Laboratory of Tuberculosis /Baghdad from the period between April to July 2014 were recruited in this study. For the purpose of comparison, 50 control samples (respiratory disease and healthy) matched by age and gender were also included.All TB patients' samples were positive by smear microscopy. The results revealed that there were significance differences between AFB scoring and G - Xpert results (p Forty five samples of TB patients with significance difference (p?0.01) were positively detected by Quantiferon - TB Gold Test.The mean serum level of QFT among TB patient and control (3.54 IU/ml vs. 0.866 IU/ml and 0.556 IU/ml), IL - 10 (53.02 Pg/ml vs. 22.24 pg/ml and 7.51 pg/ml) and TNF - ? (74.34 Pg/ml vs. 49.12 Pg/ml and 27.81 pg/ ml) were significantly higher in TB patients as compared to controls (P?0.05).In conclusion, high levels of IFN - ?, TNF - ? and IL - 10 in TB patients serum indicate an important role of theses cytokines in the pathogenesis of tuberculosis, so they could be considered as a good biomarkers for diagnosis and considered as a target for future therapy. The present study revealed significant difference in the WBCs and ESR values between TB patients and control (P?0.05)

دور الايبشتاين بار فايرس كعامل محتمل لتقدم سرطان الدم اللمفاوي المزمن == Molecular Characterization Of Metallo ? - Lactamase (MBL) Genes

Author name: لمى عامر ياسر
Supervisor name: عامر رشيد النجار | داود سلمان داود
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: Epstein Barr virus (EBV) is ubiquitous virus which infects the majority of the human population and is the causative agent of infectious monocleosis and a variety of B - cell tumors including Hodgkin lymphoma, Burkitt lymphoma, human immunodeficiency virus - associated lymphomas and post - transplant lymphoproliferative disorders , this virus expressed many protein and it is associated with a variety of B - cell tumors. Recently many studies have suggested a causal relationship between EBV and chronic lymphocytic leukemia (CLL). A prospective study of thirty samples of formalin - fixed, paraffin - embedded tissue of bone marrow aspirates samples and blood from newly diagnosis BCLL of 30 patients and our control included : 1) 20 bone marrow of patients who they have hematological disease other than leukemia as control. 2) Blood serum from healthy controls to study the level of IL - 10 and IL - 8. The present study conducted at Baghdad Teaching hospitals and the National Center of Hematology from September 2013 to Jun 2014. In this study we investigated the association between EBV and CLL. The detection of EBV encoded RNAs (EBER1,EBER2) by in situ hybridization and also latent membrane protein - 1 (LMP - 1) and EBV nuclear antigen - 2(EBNA2) by immunohistochemistry and detection for the level of Interleukin n (8 and 10) in the serum of CLL patients by ELISA. In situ hybridization study revealed that all the controls were negative for EBERs and 46.7% patients were found to be EBERs positive. There was a correlation between positive EBERs and tumors stage and also EBERs and IL10 and with LMP - 1 and EBNA - 2. Immuno - histochemical method was used to demonstrate the rate of (LMP - 1 and EBNA - 2) in CLL patients where a positive results of EBNA2 and LMP1were found in (43.3 % and 56.6s %), respectively in CLL patient group. All controls were negative with an exception of two patients were LMP1 positive. Enzyme linked immunosorbent assay test (ELISA) was used to detect the level of IL - 8 and IL - 10 in serum of newly diagnosed of CLL patients. Interleukin 8 was significantly higher in CLL cases group (33.1 pg/ml) compared to control group.On the other hand It was found that high increase in IL - 10 level ,in CLL patients when compared with controls. Conclusion : It can be concluded that there is a significant relationship between EBV and Chronic lymphocytic leukemia, mainly EBERs, also the association of significant increase in IL - 10 and IL - 8 with CLL.

مؤشرات جزيئية حول مقاومة الزوائف الزنجارية المرتبطة بخمج المجاري البولية للمضادات الحيوية == Molecular Markers Of Antibiotics Resistance Of Pseudomonas Aeruginosa Associated With Urinary Tract Infections

Author name: كريم عليوي حمادي سليمان
Supervisor name: عامر رشيد النجار
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: الزوائف الزنجارية : وهي بكتريا سالبة لصيغة الكرام والمنتشرة بشكل واسع في البيئة مثل التربة والمياه. وهذه البكتريا تتسبب في كثير من الالتهابات مثل التهاب المجاري البولية والتهاب الحروق وهي بكتريا انتهازية. وتشكل تهديد لحياة المصابين بالمجاري البولية وخاص | Pseudomonas aeruginosa is a Gram |( - ve) bacteria, widely presents in the environment such as soil, water, its incubation period (1 - 3) days, generation time 1 - 2 hrs. This bacteria causes many infections such as (UTI), and burn infections. It is an opportunistic pathogen, life threating for immune compromised patients such as diabetic patients. Pseudomonas aeruginosa is a nosocomial pathogen, and it is ranking the second among Gram ( - ve) hospitals acquiring pathogen. Its antibiotic resistance increased due to acquiring many antibiotics resistance genes. The spread of these genes among bacteria is via plasmids. Plasmid profiling of Ps. aeruginosa isolates by gel electrophoresis is a best technique for detection of plasmid content. Through this study, which was carried out in two main teaching hospitals, the diabetic center and private labs in Baghdad, during the period from January to October 2014. A total of (620) urine specimens were collected during (9) months. Urine specimens from inpatients were (420 / 620, 67.75%) and from out patients were (200 / 620, 32.25%). Urine specimens from Dialysis unit were (280 / 620, 45.1%) and from burn units were (140 / 620, 22.5%). The male represented (n = 334, 52.38%) while female were (n = 286, 46.20%). The positive cultures of urine samples obtained from hospitalized patients were (72 / 420, 17.1%) while for urine samples obtained from out patients (n = 40 / 200, 20%) were positive culture. A total of (112) positive culture out of (620) collected with (18.06%) percentage. A total of (30) bacterial isolates were tested by using disc diffusion method for susceptibility test forward to (15) antibiotics. Ps. aeruginosa isolates showed highest resistance to gentamicin (87.5%) while the lowest resistant toward meropenem, and imipenem with resistance percentage (16.7% and 8.0%) respectively.The occurrence of multi - drug resistance in (30) selected isolates were grouped as follows to (MDR) for those isolates which showed resistance to at least (3) antibiotics which was found to be (5 / 30, 6.6%). While (XDR) referred to those isolates which showed resistance to (4 - 5) antibiotics with (19 / 30, 63.3%). In related to (PDR) which referred to isolates that showed resistance to more than 5 with (6 / 30, 20%). The extracted plasmid DNA were resolved by gel electrophoresis for detection of plasmid content for (20) isolates including (10) isolates from inpatients, and (10) isolates from out patients. The selection of these isolates were grouped according to their antibiotic resistance pattern and the number of plasmids that they carried. The results showed that out of (20) there were (12 / 20, 60%) had no plasmid. While the remaining (8 / 20, 40%) had plasmids with different sizes and numbers. By using PCR technique the most common kinds of genes such as bla CTX - M, bla OXA, which encoded extended spectrum ? - lactamase (ESBLS) and those for metallo ? - lactamase such as bla IMP, were investigated with specific primers. Five isolates were selected depending on the numbers of plasmids which they carried and their resistance to antibiotics.

دراسة مؤشرات مناعية وبايوكيميائية مختارة لمرضى السكري النوع الثاني المصحوب وغير المصحوب باعتلال الكلى ذات الادرار قليل الزلال == Study Of Selected Immunological And Biochemical Markers In Type 2 Diabetes With And Without Microalbuminuric Nephropathy

Author name: علي ناصر محمد علي
Supervisor name: عبد العظيم ياسين عبود البراك | حازم عبد الرزاق عبد الوهاب
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: Diabetic Nephropathy (DN) is a common complication of diabetic diseases occuring all over the world including Iraq. This type of microvascular complication of diabetes mellitus represents the most common reason of end stage renal disease (ESRD) in the world which considers the main reason for hemodialysis, kidney transplantation and death in developed countries. For this reason the assessment of some biomarkers as an early predicator before onset of microalbuminuria stage of diabetic nephropathy and the correlations between these biomarkers with microalbuminuria were carried out.This study was achieved at AL - Yarmouk Teaching Hospital and the Diabetes National Center /AL - Mustansiriyah University/Baghdad from January 2013 to September 2014. The study involved ninety individuals, twenty volunteers selected from the local community; apparently healthy (group I), 40 type 2 diabetics with normal urinary albumin to creatinine ratio (UACR) (<30 mg/g) (group II), and 30 type 2 diabetic patients with abnormal UACR (? 30 - 300 mg/g) (group III). Mean of diabetes duration (D.D.) in group II is about 4 years and in group III is about 8 years. The mean age for group I, II and III were 53, 55 and 58 years respectively. The concentration was measured of each microalbuminuria by turbidmeteric method, estimated glomerular filtration rate (eGFR) by using chronic kidney diseases - epidemiology equation, glycated heamoglobin (HbA1c) by using high performance liquid chromatography (HPLC), both fasting blood sugar (FBS) and creatinine (serum and urine) by using colorimeteric method, body weight by using body mass index (BMI) and all of IL - 18, IL - 12 IL - 4, IFN - ? and urinary vitamin binding protein (VDBP) by using ELISA method in three groups.The present study showed that there is inverse correlation between UACR and eGFR. The cause of this inverse correlation is that the decline in renal function of diabetics can be predicted accurately by using both UACR to show the increase in microalbuminuria while eGFR show a measure of the decrease in the ability of kidney for filtration.The difference of FBS mean between group I and II and group I and III was significant (P= 0.000 for both). The P - value between II and III groups was significant (P= 0.024). The difference of HbA1c mean between group I and II, group I and III and group II and III was significant (P=0. 000 for all). These results were expected as high HbA1c level is in consequence of high FBS. The difference of BMI mean between group I and II, group I and III and group II and III was not significant (P= 0.870, 0.885 and 0.968 respectively). Because the BMI levels were approximately constant in three groups. The difference of D.D. between group II and III was significant (P= 0.000).There was no significant correlation in group II between urinary albumin to creatinine ratio with each of diabetic duration, glycated haemoglobin, fasting blood sugar and body mass index (r=0.219 with P=0.244, r=0.039 with P=0.840, r=0.080 with P=0.673 and r= - 0.126 with P= 0.506 respectively); but there was positively significant correlation between urinary albumin to creatinine ratio with each diabetic duration, HbA1c and fasting blood sugar in group III (r=0.298 with P=0.043, r=0.869 with P=0.000 and r=0.518 with P=0.003 respectively) which may be due to the chronic nature of the disease in this group that require these risk factors to initiation; however, the correlation was non significant between UACR and BMI (r= - 0.127 with P=0.228) in group III.The difference of S.Cr. among I and II groups, I and III groups and II and III groups were not significant (P= 0.998, P= 0.331 and P= 0.145 respectively).The correlation was not significant in group II between serum creatinine with each of diabetic duration, glycated haemoglobin, fasting blood sugar and body mass index (r= - 0.140 with P=0.462, r= - 0.124 with P=0.515, r=0.168 with P=0.374 and r=0.007 with P= 0.969 respectively). Also, there was no significant correlation in group III between S. Cr. with each D.D., HbA1c, FBS and BMI (r=0.187 with P=0.077, r=0.109 with P=0.220 and r=0.175 with P=0.124 respectively). The reason of these results backs to that S. Cr. level is not increased as the podocytes remain intact in the diabetics with and without microalbuminuria.The difference of eGFR between group I and II was not significant (P= 0.303). The difference between group I and III and group II and III was significant (P= 0.001 and 0.010 respectively). The correlation was not significant in group II between eGFR with each of diabetic duration, glycated haemoglobin, fasting blood sugar and body mass index (r=0.121 with P=0.524, r= - 0.180 with P=0.341, r= - 0.310 with P=0.096 and r=0.021 with P= 0.911 respectively). Also, there was no a significant correlation in group III between eGFR with each diabetic duration, HbA1c, FBS and BMI (r= - 0.179 with P=0.07, r= - 0.188 with P=0.061, r= - 0.123 with P=0.388 and r= - 0.112 with P=0.557 respectively). The reason of these results back to that eGFR level is at the normal range in group II and slightly beneath the normal range in group III in consequence of the podocytes remain intact in the diabetics with and without microalbuminuria.The difference of urinary VDBP level between group I and II, group I and III and group II and III was significant (P= 0.000 for all). The correlation between urinary albumin to creatinine ratio levels and VDBP level (r=0.963) with P - value 0.000 which was positively significant in group III. The correlationbetween eGFR and VDBP was - 0.524 with P - value 0.003 which is inversely significant in group III. The reason of this inverse correlation may be similar to the reason of inverse correlation between eGFR and UACR, as the cubilin - megalin receptors are common receptors for albumin and vitamin D binding protein. Otherwise, the correlation between urinary VDBP and eGFR in the group I was a weak negative with non significant P - value (r= - 0.188, P=0. 428). The reason of this non significant correlation is that the cubilin - megalin receptors are not damaged by inflammatory process to elevate VDBP in urine; also the podocytes in glomeruli are intact from the damage by inflammatory process, so the eGFR was at the normal range in the control group.The correlation was a positive between HbA1c and VDBP levels in group II and group III (r=0.579, P=0. 001 and r=0.686, P=0.000 respectively). This positive correlation was explained on the basis that deterioration of sugar level control lead to increase the proinflammatory cytokines that damage cubilin - megalin receptors then VDBP increase in urine.The difference of serum IL - 18 level between group I and II, group I and III and group II and III was significant (P=0.000 for all).The correlation between urinary albumin to creatinine ratio and IL - 18 was 0.983 with P - value 0.000 which was positively significant in group III. This may back to damage the cubilin - megalin receptors by IL - 18 action that lead to increase of UACR in urine. In other words, the correlation between serum creatinine and serum IL - 18 in group III was not significant (r=0.041 with P= 0.830). This may back to that podocytes remain intact in this early stage of diabetic nephropathy. There is a significant positive correlation between serum IL - 18 levels and HbA1c levels in group II and group III (r=0.641, P=0.000 and r=0.721, P=0.000 respectively). These two positive correlations support the suggestion of choosing serum IL - 18 as an excellent biomarker for avoidance an early stage of the disease.The difference of IFN - ? levels between group I and group II, between group I and group III and between group II and group III were not significant as follows : (P=0.640, P=0.292 and P=0.522 respectively). The correlation between UACR and IFN - ? (r=0.047) with P - value 0.830 which was not significant in group III which means that IFN - ? is not a good biomarker for prediction of the microalbuminuria as an early stage of DN.The difference of IL - 12 level between group I and group II, between group I and group III and between group II and group III were not significant (0.884, 0.431 and 0.439) respectively. The correlation between UACR and IL - 12 (r=0.190) with P - value 0.314 which was not significant in group III.The difference of IL - 4 levels between group I and group II, between group I and group III and between group II and group III were not significant (0.943, 0.704 and 0.648 respectively). The correlation between UACR and IL - 4 (r=0.169) with P - value 0.371 which was not significant in group III.These results of IFN - ?, IL - 12 and IL - 4 might lead to conclude that both cytokines can’t be selected as a biomarker for an early detection of DN. Finally from the all presented data it can be concluded that IL - 18 and VDBP are considered more sensitive and more efficient than a classic diagnostic method (UACR and eGFR) for avoidance and detection the early stage of DN.

مميزات التحويرات المناعية للريسفراترول المستخلص من قشور العنب الاحمر على التهاب الكبد المحدث باستخدام ديكالاكتوزامين والذيفان المعوي نوع ب للمكورات العنقودية == Immunmodulatory Properties Of Resveratrol Extracted From Skin Of Red Grape On Acute Liver Injury Induced By D - Galactoseamine And Staphylococcus Enterotoxin B

Author name: صباح زيارة كاظم المالكي
Supervisor name: عبد العظيم ياسين عبود البراك | متزي نكاركاتي
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: تعتبر اصابة الكبد الحاد احد الامراض ذو الاعراض السريرية التي تتصف بارتشاح الخلايا اللمفية الى الكبد وتجمع السوائل وارتفاع انزايمات الكبد مثل ناقل امين الاسبارتات Aspartate aminotransferase(AST) في مصل الدم. هنالك الكثير من الاسباب التي تؤدي الى حدوث ضرر | Acute Liver Injury is a vital clinical syndrome characterized by infiltration of lymphocytes in the liver, fluid accumulation, and elevation of liver enzymes such as Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in the serum. There are many causes of liver injury, but in this particular study Staphylococcal Enterotoxin B (SEB) was used to induce acute liver injury in mice, it is previously known that (SEB) it act as superantigen that bind with T cell receptor variable region beta chain (VB8), and MHC II of Antigen Presenting Cells (APCs), which leads to activation of T - cells, and huge secretion of pro - inflammatory cytokines, all of these events cause an acute liver injury lead to liver failure, and death. In the last few decades the importance of some natural products appeared, in which these botanicals have an anti - inflammatory properties. Resveratrol is one of these botanicals with an anti - inflammatory effects, which was used as treatment in this study.This study was particularly intended to study the influence of Resveratrol on acute liver injury induced by Staphylococcus Enterotoxin B, lead to liver failure which includes estimation of aspartate aminotransferase levels (AST), histopathological analysis, immune cell counts of liver and spleen, in addition, study whether resveratrol has the ability to cause immunological changes on different immune cells that lead to suppress acute liver injury by using flowcytometry technique,these cells are inflammatory cells carrying CD3+ T cells, CD4+ T cells, CD8+ T cells, NK1.1+ T cells, CD44+ T cells, and suppressive cells such as Myeloid Derived Suppressor Cells (MDSCs), T regulatory cell (FOXP3), as anit - inflammatory markers. Furthermore evaluate the pro - inflammatory, and anti - inflammatory cytokines by using Bio - plex. Also to determine the molecular mechanism in which resveratrol can lead to induce changes in microRNAs (miRNAs) by microarray analysis. Finally validation (miRNAs) resulting from microarray analysis and genes of interest associated with these miRNAs by Real time polymearase chain reaction (RT - PCR).After sixteen hours blood samples were collected to determine AST levels in differents groups using Nanodrop, (Fisher - USA), after sixty hours animals sacrificing organs (liver, spleen) were collected afterward liver samples in 10% formalin were sent for histopathological study, liver immune cells were isolated for counts and molecular study (microarray analysis and quantitive (RT - PCR) total RNA was isolated from liver immune cells for microarray analysis then preparation of complementary Deoxyribonucleic acid (cDNA) by Reverse transcriptase PCR. Validation of the microarray analysis data was achieved by Real time PCR. Spleen immune cells were collected afterward for flowcytometric analysis of CD3+, CD4+, CD8+, NK1.1+, CD44+ T cells, MDSCs, and T regulatory cells using cell surface staining and intra cellular staining.This study showed that Resveratrol oppose the effect of SEB induced acute liver injury through decrease AST concentrations (P< 0.0001). Also Resveratrol 50mg/Kg body weight led to cause reduction in the size of the spleen, compared to SEB+ Vehicle group. Histopathology study reported that resveratrol led to decrease of hepatic necrosis up to 10% in comparison to vehicle group with 60% of hepatic necrosis and decrease in the inflammatory response represented by immune cells as in liver immune cell counts which showed a significant decrease (P< 0.014) after 50mg/ Kg body weight of Resveratrol treatment. Spleen immune cell counts result reported a significant decrease (P<0.013) in the total cells when Resveratrol was used as treatment compared to disease group. Regarding to Flowcytometric analysis, it was found that Resveratrol significantly decrease the absolute count of CD3+, CD4+, CD8+, NK1.1+, CD44+, Foxp3+ T cells in C57BL/6 mice (P< 0.0019, P< 0.001, P< 0.009, P< 0.002, P< 0.03, and P< 0.03 respectively). While MDSCs result reported significant increase with P< 0.01 in absolute cell counts after Resveratrol treatment. Depending on the Bio - plex data showed significant decrease in serum concentrations of inflammatory cytokines IL - 1?, IL - 1?, IL - 3, IL - 5, IL - 12p(40), IL - 12p(70), IL - 13, IFN?, MIP - 1?, MIP - 1?, KC and Rantes cytokines with significant P values (0.009, 0.004, 0.034, 0.004, 0.0009, 0.01, 0.0007, 0.009, 0.0037, 0.0001, 0.0035, 0.006 respectively), while anti - inflammatory cytokines IL - 6, IL - 10 and G - CSF c showed a significant increase in the serum concentration after Resveratrol treatment with a P values of, 0.012, 0.02 and 0.001 respectively. Microarray analysis results recognized 451 miRNAs with P< 0.05, according to fold change expression, 78 miRNAs have fold change greater than - 1.5 fold of expression in Resveratrol treatment group (downregulated), while 87 miRNAs have fold change greater than 1.5 fold of expression (upregulated). According to the ingenuity tools predicted target gene for some of these miRNAs by using miRNA.org database, the database showed that miR - 130a - 3p with - 2.28 fold expression have direct relation of binding with CSF1 gene, Real time PCR results confirmed the results obtained from microarray analysis, the result of miR - 130a - 3p showed a significant decrease of relative fold expression with P< 0.013, and Colony Stimulating Factor - 1 CSF1 (M - CSF) relative expression increased significantly after resveratrol treatment with P< 0.0001. From all of previous data, it can be concluded that Resveratrol can counteract acute liver injury induced by SEB, by decrease AST concentration. Resveratrol acts as an anti - inflammatory compound due to decrease of immune cell numbers, decrease of inflammatory markers, and increase of anti - inflammatory markers. miR - 130a - 3p with inflammatory properties downregulated after resveratrol treatment. Finally Resveratrol treatment increased relative fold expression of CSF1(M - CSF); gene which play a role in the MDSCs proliferation

دور الانترلوكين RA - 1 والسكليروستين والخلية التائية المستجيبة CD4 في مصل مرضى التهاب المفاصل الرثوي == Role Of Serum IL - 1RA, Sclerostin And Effector T - Cell (CD4) In Rheumatoid Arthritis Patients

Author name: سنن ثائر عبد الوهاب
Supervisor name: حيدر صباح كاظم | علاء الدين مظفر زبير
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: التهاب المفاصل الرثوي هو احد امراض المناعة الذاتية الاكثر شيوعا والذي يتميز بالتهاب المفاصل المزمن والذي يؤدي فيما بعد الى تدمير المفاصل.لا يزال مرض التهاب المفاصل الرثوي يعرف على انه سمة من التوسع في الغشاء الزليلي وارتشاح الخلايا الالتهابية اضافة الى | Rheumatoid arthritis (RA) is one of the most common systemic autoimmune diseases characterized by chronic joint inflammation and subsequent joint destruction. It is well known that RA is characterized by the expansion of the synovium and infiltration of the inflammatory cells coupled with destruction of adjacent articular cartilage and bone. This is strongly dependent on CD4 T cell. CD4 Cells stimulate monocytes, macrophages, synovial fibroblasts, and other cells to produce cytokines such as tumor necrosis factor - ? (TNF - ?), interleukin - 1 (IL - 1), IL - 6, IL - 15, IL - 17 and metalloproteinases that produce tissue damage. TNF is a major inflammatory cytokine contributing to the pathogenesis of RA, which provides rational for development of anti - TNF biological agents in the treatment of RA.Wnt pathway (a complex protein network) important in control of the bone formation through the regulation of osteoblast activity, and sclerostin is an important in the regulator of the Wnt pathway by blocking Wnt binding to its receptor and thereby inhibiting bone formation. Blockage of Wnt antagonists such as sclerostin will trigger repair or even healing of bone erosion.Recently have shown that IL - 1Ra has been given therapeutically in several experimental models of arthritis with weak effect in RA. This study planned to evaluate the frequencies of CD4+CD25+ Treg cells in Iraqi patients treated with RA under treatment with biological therapy (Etanercept). The level of serum sclerostin, serum level of IL - 1RA, and investigate the correlation between serum sclerostin and Treg expression. Correlate the level of serum sclerostin and Treg expression with disease activity by (CDAI or DAS28).This study was performed during the period from January 2016 to May 2016.The patients were attending the out patients' Clinic in Medical City/Baghdad Teaching hospital/Rheumatology Unit and the laboratory Enzyme Linked Immunosorbent Assay tests were done in Bio - technology center at the University of Al Nahrain, flow cytometery analysis was performed in the private laboratory (Al Rawabi Laboratory) at Yarmouk/Baghdad. Thirty patients and 30 apparently healthy control individuals were included in this study, Patients under treatment of etanercept.The diagnosis of RA patients has performed under the rheumatologist consultant at the consultation clinic of Baghdad Teaching Hospital of the medical city. Blood samples had taken from RA patients to measure Erythrocyte Sedimentation Rate, Complete Blood Picture, Rheumatoid Factor and High - Density Lipoprotein. Also, analyze the serum levels of Anti - Citrullinated Protein Antibodies and estimate the levels of sclerostin and IL - 1RAin patients and healthy individuals using Enzyme Linked Immunosorbent Assay test kits. CD4+CD25+ Treg cells had achieved by flow cytometery analysis.The results showed the reduction in Treg cells in patients (0.00264 ± 0.002) % under biological therapy than control group (0.026 ± 0.012) % with significant difference (p< 0.05). Also body mass index showed significant difference between patients (32.10 ± 5.81) kg/m2 and control group (28.84 ± 4.67) kg/m2 (p< 0.05). The results showed that sclerostin level higher in healthy (1.072 ± 0.59) ng/ml than patients (0.801 ± 0.28) ng/ml which showed significant difference (p<0.05). Furthermore IL - 1RA serum level was higher in healthy (0.979 ± 0.34) ng/L than patients (0.633 ± 0.35) ng/L with significant difference (p<0.05). Anti - Cyclic Citrullinated Peptide results showed non - significant difference between patients and healthy control. Treg cells is reduction in the patients with RA. Sclerostin and IL - 1RA levels are low in patients treated with etanercept.

دور بعض المؤشرات الالتهابية المختارة في البول وبروتينات خلية البودوسايت عند مرضى اعتلال الكلية السكري == The Role Of Selected Urinary Inflammatory Markers On Podocyte In Type 2 Diabetic Nephropathy

Author name: داليا محمود خلف
Supervisor name: رفيف صبيح الشوك | عصام نوري الكروي
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اعتلال الكلية السكري هو السبب الرئيسي للمرض الكلوي المزمن وويرتبط ذلك مع زيادة وفيات مرضى القلب والاوعية الدموية. التعريف الكلاسيكي لاعتلال الكلية السكري هو زيادة افراز البروتين في البول. وتتميز المرحلة المبكرة للمرض عن طريق زيادة صغيرة في افراز الزلا | Diabetic nephropathy (DN) is the leading cause of chronic renal disease. It is associated with increased cardiovascular mortality. The DN has been classically defined as increased protein excretion in urine. Early stage is characterized by a small increase in urinary albumin excretion (UAE), also called microalbuminuria or incipient DN. More advanced disease is defined by the presence of macroalbuminuria or proteinuria. The latter is classically named overt DN.This study was planned with the aim of evaluate the levels of urinary Monocyte Chemoattractant Protein - 1(MCP - 1), interleukin (IL - 18), Osteopontin and Nephrin at diabetic nephropathy and its correlation with the parameters in Iraqi type 2 diabetic subjects and to explore the impact of albuminuria and duration of the diabetes on fine glomerular architecture using podocyte injury related marker (Nephrin) in urine. This may explore the more specific, and sensitive early biomarkers for nephropathy in diabetic patients and could help the physicians in controlling the occurrence of renal failure.Sixty Iraqi type 2 diabetes mellitus patients attending the National Diabetes Center for Treatment and Research at Al - Mustansiriyah University during the period October 2014 - June 2017 were recruited for this study. For the purpose of comparison, 20 control subjects matched for age, gender and ethnic background were also included. The patients and controls were characterized in family history of diabetes, diabetic nephropathy groups divide by used Albumin to creatinine ratio. The patients were also assessed for duration of disease, fasting serum glucose, and serum creatinine and blood urea.The mean urinary level of MCP - 1 (15.38±15.50 vs. 6.10±7.23pg/ml) and IL - 18 (35.90±16.67 vs. 23.55±12.67pg/ml) and osteopontin (337.15±257.06 vs. 174.11±183.65ng/ml) and nephrin (100.01±88.66 vs. 52.23±19.61ng/ml) were significantly higher in T2DM patients as compared to controls.The mean levels of urinary MCP - 1, uIL - 18 and osteopontin in macroalbuminurea group of patients were significantly higher than those in normoalbumine ( p < 0.008, p< 0.0001 and p< 0.03 respectively), and only of the Nephrin in the normoalbuminurea group of patients showed significant increased level as compared to the controls (52.23±19.61 vs.75.05±37.8 ng/ml) (p<0.022).The duration of disease showed an increase in mean of urinary level for all the markers MCP - 1, IL - 18, osteopontin and nephrin (17.01±18.09 vs. 19.76±21.30 pg/ml, 29.24±15.98 vs. 42.98±17.25pg/ml, 321.1±291.05 vs. 409.05±210.0ng/ml, 99.40±48.40 vs. 79.21±44.23 ng/ml) respectively, in late duration of disease as compared with early duration of disease except in Nephrin showed the early duration of disease higher than the late duration of disease (99.40±48.40 vs. 79.21±44.23), although the differences were not significant.The Receiver operating characteristic (ROC) curve analysis for all markers MCP - 1, IL - 18, Osteopontin and Nephrin levels (MCP - 1 = 0.72, IL - 18 = 0.71, Osteopontin =0.70 and Nephrin =0.72) for early diagnosis and detection of DN revealed that the cut - off value of uMCP - 1 was 6.23 pg/mg with 70% sensitivity and 75% specificity; whereas, the cut - off value of u IL - 18 pg/ml was 23.69 ng/mg with 80% sensitivity and 59% specificity and Nephrin was 49.5 ng/ml with 78% sensitivity and 55% specificity. uOsteopontin was 182 ng /ml with 68% sensitivity and 69% specificity.The linear correlation revealed a significant positive linear correlation between urinary MCP - 1, IL - 18, Nephrin and A : C ratio, also showed a significant negative linear correlation between urinary MCP - 1, IL - 18, osteopontin and GFR.In conclusion the Nephrin may be considered as potential diagnostic and prognostic biomarker a for the early detection and progression of diabetic nephropathy while the uMCP - 1, uIL - 18 and uOsteopontine may be considered as potential prognostic biomarkers for the diabetic nephropathy. The duration of disease also affect investigated biomarkers suggesting the long term effect of hyperglycemia

تقدير مستويات السايتوكينات (الحركيات الخلوية) المولدة للالتهاب والمضادة للالتهاب لدى مرضى فصال العظام في الركبة قبل وبعد الحقن بالبلازما الغنية بالصفيحات الدموية == Estimation Of Pro - Inflammatory And Anti - Inflammatory Cytokines In Patients With Knee Osteoarthrosis Before And After Injection With Platelets - Rich Plasma (Prp)

Author name: حسنين خضير عبد العباس
Supervisor name: عبد العظيم ياسين عبود البراك | سامر محمد رضا عنون | زيد وجيه رؤوف الشهواني
General topic: Medicine
Specific topic: Microbiology
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: التهاب العظام والمفاصل Osteoarthrosis)) او فصال العظام او ما يعرف بالاسم الشائع السوفان هو مرض يحدث في غضروف المفصل الذي يعمل على عدم احتكاك عظام المفصل ,مما يؤدي الى تقليل هذه الحماية ضد الاحتكاك فتصبح حركة المفصل بها خشونة ومصحوبة بالالام عند استخدام ا | Osteoarthrosis (OA) are defined as a progressive architecture destruction of the joints compared to slow healing of these joints which leads to reduce protection against degeneration and the movement of the joint is associated with by the roughness and accompanied by pain when using the joint. Often this disease affect the knee joint, it may affect any other joint in the body, especially those that carry weights such as leg hinges the pelvis, elbow and spine. The aim of this study is to evaluate the efficacy of platelets - rich plasma injection in osteoarthritis knee and the estimation of the biological and immunological markers associated with the treatment. This study involved 50 patients suffering from inflammation of the knee joint under supervision of speiclist of orthopedic ,most of these patients attended Al - Shaheed Firooz hospital in wasit Governorate and specialty private clinics of orthopedic and Rheumatology in the district during the period from April 2015 until October 2015.The age of patients was about 35 - 65 years; 31 females and 19 males with 25 healthy matching group. All patients were injected into the knee joint by a specialist physician with two injections during two months with platelets - rich plasma (PRP)after its preparation from the same patient's blood in sterile conditions. This was done after the signing of the patient or one of his relatives on the written consent to conduct the injection process after explaining and clarifying the principle of injection and the purpose. The level of pain of patients group was measured by Visual Analogue Scale (VAS). The enzyme linked immunnosorbant assay ELISA method to determine the level of some of cytokines in serum of patients group (interleukin - 1beta, tumor necrosis factor - alpha,IL - 10,IL - 8 and Transforming growth factor - B1) in addition to measuring the concentration of C - Reactive protein (CRP).The rate of Erythrocyte Sedimentation Rate (ESR) was also estimated. All were done to all patients groups before and after injections with PRP in addition to healthy group. Statistical analysis showed no significant differences between males and females (54.5±1.2 males, 53.2±2.1 females). The study showed significant decrease in the mean of the Visual Analogue Scale (VAS) of patients before and after two months of injections with (PRP) 8.46 ± 0.104, 5.98 ± 0.129, , respectively, with highly significant differences (P=000.0) , also the study showed that there was no significant differences in VAS between age groups (30?s, 40?s, 50?s , 60?s) before and after injections with PRP (7.5,8.0 ,8.38 ,9.05), (5.0,5.55,5.69,6.7) respectively. The study also showed a difference in the mean for inflammatory marker C. Reactive protein concentration before and after injections with PRP 7.156± 0.328 µg/ml, 5.384± 0.196 respectively, in comparison with healthy group with highly significant differences (P=0.000).The study also showed a difference in the mean of ESR before and after injections with PRP (35.66± 0.879 mm/1hr, 23.7±0.856) respectively, with in comparison with healthy group highly significant differences (P=0.000).The mean of Interleukin 1 - Beta(IL - 1?) was decline after injections with PRP from 13.220±0.295, pg/ml to 9.622 ± 0.273 pg/ml in comparison with healthy group with highly significant differences (P=0.000). Also a decline in the mean of Tumor necrosis factor - alpha (TNF - ?) after injections with PRP from 62.384±0.927 pg/ml to 55.36 ± 1.121 pg/ml in comparison with healthy group with highly significant differences (P=0.000). The study also demonstrates a decrease in the mean of Interleukin - 8 (IL - 8) before and after injections with PRP (41.092±0.808 pg/ml, 35.93 ± 0.813pg/ml) respectively in comparison with healthy group with highly significant differences (P=0.000). An increase in the mean of Interleukin - 10(IL - 10) after injections with PRP from 5.108±0.291 pg/ml to 6.734±0.330pg/ml, in comparison with healthy group with highly significant differences (P=0.000). The final parameter in this study was demonstrated an increase in the mean of Transforming growth factor - ?1 (TGF - ?1) before and after injections with PRP (111.544±6.960, 149.212±7.540pg/ml) respectively in comparison with healthy group with highly significant differences (P=0.000). Association was obtained between VAS score and C. RP as well as ESR after treatment. PRP treatment also has an impact on increasing the level of anti - inflammatory IL - 10 and TGF - ?1 on one side and the decreasing level of pro - inflammatory IL - 1?, TNF - ?,IL - 8 (catabolic marker) on the other side these results suggest the inhibition of catabolic process demonstrated by reducing of VAS scores and the efficacy of effectiveness plasma rich platelets (PRP) treatment of osteoarthrosis.

دراسة التعبير المناعي النسيجي الكيميائي لبعض المعلمات المناعية في مختلف درجات سرطان البروستات == Study The Immunohistochemical Expression Of Some Immunological Markers In Different Grades Of Prostate Cancer

Author name: حسن هادي زريج
Supervisor name: زينب فاضل عاشور | وسن عبد الاله باقر
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Prostate cancer is the most common malignancy and the second leading cause of cancer related death among males worldwide. Prostate cancer developed in prostate , a gland that is located below the bladder and just in front of rectum.Inflammation is a fundamental physiological process that can arise in any tissue in response to traumatic, infectiousor autoimmune injury. Transforming growth factor beta one (TGF - ?I) is a potential regulator of prostate cancer cell growth that signals through a heteromeric complex composed of type I and type II receptors.TGF - ?R II is an important receptor , because TGF - ? bind to receptor II to initiate it's signaling, then receptor II recruits receptor I to initiate signal transduction. Interleukin - 17 (IL - 17) is a pro - inflammatory cytokine produced by T - helper 17 (Th17) cells contributes toboth the processes by playing a dual role in the antitumor immunity. On one hand, IL - 17 encourages an antitumor cytotoxic T cell response leading to tumor regression. On the other hand, by promoting angiogenesis and egress of tumor cells from the primary focus, so IL - 17 promotes tumor growth.This study was carried out to establish the correlation between expression of Transforming growth factor beta one(TGF - ?I), Transforming growth factor beta receptor one (TGF - ?RI) and Transforming growth factor beta receptor two (TGF - ?RII) and prostate cancer progression. Also to establish the role of IL - 17 in prostate cancer development.The study consisted of 16 patients with poorly differentiated malignancy (PDM) ,whose age ranged (48 - 89) years, with mean age of (71.2) years , and 25 patients with moderately differentiated malignancy(MDM) , whose age ranged (31 - 83) years , with mean age of (66.6) years , and 46 patients with benign prostatic hyperplasia (BPH) , whose age ranged (27 - 85) years , with mean age of (64.3) years. Allpatients were diagnosed surgically by consultant physicians in Baghdad hospital for specialist surgeries , Al - Yarmook teaching hospital ,as well as AL - Hilla teaching hospital , and 20 normal tissue sample taken from cadaver, whose age ranged (17 - 28) years , with mean age of (21.8) years , where chosen as a control group. The work was conducted in Iraqi center for cancer and medical genetic researches. The study were performed during the period from March 2014 to December 2014).Immunohistochemistry (IHC) technique was used to detect the level of expression of TGF - ?I , TGF - ?RI , TGF - ?RII and IL - 17 protein in tissues of patients and healthy control groups.The current study revealed that there was significant difference in mean levels of TGF - ?I protein expression between each of poorly and moderately differentiated malignancy compared with healthy control subjects with P - value of 0.001 , but there was no significant difference in mean level of TGF - ?Iprotein expression between benign prostatic hyperplasia and healthy control subjects with P - value of 0.398. Also there was no significant difference between poorly and moderately differentiated malignancy in mean level of TGF - ?I protein expression.TGF - ?R1 protein was expressed in 3 (18.7%) and 14 (56%) of poorly and moderately differentiated malignancy respectively , with weak immunostaining reaction was the most frequent score. There was significant difference in mean level of TGF - ?RI protein expression among all studied groups. TGF - ?RII protein was expressed in 6 (37.5%) and 22 (88%) of poorly and moderately differentiated malignancy respectively ,with weak immunostaining reaction was the most frequent score. There was significant difference in mean level of TGF - ?RII protein expression among all studied groups.IL - 17 immunohistochemical expression was detected in tissues of all studied groups , the results showed that moderate immunostaining reaction was the most frequent score among them. There was significant difference in mean levels of IL - 17 protein expression among all studied groups.We concluded that there was statistically significant association between the loss ofexpression of TGF - ?1 signaling receptors, especially TGF - ?RI, andincreasing grades of malignancy in prostate cancer. These resultssuggest a potential mechanism for prostate cancer cells toescape the growth inhibitory effect of TGF - ? and thus, leadingto a more malignant phenotype.

دراسة المقاومة المتعددة للمضادات الحيوية لعصيات التدرن لدى مرضى التدرن الرئوي == A Study On Drug Resistance Of Mycobacterium Tuberculosis Isolated From Pulmonary Tuberculosis Patients

Author name: انمار ليث طالب الحسني
Supervisor name: عامر رشيد النجار | احمد اسمر منخي
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تعتبر عزلات جراثيم التدرن المقاومه للادوية من المشاكل الرئيسية في معالجة مرضى التدرن حول العالم. , ولاهميته اجريت هذه الدراسة لتسليط الضوء اكثر حول الحساسيه الدوائية بواسطة الطرق المختبرية التقليدية وعلى الوسط الصلب ومقارنته مع الطرق التشخيصية المختبرية ا | Drug resistant tuberculosis remained as major problems in the treatment of tuberculosis patients in the world. A prospective study was conducted to evaluate drug susceptibility testing (DST) by classical methods on solid media as compared with advance and molecular Laboratory diagnostic methods (Bactec MGIT 960 and GeneXpert MTB - RIF ). The study included the estimation of the first line anti - TB drugs, including (Rifampicin,Isonizid,Streptomycin and Etambutol) by solid media (Lowenstein - Jensen medium) and Bactec MGIT 960 system. In addition, the use of rapid molecular diagnostic method by GeneXpert MTB/RIF assay. Seventy five TB patients attending the National Reference Laboratory of Tuberculosis /medical city - Baghdad from December 2015 to June 2016 were included in this study. Patients were classified into two main groups : selected MDR patients, which were referred from different hospitals and health respiratory center in Iraq, represented 46 in order to compare different laboratory methods to detect of DST isolates, while 29 were randomly isolated and identified , the study matched by age and gender were also included. This study revealed that the drug resistance tuberculosis to Rifampicin was 47 (62.7%), Isonizid 41 (54.7%), Streptomycin 42 (56.0%) and Ethambutol 38 (50.7%). Respectively , on the golden stander in which solid media were used.The molecular and advance technique (GeneXpert and Bactec MGIT 960) as applied to estimation of drug resistance tuberculosis, the results of drug susceptibility testing (DST), as showed highly sensitivity and Accuracy, when compared with golden stander( LJ media) especially in detected of primary drugs (Rifampicin and Isoniazid) and showed lower sensitivity and accuracy to detected of the secondary drugs (Streptomycin and Ethambutol). The Multiple drug resistance (MDR - TB) case from selective samples was found to be almost similar to that found in other countries of the middle east and other regions in the world. While in the randomly identified samples, the rate of MDR - TB was lower than the referred (previously treated) cases.The GeneXpert MTB - RIF system is rapid molecular methods that used in many countries to identify of MTB and Rifampicin detected during 2 hours only, that used in this study. The high Rifampicin resistance and other drugs of local isolates could be due to abuse of the drug,defaulter and relapse of retreating cases (previously treated).
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