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التحري عن بعـض عوامل الفوعة لبكتريا المكورات Enterococci المعوية المقاومة للمضاد الحيوي الفانكومايسين == Detection of Some Virulence Factors of Vancomycin - Resistant Enterococci

اسم المؤلف: حيدر صباح كاظم الخماسي
اسم المشرف: مي طالب فليح
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم الحصول على (20) عزله لبكتريا المكورات المعوية البرازية من اصل (135) عينة جمعت من مستشفى مدينة الطب ومستشفى الكندي وهي كما ياتي (15 عينة الادرار, 60 عينة دم, 50 عينة من قنوات الجذر للاسنان و10 عينة من الحروق).اختبرت الحساسية لهذه العزلات العشرون لـ 11 | Clinical sampling was carried out between September and December 2013, Twenty Enterococcus faecalis isolates were obtained from 135 clinical specimens. The samples included of patients in Medical City Hospital and Al - kindy Hospital (15 urine, 60 blood, 50 root canal and 10 wound swabs) Antibiotics susceptibility test for 20 isolates was done against 11 antibiotics, it was revealed that the isolates showed multi drug resistance were (18) isolates. The vancomycin susceptibility was determined by the minimum inhibitory concentration (MIC). Resistant and intermediate resistant to vancomycin was distributed among isolates at a ratio of 65% and 20%, respectively. Imipenem was found to be the most bactericidal agent against E. faecalis isolates E. faecalis virulence factors were detected phenotypically, The results showed that all isolates (100%) were hemolysin, protease and aggregation substance producer. 30% of isolates showed an ability to produce gelatinase. While (40.7%) of the isolates were a lipase producer. The results of the tube method showed that all E. faecalis isolates (100%) were slime layer and biofilm producer but the amount of adherent layer were different among the isolates ranged from strong to moderate and weak.The extracted DNA was subjected to Polymerase chain reaction (PCR) technique in a monoplex pattern to amplify the virulence factor Enterococcal Surface Protein (esp) which is chromosomal, results of this investigation showed that 20 (100%) E. faecalis isolates gave the amplicon size 933 base pair for the esp gene.The genetic determinants of Vancomycin - Resistant vanA and vanB genes were amplified using monoplex and multiplex PCR techniques in order to identify vancomycin resistant (van+) and sensitive (lacking van) among (13) E. faecalis. The vanA, vanB genes were detected in 11 and 4 E. faecalis isolates, respectively. The results of monoplex and multiplex PCR revealed that the molecular weight of vanA and vanB genes were 550 and nearly 600 bp, respectively. The results revealed that the vanA and vanB amplicons have a genetic variation in their molecular weight during the electrophoresis of PCR product.

التحري عن الطفرات في جيني CNTNAP2 وIL1RAPL1 في مرضى التوحد == Mutation Screening of CNTNAP2 And IL1RAPL1 Genes In Autistic Patients

اسم المؤلف: بشير كاظم خرميط
اسم المشرف: عبد الكريم عبد الرزاق القزاز
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: ان اضطرابات طيف التوحد هي مجموعة من الظروف التي تتميز بضعف في التواصل الاجتماعي ونمطية في السلوك. يختلف الاشخاص المتوحدين اختلافا كبيرا في التطور المعرفي والتي يمكن ان تتراوح من فوق المتوسط الى العجز في التفكير. رغم ان اضطرابات طيف التوحد هي تورث بشكل كبي | The autism spectrum disorders (ASDs) are a group of conditions characterized by impairments in reciprocal social interaction and communication, and the presence of restricted and repetitive behaviors. Individuals with an ASD vary greatly in cognitive development, which can range from above average to intellectual disability (ID). While ASDs are known to be highly heritable (~90%), the underlying genetic determinants are still largely unknown. The research studies correlate between Contactin - associated Protein - Like 2 (CNTNAP2), Interleukin - 1 Receptor Accessory Protein - Like1 (IL1RAPL1) genes and ASDs. This study includes forty autistic patients and forty non autistic children as control groups (twenty unaffected sibling and twenty unrelated children). The age of autistic and non autistic children was ranged from 3 to 10 years. Blood samples of autistic patients were collected from Rahman specialist centre for the care and service autistic children in Baghdad. DNA was extracted from blood samples for molecular detection of CNTNAP2 and IL1RAPL1 mutations associated with ASDs by the use Polymerase Chain Reaction (PCR) technique and sequence analysis. PCR reaction was performed to amplify exons (14, 17 and 20) of CNTNAP2 gene that encode to CASPR2, a member of the neurexin family which functions in the nervous system as cell adhesion molecules and receptors. The PCR results revealed that identical bands related to the CNTNAP2 exons were present in all samples. Therefore, five samples (four from autistic patients and one from control sibling) were selected for genotype analysis of CNTNAP2 exons (14, 17 and 20) by direct sequencing. Genotype analysis revealed that there were no any variants in CNTNAP2 exons, but it shows that four different mutations were identified in non coding region (introns) of the CNTNAP2 gene. These mutations were seen only in autistic patients but absent in control sample. Three of these mutations are single nucleotide polymorphisms (SNPs) (rs3779031 A/G in 2118282 position, rs3779032 A/C in 2118436 position and T/G in 2117905 position). The other mutations were deletion in one nucleotide (Del A/ - in 2117901 position). SNP rs3779032 A/C are located at intron 21 while other mutations are located at intron 19. The current study showed that two common SNPs (rs3779031 and rs3779032) in CNTNAP2 were strongly associated with ASDs, where the frequencies of these SNPs were relatively high. SNP rs3779031 identified in two autistic patients while rs3779032 identified in three autistic patients from four unrelated families with ASDs. PCR reaction also was performed to amplify exons (3, 4, 5, 6, 7, 8 and 9) of IL1RAPL1, a gene implicated in calcium - regulated vesicle release and dendrite differentiation. The PCR results show a large intrgenic deletion (Deletion of exons 3 and 4) in six autistic patients, two of these patients were twin. This deletion may be incomplete penetrance due to phenotypic heterogeneity of these patients. This study provides evidence of the role of genetic factors in the etiology of ASD and the important CNTNAP2 and IL1RAPL1 genes mutation of pathogencity ASDs.

الازالة الحيوية لليورانيوم والسيزيوم من الترب الملوثة بواسطة نبات الشعير == Phytoextraction of Uranium And Cesium From Contaminated Soil By Hordeum Vulgare Plants

اسم المؤلف: سيف صبار كامل
اسم المشرف: ناظم حسن حيدر
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Phytoremediation is defined as the use of green plants to remove pollutants from the environment or to render them harmless. Phytoremediation process can be classified based on the contaminant fate as; Phytoextraction, Phytotransformation, Phytostabilization, Phytodegradation, Rhizofiltration. In this work, the phytoextraction process was employed. A piece of land in the Botanical Garden at the University of Baghdad with an area of 25 m2 was prepared to plant the barley plant. Then, seeds of barley of type "Samir", which is an Iraqi kind that suitable for cultivation in Iraq, have been seeded. For U and Cs experiments, soil was mixed with a limited quantity of each U isotope for three different concentrations; 152 Bq/kg, 95 Bq/kg and 81 Bq/kg and for Cs106.5 Bq/kg, 79 Bq/kg and51 Bq/kg. For NPK and Urea experiments, different concentrations were tested to establish the requirements of these experiments. The LB4100 - W counting system includes the most complete data analysis software package was used to measure and calculate the alpha and beta concentrations and subsequently the overall activity concentration of any studied sample. Samples were prepared by following the Indian Standard method. For U, the experiment achieved by dividing it into four groups that differ in the spent time of agriculture in contaminated and clean (reference) soils. The results illustrated that the phytoextracted of U with planted period in contaminated soil, which were 31, 50, 63, 34 days, were 36.22, 54.84, 76.24, and 66.30 Bq/kgm, respectively. However, the 4th group differs comparing with other groups in the spent time of cleaned soil, which was 73 days. For Cs experiments, the work grouped similar to U experiment. The results of Cs phytoextraction showed that the absorbed Cs were 54.34, 100.69 and 109.07 for spent times in contaminated soil; 23, 43 and 57 respectively. Furthermore, barley plant has significant ability to phytoextract U and good ability to phytoextract Cs for all the three different concentrations. Besides, the results illustrated that the increase in the planted time in contaminated soils led to increase the quantity of phytoextracted isotopes. The results of adding K fertilizer showed a decrease in the ability of barley to absorb U, while the addition of urea enhanced the ability of barley. Finally, the following conclusion can be drawn from the present study that : barley is a good tool to phytoextract Cs rather than U and the use of urea fertilizer is suitable for enhanced the phytoextraction process.

الكشف الجزيئي عن التغيرات في جين MSX1 المسؤول عن حالة فقدان الاسنان باستخدام سلسة تفاعل البلمرة في عينة من المرضى العراقيين == Molecular Detection of Msx1 Gene Changes Responsible For Causing Hypodontia Using Polymerase Chain Reaction (PCR) In Sample of Iraqi Patients

اسم المؤلف: اماني احسان الصقر
اسم المشرف: اسماعيل حسين عزيز | اكرم فيصل الحويزي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: مصطلح الهايبودونشيا يعني نقص الاسنان الخلقي ويعد من اكثر التشوهات الفموية حدوثا لدى الانسان. مائة وخمسة وسبعون من مرضى نقص الاسنان الخلقي سجلوا في هذه الدراسة لديهم على الاقل سن واحد مفقود ولايزيد عدد الاسنان المفقودة عن ستة، قصدوعلاج الاسنان التقويمي في | Hypodontia means congenitally missing teeth, and considers as one of the most common oral alteration in human. One hundred and seventy five of hypodontia patients were matriculated in this study, having at least one missing tooth and no more than 6 missing teeth, seeking orthodontic treatment, who attended Al - Huwaizi Dental Center at AL - Harethia District - Baghdad, and control group consists of twenty five apparently healthy subjects (15 females, and 10 males). The age of both groups ranged from14 to 65 year. Buccal swabs were collected (for molecular study) from 25 of those patients who attended the clinic in a period between the beginnings of October 2013 to the end of April 2014, and from control group. Information were taken from the subjects under study according to a questionnaire that includes, name, gender, age, family and medical history, and the place of residence. Hypodontia was diagnosed according to the history of patients, clinical examination, orthopantomogram (OPG), and dental casts. The result of demographic study of hypodontia patients revealed that hypodontia was found in 129 of females which were more than that in males(46) with significant difference (p < 0.05). The ratio of females to males was 2.8 : 1. The missing teeth in hypodontia patients were found in right, left or both sides. The number of hypodontia patients, who had missing teeth in the right side were 37, in the left side were 48, while in both sides reached to 90 with non - significant differences and the results clarified that the missing teeth in anterior region found in 81 patients were higher than that in posterior region (63) while the least in both regions which recorded in 31 patient. It was found that hypodontia was more common in the maxilla (73) (upper jaw) than that in mandible (65) (lower jaw), whereas 37 suffering from missing teeth in both jaws, with non - significant differences. Present results showed that the maxillary lateral incisor (LI) was the most frequently missing tooth (124), the second most missing tooth was mandibular second premolar (PM2) (101) followed by lower central incisor (CI) (33), the maxillary second premolar(PM2) (27) whereas the lowest frequently missing teeth were canine (C), and the first premolar (PM1). The molecular part of present study used polymerease chain reaction (PCR) technique for amplification of DNA samples extracted from buccal swabs of twenty five hypodontia patients and control group.Four pairs of primers X1.1F, X1.3R; X1.4F, X1.4R; X2.1F, X2.3R, and X2.3F, X2.4R of the MSX1 gene, obtained from Bioneer Company (Korea), were used to amplify overlapping regions of the 2 exons of the MXS1 gene. The first pair of primers was used to amplify fragment with product size of 421 bp., while the second, third, and forth pairs of primers were used to amplify fragments with product size of 152 bp., 493 bp., and 264 bp., respectively. The outcome of MSX1 gene amplification showed that four patients with the first pair of primers and nineteen patient with the third pair of primers gave negative result (no bands) which differed from the result of the other patients and control. The disappearance of bands may be attributed to MSX1 microdeletion in those patients.The sequencing of MSX1 gene for the PCR product of second, third and fourth pairs of primer showed no genetic mutation, while the PCR product of the first pair of primers reveled nine missense and two silent mutations.It was concluded that hypodontia occurre frequently in Iraqi population and its occurrence in females was higher than that in males, and the gene MSX1 is responsible for many teeth missing in hypodontia patients.

استخلاص وتوصيف المنشط السطحي الحيوي Rhamnolipid من بكتيريا Pseudomonas aeruginosa المعزولة من بعض الحالات السريرية والبيئية == Extraction And Identification of Rhamnolipid Biosurfactant From Pesudomonas Aeruginosa Isolates From Clinical And Environmental Cases A Thesis Submitted

اسم المؤلف: مها هاني توفيق الخزرجي
اسم المشرف: ندى صباح رزوقي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: هدف البحث الى التعرف على فاعلية التدريس باستراتيجية التعلم بالتعاقد في تحصيل مادة علم الاحياء لدى طلاب الصف الثاني المتوسط وتفكيرهم الابداعي. وللتحقق من ذلك تم صياغة الفرضيتين الصفريتين الاتيتين : 1 - لا يوجد فرق ذو دلالة احصائية عند مستوى (05.0) بين مت | 50 isolates of the bacteria Pseudomonas aeruginosa was obtained from 201 clinical samples were distributed between Burn Specialist Hospital and teaching laboratories from patients with burns, infected wounds, middle ear infection, urinary tract infection and respiratory tract infection for a period from 1st February till 1st May. And we obtained 50 bacterial isolates from 20 samples from contaminated and non - contaminated soils were distributed different areas of Baghdad for a period of 1st May 2013 till 1st August.Number of cultural microscopically, biochemical and sensitivity to antibiotics tests had been, than diagnosis was confirmed by API20E system.These isolates was tested for ability to production of biosurfactants (rhamnolipid) by haemolysis, oil spreasding test, calculate value of emulisification factor (E24) and measuring surface tension for liquid media. Tow isolates (PS42 and PP8) had been selected, first one was from soil samples and other was from pathological samples because of they have highest productivity, haemolysis ability, oil spreading, highest emulisification factor value and highest in lowering surface tension, there for these tow isolates selected for study their inhibitory activity against types of bacteria. The rhamnolipid was extracted from tow isolates P. aeruginosa PP8 and P. aeruginosa PS42 by using mixture of solvents as was obtained 15.45 g and 18.25 g per liter of each of the PP8 and PS42 respectively. The rhamnolipid was diagnosed by thin layer chromatography technology (TLC) and high - performance liquid chromatography (HPLC) showed that tow bacteria produced three types of rhamnolipids (mono - , di - rhamnolipid and rhamnolipid A). The rhamonlipid efficiency was tested for inhibitory activity against bacteria by measuring diameter of inhibitory zone surrounding holes and discs. The inhibitory activity was high against Bacillus cersus bacteria followed by P. aeruginosa, than Staphylococcus aeraus and the lowest one was E. colli. The inhibitory activity for biosurfactant was approached to inhibitory activity for industrial surfactants. Also in this study has been determined minimum inhibitory concentration (MIC) value and Minimum Bactericidal Concentration (MBC) value for biosurfactants and the results varied depending on different types of biosurfactants and type of bacteria and the lowest values for MIC and MBC of biosurfactant produced by P. aeruginosa PS42 on growth of B. cereus and reached to 16.It was first time at local level for testing inhibitory activity of biosurfactant against pathogenic bacteria S. aureus and P. aeruginosa which was studied in vivo (injuried skin) after introduction these pathogens experimentally into laboratory mice with clinical symptoms appeared in injured skin after 48 hours and then treated mice groups with of 30 mg \ ml concentration of biosurfactants produced from isolates of bacterial (P. aeruginosa PP8 and P. aeruginosa PS42), resulted in a decrease in the time required for healing as found from the results obtained by the different length of period needed for healing (depending on the nature of injury and type of microorganism that causes injury).The mice had been recovered after 5 days when used biosurfactant at concentration 30 mg/ml produced P. aeruginosa PS42 followed by mice recovered after 6 days when used biosurfactants 30 mg/ml produced by P. aeruginosa PP8 in comparison with control group which recovered after 12 days for mice infected with S. aureus. In mice infected with P. aeruginosa recovered after 10 days when used biosurfactant produced by P. aeruginosa PS42 at concentration 30mg/ml and followed by mice recovered after 12 days when used biosurfactant produced by P. aeruginosa PP8 at concentration 30mg/ml in comparison with control group which recovered after 17 days.

دراسة بعض الجوانب المناعية لاصابات اللشمانيا في عينة المرضى العراقيين == Study of Some Immunological Aspects of Leishmaniasis In Sample of Iraqi Patient

اسم المؤلف: مرتضى قيس علي العامري
اسم المشرف: انوار ادريس سليمان العساف
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: This study was carried on 145 patients infected with leishmaniasis including; 75 with CL, 70 with VL, attending Al - Karama Teaching Hospital, Central Public Health Laboratory and Central Pediatric Teaching Hospital, during the period October 2013 to February 2014 were enrolled in this study, in addition to 30 healthy control collected from the National Center for blood donation for the same age groups for a group of patients. No clinical autoimmune manifestations such as arthralgia or cutaneous vasculitis were reported in any patients. Based on direct skin smear examination and serum samples analysis, the patients were distributed into two clinical groups : 30 patients suffering from cutaneous leishmaniasis and 30 patients suffering from visceral leishmaniasis patients.The presented study aimed to confirmation of diagnosis cutaneous leishmaniasis depending on direct skin smear and visceral leishmaniasis based on indirect immunofluorescent assay test IFAT, then investigate the association of IgG autoantibodies against some antigens, especially : nuclear antigens, like : ds - DNA, nucleosome, histones, SmD1, PCNA, ribosomal P0, SS - A/Ro60kD, SS - A/Ro52kD, SS - B/La, CENP - B, Scl70, U1 - snRNP, AMA M2, Jo1, PM - Scl, Mi - 2, Ku and against cardiolipin, in order to correlate the types of diseases presentation (cutaneous or visceral) with the presence of these autoantibodies in a sample of Iraqi patients.The study was reached to the following results : 1. The direct microscopically examination of skin smear in CL patients, showed positive results in 30 cases (40.0%) compared to 45 cases (60.0%) negative results, and was a significant difference at the level of (P?0.05).2. The anti - leishmanial antibodies by Indirect immunofluorescent assay test in VL patients, showed positive results in 30 cases (42.9%) compared to 45 cases (57.1%) negative results, and was a highly significant difference at the level of (P? 0.01).3. The age groups most affected in CL were 16 to 40 years, with high significant differences at the level of (P? 0.01) were observed when compared with the other age groups. As for patients with VL, who aged between 3 months to 9 years, they showed variable significant differences between age groups in female while there were no significant differences in male at the level of (P?0.01). The majority of patients were aged 3 to 4 years and they represent 9 (30.0%). The study result showed 16 CL patients (53.3%) have only one lesion, while 11 patients (36.7%) have 2 to 9 lesions and only 3 cases (10%) have ? 10 lesions in different sites of their bodies. There were elevated high significant differences at the level of (P?0.01) when compared between the groups. And 21 cases (70%) have infected for ? two months, and the remaining 9 cases get their infection for > 2 months duration. There were increased high significant differences observed at the level of (P?0.01) when compared between the groups. Dry lesions recorded superiority in 20 (66.7%) of the CL cases, and other 10 (33.3%) have been diagnosed as a wet lesions. There were elevated high significant differences observed at the level of (P?0.01) when compared between the two types of the lesion. And The upper limbs were the dominant site of lesions in the CL cases, 15 (39.4%) of the cases had their lesions in one or both hands, followed by the lower limbs in 11 (29.0%) cases and the less frequent site of infection was the face in only 4 (10.5%) cases and 8 (21.0%) cases common lesions. The results showed obvious high significant differences at (P? 0.01) between the groups.4. For the tests of the autoantibodies, the anti - ds - DNA antibody was positive only in one patients (3.3%) with CL of the total (30) patients, while tests of the rest 29 (96.7%) were negative, while in VL of the total (30) patients, 9 patients (30.3%) were positive and 21 (70.0%) were negative. The anti - ds - DNA in leishmaniasis patients were highly significant at the level of (P?0.01) when compared between the study groups. As for the anti - nucleosomes antibodies, it was positive in 5 patients (16.7%) and negative in 25 (83.3%) among patients in CL, while in VL patients, 16 patients (% 53.3) registered positive and 14 (46.7%) their result werenegative, the anti - nucleosomes antibodies in leishmaniasis patients were highly significant at the level of (P?0.01) when compared between the groups study. No score was recorded for anti - SmD1antibodies in CL patients, no one was positive 0 (0.0%) and all the 30 patients (100.0%) gave negative result for this antibody, while in patients with VL, the result showed 4 patients (13.3%) gave positive and 26 patients (86.7%) were negative, the anti - SmD1antibodies in leishmaniasis patients was significantly different at the level of (P?0.05) when compared between the groups. While the anti - SSA/Ro60kD and anti - SSA/Ro52kD, in VL patients, 9 patients (30.0%) scored positive results and 21 of the patients (70.0%) were tested negative for anti - SS - A/Ro60kD, but 7 patients (23.3%) were positive and 23 of the patients (76.7%) were tested negative for anti - SS - A/Ro52kD. While in patients with CL, no one scored positive (0.00%) and 30 of the patients (100.0%) were negative for anti - SS - A/Ro60kD, whereas one patient (3.3%) gave a positive result and 29 of the patients (96.7%) were negative for anti - SS - A/Ro52kD. About anti - SS - B/La we found that 19 of the patients (63.3%) were scored positive result for this antibody in addition to 11 patients (36.7%) who were negative in VL patients and 4 of the patients (13.3%) have those antibodies and 26 of the patients (86.7%) haven’t these antibodies in CL patients respectively. The anti - SS - A/Ro60kD, anti - SS - A/Ro52kD and anti - SS - B/La in leishmaniasis patients were highly significantly different at the level of (P?0.01), when compared between studied groups.5. VL cases showed a significantly different distribution of anti - nuclear antibodies (ANA) in compare with CL cases, especially; in Anti - Ku antibodies 24 (80%), anti - Mi - 2 antibodies 21 (70%) and anti - SS - B/La antibodies 19 (63.3%) respectively.6. The results of anti - nuclear antibodies level in patients with leishmaniasis like; anti - ds DNA, anti - nucleosome, anti - SmD1, anti - PCNA, anti - SS - A/RO 60, anti - SS - A/RO 52, anti - CNP - B were in high significantly different at the level of (P?0.01) and level (P?0.05) when compared between the groups, while the other autoantibodies like; anti - histone, anti - ribosomal P0, anti - Sc170, anti - U1 - snRNP, anti - AMA M2, anti - J0 - 1 and anti - PM - Sc1 showed no significant differences (P?0.01) between the investigated groups.7. The mean value of anti - cardiolipin IgG antibodies was increased substantially with highly significantly differences (P?0.01) in VL patients as compared with control group (8.123 vs. 1.959), also as compared with CL patients (8.123 vs. 2.402).

تقويم صفة تحمل بعض اصناف البطاطا المكثرة نسيجيا للجفاف على المستوى الجزيئي == Evaluation of Some Potato Varieties Grown In Vitro To Drought Tolerance At The Molecular Level

اسم المؤلف: هوازن حليم صالح
اسم المشرف: علي عبد الامير مهدي الصالحي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: درست استجابة اربعة اصناف من البطاطا Solanum tuberosum L. وهي (Lusa, Ambo, Arizona, Riviera)، استجابتها للزراعة النسيجية، وتقييم صفة تحمل الجفاف، كما اجريت التحاليل الجزيئية لتحديد البصمة الوراثية لها.اوضحت نتائج تجربة اختبار استجابة الزراعة النسيجية، ان ا | Four varieties of Potato (Solanum tuberosum L. Lusa, Ambo, Arizona and Riviera) were studied for their response to tissue culture and evaluation of the treatment of drought tolerance and molecular analysis. Results showed that the varieties differ in their response to growth, where as Arizona was the best variety in shoot tip culture and the survival percent (100%) and gave the highest average of branch length and number of leaves which were 9.810 cm, 8.100 leaf/ plant, while Riviera showed lower rate of survival and growth (40%). Riviera was excluded from the experiments. Cytokines and auxins were used in the following concentrations Kinetin (kin) with 2, 4 mg/L and Benzel adenine (BA) with interacted with Indoleacetic acid (IAA) at 1 or 2 mg/l or Napthalene acetic acid (NAA) at 0.5 or 1.0 mg/L in multiplication experiment. Arizona variety exhibited the highest length shoot, number of nods, number of leaves, root length, dry weight of roots, fresh and dry weights of shoots when using kinetin 2mg/L; interacted with NAA at 0.5 mg/L. while it showed a significant increase in the average of branches number, stem height, fresh and dry weights of shoot as well as the number of roots after treatment with using BA at 1 mg/L in combination with 0.5 mg/L (IAA). Drought tolerance of the studied varieties was studied by using Poly Ethlene Glycol (PEG) at the concentrations 20, 40, 60, 70, or 80 g/l. It showed that proline content was at its highest in Ambo variety reached 22.811 ? /g at the concentration 80 gm/L PEG. Arizona gave the highest mean in number of branches, number of nods, number of leaves, number of roots, under water stress conditions when the medium was supplemental with 20 mg/L PEG. Molecular analysis the studied varieties was conducted by using 6 primers. Results showed that the inheritance approximation between them, 0.314, 0.297, 0.273 for Lusa, Ambo and Arizona respectively. These results indicate that Rivera variety is genetically different from the others.

الكشف الجزيئي عن بكتريا Oxalobacter formigenes باستخدام جينات 16SrRNA، oxc في البراز من اشخاص اصحاء == Molecular Identification of Oxalobacter Formigenes Bacteria Based On 16S rRNA, Oxc Genes In Stool Samples Healthy Subjects

اسم المؤلف: طارق طلال خلف
اسم المشرف: زهرة محمود الخفاجي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: بكتريا Oxalobacter formigenes من مكونات المكنون البشري الميكروبي، تتغذى على الاوكزالات السامة وبذا تخلص الجسم منها. البكتريا سالبة لصبغة كرام، ولا تكون الابواغ ولاهوائية المعيشة، ويمكن عزلها من الغائط البشري، ولدراسة البكتريا من النواحي الجزيئية، تم جمع ع | Oxalobacter formigenes is one of the human microbiome, uses the toxic oxalate for their growth (Oxalotroph), and helps the body to get rid of excess oxalate. The bacterium is Gram negative, non - spore former, obligate anaerobe, and can be isolated from human stool.To carry out molecular studies on this bacterium, 50 samples of human stool were collected from subjects with wide range of ages (3 - 63 years) and different genders, subjects were healthy and have no medications and especially antibiotics for at least for 3 months. Genomic DNA was extracted with special kit, to amplify certain housekeeping genes, these are 16S rRNA (3' end) segment having the anti - Shine - Dalgarno sequence (ASD), and the oxc gene responsible for production of oxalyl - CoA decarboxylase (middle region responsible for active site at where the Thiamin pyrophosphate binds, the enzyme co - factor). It was possible to amplify the 16S rRNA gene in 46 sample out of 50 (92%), and 7 samples out of 50 (14%) for oxc gene. Analysis and alignments of 16S rRNA sequences put the Iraqi samples in the O. formigenes i.e., the same species depending on Distance Score of alignments, it has been found that ASD of bacteria is conserved and represented by the sequence " 5' CGCGGUGAACGUUCCCGGG3' " in the studied samples and in strains found in the International Databases. Segment of oxc (~ 600 bp) translated into proteins (190 - 194 amino acids) were aligned with oxc protein of O. formigenes (M77128) reference strain, it has been found that this segment similar to the TPP binding site and characterized by its high hydrophobicity

التحري عن طفرة JAK2V617F والمستويات المصلية لانزيمي الفوسفتيز القلوي واللاكتيت ديهايدروجنيز في مرضى ابيضاض الدم النخاعي المزمن == Detection of Jak2V617F Mutation And Serum Levels of Alkaline Phosphatase And Lactate Dehydrogenase In Chronic Myelogenous Leukemia

اسم المؤلف: استبرق اكرم بيرام الحسيني
اسم المشرف: عصام فاضل علوان الجمیلي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يعد مرض ابيضاض الدم النخاعي المزمن (CML) من الاورام النخاعية التكاثرية، وينشا نتيجة تكون جين Bcr - Abl (الذي يسمى كروموسوم فيلادلفيا) داخل الخلايا الجذعية المكونة للدم. يؤدي هذا الشذوذ الجيني الى تفعيل متواصل لانزيم التايروسين كاينيز وبالتالي نمو وتكاثر غ | Chronic myelogenous leukemia (CML) is a myeloproliferative neoplasm arises from Bcr - Abl gene translocation (called Ph chromosome) in hematopoietic stem cells (HSCs). This genetic abnormality results in constitutive activation of tyrosine kinase and subsequent uncontrol growth and multiplication of granulocytes. The cornerstone in treatment of CML are tyrosine kinase inhibitors, of which imatinib is the most effectively used. JAK2V617F mutation is an acquired single nucleotide polymorphism (SNP) occurs in JAK2 gene and is associated with many hematological malignancy other than CML. It was thought that the two genetic abnormalities (Bcr - Abl and JAK2V617F) occur mutually; however, growing body of evidences suggested the reverse. This study aimed to investigate the prevalence of JAK2V617F mutation associated with serum levels of alkaline phophatase (ALP) and lactate dehydrogenase (LDH) in Ph+ CML Iraqi patients treated with imatinib. A total of 43 Ph+ CML patients (25 males and 18 females, age range 16 - 80 years) who attend Iraqi National Center of Hematology for Research and Treatment/Baghdad were enrolled in this study. Each patient has been received at least six month therapy with imatinib. A consent form involving age, gender, height, weight, smoking status, residency and first family relative history of leukemia was obtained from each patient. Besides, blood samples were collected, from which the granulocytes were separated and then DNA was extracted using a ready kit. Two assays were used for detection of JAK2V617F mutation; real time polymerase chain reaction (qPCR) using specific primers and probe, and allele specific PCR (AS - PCR) using specific primers. Total white blood corpuscles (WBC) as well as serum levels of ALP and LDH were measured. qPCR assay revealed 5 patients out of 43 (11.62%) were heterozygous for the muatant allele of JAK2V617F mutation (genotype GT). The concentration of this allele ranged from 0.01% to 0.12%. None of blood sample gave positive result for AS - PCR assay. From the all risk factors, only gender had significant association with the incidence of JAK2V617F mutation. Average total WBC count, and serum levels of ALP and LDH were higher in JAK2V617F - positive patients (9042±1512.55, 146.05±8.028 IU/L and 204±10.85 IU/L respectively) than that of JAK2V617F - negative patients (6039±1772.239, 64.45±40.15 IU/L and 178.33±13.693 IU/L respectively) with significant differences. These results indicate that JAK2V617F mutation can occur simultaneously with Ph chromosome in CML patients, and qPCR is a highly sensitive method for the detection of this mutation. Furthermore, serum activity of ALP can be used as an indicator for the presence of JAK2V617F mutation in CML patients.

الدور الوقائي لبكتريا البفديس ضد خمج الفئران ببكتريا الاشيريكيا القولونية المنتجة لذيفان الشيكا == The Protective Role of Probiotic Bifidobacterium Against Mice Infection With Shiga Toxin Producing E.Coli O157 : H7

اسم المؤلف: سمر مصطفى محمد
اسم المشرف: شادان عباس الوانداوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Six Bifidobacterum isolates were isolated from fully breast - fed healthy infant faeces on reduced de Man Rogosa and sharp medium (MRS - C). Isolates identified on the basis of, colonial and microscopical properties, biochemical tests, and fructose - 6 - phosphate phosphoketolase enzyme (F6PPK) activity assay in cellular extracts. Carbohydrates fermentation profile used for identification of isolates to species level. All bacterial isolates diagnosed as Bifidobacterium genus where in this study B. adolescntis was the predominant species (50%), (B4, B5 and B6), followed by B. breve (B3), B. longum (B1) and B. dentium (B2) each one represent 16.67%.Bifidobacterium isolates were screened for their antagonistic effects against test organism, clinical isolate of shiga toxin producing E.coli O157 : H7 (STEC), using agar - well diffusion method. The isolates B3 and B6 showed clear inhibitory actions, 22 mm and 15 mm diameter of inhibitions zones, respectively. The rest of the tested isolates did not pronounce any inhibitory activity.B. breve in vivo antagonistic behavior and the possible protective effects against STEC was evaluated, using streptomycin treated murine model. Murine intestines was stably colonized orally with B. breve for 14 days, in conjunction mice were challenged orally with STEC, 103 CFU / mouse / day on day 8 of experiment. Bacterteriological analysis of mice faeces at time intervals, was indicated high levels of bacterial colonization were achieved in intestine by B. breve and STEC.Colonization of mice intestine by B. Breve did not inhibited STEC cells from proliferation during infection phase. Hence, the excretion level of STEC in faeces reached to 2.4 x 10 6 CFU/ g of faeces.STEC infected mice showed no severe clinical signs, characterized by hairloss, lethargy, paralysis of fore limbs, and shed of loose faeces. In the B. breve - colonized group, the mentioned clinical signs were almost completely inhibited, except the lethargic of some animals.Immunological studies showed an increase in the levels of sIgA by 2.7 - fold from that of blood IgA in B. breve - colonized mice while, reversed values were recorded in mice infected with STEC, blood IgA level was 1.95 - fold higher than that of sIgA.Histological changes in spleen, liver, kidney, and intestine tissues of mice were studied. The histological sections clarified the protective roles of B.breve, where no effective histological disorders were appeared in B.breve and STEC - colonized mice. In the STEC - infected mice, the pathological abnormalities within the kidney was the predominant, diagnozed as ulcers in the lining membranes, glomerular and tubular epithelium necrosis, without evidence of glomerular thrombi, mild damages was appeared in liver and spleen, and characteristic attaching and effacing (A / E) lesions appeared in the large intestine sections

الاصابة ببكتريا Helicobacter pylori وعلاقتها بمرض تصلب الشرايين القلبية == Correlation Between Helicobacter Pylori Infection And Atherosclerotic Heart Disease

اسم المؤلف: رواء سعدي سلمان
اسم المشرف: مي خليل اسماعيل
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: مرض قصور الشرايين التاجية هو النتيجة النهائية لتراكم اللويحات العصيدية ضمن جدران الشرايين التاجية مسببة نقص الاوكسجين وبالتالي حدوث مرض القلب الاقفاري. ويعتبر من الامراض الشائعة واحد الاسباب الرئيسية لحالات الوفاة في العالم. اضافة الى عوامل الخطورة التقلي | Coronary artery disease (CAD) is the end result of the accumulation of atheromatous plaque within the walls of the coronary arteries resulting in shortage of oxygen supply and ischemic heart disease (IHD). It was consider as one of the most common diseases and major causes of worldwide morbidity and mortality. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infectious agents may contribute to pathogenesis of CAD. The present study evaluated the anti - Helicobacter pylori IgG and IgA and the role of virulence factor of H. pylori cytotoxin associated gene (Cag A) and vacuolating associated cytotoxin (Vac A) as a risk factors for CAD.Eighty patients were divided into 2 groups : first group was 70 patients with CAD, the other group contained 10 patients with another coronary artery disease; they were admitted to Ibn Al - Bitar Specialist Center for Cardiac Surgery in Baghdad between October 2013 and January 2014. Ten individuals used as a healthy control group. All blood samples were tested biochemically such as glucose test, urea test, creatinine test and lipid profile test(cholesterol, triglyceride, LDL and HDL) and all of them showed normal results. The present study revealed that males were affected more than females (3 : 1); with no relation between their ages and bacterial infection.Serum IgG and IgA was Estimated by indirect immunofluorescent (IIF) whereas Cag A, Vac A and high sensitive C - reactive protein (hs - CRP) measured by enzyme linked immunosorbent assay (ELISA) and compared to control group results.The incidence of the anti - H.pylori IgG was highly significantly prevalent in CAD patients 78.57% (55/70), than in control group 0% (0/10), also a high significant difference in another CAD patient group 100%(10/10) as compared to control group 0% (0/10) (P? 0.01).Similarly anti - H. pylori IgA in CAD patients and another CAD patient groups showed highly significant increase when compared to control group 37.14% (26/70), 30% (3/10) and 0% (0/10) respectively (P? 0.01).The incidence of the CagA - positivity was significantly prevalent in mean value (2.74±0.19) in patients with CAD and another CAD patient group(2.72±0.31) than in control group (1.64± 0.16) (P? 0.05). Same result was observed with Vac A antigen; mean value of patient group showed significant increase (1.299 ± 0.04) when compared to controls group (1.41±0.13) (P? 0.05). Also significant increase found between another CAD patient group(1.79±0.17) and control group (1.41±0.13) (P? 0.05). Furthermore; the present study revealed significant differences of concentration levels between hs - CRP in CAD patient group (4.95 ± 0.38 µg/ml) as compared to control group (0.77 ± 0.06 µg/ml), as well as a significant differences found between another CAD patient group (3.96 ± 0.96 µg/ml) as compared to control group (0.77 ± 0.06 µg/ml) (P? 0.05).

دراسة تصنيفية لعويلة الخنافس البرغوثية Alticinaeمن عائلة Chrysomelidae ورتبة غمدية الاجنحة Coleoptera في بعض محافظات العراق == Taxonomic Study On The Flea Beetles (Coleoptera : Chrysomelidae : Alticinae) In Some Provinces of Iraq

اسم المؤلف: رغد عـبيد خضير
اسم المشرف: سعدون ابراهيم اسماعيل
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: علوم الحياة
الدرجة: ماجستير
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تناول البحث لهذه الرسالة دراسة تصنيفية لعويلة الخنافس البرغوثية Alticinae في بعض محافظات العراق، علما ان هذه العويلة لم تدرس تصنيفيا في العراق.اختير النموذج Longitarsus ballotae Marsham. لتجسيد صفات العويلة. ولقد درست الاجزاء الرئيسة للجسم وهي الراس والص | The Subject of thesis is a taxonomic study of Subfamily Alticinae in some provinces of Iraq. Knowing that this Subfamily has not been studied taxonomically in Iraq.Was chosen as the model for Longitarsus ballotae Marsham. To embody the gualities of the Subfamily. The detailed study of the head, thorax, abdomen and their appendages was made to evaluate the reliability of the external characters in classifying the species of the Subfamily.There are eight genera and thirteen species for these Subfamily The species are : - Altica deserticola Weise.Aphthona fuentei Reitter.Aphthona sp. Chaetocnema montenegrina Heikertinger.Chaetocnema persica Baly. Epitrix atropae Foudras.Hermaeophaga ruficollis Lucas.Longitarsus ballotae Marsham.Longitarsus membranaceus Foudras.Longitarsus reichei Allard. Longitarsus succineus Foudras.Phyllotreta nemorum Linnaeus.Podagrica fuscicornis Linnaeus.6 Species Register in Iraq are : - Chaetocnema montenegrina Heikertinger.Epitrix atropae Foudras. Longitarsus succineus Foudras.Longitaarsus membranaceus Foudras.Podagrica fuscicornis Linnaeus.Two species Taxonomic keys were designed and developed to is olate the genera of Subfamily Alticinae, sa wellas the genera mentioned and studied in this thesis for each species.

تاثير الادينوسين ثلاثي الفوسفات على اخصاب وتطور الاجنة الاولي خارج الجسم الحي في الفئران كنموذج للجنس البشري == Effect of Adenosine Triphosphate On In Vitro Fertilization And Early Embryonic Development In Mice As A Model For Human Being

اسم المؤلف: مهند علي مشكور
اسم المشرف: محمد باقر محمد رشاد فخر الدين | نوال خيري العاني
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان - الاجنة
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يعد الاخصاب خارج الجسم الحي (IVF) من احد اهم التقنيات المستخدمة لانتاج اعداد كبيرة من الاجنة لبحوث التطور الاساسيه والبيولوجيا الجزيئية لنضوج البويضات المختبري والاخصاب. يعتمد الاخصاب خارج الجسم الحي وظروف حفظ الجنين المثلى على مكونات الوسط الزرعي كونها ا | In vitro fertilization (IVF) is one of the most important techniques used to produce large numbers of embryos for research into the basic development and molecular biology of in vitro oocytes maturation and fertilization. Optimal IVF and embryo culture conditions depend on the composition of culture media being the most important determinants of success in vitro interaction of the gametes and subsequent embryo development. Adenosine 5 - triphosphate (ATP) is a fundamental factor to maintain life, by providing energy, and controlling the cell function and metabolism. Objectives : The present study aims to investigate the effect of ATP supplied to SMART medium on a rate of fertilization and early embryonic development (ED) in mice as a model for human beings.Materials and Methods : The female mice (90) were superovulated using superovulation program to produce a large number of oocytes. These were divided into three groups, the first group was inseminated with vassal sperm in vitro alone (control); the seconed group (G2) was inseminated with vassal sperm in vitro using SMART medium enriched with low concentration of ATP(1.25mM). The third group (G3) was inseminated with vassal sperm in vitro using SMART medium enriched with high concentration of ATP (2.5mM). Mouse spermatozoa were collected from both vasdeferens. Then sperm parameters were assessed after 30 min. IVF technique was performed for 3 groups, and assessed after 20 - 22h. Then, percentages of early embryonic development stages and abnormal embryos morphology (%) for each embryo stage were assessed.Results : Results of the present study revealed significant increment (P<0.05) in the in - vitro fertilization (%) when using 1.25mM ATP as compared to 2.5 mM ATP and the control group. Significant differences (P<0.05) in the 1 - cell stage were assessed in 2.5mM compared with 1.25mM groups and the control group. Also, Significant differences (P<0.05) in the 2 - cell and 4 - cell stage were assessed in 1.25mM ATP compared with other groups. However, non significant differences in the percentages of abnormal embryos morphology were reported between both treated groups of ATP.Conclusion : From the results of present study it was concluded that the low ATP concentration (1.25mM) enriched to the culture medium improved the percentage of in vitro fertilization and early embryonic development.

تقييم التعبير الجيني للجينات CK19, MGB, MUC1 microRNA - 195 and microRNA - let 7a في نساء عراقيات مصابات بسرطان الثدي == Evaluation of MGB1, CK19, MUC1, microRNA - 195 and microRNA - let - 7a Expression In Iraqi Women With Breast Cancer

اسم المؤلف: جودت نوري غائب
اسم المشرف: عبد الحسين مويت الفيصل
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: دكتوراه
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The present study aimed to shed light on the identification a panel of genes with distinct expression patterns in breast cancer patients as a useful tool for breast cancer early detection and progression. The present study designed to investigate the levels of genes expression of five genes panel (MGB1, CK19, MUC1, miR - let7a, and miR - 195) in circulating free mRNA and miRNA from blood of breast cancer patients versus noncancerous samples (benign tumor and healthy controls) to establish a biomarker panel potentially useful for early detection and progression of disease. The expression patterns of the identified genes were then compared with certain clinical features (age, lymph node status, and tumour size).Blood samples from 55 patients with different stages of newly diagnosed invasive ductal carcinoma were provided by certain Iraqi hospitals. Two control groups were used in this study; 10 samples of patients with benign breast tumors, and 20 samples from healthy donors. The samples preservation with TRIzol was done. Samples subjected to total RNA extraction, and then molecular study by using reverse transcription and real time PCR at Molecular Oncology Unit in Guy´s Hospital - Kings College / London.The study reached the following results : 1. The patients’ age range was 24 - 70 years and the median was 49 years with high frequency of patients in the range of 40 - 59 years. According to the family history, 50(90.91%) of patients were have negative family history. According to the clincopathological features (lymph node status and tumor size) the percentages of patients with multiple lymph nodes and tumor size 2.0 - 2.9 cm were the highest groups, which showed statistically highsignificant differences.2. For MGB1 gene expression, the result showed that 30(54.5%) patients were MGB1 - positive while 25(45.4%) patients were MGB1 - negative.According to malignancy status the percentage of patients with high level of MGB1 gene expression 22(40%) was significantly high. In correlation with age groups there was statistically no significant differences in the levels of gene expression with age. In correlation with clincopathological features, lymph node status showed that the highest percentage of MGB1 positive patients 18(66%) were multiple for lymph node status, and the tumor size results showed that there was decreasing in the MGB1 geneexpression with increasing of tumor size. 3. For CK19 the results of present study showed that 41(74.54%) patients were CK19 - positive, while 14(25.46%) patients were CK19 - negative.According to malignancy status the percentage of patients with high level of CK19 gene expression 30(54.45%) was significantly higher in compare with benign tumor patients and healthy controls. In correlation with age groups there was statistically no significant differences in the levels of gene expression with age. In correlation to the clincopathological features, lymph node status results showed that the highest percentage of CK19 positive patients 24(88.89%) were multiple for lymph node status, and there was increasing in the CK19 gene expression with increasing of tumor size.4. Mucin 1 (MUC1) gene expression results showed that the percentage of MUC1 - positive breast cancer patients 72.73%(n=40) was significantly higher when compared with benign tumor patients and healthy controls. According to the age groups the results showed no significant correlation with patients age groups. The clincopathological features results showed that the highest percentage of MUC1 positive patients 84.21%(n=16) have few lymph node status, and there was statistically significant association between the increasing of MUC1 gene expression and tumor size. 5. The miR - 195 gene expression results showed that the percentage of patients with positive miR - 195 gene expression 83.64%(n=46) was significantly higher than patients with negative miR - 195 expression 16.36%, the study also showed that the percentage of high miR - 195 expression samples 69.09% (n = 38) was significantly higher in compare with benign tumor patients and healthy controls. According to the clincopathological features, patients with multiple and few lymph node metastasis were found to have significantly the highest percentages of miR - 195 expression, while the tumor size results showed that there was increasing in the miR - 195 gene expression with increasing of tumor size. 6. The percentage of miR - let 7a - positive breast cancer patients 81.82% was significantly higher, when compared with miR - let 7a - negative patients 18.18%. In correlation to the clincopathological features, results showed no significant correlation in miR - let7a gene expression levels with patients age groups, for lymph node status, the results showed that the highest percentages of let 7a positive patients were those with multiple lymph node and few lymph node metastasis. The tumor size results showed that there was increasing in miR - let 7a gene expression with increasing of tumor size.7. According to genes combinations, three genes combination (CK19, miR - 195 and miR - let 7a) was significantly positively expressed with percentage of 60%(33/55), which reflect their potential diagnostic and prognostic value.8. The study concluded that the three genes combination (CK19, miR - 195 and miR - let 7a) may have potential applications as a diagnostic and prognostic markers for breast cancer.

تاثير بعض المستخلصات النباتية في معايير بيولوجية مختلفة للفئران == Effect of Some Plant Extracts On Different Biological Parameters On Mice

اسم المؤلف: عقيل حيدر عطا الله
اسم المشرف: مؤيد صبري شوكت
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: اجريت الدراسة الحالية للتحري عن المركبات النشطة الموجودة في المستخلص الخام المائي والميثانولي لاوراق الاس والنعناع والريحان ودراسة تاثيرها على فعالية انزيم الاسيتل كولين استريز ومستوى الدهون ومستوى السكر ومستوى انزيمات الكبد(ALP وSGPT وSGOT) ومستوى الانتر | The present study was conducted to investigate the active constituents found in aqueous and methanolic crude leaf extracts of Myrtus communis, Mentha piperita and Ocimum basilicum, and studies it effect on the acetylcholinesterase activity, levels of lipids, level of glucose, level of liver enzymes (ALP, SGPT and SGOT) and level of Interleukins (IL - 2, IL - 4, IL - 6 and IL - 10) in laboratory mice (in vivo). The results of the phytochemical analysis of the crude aqueous and methanolic extracts of Myrtus communis, Mentha piperita and Ocimum basilicum contain active compounds : Phenols, Flavonoids and Tannins and missing of Steroids and Coumarines in all extract but Saponins and Alkaloids found in alcoholic extract only, while terpens were present in Mentha piperita and Ocimum basilicum and absent in Myrtus communis. The results of administrating animals with different extracts showed no significant difference on blood Acetylcholinesterase (AchE) compared with ethanol liquid diet, while the alcoholic and aqueous extracts of M. communis, M. piperita and O. basilicum in the serum of decreased Acetylcholinesterase level significantly(p?0.05), liver and brain [(1.25 ?pH/30 min, 1.23 ?pH/30 min, 1.28 ?pH/30 min, 1.20 ?pH/30 min, 1.26 ?pH/30 min, 1.28 ?pH/30 min), (0.35 ?pH/30 min, 0.34 ?pH/30 min, 0.34?pH/30 min, 0.36?pH/30 min, 0.42?pH/30 min, 0.39?pH/30 min), (0.32?pH/30 min, 0.37?pH/30 min, 0.39?pH/30 min, 0.36?pH/30 min, 0.34?pH/30 min, 0.37?pH/30 min)] respectively compared with animals fed on ethanol liquid diet [(1.37 ?pH/30 min), (0.47 ?pH/30 min), (0.45 ?pH/30 min)] respectively. The methanolic and aqueous extracts of M. communis, M. piperita and O. basilicum reported a significant decrease in level of the total cholesterol and Low Density Lipoprotein (LDL) [(181mg/dl, 186mg/dl, 175mg/dl, 172mg/dl, 181mg/dl, 184mg/dl), (118mg/dl, 121mg/dl, 114mg/dl, 109mg/dl, 118mg/dl and 120mg/dl)] respectively, when compared with animals fed on ethanol liquid diet [(195 mg/dl), (132mg/dl) ] respectively while no effect was reported on High Density lipoprotein. The level of triglyceride reduced after the treatment with ethanol liquid diet, and then the level increased after the treatment with M. communis and O. basilicum extracts. The methanolic and aqueous extracts of M. communis, M. piperita and O. basilicum have led to a reduction in the level of glucose in the serum which increased after the treatment with ethanol liquid diet. Methanolic and aqueous extracts decreased the liver enzymes (ALP, SGPT and SGOT) significantly to the normal level (18, 17, 21, 18, 20 and 21) KAU, (19, 19, 16, 13, 17, 17) IU/L and (21, 24, 17, 15, 17 and 19) IU/L respectively after the increase by the treatment with ethanol liquid diet (24) KAU, (26) IU/L, (28) IU/L as compared to control (20) KAU, (12.2) IU/L, (13.5) IU/L, respectively. The level of Interleukin - 2 and Interleukin - 4 in the serum significantly increased in the treatment of alcoholic and aqueous extract of M. communis, M. piperita and O. basilicum [(18 pg /ml, 17 pg /ml, 20 pg /ml, 18 pg /ml, 20 pg /ml, 20 pg /ml), (100 pg/ml, 110 pg/ml, 119 pg/ml, 108 pg/ml, 90 pg/ml, 92pg/ml)] in comparison with ethanol liquid diet treatment [(14 pg /ml), (77 pg/ml)] respectively. While the level of Interleukin - 6 and Interleukin - 10 increased significantly in the serum, when animals were fed with ethanol liquid diet [(259pg/ml) and (501pg/ml)] respectively, and then decreased significantly after the treatment of methanolic, aqueous extract of M. communis, M. piperita and O. basilicum reported [(198 pg/ml, 202pg/ml, 202pg/ml, 201pg/ml, 214pg/ml, 217pg/ml), (370 pg/ml, 385pg/ml, 200pg/ml, 280pg/ml, 350pg/ml and 350pg/ml)] respectively.

التاثيرات المعدلة - مناعيا للمعززات الحيويه ضد بكتريا Salmonella enterica Serovar Typhimurium المعزولة من حالات الاسهال لدى الاطفال في ذكور الفار الابيض == Immunomodulatory Effects of Probiotics On Salmonella Enterica Serovar Typhimurium Isolated From Diarrheal Children In Albino Male Mice

اسم المؤلف: صفا خليل ابراهيم
اسم المشرف: عبد الواحد باقر الشيباني | علي حسين ادحيه
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: دكتوراه
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: This study aimed to determine the frequency of Salmonella Typhimurium and its multi - drug resistance (MDR) status as a diarrheal causative pathogen in children younger than five years old, as well as to investigate the role of four probiotic microorganisms(L.acidophillus, L.casei, S.cerevisiae, S.boulardi) in controlling such infection.For this purpose, 128 stool samples of patients (76 males and 52 females) was included in this study. They were children suffering from diarrhea and fever who admitted to the “Central Pediatric Hospital” in Baghdad during the period from April to September, 2012. Their ages ranged from six days up to five years.The immunological effects of probiotics and MDR S. Typhimurium isolate in the experimentally infected and probiotic - treated mice were investigated via assessing the level of ten cytokines (IFN - ?, IL - 1?, IL - 4, IL - 10, IL - 12, IL - 17A, IL - 21, GM - CSF, RANTES and IP - 10) in the lavage of small intestine. Accordingly, five groups of mice were used in the in vivo part of this study; Mice in group I received probiotic for 7 successive days, challenged with S. Typhimurium on day 8, and dissected on days 14 and 21. Group II wassimilarly treated, but the probiotic was continued for 14 days. Group III was given the probiotic only, and group IV was challenged with S. Typhimurium, while group V was the control.Results obtained in this study could be summarized as follows : 1. Out of 128 stool samples, S. Typhimurium was isolated and identified in 9 samples only (7.03%). All isolates were totally resistant to nalidixic acid, with the exception of one isolate which showed intermediate sensitivity.Furthermore, only one of these isolates (symbolized B) was found to be resistant to three antibiotics (ampicillin, amoxicillin and nalidixic acid).Therefore, this isolate was considered as an MDR isolate and selected for further experiments in the study.2. When the susceptibility of MDR S. Typhimurium isolate B was further assessed in vitro by using four probiotics (Saccharomyces cerevisiae, S. boulardi, Lactobacillus acidophilus and L. casei), results showed that S.cerevisiae and L. acidophilus were the most efficient by recording the highest inhibition zones (12.6 and 16.3 mm, respectively), therefore, they were further investigated for their anti - S. Typhimurium effects in vitro and in vivo. 3. By using the unconcentrated and (one - fold, two - fold, three - fold) concentrated filtrates of these two probiotics, it was found that the three - fold filtrates were most efficient in their antibacterial activity by recording the highest inhibition zones (25.0 mm for S. cerevisiae and 31.0 mm for L. acidophilus.4. Significant increases in the values of liver index were observed in mice of group I treated with L. acidophilus at 21 days (10.73%) compared to the corresponding group treated with S. cerevisiae (7.41%) or other four groups. For spleen, index value in L. acidophilus groups was higher than the corresponding groups in S. cerevisiae. Mice treated with a probiotic alone or in a combination with the pathogen showed significant increases in the spleen index values of all groups compared to the untreated mice (group V).5. Both probiotics were effective in reducing S. Typhimurium colony forming units per plate (cfu/plate) in the liver and spleen. In liver, mice in group IV showed a count of 224.4 cfu/plate, which was significantly higher than any count in groups of L. acidophilus and S. cerevisiae. Group II mice recorded better results than group I mice, while the lowest counts (21.6 and 27.8 cfu/plate for L. acidophilus and S. cerevisiae, respectively), were observed at day 21.6. The ten investigated cytokines showed different levels in the small intestine wash; such differences were subjected to the group of mice underinvestigation and type of probiotics used. In addition, variations in IFN - ?/IL - 4, IFN - ?/IL - 10, IL - 4/IL - 10 and IL - 17A/IL - 10 were also observed.

دراسة عدد من ملوثات الهواء وتاثيراتها البيئية في منطقتين مختارة من جانب الرصافة في بغداد == Study of Several Air Pollutants And Their Environmental Effects In Two Regions In Al - Rusafa Site In Baghdad

اسم المؤلف: شيماء هادي حمادي الدليمي
اسم المشرف: محمد نافع علي العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Several air pollutant concentrations such as Suspended Particulate Matter (SPM), carbon oxides (COx), sulfur dioxide (SO2), nitrogen oxides (NOx), methane (CH4), ozone (O3) and some heavy metals such as lead (Pb) , chromium (Cr), cadmium (Cd), and nickel (Ni). Were measured in selected areas of the Rusafa in Baghdad, Anda’lus square (as a commercial site) and Wazeria district (as industrial site).The results showed that the concentration of air pollutants from gases, SPM (NO2, CO, SO2, and SPM) and heavy metals (Pb, Cr, Cd, and Ni) were exceeded globally and locally permissible limits in both study sites, while the concentration of O3, CO2 were within the globally and locally standard limits in both study sites. Commercial site had recorded higher concentrations of (CO2, SPM, Pb) than those of industrial site. While the industrial site had more pollution with (NO, NO2, CO, CH4, Cr). Results showed a relationship between climate factors and air pollutants, where windspeed, temperature, and relative humidity had influenced on the concentration of air pollutants.Median Lethal Concentration (LC50) to nitrogen dioxide gas was identified, by exposing a community of 30 adult male mice. The mice weights were between 23 - 31gm and their age was 8 - 12 weeks. The mice were randomly divided into five groups (6 male of each group). The exposure periods were 20, 40, 60, 80, 100 minutes using different concentrations 50, 100, 150, 200 ppm.The results showed a higher mortality during 150 and 200 ppm concentrations, for exposure periods of 80 and 100 minutes, but other concentrations have not been recorded. LC50 was calculated 161.86 ppm for 80 minutes and 110.53 ppm for 100 minutes.

دراسة التاثيرات الحادة والمزمنة للمبيد العشبي - 4, 2 دايكلوروفينوكسي اسيتك اسد في نوعين من اسماك الكارب == Study The Acute And Chronic Effects of The Herbicide 2, 4 - Dichlorophenoxy Acetic Acid In Two Species of Carp Fish

اسم المؤلف: ضحى زكي السويفي
اسم المشرف: احمد جاسم محمد العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تضمنت الدراسة الحالية التاثيرات السمية الحادة والمزمنة لمبيد 2, 4 - d في نوعين من اسماك الكارب (الاعتيادي والعشبي)، استعمل في دراسة التاثيرات الحادة عدة لكلا النوعين قيد الدراسة وكانت ((170, 165, 160, 155, 145, 140, 130 و(140, 130, 115, 95, 70)ملغم/لتر ع | This study included acute and chronic effects of 2, 4 - d pesticide in two species of carp fish (Cyprinus carpio and Ctenopharyngodon idella) using several concentrations for the two carp fish species that were (130, 140, 145, 155, 160, 165, 170) and (70, 95, 115, 130, 140) mg/l respectively for 96 hours, to determine the median lethal concentration (LC50) and the behavioral changes was used as a standard of those effects. Whereas three concentrations (20, 40 and 60) and (10, 15, 25) mg/l respectively for the two carp species were used in the chronic exposure for six weeks. The behavioral, histological and hematological changes were used as a standard to observe these effects through the study period. The value of LC50 for common carp fish were 157.77, 157.25, 156.41 and 152.62 mg/l. For grass carp, LC50 were 115.92, 114.92, 112.94 and 96.52 mg/l for 24, 48, 72, 96 hrs of exposure to 2, 4 - d pesticide concentrations respectively.Behavioral changes were recorded more effects in high concentrations than in low concentrations. To discover the toxic effects of this substance on fish, many parameters were used. They included the clinical symptoms by erratic swimming, hyperactivity, loss of equilibrium with respiratory effects such as rapid gill movement and swam near the water surface. While in chronic effects, blood parameters were changed in Red Blood Cell R.B.C., White Blood Cell W.B.C., Packed Cell Volume P.C.V., Haemoglobin Hb and liver enzyme (GPT & GOT).Values elevated significantly according to the pesticide concentration (P?0.001) and exposure periods (P?0.05) in comparison with control. The histological examination of the gills, liver and kidney of the common and grass carp fish after chronic exposure to 2, 4 - d herbicide showed pathological changes and alterations such as fusion of the secondary lamella, epithelial lifting, blood congestion, epithelial hypertrophy of the lamellar epithelium and epithelial necrosis. In the liver, pathological changes were seen, including hepatocytes hypertrophy, cytoplasmic vacuolation, blood congestion and cellular necrosis. Degenerative changes of the renal epithelium, necrosis in renal tubules and occlusion of the tubular lumen where the pathological alterations in the kidney.

العلاقة بين متلازمة تكيس المبايض وهرمون المضاد لمولر وبرامج تحريض الاباضة عند اجراء عملية التمنية داخل الرحم

اسم المؤلف: عبير ناظم جاسم
اسم المشرف: محمد باقر محمد رشاد فخر الدين | صباح مهدي حسين
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: دبلوم عالي
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تعد متلازمة المبيض متعدد الا كياس هي من اكثر امراض الغدد الصماء شيوعا عند النساء حيث يصاب من النساء في سن الانجاب مايقارب (5 - 10%). الاعراض الرئيسيه لمرض متلازمة المبيض متعدد الاكياس هو اضطراب الدوره الشهريه مع فشل لاباضه وظهور اعراض زيادة الهرمون الذكر

التحري الجزيئي عن بعض التغيرات في الدنا المايتوكونديري للنطف لمرضى يعانون من وهن حركة النطف == Molecular Screening of Some Changes In Sperm Mitochondrial DNA In Asthenozoospermic Patients

اسم المؤلف: عدي عدنان مهدي
اسم المشرف: اسماعيل عبد الرضا عبد الحسن
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: من خلال البحوث والدراسات التي اجريت على اسباب وهن حركة النطف لدى الرجال الا انه هناك عدد من المسببات لم تحدد والى الوقت الحاضر. الا انه بالرغم من ذلك بعض الدراسات تشيربان العامل الوراثي يلعب دور في ذلك والمتمثل بعضيات المايتوكوندريا والحاوية على الدنا الم | Through researches and studies done on the causes of the asthenozoospermia in men, although there was no specific reason so far responsible for the infertility in people, but some of the studies were indicated that the genetic factors plays a role in the sperm dysmotility through the mitochondria that contained mitochondrial DNA responsible for providing the energy required for the sperm motility by production of ATP, which serve as the fuel that is consumed by sperm during motility. This study is conducted to determine the changes that could occur in the sperm mtDNA which included (common deletion, mtDNA copy number per cell and mutations in the ATPase8 and ATPase6 genes).This study was consisted of two parts as follow : The first part was consisted of two steps : The first step conducted on 71 samples from subjects suffering from the weakness of the movement of sperm and 12 samples from subjects who have a normal movement of sperm, total samples were 83 samples were divided patient samples into 5 groups depending on the percentage of the sperm motility under the classification adopted by the World Health Organization as well as a control group, that it has become 6 groups, these samples were subjected for investigation about the mitochondrial DNA deletions and mitochondrial DNA copy number by using real time PCR.On the other hand was taking 66 sample dispersed sample 56 patients and 10 healthy samples were subjected to the tests of ATPase6 and ATPase8 genes sequences for detection about mtDNA mutation.The second step was included the use of discontinuous gradient centrifugation (percoll) , which are 40 % and 80 % which represent both progressive and non progressive motile sperms, bringing the total samples 166 samples that collected and fractionated in a hospital, Kamal Al - Samarrai to treat infertility and IVF in Baghdad and examined for further molecular investigations for the period from February 2012 to October 2013.The second part was included the molecular tests that carried out after DNA extraction from the cells and this part include three steps : The first step was to investigate the common deletion in mtDNA where the results showed that the total number of deleted samples in the group (0 - 5) in the nonprogressive sperm was 81.25 %, which ranged between 6.8 - 74.7% while the ratio between the other groups 6 - 10, 11 - 15 , 16 - 20, 21 - 25 where were 75, 35.72, 28.5 , 36.3, and 12% for control group respectively. The second step was to investigate the sperm mtDNA copy number. The same groups where the results showed that the content of DNA in subjects with impaired movement of sperm was high compared with the control group where scored in some samples the highest level of gene expression 246.9 copies per cell in the group (0 - 5%) either other groups have shown lower levels were observed in groups (6 - 10) , (11 - 15) , (16 - 20) and (21 - 25) were 203.1, 180.7, 133.5 and 128.3 copies per cell, either the highest level of DNA content of the control group was 94.7 copies per cell, there was also a significant difference (P>0.05) between the normospermic motile isolated from 80% class and poor sperm movement isolated from 40 % class. The third step was included the detection of mutations by analyzing the sequences of the MT - ATAase8 and MT - ATPase6 genes which documented 59 mutations that were 23 missense and 36 silent mutations where all of them were heteroplasmic mutation except for a single mutation of the type missense (A8860G) which was homoplasmic mutation was noticed in all mtDNA copies of patients and control subjects also in progressive and non progressive sperm cells. Thought this current study novel nucleotides changes in MT - ATAase8 and MT - ATPase6 genes among groups where 3 novel missense mutations in MT - ATAase8 gene at positions (8378, 8483 and 8558), the changes of nucleotides bases were A>G, A>C, A>C and A>C respectively, replacing Asparagine to Aspartic acid, Leucine to Proline and Proline to Alanine respectively. Also two novel missense mutations were observed in MT - ATPase6 gene at positions nt (8822 and 9055) where the changes nucleotides were (C >T and G>A) that replaced amino acids (Serine to Phenylalanine and Alanine to Threonine) respectively. Silent novel heteroplasmic change as a transition substitutions in ATPase8 gene at position nt (8371) by replacing C>T without any changing in amino acid of protein. Results of this present study showed novel heteroplasmic silent mutations in ATPase6 gene at positions nt (8899, 9048 and 9060) nucleotides changes (C>T, T>C and C>A) respectively, without changing in amino acid of protein which were observed in infertile group

تشخيص بكتريا Neisseria gonorrhoeae بالطرق التقليدية والجزيئية في المرضى الذكور ودراسة مدى تاثيرها في حدوث الحذوف في موقع AZF == Conventional And Molecular Diagnosis of Neisseria Gonorrhoeae In Male Patients And Study Its Suspected Effects In Microdeletions In Azf Locus

اسم المؤلف: غزوان علي مسلم الرماحي
اسم المشرف: عبد الرضا عبد الحسن اللامي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: This study includes 82 clinical samples from male patients suspected to have gonorrhea (urethral discharge with dysuria). Two types of samples were collected from each patient, urethra swab and blood samples from patients who attended Al - Yarmouk teaching hospital in Baghdad city, Clinics and private laboratories during a period from December 2012 to April 2013. All of them were married and have children's, and 20 samples were taken from apparently healthy subjects.Cases caused by gonococci were diagnosed by finding the Neisseria gonorrhoeae bacteria in the samples using microscopic examination and culturing on rich media chocolate agare for growth bacteria and selective media modified Thayer martin agar (MTM) contact antibiotic to prevent growth of all the types of bacteria except N. gonorrhoeae.Microscopic examination using specific kit for gram stain, showed gram negative diplococcus, like bean shape. Culturing on rich media revealed that 82 (100%) samples positive but re culturing on Modified Thayer martin media revealed that 76 (92.68%) out of 82 positive. Then biochemical test had the same results.Results of the molecular diagnosis of the bacteria causing gonorrhea using specific primers that were specific for the Orf1 gene, revealed that 80.26% of samples (61 out of 76) were positive. Results of the microdeletion in Y chromosome AZFc region revealed that no microdeletion were occurred in SY - 254 STS and BPY - 2 gene.This study, provided high specificity and sensitivity for the diagnosis of gonorrhea using PCR technique which is cheaper and faster than traditional methods. Also, PCR - based method for detection of N.gonorrhoeae can be readily used in hospitals and laboratories.

دراسة امكانية الاستفادة من تركيز بروتين المصل الفعال نوع سي بروتين التفاعلي CRP في التشخيص المبكر للاصابات البكتيرية لحديثي الولادة وتحديد توقف اعطاء العلاج من خلاله == The Study of Usefulness of C - Reactive Protein Concentration In The Early Diagnosis And Determining The Duration of Antibiotic Therapy of Suspected Neonatal Bacterial Infection

اسم المؤلف: قاسم ابراهيم حسين
اسم المشرف: ايمان ناطق ناجي البياتي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: ان التشخيص السريع لاصابات تجرثم الدم في الاطفال حديثي الولادة من الامور المهمة وذلك لخطورة الاصابة المؤدية الى الموت.الغرض من دراستنا هو امكانية استخدام فحص سي - البروتين الفعال في التشخيص المبكرلهذا المرض البكتيري وكذلك استخدامه في تحديد نقطة التوقف عن ا | Rapid diagnosis of bacterial infections of newborn infants is very important itcause of morbidity and mortality. Aim of the studyThe aim of the studyis to examin the possibility of using C - reactive protein in the early diagnosis of neonatal sepsis, as well as its use in determining thestop point of the antibiotic treatment.Patent, Materials and methods This study was conducted at the Hospital of Ibn - Albaladi for children and women in Rusafathe Healthoffice / Baghdad.Iraq from February 2013 to February 2014.The number of patients with bacterial infection was 102 (62%) of the total number of patients (165) who were admitted to the neonatal care unit aged less than 28 days and their weights was more than 1500 g,. The number of males was 92 (56%) and the number of females was 73 (44%), the number of patient withearly onset sepsis EOS (less than three days) was 43 (42%) and with late onset sepsis LOS for (more than three days) was 59 (58%), 43 (57%) ofEOSwas normal deliveries infected and cesarean deliveries infected 33 (43%), while51 (57%) of LOS was normal deliveries infected and cesarean deliveries in LOS was 38 (43%). Blood samples were collected and divided into three portion : bloodculture, CRP andhematological profile.1 - Blood culture.Blood was collection from neonatal sepsis patientinto special blood culture bottle and incubate in bact /Alert 3 D device when growth of bacteria then subcultured on blood agar, MaCconkey agar, and incubatedusingvitek /2 to diagnose bacterial infection anddeterminetheir susceptibility to antibiotic treatment.ResultThe Compact results indicated that 63 (38%)of patient were negative and 102 (62%) were positive out of them 23 patients (22.6%)were infected with gram negative bacteria including {Klebsiella pneumonia 30%, Acinetobacterlowffi 17%, Enterobacter cloaca 13%, } while 79 (77.4%) were infected with gram positive bacteria including { staph Homins and staph hemolyticus each 28% then staph epidermidis 13% and staph aureus 10%, while strep spp was 6% }. 2 - c - reactive protein.It was done by twomethod for the same samples in order to characterize the accuracy of the diagnosis. The first method was agglutination test (method 1) the cut off value for positive result ? 6 µg % 79 (48%)were negative, while 86 (52%) werepositive, while the second method was immune test (method 2) µµµusing Nycocard device werethe cut off value for positive result ? 5 µg % the results 102 (62%) were positive while 63 (38% negative.3 - hematological profile.The hematological profile of our patient included PCV, WBC, neutrophil, lymphocyte, monocyte, count were measured using Emerald automated Hematology device. The results of these tests werenot compatible with the results of the blood culture, but normal result were compatible with negative blood cultures. The results adopted of blood culture confirm the presence of bacterial infection and then compared with theresults CRP test and blood profilefor the same samples.Negative result of blood culture and CRP test were 54 (33%) while positive results of blood culture and CRP test were recorded and improved after taking treatment for (, 3, 5, 7,) days for (40, 31, 5)patients respectively.ConclusionWeconcluded C - reactive protein test was useful in the diagnosis of bacterial blood infections and determine the stop - point otreatment. Gram negative bacterial isolates were sensitive impinim, livofloxacin and Amikacin while they were resistant to Ampicillin, Ampicillin /Sollbectam and Gentamycin. on the other hand gram positive bacteria were sensitive to Amikacin, Ampicillin/sulbactam Ciprphloxacin, and Tigecyclin and were resistant to Erythromicin, and Oxacillinand Benzylpencillin.

تحديد شدة الاصابة الحادة والمزمنة لداء المقوسات الكوندية بواسطة مستويات (IL - 6, IL - 8, TNF - ?) == Determination of Acute And Chronic Toxoplasmosis By Estimation of IL - 6, IL - 8 And TNF - ? Levels

اسم المؤلف: لينا قاسم كاظم الزهيري
اسم المشرف: بان نوري القاضي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: المقوسات الكونديه من الطفيليات الشديده النجاح في انشاء اصابة مزمنه طويلة الامد. وقد اجريت الدراسة الحاليه على 366 امراة (117 مجهضات، 141 حوامل، 108 غير متزوجات) جمعت من مستشفيات مختلفة في بغداد. جمعت عينات الدم لجميع المجاميع المدروسة خلال الفترة مابين تش | Toxoplasma is a highly invasive parasite which establishes a life - long chronic infection. The present study was performed on 366 women (117 miscarriages, 141 pregnant and 108 singles) aged (17 - 35) years old from different hospital in Baghdad. Blood samples were collected from all patients during the period of Oct.2013 until of Jan. 2014. Anti - toxoplasma antibodies in the sera of all samples by using two tests, Latex test (LAT) and ELISA (IgG), (IgM) while, the proinflammatory cytokine were estimated by evaluation of the cytokine such as (IL - 6, IL - 8, TNF - ?). The results were showed that : ? The infection rate of toxoplasmosis by LAT was (41.53%) which was more sensitive than ELISA IgG (36.85%), and miscarried women were diagnosed by higher anti - toxoplasma IgG antibodies 62/117(52.99%), while pregnant result were lower 30/108 (27.78%). ? The most frequent age group of chronic infection with T.gondii was (23 - 28) year in both miscarriage and pregnant women, and represented by 45.16%, 40% respectively. While the most frequent age group for a single woman was (17 - 22) years, and represent 46.511% of the total number of this group.? Seroprevalence of toxoplasmosis by ELISA IgM test revealed low sensitivity in different studied groups 25/366(6.830%), and miscarried women were diagnosed by a highly significant (P ?0.01) percentage of acute toxoplasmosis14/117(11.965%).and The age group of (17 - 22) years old diagnosed high significant (p?0.01) percentage of acute toxoplasmosis in all studied groups.? According to the distribution of infected miscarried women with toxoplasmosis and gestational age by ELISA IgM the result showed that most of miscarriages were occurred at the first trimester which considered high significant (p? 0.01) 8/14(57.42%). While, chronic infected women at the second trimester (4 - 7 month) diagnosed by significantly (P?0.01) higher percentage of miscarried 24/62(38.71%).? The level of pro - infalmmatory cytokine (IL - 6) in acute infected miscarried women with toxoplasmosis distincted with a significantly high increase (P? 0.05) (177.31±12.53 Pg/ml) in comparison to chronic infected one (119.36 ±14.07 Pg/ml).While, chronic infected pregnant women was low significantly (P ?0.01) (48.41± 2.79 Pg/ml) in comparison to acute infected one and other studied groups, ? The acute infected singles was (118.98± 15.68 Pg/ml) higher non - significantly (P?0.05) than chronic infected one (112.65 ± 17.91 Pg/ml) and both disease activity were significantly higher than its level in healthy singles.? The level of TNF - ? in acute infected miscarried women distincted with significantly higher (P?0.05) (97.46 ± 5.37 Pg/ml) in comparison to chronic infected women (69.55 ± 4.58 Pg/ml), Whereas the mean level of TNF - ? in pregnant infected women during acute phase (62.31 ± 3.82 Pg/ml) was significantly (P?0.05) higher than chronic infection (21.42 ±2.74 Pg/ml)? Single infected women showed high significant increase (P?0.05) of TNF - ? level (50.48 ± 7.42 Pg/ml) in comparison to chronic infected one (35.46± 5.36 Pg/ml) and both disease activity scored high significant increase (P?0.05) of TNF - ? in comparison to healthy singles (18.29 ± 1.02 Pg/ml).? Finally, the mean level of IL - 8 in miscarried women with positive infection with T. gondii during acute phase (187.92 ± 15.38 Pg/ml) was significantly (P?0.05) higher than chronic phase of infection (140.57 ± 13.87 Pg/ml).Whereas the mean level of IL - 8 in acute infected pregnant women (110.32 ± 9.13 Pg/ml) was higher significantly (P?0.05) than healthy pregnant (91.49 ± 7.59 Pg/ml) and healthy singles (88.82 ± 5.62 Pg/ml).? Infected single women showed highly significant (P?0.01) increased levels in both diseases activity in comparison to single women without infection (88.82± 5.62 Pg/ml).

دراسة التاثيرات السمية للـ Gliotoxin المنتج من العفن Aspergillus fumigatus باستخدام تخمرات الحالة الصلبة == Study Toxicity Effects of Gliotoxin Produced By Aspergillus Fumigatus Using Solid State Fermentation

اسم المؤلف: محمد عادل نوري
اسم المشرف: عبد الكريم جاسم هاشم
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم اختبار قابلية عشرة عزلات للعفن Aspergillus fumigatus على انتاج الغليوتوكسين بوساطة تخمرات الحالة الصلبة وباستخدام الرز كوسط زرعي (ركيزة). اشارت نتائج الغربلة ان العزلة AF - 5 كانت هي الافضل واعطت اعلى انتاجية.كانت الظروف المثلى لانتاج السم على وسط الر | The ability of Ten Aspergillus fumigatus isolates for gliotoxin production were screened by solid state fermentation (SSF) using rice medium as substrate. The results indicated that, the AF - 5 isolate was the highest gliotoxin producer.The optimum conditions for gliotoxin production by AF - 5 isolate on rice medium were : - inoculum size 6×106 spores, moisturizing ratio (5 : 1) (w : v) with distilled water and incubation at 37 ?C for 10 days. Gliotoxin was purified from crude extract of AF - 5 isolate after production under the optimum conditions using solid state fermentation SSF. Purification of gliotoxin was achieved by two steps including : filtration and solid phase extraction. These processes were accessed to remove debris from crude extract and gives pure gliotoxin. The gliotoxin concentration was (122.6 ppm), which was detected by Thin layer Chromatography and High Performance Liquid Chromatography.The result of cytotoxicity effect of both purified extract and standard gliotoxin on human lymphocytes with exposure time of 24 hours at four different concentrations 25, 50, 100 and 200 ppb showed growth inhibition percentage 21, 39.10, 61.99, 87.45% and 17.89, 34.92, 58.34, and 85.22% respectively. The cytotoxicity effects have been done using conversion of the MTT to MTT formazan. After DNA was extracted from lymphocyte treated with toxin and analyzed by electrophoresis on a 1% agarose gel, gliotoxin appeared to have ability to damage the DNA. Results showed that both growth inhibition and DNA damage were increased gradually with the increasing of gliotoxin concentration.

تحديد بعض المعادن الثقيلة والتلوث البكتيري في الحليب الخام والمستورد المجفف == Determination of Some Heavy Metals And Bacterial Contamination of Raw And Imported Powder Milk

اسم المؤلف: مروة صباح طالب
اسم المشرف: محمد نافع علي العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: النبات
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: يتعرض الحليب للعديد من الملوثات الفيزيائية والكيميائية والبيولوجية وذلك بسبب طرق الانتاج واسلوب النقل وعمليات التسويق ومن هذه الملوثات المعادن الثقيلة والرقم الهيدروجيني ودرجة الحرارة والبكتيريا. وقد صممت الدراسة الحالية لفحص عينات للحليب الخام التي جمعت | Milk is subjected to various physical, chemical and biological pollutants duo to producing, transporting and marketing processes such as certain heavy metals, pH, temperature and bacteria. The current study was designed to examine fresh milk samples were collected randomelly at early morning from six different locations at a rate of once each month during study period which commenced in October 2013 and ended in march 2014 and powder milk brands which were examined again for six months as in case of fresh milk where these milk brands were collected from local markets each month. The results of heavy metals showed that : • The investigation of Lead content in raw milk revealed that the highest mean value (1.801±0.311 ppm) was scored in Abo - Ghraib sample and the lowest mean value (0.941±0.104 ppm) was observed in Ghazaliya sample. For the Cadmium content in raw milk that the highest mean value (1.532±0.124 ppm) was found in Abo - Ghraib sample and the lowest mean value (0.063±0.044 ppm) was found in Fal'loga. The Copper content in raw milk also investigated and resulted the highest mean value was (0.931±0.092 ppm) in Azizia milk sample and almost similar value (0.931±0.301 ppm) was found in Madain sample while the lowest mean value was (0.308±0.029 ppm) in Fal'loiga sample. The highest mean value of Potassium in raw milk was recorded in two samples in Azizia (9718.8±246.6 ppm) and (9718.3±482.2 ppm) in Abo - Ghraib but the lowest mean value (4156.3±268.3 ppm) was recorded in Essaouira. Regarding Sodium content in raw milk, the results have found that the highest mean value was (2968.8±312.2 ppm) in Essaouira sample while the lowest mean value was (1432.5±156.8 ppm) in Abo - Ghraib. The Chloride content in raw milk samples, the highest mean value was (3053.0±128.6 ppm) recorded in Fal'loga sample and the lowest mean value was (639.0±198.4 ppm) was found in Azizia sample. Analysis of variance of these data showed significant effects (P?0.001) of both sampling sites and collecting months on milk (pb, Cd, K, Na and Cl) contents while analysis of variance of these data reveals no significant impact of sites on milk Cu content (P> 0.05) where no differences were observed between mean value of different collecting sites but shows highly significant (P? 0.001) effects of collecting months.• While powder milk has shown that the highest mean values of Lead (1.225±0.052 ppm) were found in Al - Mudhish brand and the lowest mean value (0.088±0.002 ppm) was detected in Anchor. The highest mean Cd value was (0.184±0.005 ppm) in Nido brand and the lowest mean value was (0.069±0.003 ppm) in Altunsa sample. While the highest mean value of Copper was (1.656±0.254 ppm) in Dielac powder brand and Anchor milk brand had the lowest copper mean value which was (0.767±0.014 ppm). The concentration of Potassium was (9625.0±462.9 ppm) which is the highest recorded in Dielac milk sample and the lowest mean value (3356.8±225.6 ppm) was found in Al - Marai milk sample. While the highest average of Sodium was (2625.0±342.6 ppm) scord in Dielac brand and the lowest average was (1745.0±338.4 ppm) recorded in Al - Marai sample. The highest mean value of Chloride (193.0±41.0 ppm) was recorded in Nido milk brand and the lowest mean value (122.7±22.2 ppm) was found in Altunsa milk sample. However, analysis of variance shows significant differences (P?0.001) between examined milk brands while no such differences were found between these brands (P>0.05) regarding collecting months.From the above results, it seems that the highest content of (Pb, Cd and Cu) are higher than those of standards of the International Dairy Federation (IDF) while contents of (K, Na and Cl) are within the standard requirement according to National Research Council (NRC).Microbial tests of raw milk samples were positive for bacterial growth, as different bacterial species were observed such as Lactobacilli spp. 63.8%, Streptococcus spp. 61.1%, Staphylococcus aureus 44.4%, Escheritia coli 88.8%, Bacillus spp. 72.2%, Salmonella typhi 72.2%, Staphylococcus epidermidis 30.5%, Pseudomonas spp. 47.2%, Micrococcus spp 27.7%, Clostiridia spp. 66.6%, Enterococci spp. 11.1% and K. pneumonia 75% from bacterial contamination of raw milk samples.However, only (11.1%) of the total collected samples of raw milk were suitable for human consumption and (88.9%) unsuitable, indicating that the source of infection or contamination of milk may be due to the animal health, human handler and the environmental factors, e.g., contaminated vessels, polluted water, flies and dust, etc… Obviously, bacterial contamination test of powder milk samples was carried out and negative results were obtained. However, it seems clearly that the opportunity of finding bacterial contamination in powder milk samples may be very rare since milk powder is produced in well designed and modern techniques. Nevertheless, a single bacterial contamination test has indicated to a positive growth of Staphylococcus aureus colonies.
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