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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

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
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: زهرة محمود الخفاجي
اسم المؤلف: طارق طلال خلف

تاثير المستخلص المائي الخام لنبات الزنجبيل Roscoe officinale Zingiber على بعض الجوانب الدموية والتناسلية في الفئران الحوامل Effect of Crude Aqueous Extract of Zingiber Officinale Roscoe On Some Hematological And Reproductive Aspects In Pregnant Mice

المستخلص: اجريت هذه الدراسة للتعرف على مدى تاثير المستخلص المائي الخام للزنجبيل Zingiber officinale Roscoe (الطازج، اوالجاف) على الفئران الحوامل المجرعة عن طريق الفم وبالتراكيز (284، 568، 1136، 1420 ملغم/ كغم) اثناء مراحل الحمل المختلفة (المبكرة والوسطية والمتاخرة | This study was designed to investigate the effect of the crude aqueous extract of ginger (Zingiber officinale Roscoe) (fresh or dry) on pregnant mice orally administered at doses (284, 568, 1136, 1420 mg/kg) during different durations of pregnancy (early, intermediate, and final) for a period of 7 days for each duration. The study showed that there was no significant difference in the average weights of the animals at (P < 0.05) after treatment with (dry or fresh) extract at doses (284, 568, 1136 or 1420 mg/kg) comparing with the control group.The parameters of blood in the early duration of pregnancy showed a significant decrease in the average of hemoglobin (Hb) at (P < 0.05) after treatment with (fresh or dry) extract at the doses (568, 1136, 1420 mg/ kg), while the average of packed cell volume (PCV), demonstrated a significant decrease after treatment with fresh extract at doses (284, 568, 1136, 1420 mg/kg), and at (568, 1136, 1420 mg/kg) after treatment with dry extract at (P < 0.05) : The average of red blood cells (R.B.C.) after treatment with (fresh or dry) ginger extract, at (P < 0.05) showed a significant decrease at doses (284, 568, 1136, 1420 mg / kg), while the average mean corpuscular hemoglobin (MCH), and the average mean corpuscular volume (MCV) at (P < 0.05) revealed a significant increase and at doses (568, 1136, 1420 mg/kg) after treatment with dry extract, at doses (1136, 1420 mg/kg) for the average of (MCH), at doses (568, 1136, 1420 mg/kg) for the average (MCV) after treatment with fresh extract, while the average Mean corpuscular hemoglobin concentration (MCHC) did not show any significant difference at (P < 0.05) after treatment with (fresh or dry) extract comparing with the control group.The parameters of blood in the intermediate duration of pregnancy showed a significant decrease at (P < 0.05) in the average of (Hb), (PCV) and (R.B.C.) at doses (284, 568, 1136, 1420 mg/kg) after treatment with fresh extract, while dry extract demonstrated a significant decrease in average of (Hb) and (PCV) at doses (568, 1136, 1420 mg/kg), and a significant decrease in the average of (R.B.C.) but at doses (284, 568, 1136, 1420 mg/kg), while the average of (MCH) and (MCV) showed a significant increase at (P < 0.05) and at doses (568, 1136, 1420 mg/kg) after treatment with (fresh or dry) extract, while the average of (MCHC) did not showed any significant difference at (P < 0.05) after treatment with (fresh or dry) extract comparing with the control group.The parameters of blood in the final duration of pregnancy revealed a significant decrease (P < 0.05) in the average of (Hb), (PCV) and (R.B.C.) at doses (284, 568, 1136, 1420 mg/kg) after treatment with (fresh or dry) extract, while (MCH) showed a significant increase at (P < 0.05) and at doses (568, 1136, 1420 mg/kg) after treatment with (fresh or dry) extract, (MCHC) did not demonstrated any significant difference at the level (P < 0.05) after treatment with (fresh or dry) extract at all doses, while (MCV) showed a significant increase at (P < 0.05) and at doses (284, 568, 1136, 1420 mg/kg) after treatment with fresh extract, and at doses (568, 1136, 1420 mg/kg) after treatment with dry extract comparing with the control group. The results showed a significant decrease at (P < 0.05) in the average of diameters of ovarian and corpus luteum after treatment with (fresh or dry) extracts in the early and final durations of pregnancy at doses (568, 1136, 1420 mg/kg), and in the intermediate duration after treatment with (fresh or dry) extract but at doses (284, 568, 1136, 1420 mg/kg) comparing with group control.As for the concentration of the hormone estrogen (? - estradiol) didn’t demonstrated a significant difference at (P < 0.05) during different durations of pregnancy after treatment with (fresh or dry) extract at all doses, whereas progesterone showed a significant decreased at doses (284, 568, 1136, 1420 mg/kg) in all durations after treatment with (fresh or dry) extract comparing with the control group. Using doses at (284, 568, 1136, 1420 mg/kg) with (fresh or dry) extracts revealed a significant increase at (P < 0.05) in the average number of infected follicles in the all durations of pregnancy comparing with the control group. The results showed that there are no significant difference in the lengths of the embryos during intermediate and final durations at (P < 0.05) after treatment with (fresh or dry) extract at all doses comparing with the control group.There are also histopathological changes in the ovary, uterus and placenta included degeneration in ovarian follicles, necrosis, congestion, hemorrhage, edema, vasodilatation and rupture in blood vessels at different using doses.These findings indicated that the treatment with (dry and fresh) extract at doses (568, 1136 or 1420) mg/ kg harmful on pregnancy in different durations (early, intermediate, and final) , also the using of fresh ginger more harmful than dry ginger.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الدرجة: ماجستير
الموضوع الدقيق: الحيوان
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: محمد عبد الهادي غالي
اسم المؤلف: رغد خالد موفق مسلم

التاثيرات النسجية والدمية وبعض النواحي الوظيفية لعقار البيروكسيكام في ذكور الفئران البيض Mus musculus Histological And Hematological Effects And Some Physiological Aspects of Piroxicam In Male Albino Mice Mus Musculus

المستخلص: The current study aimed to detect the effect of Piroxicam in making behavioral, hematological and physiological changes in the kidneys of adult male albino mice Mus musculus, The present study also included measuring the diameters of glomeruli, proximal and distal convoluted tubules as well as the histopathological study.A total number of (128) adult male albino mice were utilized in this study, they were randomly distributed into four main groups, the first three groups were orally treated with concentration (50, 100, 150) mg/kg respectively, the forth group considered as control group were orally treated with (0.1) ml of distilled water for eight weeks, the samples were collected every two weeks for the histological study, blood samples were withdrawn for the hematological and physiological studies.The current study showed that there were behavioral changes observed on the experimental animals, represented by reluctance to food intake, lethargy, tremor, introversion, fast breathing, change in eye’s color and blackened feces, and the intensity of these symptoms increases with the increment of concentration and administration period.The statistical study results revealed that there was significant decrease at (P<0.05) in the mean numbers of red blood corpuscles, hemoglobin concentration and the percentage of packed cells volume in orally treated groups with (50, 100, 150) mg/kg for (6, 8) weeks of administration in comparison with control group, as for the white blood cells the statistical results for this study showed significant increase (P<0.05) in their mean number in treated groups with concentration (100, 150) mg/kg for (6, 8) weeks of administration compared to the control, whereas the groups treated with concentration of (50) mg/kg showed no significant changes along the administration period.Also all the concentrations showed significant differences (P<0.05) in the mean concentration of urea, creatinine and potassium ion in the blood serum of orally treated mice at the last weeks of administration in comparison with the control group.The statistical results of the present study also revealed that there were significant differences (P<0.05) in the mean diameters of renal glomeruli of the treated groups with concentration (50, 100, 150) mg/kg for eight weeks while there were non - significant differences in other periods, also there was non - significant decrease in the mean diameters of proximal convoluted tubules in the treated groups with concentration of (50, 100, 150) mg/kg in all periods except the period four weeks it showed a significant decrease (P<0.05) in the mean diameters of proximal convoluted tubules of the groups treated with the concentration (100, 150) mg/kg in comparison with control group. The statistical results also clarified that there were significant differences (P<0.05) in the mean diameters of distal convoluted tubules of the treated groups with concentration (100, 150) mg/kg for six and eight weeks of administration, while the group treated with concentration (50) mg/kg had no significant differences over the whole administration period.The study also recorded the presence of histopathological symptoms in the kidneys of treated mice with the dose (50)mg/kg represented by hemorrhage, vascular congestion, calcium casts formation inside the lumens of renal tubules, while the groups treated with (100)mg/kg of the drug showed a fibrin deposition inside renal tubular lumens, infiltration of inflammatory cells, cytoplasmic vacuolation in the epithelial cells of the renal tubules, and sloughing epithelium of renal tubules, while in the medullary region, there were epithelial cells atrophy in the renal tubules. The histological examination of mice kidneys treated with (150) mg/kg showed the appearance of hyalinization, shrinkage and complete loss of glomeruli, Pyknosis of nucleus and fibrosis around the blood vessels as well as the presence of oedema which occupied a large area of the kidney tissue
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: الحيوان - الانسجة
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: انتظار محمد مناتي
اسم المؤلف: بشرى عمر احمد معروف

تقييم نوعية المياة الصناعية ووحدات المعالجة لمعمل النسيج القطني في الكاظمية Evaluation of The Industrial Wstewater And Treatment In Al - Kadhimia Cotton Weaving Industry

المستخلص: This study includes two axis, the first one determined the physical and chemical characteristics for several concentrations of industrial wastewater of cotton textile factory, that located in Al - Kadhmiya, which are disposable to the main assembly in the treatment unit (first unit) of the factory ; Also the final water quality was evaluated after the treatment in the fourth unite and compared with normal environmental averages (or compared with acceptable limits for discharged.The second axis of this study assessed the efficiency of the physical and chemical treatments in the third unit, and also the biological treatments in the fourth unit through detecting the removal percentage for each stage of the treatment to evaluated the treatment unit efficiency of this factory. Samples were collected from four treatment units for six month, single sample was collected per two weeks.The (local, field) tests were assessed for the collected samples including (Temperature, PH, DO and EC, while the laboratory tests included TSS, TDS, BOD, COD, oil and grease, So4 - 2 and heavy metals such as Pb, Zn and Cr).The results showed that the temperature values were with (normal range) acceptable limits (22.3C?) in the first unit and (19.8C?) in the fourth unit; PH values also were within normal limits in the almost treatment units (neutral), however, the electrical conductivity average was 3123?c/cm in the first unit, and 1101 ?c/cm in the fourth unit ; Moreover, the average values of COD were 580 mg/L in the first unit and 163 mg/L in the fourth unit. The removal percentage was 41% in the primary sedimentation in thesecond unit while it was 36% in the third unit for biological treatment.The BOD values were 487 and 302 mg /L in the first and fourth unit respectively ; the removal rates were 27% and 29% for primary sedimentation stage and biological treatment respectively and these rates are acceptable for normal limits.In general, the final treatment concentration was 302 mg/L in the fourth unit which is normal environmental rang, and also BOD concentration was not exceeded the environmental limits in the final stage of the treatment while the total percentage dissolved salts were 37% and 22% for the third unit which are normal in comparison to the Iraqi limits after the treatment for the fourth unit (703mg/L). Furthermore, the results of suspended solids found that the removal percentage was 76% for the second unit and 43%for the third unit while the total concentration of the last treatment was 61mg/L which is with normal limits, also the concentration of lipids of oils and grease was 0.8 mg/L for the fourth unit, while the removal percentage was efficient for the primary sedimentation and biological treatment. The heavy metals concentraitions were now with water and the main assembly tank and this was within normal environmental limits.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: البيئة - التلوث البيئي
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: سهير ازهر الكاظمي
اسم المؤلف: اسيل حسين محمد السعداوي

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: عصام فاضل علوان الجمیلي
اسم المؤلف: استبرق اكرم بيرام الحسيني

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

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
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: الاحياء المجهرية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: شادان عباس الوانداوي
اسم المؤلف: سمر مصطفى محمد

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

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).
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: مي خليل اسماعيل
اسم المؤلف: رواء سعدي سلمان

التاثيرات السمية لجسيمات الفضة النانوية على بعض الاعضاء لاناث طائر السمان Coturnix coturnix : دراسة نسجية وكيموحيوية Toxic Effects of Nanosilver Particles On Some Organs of Female Quail (Coturnix Coturnix); Histological And Biochemical Study

المستخلص: تضمنت هذه الدراسة التعرف على تاثير جسيمات الفضة النانوية في نسجية كل من الكبد والطحال والكلى فضلا عن تاثيرها في وظائف الكبد والكلى من خلال قياس بعض انزيمات الكبد المتضمنة (AST & ALT) وقياس مستوى اليوريا والكرياتنين (Urea & (Creatinine, فضلا عن تاثيرها في | This study was included to identify the effect of silver nanoparticles on histology of the liver, spleen and kidney, as well as it's effect on functions of the liver and kidneys through the measurementof some liver enzymes included (AST and ALT) and measurement of urea and creatinine levels, as well as the effect of silver nanoparticles in the weight of studied samples, numbers and sizes of the eggs were produced through the exposure periods.(45) quail (females) were collected from agricultured research center in Abu - Ghraib, divided into (4) groups including : T1 (12 quails were exposed to 4ppm), T2 (12 quails were exposed to 8ppm) and T3 (12 quails were exposed to 12 ppm) of nanosilver particles solution for (60) days.As well as control group T4(9 birds were exposed to distilled water).After the end of the exposure period samples were sacrificed by discapitation of the neck, and blood was collected for the purpose of serum separation which required for biochemical study, samples were dissected and fixated with Bouin's fluid, histological slides were prepared and stained with Eosin - Hematoxylin.Biochemical study were showed significant decrease in the level of liver's enzymes (AST & ALT), urea and creatinine. This decrease was elevated when the concentration was increased, as well as significant decrease in each of sizes and numbers of the eggs were produced through exposure periods and non - significant decrease in the body weight.Exposed groups with silver nanoparticles showed histopathological alterations for each of liver, spleen and kidney, in liver included congestion of blood vessels, infiltration of inflammatory cells, exudate, appearing of concilman bodies, fatty degeneration in most of hepatocytes which progressed to fatty changes in most of samples were exposed with 12ppm, Hyperplasia for each of blood vessel walls and capsule, atrophy of hepatocytes, and appearing of giant cells, while kidney sufferd from hydropic degeneration in most of renal tubules hemorrhage for each of cortex, medulla and glomerulus, hyaline degeneration of tubules, amyloid precipitation for each of glomerulus and blood vessels, sloughing of epithelial cells of renal tubules from basement membrane, hypertrophy of renal tubules with hyperplasia for cells of tubules and atrophy of renal tubules.Spleen tissue showed decreased in sheets of white pulp and lymphocyte numbers red pulp cells. Severity of these effects varied depending on individual differences between samples and concentration of silver nanoparticles, which increase in samples were exposed with highest concentration.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الدرجة: ماجستير
الموضوع الدقيق: الحيوان
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: غزوة درويش النقيب
اسم المؤلف: عبير ساجد عبد علي

عزل وتشخيص بكتريا Streptococcus spp المسببة لالتهاب اللوزتين من الاطفال وتاثير بعض عزلات بكتريا حامض اللبنيك عليها Isolation And Identification of Streptococcus Spp Caused Tonsillitis From Children And The Effect of Some Lactic Acid Bacteria (Lab) Strains On It

المستخلص: بحثت الدراسة جمع 100 مسحة من اطفال مصابين بالتهاب اللوزتين الحاد والمزمن ممن راجعوا استشارية الانف والاذن والحنجرة في مستشفى اليرموك التعليمي للمدة مابين كانون الاول للعام 2013 ولغاية اذار للعام 2014. وكانت نتيجة الزرع المختبري موجبة في 67 مسحة منها وبالا | In this study 100 swabs were collected from infected children with acute and chronic tonsillitis who attended at Al - Yarmook Teaching Hospital (Eear Nose Tonsils consultation clinic) from December 2013 until March 2014. The result of laboratory culture were positive in 67 samples. Depending on their cultural, morphological and biochemical characterization of bacterial isolates : (37.31%) of them were identified as Streptococcus pyogenes bacteria and the diagnosis is confirmed by the use of Remel Rapid STR System. Whereas (34.33%) belong to S.parasanguinis, (11.94%) S.mitis, (11.94%) S.oralis and (4.48%) S.thoraltensis were identification of them are confirmed by using Vitek - 2 System also. As well as Sensitivity test for S.pyogenes cultures for some of the antibiotics done and the results revealed that all cultures were sensitive to tetracycline and chloramphenicol drugs 100%, while it was different in their sensitivity for other drugs. According to age (2 - 13) years revealed the highest percentage of infection for both male and female, however the percentage of acute and chronic tonsillitis was higher in males than females. In this study, during investigation of the antagonist action of lactic acid bacterial isolates against these pathogenic bacteria, results revealed that the method of L.acidophilus discs gave a high inhibition zones with a diameter of 11.3 mm, while L.fermentum discs yielded a high inhibition zones with a diameter of 7 mm 24 hrs following incubation in comparison with well diffusion method by using suspension of L.acidophilus produced a high inhibition zones with a diameter 7.25 mm 48 hrs after incubation. L.fermentum suspension produced a high inhibition zones with 10 mm diameter 24 hrs following incubation. Also the study included measurement of the inhibition activity for bacteriocins produced by L.acidophilus bacteria against the pathogenic bacteria S.pyogenes on nutrient agar by well diffusion method in which results revealed stability of the bacteriocins effects under different PH (4, 5, 6) with percent (100, 60, 50)% respectively for 24 hrs at higher stability and the highest stability of bacteriocins during PH was 4 with percent 100%, while it lost a lot of its activity with acidic PH less than 2 and basal pH more than 8. During the study the effect of Nacl, Kcl and MgSo4 with different concentrations (1 - 5%) with constant inhibitory effect for bacteriocins produced by L.acidophilus against pathogenic S.pyogenes, The result revealed that Nacl had little effect in inhibition zone with 1&2% concentrations. The salt MgSo4 and Kcl showed reduction in the inhibitory activity with 1, 2, 3% concentration, however the higher concentration of salt caused great reduction as 5% concentration led to loss of inhibitory activity for bacteriocins completely.Also this study showed light on the inhibitory effect of probiotics suspensions against the adhesion property of S.pyogenes after treated with L.acidophilus and L.fermentum.where the Result shown that L.acidophilus inhibit the adhesion of S.pyogenes with percent 68.92% either L.fermentum inhibit the adhesion of this pathogenic bacteria to epithelial cell with percent 30.28%. The study is consisted of showed the inhibitory action for suspensions of L.acidophilus and L.fermentum on biofilm formation by S.pyogenes, it was noticed the action of L.acidophilus in the side more than from the action of L.fermentum. During the study of the effect of suspension and filter of L.acidophilus and L.fermentum on the production of Hemolysin enzyme by S.pyogenes, it was noticed that the ability of suspension belong to L.acidophilus and L.fermentum to reduce the diameter of hemolysis zone which was beta type more than the ability of filter L.acidophilus and L.fermentum to reduce of the hemolysis zone which was beta type.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الدرجة: ماجستير
الموضوع الدقيق: الاحياء المجهرية
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: ندى صباح رزوقي
اسم المؤلف: رند ثائر عبد اللطيف

توصيف العاثيات الحالة للمكورات العنقودية الجلدية (S. epidermidis) Characterization of Lytic Phage Against Staphylococcus Epidermidis

المستخلص: لحصول على عزلات Staph. epidermidisتم جمع (160 عينة) من حالات سريرية مختلفة كالتهاب المجاري البولية, التهابات جلدية, البلعوم, الانف, والاذن. تم الحصول على 51 (875¸31?) عزلة للمكورات العنقودية الجلدية Staph. epidermidis خلال فترة امتدت من ايلول 2014 الى كان | In order to isolate Staph. epidermidis, 160 clinical specimens were collected from (urinary tract infection, skin infection, pharynx, nose, and ear). Only 51(31.875 %) Staph. epidermidis isolates were obtained during a period from September 2014 to January 2015, depending on some biochemical tests and VITEK2 system. The Staph. epidermidis was given (gram stain, catalase , urase) positive, (coagulase, manital fermentation, oxidase, motility) negative, non haemolytic to human blood with some exception, most of the strain were able to produce biofilm, and (100%), (64.70%), (74.50%) resistant to penicillin G, ampicillin, and amoxicillin respectively. The Staphylococcus species identified during study were 44 (27.5%) isolates of Staph. aureus, 5 (3.125 %) Staph. haemolyticus, 4 (2.5 %) Staph. saprophyticus, 8 (4%) isolates other Staphylococcus spp. such as Staph. hominis ssp. hominis, Staph. capatis, Staph. xylose, Staph. simulanus, Staph. lentus, and 48 (30 %) from unknown genera. To isolate bacterioghages from sewage water, several sewage water samples were assayed using plaque assay of double agar overlay as a source of Staph. epidermidis phages. The bacteriophages were described depending on plaques size and shapes, phage 1 was the most predominant and frequent in the bacterial lawn and able to infect other S. species such as S. aureus. It has been selected to study it is titer, latent, rise period, and burst size were calculated. The effect of temperature, pH , and NaCl ions on it is original titer were studied.The results revealed a gradual decreasing in the phage titer with increasing dilution number. Latent period extended to (30 minutes) , while rise period was started with (40 minutes) extending to (60 minutes) , burst size was 2.346. Each temperature at several incubation periods , pH , and NaCl ions was significantly varied depending on phage titer. The optimum temperature was 40 ° C, while the 80 ° C was represented the inhibitor temperature. L.S.D. at level (0.05) for interaction was 39.552. The pH 6.5 - 7.5 represented the optimal pH for the best phage activity while the phage titer beginning to declining in above and below this range of optimal pH, L.S.D. at level 0.05 was 17.898 , the optimum NaCl ions concentrations were (0.1 M and 0.25 M), while the titer was significantly decreased with increasing the NaCl ion concentration in the culture solution, the L.S.D. at level 0.05 was (10.696). In conclusion of this study found that Phage1 was considered as predominant phage because of their ability to infect other Staphylococci species such as Staph. aureus.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
الموضوع الدقيق: الاحياء المجهرية
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: غانم عبود جابر المولى
اسم المؤلف: ريام سليم هندي الزيادي

دراسة تصنيفية لبعض مراتب الجنس Ranunculus L. (Ranunculaceae في العراق A Taxonomic Study of Some Taxa of The Genus Ranunculus L. (Ranunculaceae) In Iraq

المستخلص: “The current research dealed with fourteen taxa belonging to the genus Ranunculus L., Family Ranunculaceae that grown in Iraq. The study included the gross general morphological and micromorphological characters, the Pollen grains also were studied and the chemical compounds (Flavonoids), Ecological and geographical distribution and taxonomic treatment have been done. Also botanical key was puted to separate the Taxa”.“General survey for the Phytogeographical districts where the taxa spread in, and the result was a large crowds of samples, and new locations of taxa distribution were recorded. The specimens in the Iraqi herbaria were studied after ensuring that it was correctly identified”. “Comparative morphological study was undertaken to all plants parts of taxa including the roots, leaves, stipules, flowering parts and fruiting parts. Charts, diagrams, tables were drawn and accompanying with natural images for different morphological characteristics, as well as the field images that are important for the study. This study showed that all the taxa of the genus were herbs that are annual or perennial. There was agreat important for the roots, stems and there Indumentum, the presence orabsence of stipules, shape and size and margin of basal leaves and cauline leaves and leafy bract, the shape of sepals and their numbers and their Indumentum, the numbers and shape of Petals and their colors, the number of Stamens and the colors of Anthers, the shape of ovary and their indumentum, presence or absence of style as it was very useful for the taxonomic identification and separation of the studied taxa. As well as the fruiting parts including the length of fruiting peduncle, the fruiting receptacle, the fruiting head and its shapes and their dimensions, the number of Achene Fruitlets and their sizes, colors and Beak shape. Also the surface configuration of the fruitlets Surface has been studied by (SEM) as it wae either hairy or tuberculate - hairy or Transversely rugose or muricate or reticulate or reticulate - minutly rugose or granular or granular - hairy or granular - hairy tuberculate or spinulose”.“The study of the micro - morphological characters of hairs, leaves epidermal cells and the stomatal complex, have a taxonomic importance of supporting the morphological characters in separation and identification of the genus taxa”.“The study show that the pollen grains have a taxonomic importance because of their difference in shape, dimensions, the wall thickness and their ornamentation. It was either apolar which was spheroidal and pantoporate, or isopolar which has different shapes in the equatorial view it was spheroidal, subprolate and oblate - spheroidal, it was either 3 - colpate, 4 - colpate or 5 - colpat.the colpate where either zonocolpate or syncolpate in the form of parasyncolpate. The ornamentation were verucate, echinateand scabrate”. “The chemical study also has an importance in separation of the genus taxa, six flavonoid compounds were diagnosed by using” HPLC wich are Kaempferol, Vitexin, Orientin, Quercetin, Iso - vitexin and Iso - orientin. According to the presence or absence of those structures cluster analysis where done for the results of the flavonoid compounds and the taxa where divided into groups that reveal the chemical relationships between them.dendogram where performed which also show the chemical relationships between the taxa by using UPGMA method and NTSYS program issue 21. the study shows that the presence and distribution of those compounds vary according to the variation in the plant distribution the study shows that some of the taxa have “the same compounds which enhance its belonging to the Ranunculus genus”. “Through field surveys and information installed on the herbarium samples, the taxa where distributed on their growth areas, and maps have been drawn for taxa distribution in the Iraqi natural geographical. Most of the taxa were distributed in N. and N.E of Iraq regions districts especially in MAM, MSU, MRO, and FBF districts. We notice that MSU district has a great number of the plants under the study as we found there are all the taxa accept one”. This study helps to detect distribution areas for some taxa that have been not mentioned in the Iraqi flora or other records which are R.kotschyi and R.trichophyllus var.trichophyllus. Also the study records distribution for the new species R.chius in MAM district which hasn't been mentioned in the Iraqi flora in this district before. Finally all the taxa were classified and the botanical key was done to separate them.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: النبات
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: مازن نواف عبود العاني
اسم المؤلف: علي طالب محمد الطائي

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: دكتوراه
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: عبد الحسين مويت الفيصل
اسم المؤلف: جودت نوري غائب

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: مؤيد صبري شوكت
اسم المؤلف: عقيل حيدر عطا الله

دراسة تصنيفية حياتية مقارنة لمراتب من الجنس Onobrychis Mill. (Fabaceae) في العراق

المستخلص: استــهدف البــحث الــحالي دراســة تصــنــيفية مقارنة لاحدى عشر مرتبة تصنيفية تابعة للجنس Onobrychis Mill. من العائلة الفراشية (البقولية) Papilionaceae النامية بريا في العراق وهي O. acaulis وO. caput - galli وO. carduchorum وO. crista - galli بضربيه O. cri | A comparative systematic study was carried out for eleven taxa belong to the genus Onobrychis Mill., Family Papilionaceae grown widely in Iraq, and they are O. acaulis, O. caput - galli, O. carduchorum, O. crista - galli with two varieties O. crista - galli var. crista - galli and O. crista - galli var. trilophocarpa, O. galegifolia, O. haussknechtii, O. kotschyana, O. megataphros, O. ptolemaica, O. schahuensis. The Study included the gross general Morphological characters and Micromorphological characters, also the Pollen grains studied and Anatomy, Chemistry, Enviroment and Geographical distribution and Taxonomic treatment, also botanical key was putted to separate the taxa. General survey for the Phytogeographical districts where the taxa of genus distributed, in order to detect the distribution of the studied taxa of the genus Onobrychis. Therefore many collections obtained and new locations of taxa distribution were recorded, the specimens studied, and correct the mistake naming specimens were identified and reidentified some miss identified specimens. A comparative morphological study was undertaken to all taxa plants parts include the root, stems, leaves, stipules, flowering parts and fruiting parts and drew charts diagrams, tables and accompanying, with natural images for different morphology characteristics, as well as the field images. This study indicates that the characters of Leaf, Inflorescence, Flowers and Fruit were collectively contributed in the separation and identification of taxa. The pollen grains have a taxonomic importance because their different shape, dimensions of polar and equilateral view and wall thickness. The anatomical study showed the importance of Taxonomic support to the morphological characters in the diagnosis and isolation different taxa, and this study showed different in the anatomical characters of leaf include the characters of Epidermis, Stomata and the characters of a cross sections in stems. The current study showed that the trichomes were very important taxonomic in isolate different taxa because their variation in density, dimensions and the shape of epidermis cells that the trichomes arise from them and dimensions of the epidermal cells and the nature of their walls. The current study identified nineteen protein - amino acids by using High - Performance Liquid Chromatography (HPLC) and the distribution of these compound was variable among various taxa of the genus and that was useful in isolation different taxa. and the aliphatic amino acids, Glutamic acid, Glycine, Serine, Arginine, Alanine, Tyrosine, Valine, Methionine, Isoleucine and Lysine had a wide presence in the studied taxa, which means that they belong to the same genus. The ecology and geographic distribution of the taxa were studied using area survey and information of herbaria specimens, maps have been drawn for taxa distribution in the Iraqi natural geographical provinces. At last, a taxonomic treatment has been carried out for the taxa of the genus Onobrychis, as well as a detailed key to isolate them.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: النبات
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: عذية ناهي سلمان المشهداني
اسم المؤلف: زينب جواد عامر

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: البيئة - التلوث البيئي
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: محمد نافع علي العزاوي
اسم المؤلف: شيماء هادي حمادي الدليمي

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: البيئة - التلوث البيئي
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: احمد جاسم محمد العزاوي
اسم المؤلف: ضحى زكي السويفي

انتشار داء المقوسات العيني مع تقييم لبعض جوانب الحالة المناعية في عينة من المرضى العراقيين Prevalence of Ocular Toxoplasmosis And Evaluation of Some Immune Status Aspects In A Sample of Iraqi Patients

المستخلص: اجريت الدراسة الحالية على 104 مريضا من المراجعين لوحدة الشبكية في مستشفى ابن الهيثم التعليمي للعيون في بغداد للمدة من بداية شهر كانون الاول 2013 لغاية شهر حزيران 2014. قسمت مجموعة المرضى استنادا للتشخيص السريري وفحص اختبار التلازن Latex test الى 50 مصابا | The current study was conducted on 104 patients whose underwent to the retina unit in Ibn Al - Haitham Hospital of Eyes in Baghdad from December 2013 to May 2014. The patients groups were divided according to the clinical diagnosis to 50 patients infected with ocular toxoplasmosis (OT) and 54 patents with uveitis, in addition to these groups acontrol group was also included 96 healthy apparent persons without any infection in their eyes.Some epidemiological characters were studied like age, that showed a little effect on two groups OT (Mean of age 38.07 ± 15.14) and uveitis (Mean of age 35.1 ± 17.6). The two groups were found in range 20 - 40 year while the control group include individuals with different age due to the randomly collection. The occupation factor play arole in the prevalence of infection with highly significant differences (P<0.05) in (house wife, workers) with a percentages 35(70%) 35(64.8%) in OT and uveitis groups respectively but the control group expend to include house wife, workers and officers with a total rate 92.7%.The education level also showed significant differences (P<0.01) among the studied groups, the most of ocular toxoplasmosis and uveitis samples were found in highly frequency at the primary, intermediate and secondary educational level with total rate 74% and 77.81% respectively while the control group was found at the secondary and under graduate educational level in 77.1%. The residency character was also examined and no revealed significant difference (P<0.05).The infection path was also set by the presence of animals especially cats which ware existed leading to statistical differences, p? 0.01 for OT group with rate 18%. The visual activity character showed no significant difference (P?0.05) between the patients of OT and uveitis who affected their visual acuity in right eye while the doubling response was recorded for uveitis patients with rate 55.6% in comparable with OT patients with rate 38% for the left eye. The intra ocular pressure was normal in both groups and for both eyes without significant difference.Latex and ELISA IgG. IgM serological tests were used in this study. The results were showed that latex test is easier and it is appear that OT patients were diagnosis with 100%, while the uveitis patients didn't show any positive result. Control group showed that 21 individuals were infected with rate of 21.9%.ELISA - IgG toxo. antibodies confirmed that the infection rate of OT patients was 39 (78%) versus 11(22%) with negative result, while the study also confirm that uveitis patient that have OT disease was 12 patient from 54 case, 42 case didn't diagnosis for OT. The control group was re - evaluated showed 28 case with toxoplasmosis infection from 96 case which from the subclinical group. The antibodies levels were measure by international unit/ ml for all groups, the IgG level was 3.186 ± 1.703 Iu/ml in positive control group followed by OT patients with 2.927 ± 2.417 and uveitis group 0.637 ± 0.803, finally the negative control group 0.276 ± 0.163. IgM levels were low and its presence didn't have any positive case. This study also showed that there was a relation between the IgG level and the pathological effect on eyes which resulted from infection for both groups OT and uveitis, it was high rate 73.5% with 50 patient, for posterior uveitis causing significant differences (P<0.05) followed by anterior uveitis with rate 13.2%.As for the results of cytokines there was a high level of IFN - ? in positive control group 793.7 ± 3461.6 pg/ml followed by OT group 550.6 ± 210.6 pg/ml, the uveitis group that in infected with ocular toxoplasmosis and negative control recorded 524.1 ± 173.6 and 506.6 ± 104.6 pg/ml levels respectively, this rise in the level of IFN - ? cause a significant differences at (P<0.05) for OT, uveitis (non infected) and positive control groups. TNF - ? recorded arise of its level in positive control group 34.89 ± 12.29 pg/ml followed by OT group 32.24 ± 9.91 pg/ml then positive uveitis group 23.61 ± 12.91 pg/ml after them negative control 14.62 ± 5.43 pg/ml finally negative uveitis group with 7.76 ± 4.04 pg/ml.High level of 1L - 12 was gotin positive control group in a concentration 827.00 ± 224.25 pg/ml followed by OT group with 811.28 ± 179.40 pg/ml. An increase in 1L - 17A was recorded in positive control group with mean 327.65 ± 77.89 pg/ml while converged concentration in OT group 263.73 ± 47.48 and positive uveitis group 252.57 ± 61.55 pg/ml. The lowest level was in negative control group 421.6 ± 168.14 pg/ml. MCP - 1 showed a rise in its level in positive control group 274.09 ± 92.05 pg/ml and reduce in OT patients 217.68 ± 98.70 pg/ml, while the two groups negative and positive uveitis recorded levels 155.71 ± 99.51 and 132.60 ± 99.02 pg/ml respectively. The lowest level was register in negative control 97.56 ± 79.17 pg/ml.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: اسراء قاسم العبيدي
اسم المؤلف: عبير فاروق ساكن الحكيم

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

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
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: اسماعيل عبد الرضا عبد الحسن
اسم المؤلف: عدي عدنان مهدي

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
الموضوع الدقيق: التقنيات الاحيائية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: عبد الرضا عبد الحسن اللامي
اسم المؤلف: غزوان علي مسلم الرماحي

الكشف عن السمية الوراثية لمستخلص نبات الصبار Aloe vera باستعمال المؤشرات الجزيئية والخلوية Genotoxic Effect of Aloe Vera Extract Using Molecular And Cytogenetic Markers

المستخلص: نبات الصبار Aloe vera L. من النباتات المهمة والتي تستعمل حاليا بشكل واسع في مجال صناعة الادوية ويضاف هلام الصبار الى اغلب مستحضرات التجميل مع بعض المواد الغذائية في جميع انحاء العالم, لذا تم دراسة التاثيرات السمية الخلوية والوراثية لتراكيز مختلفة من المس | Aloe vera L. is one of the important plants in the world.It is currently and widely used in pharmaceutical industry, and its gel in some time added to some foods all over the world. Therefore, the present study was conducted to evaluate the cytotoxic and genetic effects of crude, alcohol and aqueous extracts of Aloe vera gel toward the onion(Allium cepa L.) roots (as a biological system) exposure at different periods. Onions roots were treated with different concentrations of the extracts : 2% , 5%, 10%, 20% and 40% (v/v)of the crud extract , 5%, 10%, 20% 30% and 50% (v/w) of alcohol extract and the concentration 25%, 50%, 100%, 150% and 200%(v/w) of aqueous extract of Aloe vera gel exposed for different period (24, 48 and 72) hour. The investigation were focused on the effect of these extracts on onions roots length rate and some cellular properties (mitotic index, phase index, the percentage and type of chromosome aberrations, as well as a genetic study using Random Amplified Polymorphic DNA (RAPD) of onions roots treated with different concentration of this extracts. Results showed that all Aloe vera gel extracts had inhibit activity toward onion roots length rate. The inhibition associated positively with the increasing concentration. The effective concentration (EC50%) were 10% of the crude extract, 20% of the alcoholic extract and 100% of aqueous extract, indicating the effectiveness of the crude extract followed by alcoholic extract and then the aqueous extract. Cytological study showed that all Aloe vera gel extract revealed a significant decrease in mitotic index (MI%) of the onion roots cells compared with the control group, and the effect was positively associated with the increasing concentrations of the extract. However, the effect was independent on the exposure period. The concentrations 10%, 20% and 150% of the crude, alcohol and aqueous extract respectively indicated a reduction of the mitotic index to almost 50% of the control treatment. Therefore, this concentrations considered as sub - lethal concentrations for this extracts respectively while the higher concentrations than 30%, 50% and 200% of the crude, alcohol and aqueous extract which reduced the mitotic index to almost 22% of the control treatment were considered as lethal concentrations. The results also showed a significant decreases in prophase and an increase in metaphase in onion roots cells treated with extracts comparison with control treatment. Many of chromosomal abnormalities were appeared due to the treatments of the onion roots with different concentration of the extracts, the percent abnormalities was increased with the increasing concentration of the extract and exposure period. The most frequent of chromosome abnormalities were chromosomal stickiness, disturbed chromosome, chromosomal bridges, C - mitosis, vagrant chromosomes in addition to the other chromosomal abnormalities star telophase. The toxicity effect of Aloe vera gel were studded on molecular level by using random amplification polymorphism of DNA(RAPD). Ten random primers were used, seven of them gave polymorphic bands in all the studied samples and their molecular weights were ranging from 100 to 1600 base pair. The results of Random Amplified Polymorphic DNA (RAPD) showed significant difference in the number of DNA band and their molecular weight of the onion roots treated with Aloe vera extracts compare to control treatment. The high concentrations(higher than EC50%) of extracts were showed to be more effective on the DNA through the appearance or disappearance of larger number of DNA band in comparison with control. The genetic template stability (% GTS) was significantly decreased in DNA of onions root treated with high concentrations (higher than EC50%) of Aloe vera extracts, therefore the high concentrations of Aloe Vera extracts were considered to be genetically toxic. The genetic dendrogram was obtained using Jaccard factor of genetic divergence and the result showed segregation of the samples treated with heights concentrations (%40 200% and 50%) of crude, alcohol and aqueous extract from other samples and control treatment. Therefore, the RAPD method can be considered as an efficient method in detecting for assessment of genotoxicity of crude, alcohol and aqueous extract of Aloe vera gel.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: العربية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: النبات - الوراثة
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: نضال نعمة حسين
اسم المؤلف: غيث منذر فاضل

التفكك الحياتي لمبيدي الملاثيون والدورسبان باستخدام مزارع احاديه وخليطه من البكتيريا Biodegradation of Malathion And Dursban By Mono And Mixed Bacterial Cultures

المستخلص: عزلت 45 عزلة بكتيرية محليه من مجموع 30 نموذج تربه ملوثة بالمبيدات والتي جمعت خلال فترات زمنيه مختلفة ومن مناطق مختلفه في بغداد. اختبرت قابلية العزلات البكتيريه على تفكيك مبيدي الملاثيون والدورسبان. اجريت غربلة اولية وثانوية باستخدام وسط الاملاح المعدنية ا | Forty five local bacterial isolates were isolated from thirty different soil sample contaminated with pesticide, These samples were collected from different Baghdad regions at different periods. The bacterial isolates were tested for their ability to biodegrade certain pesticides (Malathion and Dursban). Primary and secondary screenings were carried out using solid Mineral Salts Medium (MSM) and Liquid (MSM) with 100 ppm Malathion and Dursban at 37 0C, pH 7. Twenty seven isolates resistant to Malathion and Dursban were isolated. Out of 27 bacterial isolates from different locations in Baghdad. Results from primary screening showed that the 10 isolates had good growth, 5 isolates gave moderate growth, 12 showed weak growth and only 9 isolates failed to show any growth.According to current results, 10 bacterial isolates were tested for their ability to biodegradation of Malathion and Dursban in liquid medium, However, secondary screenings results by using minimal inhibition concentration(MIC) revealed that only four bacterial isolates had the highest ability to degrade Malathion and Dursban and subsequently were identified as Pseudomonas putida, Esherichia coli, Escherichia hermanii and Staphylococcus vitulinus by Vitek compact system respectively.The optimum conditions (incubation period, pH, temperature) for growth and biodegradation of Malathion and Dursban were examined. The obtained results indicated that the best incubation period was after 7 days, pH =6 and favorite temperature was 350C.Measurement physicochemical properties for soil pH, temperature (C°), electrical conductivity EC (µs/cm) for both Dursban and Malathion concentrations(ppm) collected from six different locations within Baghdad city. Biodegradation of Malathion and Dursban in soil inoculated with different bacterial mono - cultures and mixed - cultures were investigated. soil pH, temperature, electrical conductivity, cations and anions, on the population of native Malathion - Dursban tolerant bacteria in the cultivated soils of six sites. The result showed that soil physical properties like temperature and electrical conductivity affect significantly to native Malathion - Dursban tolerant bacterial density. Similarly, the soil chemical properties like pH, cations and anions had more effect on the abundance of Malathion - Dursban tolerant bacteria in the soil. However, the impact of soil organic carbon, organic nitrogen and available phosphorus was very significant. The results of the present study can be utilized for the development of effective bioremediation process for pesticide - contaminated soil. Under optimal conditions, Malathion and Dursban degradation was measured by using GC - MS analysis. The results revealed that Pseudomonas putida was the best isolate for degrading Dursban by monoculture isolate (47.18%) , while mixed culture(P.putida and S.vitulinus) was the best in degrading Malathion and Dursban that gave 90.84% and 81.055% respectively. Results also indicated that the number of byproducts produced by mono and mixed culture of Malathion and Dursban biodegradation. Whereas the results obtained from GC/Ms analysis revealed that not detected of toxic byproduct Malathion and Dursban degradation by Pseudomonas putida and Staphylococcus vitulins respectively.Moreover, under natural conditions.The study tested the ability of selected bacterial isolates (P. putida and S. vitulins) in biodegradation of Malathion and Dursban, the results showed slower biodegradation by selected bacterial isolates compared with laboratory conditions but study showed a intermediet product like phenol, diethyl phosphorothioate and oxon.The GC - MS results showed that the number of metabolic intermediates formed during the degradation of Malathion by bacterial mixed - culture were relatively higher in number than by bacterial mono - culture.The mass spectra of malathion containing samples treated with bacterial mono and mixed culture showed no any known toxic intermediates. The result indicated that the two main degradation products resulted from bacterial degradation, namely malathion monocarboxylic (MMA) and malathion dicarboxylic acid (MDA), the first one may convert into the latter over time. Some other degradation products may occur such as ethyl hydrogen fumarate (EHF) but in negligible amount.The result indicated that the main degradation products resulted from bacterial degradation of dursban is trichloropyridinol(TCP) and then de - chlorinated into 2 - pyridinol.The mass spectra results obtained in this study showed that the dursban was degraded to many metabolites.The results suggested that the bacterial isolates were not forming any toxic intermediates but no any intermediate was identified till R.T. 22 minutes. This indicated that dursban is probably completely metabolized by the isolates into smaller intermediatesThe isolate Pseudomonas putida isolated from soil contaminated with pesticides was identified genotypic tests. Molecular typing was performed by RAPD - PCR and comparison of the results to other Pseudomonas isolates. The result shows that genotyping differences between isolates and found the convergent percent biodegradation between this isolates of both selected pesticide, although from these differences, there was no more effect to biodegradation, which means that the biodegradation of Malathion and Dursban not related to genotype
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: دكتوراه
الموضوع الدقيق: البيئة
السنة: 2015
الموضوع العام: علوم الحياة
اسم المشرف: عادل مشعان ربيع
اسم المؤلف: فائزة كاظم عمران

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: الاحياء المجهرية
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: ايمان ناطق ناجي البياتي
اسم المؤلف: قاسم ابراهيم حسين

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

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).
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: الحيوان
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: بان نوري القاضي
اسم المؤلف: لينا قاسم كاظم الزهيري

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الدرجة: ماجستير
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: عبد الكريم جاسم هاشم
اسم المؤلف: محمد عادل نوري

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

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.
الصفحات الاولى:
مكان الجامعة: بغداد
اللغة: الانكليزية
الجامعة: جامعة بغداد
الدرجة: ماجستير
الموضوع الدقيق: النبات
السنة: 2014
الموضوع العام: علوم الحياة
اسم المشرف: محمد نافع علي العزاوي
اسم المؤلف: مروة صباح طالب