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تاثير الذيفانات المعوية للبكتريا ETEC Escherichia coli في الخلايا السرطانية والخطوط الخلوية وفي حيونات التجارب == Effect of ETEC Escherichia coli enterotoxins on cancer cells, cell lines and laboratory animals

اسم المؤلف: الهام سعيد عبد الكريم بنو
اسم المشرف: رشيد محجوب مصلح | ناهي يوسف ياسين
الموضوع العام: علوم الحياة
السنة: 2005
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: his study aimed investigating the cytotoxic effect of crude enterotoxins on normal and cancer cells both invitro and invivo. the present study included isolation and identification of Pathogenic Escherichia coli, From Children (under 3 - years for both sexes) infected with severe diarrhea, from March to June 2005, and as follows : *Sixtysix Islates (60%) were obtained from 110 samples. These Isolates were Identified according to morphological and biochemical tests, and for confirmation by Api - 20E System. *Serological identification for these Isolates( 66 isoleates )showed that only 12 (18%) isolates were belonged to Enteropathogenic group of E. coli.(EPEC).* The results of using Suckling Mouse Assay(SMA) showed that only 13 (19.6%) out of 66 Isolates were capable of producing heat - stable (ST) enterotoxin, therefore these isolates belonged to Enerotoxigenic group of E.coli ( ETEC).Whereas the EPEC isolates were all negative for this test. According to the toxin activily that was evaluated by (SMA) the Isolate No. 99 determined as the most efficient Isolate in producing the (ST). The same Isolate (99) of E. coli showed its ability to produce heat Labile enterotoxin (LT), by using Rabbit lileal Loops.The Isolate (99) revealed for sensitivity to Ampicillin, Gentamicin, Nalidixic acid and Nitrofurantoin antibiotics, but resistance to Amoxicillin , Cefixime, Cephallothin, Ciprofloxacin and trimethoprim.This Isolate also showed its ability to adhere by using the special media that contain the congo red stain, and by using hemagglutination test because it posseses the colonization factors antigen (CFA/1) and CFA /III However it failed in producing hemolysin enzyme that hemolyze red blood cells The toxin reserved Its activity at temperatures (20,40,60 and 80)c0 , but loss some of its effect at 100 c0 and kept its activity at 4 c0 for (24 - 48) hrs, It was found that the highly toxic activity reduced in the PH 5,9.5. The time ofmice response to enterotoxin was determined. At 90 minutes, as the maximum of response and 180 minutes as the optimum time of response. Enterotoxin was purified partially by using sepharose CL - 6B, and the molecular weight for (ST) was 17378 dalton. LD50 of both bacterial Suspension and crude enterotoxin in mice was 2.13 × 108 cell/ mice, and 48.75 mg/ mice respectively. The crude enterotoxin showed more severe effect than the bacterial suspension in spleen, Intestine, and Lung, while the effect of bacteria suspension was more severe in Liver.The therapeutic dose of crude enterotoxin was determined according to LD50 in mice it was revealed that the concentration of 390 mg/kg have the activity in reducing the tumor volume when injected directly in tumor, with an inhibition ratio between(83 - 89)% beginning at 8th day of the 25th injecting days. While when the toxin was injected intraperitonealy, the inhibition ratio of tumor was Less than the injection in tumor it self. The dose 97.5 mg/kg that given daily for 25 days showed more efficiectly in reducing the tumor in percent of 73.3. The Comparitive study between the relative volume of tumor in treated group and the relative volume of tumor in control group revealed that there was significant difference statistically important all over the treatment time.. The necrosis and fibrosis were the most important characteristics in treated groups after histopathological examination which appearantly with the progress of treatment associated with volume decrease of tumor, so it was found that the last stage of treatment showed the cancer cells presented like small Land Surrounded by dense fibrous tissue. The treatment by using all toxin concentration in both ways of injections on murine bone marrow cells, showed significant increase in blast Index (BI) and mitotic Index (MI) when compared with control.The toxic effect of crude extraction was studied in tumor cell lines (in vitro), Hep - 2 and AMN - 3 and the normal cell line REF, the study showed that the toxic effect depend on the type of cells, the dose and the time of exposure. This study revealed that the AMN - 3 Cells were more Susceptible from that of Hep - 2 Cells and the high concentration caused inhibition to the growth of the tumor cells, Specially the concentration of 60000 Mg/ml, Also growth and multiplication of REF cells. Whereas the concentrations of 1875and 3750 Mg/ml were found as an inhibitor to REF Cells. Partially purified enterotoxin (ST) showed that it's effect was found to in hibit Hep - 2, AMN - 3 and REF cells at 72 hrs of exposure and has an inducer effect to growth of cells at 24 hrs of exposure in all concentrations,but the effect was differ in the time of exposure at 48hrs,that the three concentrations (1.986,3.965and 7.95) Mg/ml showed inducing effect ,while the three hight concentrations(15.86,158.6 and1586) Mg/ml showed inhibition effect to AMN - 3 cells.Also the hight concentrations(30000 and 60000) Mg/ml werefound as inhibitor to REF cells at( 48,72)hrs,but they were inducer of growth at 24hrs of exposure. The toxicity effects of crude enterotoxin were studied in human Lymphocyte multiplication (in vitro) , and the higher concencentration showed decline in Mitotic index (MI), but It was induced cells to transform in present of mitogen, so there was inverse in blast index (BI) when compare with the control.

دور الببتيدو كلايكان في امراضية بكتريا Staphylococcus saprophyticus == Role of Peptidoglycan in Pathogenicity of Staphylococcus saprophyticus

اسم المؤلف: عذراء صالح فليح الهيتي
اسم المشرف: مي طالب فليح | حارث جبار فهد
الموضوع العام: علوم الحياة
السنة: 2005
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: من مجموع 300 عينة ادرار تم الحصول على 71 عزلة عائدة لجنس الـ Staphylococcus من مريضات مصابات بخمج المجاري البولية واظهر عائدية 16 عزلة للنوع S. saprophyticus تم تشخيصها بوساطة الاختبارات الكيموحيوية ، كما تم اختبار حساسيتها للمضادات الحيوية ، استخدمت عملية التكسير الميكانيكي (Mechanical disintegration) باستخدام المازج (vortex) والحبيبات الزجاجية ، والتكسير باستخدام جهاز الذبذبات فوق الصوتية لتكسير جدار خلية العزلةS67 saprophyticus S. والحصول على خلايا متكسرة تمثل الجدار الخلوي الخام ومن ثم استخلاص وتنقية جزئية للببتيدوكلايكان بالاعتماد على الهضم الانزيمي بوساطة انزيمات الـ DNase وRNase وPronase وTrypsin فضلا عن استخدام مركب سلفات دودسيل الصوديوم (SDS) ومواد كيميائية اخرى ؛لازالة الاغشية السايتوبلازمية والمحتويات البروتينية الاخرى ؛ وبذلك تم الحصول على ببتيدوكلايكان نقي خال من الشوائب وهذا ما اكده الفحص بالمجهر الضوئي والالكتروني وقد اظهر الببتيدوكلايكان حزمة بروتينية واحدة عند اجراء الرحلان الكهربائي بهلام متعدد الاكريل امايد تحت ظروف غير ماسخة مقارنة بالجدار الخلوي الخام والذي اظهر عدة حزم بروتينية ؛ مما يدل على كفاءة الطريقة المستخدمة في الاستخلاص. تضمن البحث دراسة امراضية بكترياS67 S. saprophyticus المسببة لخمج المجاري البولية في الفئران اذ حقنت مجموعة من الفئران الاناث البيض عبر الاحليل وباستخدام القثطرة بتركيز 109 خلية جرثومية / مليلتر ، وحقنت مجموعة اخرى من الفئران بتركيز 3 ملغم / 0.2 ملليتر من الببتيدوكلايكان المستخلص منS67 S. saprophyticus والمنقى جزئيا وتم تشريح الفئران حيث اظهرت الاعضاء (الكلى والمثانة) تغييرات نسيجية ممرضة تمثلت بانكماش الكبيبة الكلوية واحتقان الاوعية الدموية للكلية وارتشاح الخلايا الالتهابية وفقدان طبقة الكيراتين في المثانة سواء اكانت محقونة بالجراثيم ام بالببتيدوكلايكان . حضر المصل المضاد للببتيدوكلايكان في الحيوانات المختبرية (الارانب البيض) وتبين ان الببتيدوكلايكان ممنع جيد عند حقنه في الارانب ، وتم اثبات وجود الاجسام المضادة للببتيدوكلايكان باستخدام اختبار الندف بالانابيب واختبار التلازن الجرثومي (Bacterial agglutination) حيث كون المصل المضاد للببتيدوكلايكان المعزول من جدار بكتريا S.saprophyticusS67 تلازنا مع جراثيم البكتريا نفسها وايضا اعطى تلازنا مع العزلة القياسية ATCC6538 S. aureusمما يشير الى وجود تفاعل تصالبي لهذه الاضداد. تم دراسة التاثيرات السريرية للببتيدوكلايكان في الارانب المحقونة، اذ لوحظ ارتفاع في مستوى اليوريا والكرياتنين وانزيمي GPT وGOT والكلوكوز في الدم وانخفاض مستوى انزيم الفوسفتيز القاعدي( Alkaline phosphatase ) مما قد يدل على وجود خلل وظيفي في عدد من الاعضاء مثل : الكلى ،و الكبد ،و البنكرياس نتيجة تاثرها بالببتيدوكلايكان | Seventy one isolates of Staphylococcus were obtained from 300 urine samples isolated from female patients with urinary tract infection. sixteen of these isolates were identified as S.saprophyticus by biochemical tests , the sensitivity of the isolates to different antibiotics were also studiedMechanical disintegration method using vortex and glass beeds in addition of Ultrasonicator were used for preparing disintegrated cell wall which represent Crude cell wall , Extraction and partial purification of the peptidoglycan were accomplished by enzymatic digestion using DNase ,RNase ,Pronase and Trypsin in addition to SDS and other chemicals to remove the cytoplasm membrane and other protein contents, so we obtained pure peptidoglycan that were confirmed by light and electron microscope, the partial purified peptidoglycan showed one protein band compared with crude cell wall which showed many protein bands when performed in poly acryl amide gel electrophoresis under non denaturing conditions which improved the efficacy of method that employed in extraction of peptidoglycan The pathogenicity of the S.saprophyticus in urinary tract infection of mice was studied, Female mice were injected transurethrally by using catheter with 109 germ cells concentration /ml, other group of mice were injected by 3mg concentration /0.2ml of partial purified peptidoglycan which extracted from S.saprophyticus , The histopathological changes in the organs (Kidney and Bladder) whether it was injected with germ or the peptidoglycan were observed Antiserum of the peptidoglycan was prepared in the laboratory animals (white rabbit) the results revealed that the peptidoglycan was a good immunogen, The presence of antibodies was shown by tube flocculation test and bacterial agglutination test.Thiese antibodies cause agglutination with S.saprophyticus by using microtiter plate and also give cross - reaction with ATCC5538P S.aureusThe clinical effects of the peptidoglycan in the injected rabbit were also studied, The levels of Urea,Creatinine ,GOT, GPT ,Glucose were increased in the blood where the level of Alkine phosphatase was decreased which indicate that the peptidoglycan caused dysfunction of several organs like kidney,liver and bladder

دراسة نوعية مياه خزان الحبانية موقعيا والاستشعار عن بعد == Study of The Water Quality In Alhabbaniyah Reservoir In Situ And Remote Sensing

اسم المؤلف: احمد عطا الله حسن الفهداوي
اسم المشرف: عادل مشعان ربيع
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة المائية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:

العلاقة بين مؤشر الموت الخلـوي المبرمج (ربيطة فاس الذائبة) وقلة النطاف عند الرجال == Correlation Between Apoptotic Marker (Sfas Ligand) And Oligozoospermia In Men

اسم المؤلف: احمد حسين علي الزاملي
اسم المشرف: صباح ناصر العلوجي | انعم رشيد الصالحي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الحيوان
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The Fibroblast associated (Fas) system in the testes has been identified as a key regulator of apoptosis, a process that greatly influences the germ cell population of the testes. and the soluble Fas Ligand (sFasL) may be a competitive inhibitor to induce apopto¬sis of the Fas baring cells. Therefore, this study measures the level of sFasL in the semen of oligozoospermic men evaluating the association between seminal plasma sFasL and spermatogenesis.A total 58 oligozoospermic men and 29 normozoospermic volunteers were included in this study. They were attending the Infertility Clinic of the High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, AL - Nahrain University\ Baghdad. Their age mean was 31.77± 5.48 years and a median of 30 years. Semen samples were evaluated according to World Health Organization 2010 standard parameters. The Seminal plasma was separated from the cellular elements after centrifugation and the supernatant was transferred to plane tubes and frozen at - 20 ?C till using for measurement of sFasL. These patients were classified into patients with severe oligozoospermia (sperm concentration ?5 million / ml) which include 29 patients, and patients with mild and moderate oligozoospermia (sperm concentration ranging between 5 - 15 million / ml) which includes 29 patients as well. The control group comprised of 29 men with normospermic parameters according to WHO 2010 standard (Normal volunteers). The sFasL was measured using ELISA enzyme immunoassay for quantitative determination of sFasL Kit. Data were analyzed statistically using Analysis of variance (ANOVA), Least Significant Difference (LSD) and Correlation Coefficient (r).The sFasL level was found significantly higher (P< 0.01) in seminal plasma of oligozoospermic men, with weak correlation of the level of sFasL with the degree of severity of oligozoospermia. Based on the results of this study, it was concluded that sFasL is a novel marker found in the seminal plasma of oligozoospermic men. It's level was higher in cases of oligozoospermia regardless of its severity.

تكامل جرعة منخفضة من مبيد الترفلان مع مخلفات زهرة الشمس في مكافحة الادغال وتحسين نمو محصول الماش لتقليل الاعتماد على المبيدات والحد من مخاطرها == Integration of Reduced Dose of Trifluralin Herbicide With Sunflower Residues For Weed Control In Mungbean Field

اسم المؤلف: اﺭﻭﻯ ﻋﺒﺪ ﺍﻟﻜﺮﻳﻢ ﺗﻮﻓﻴﻖ
اسم المشرف: اﺑﺮﺍﻫﻴﻢ ﺷﻌﺒﺎﻥ ﺍﻟﺴﻌﺪﺍﻭﻱ
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: النبات - الفسلجة
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Two field experiments, several greenhouse and laboratory experiments were conducted during the course of study to evaluate the allelopathic potential of two sunflower (Helianthus annuus L.) cultivars on companion weeds and weeds grown in mungbean (Vigna radiata L. R. Wilczek) field alone and in combination with reduced rate herbicide, and to determine the chemical and genetical bases of allelopathic traits in the test cultivars. The aim of the first experiment was to test whether the variation in weed growth between the sunflower cultivars (Shumoose and Sin Altheeb), which was observed in the field, was due to differences in their allelopathic potential. Results showed the ability of both cultivars to reduce weed population and biomass with the superiority of Shumoose cultivar in suppression of weed density at 60 and 120 days after sowing compared to Sin Altheeb. Weed biomass was significantly reduced up to 90 and 71% by Shumoose and Sin Altheeb cultivars, respectively. Stair case experiment indicated that root exudates of Shumoose cultivar showed more suppression to weeds than Sin Altheeb giving additional evidence for the superiority of Shumoose cultivar in its allelopathic weed suppression. Chemical analysis by High performance liquid chromatography indicated the presence of 9 compounds in root exudates of Sin Altheeb and 8 compounds in Shumoose, and all are Phenolic in nature. However, total of the isolated phenolics was doubled in Shumoose than in Sin Altheeb. Most of the isolated chemicals are reported to have inhibiting ability for germination and growth of plants, including weeds. Second field experiment was undertaken to explore the response of weeds and mungbean crop to soil incorporated with sunflower residues in combination with lower rate of a pre - plant herbicide (trifluralin). Sunflower residues of the two cultivars Shumoose and Sin Altheeb at 3.2 and 6.4 t ha - 1 were used either alone or in combination with trifluralin at 1.2 L ha - 1 (50% of label rate). Weedy check (control), trifluralin at full label rate (2.4 L ha - 1), and weed free treatments were also included for comparison. Plots treated with 50% of label rate of herbicide and amended with sunflower residues of cultivar Sin Altheeb recorded least weed density and dry biomass and this suppression was much greater than the residue treatments alone and more than cultivar Shumoose. Application of herbicide at 50% rate in plots amended with Sin Altheeb residue resulted yield 64 % more than with the label rate of herbicide treatment. Chromatographic analysis of sunflower amended field soil revealed the presence of several potent allelopathic compounds in the residues of both cultivars with greater quantity (355.5 µg/ml) in Sin Altheeb than in Shumoose (250.9 µg/ml). Dynamics of release, decomposition and degradation of allelochemicals into the soil showed that different compounds exhibited differential behavior for these processes. Overall quantity of allelochemicals started to increase after 2 weeks of decomposition and peaked at 4 week of decomposition (180.1 ppm) then declined sharply in their quantities thereafter. Periods indicating higher quantities of total phenolics as shown by chromatographic analysis was coincided with the periods in which higher suppressive activity against weeds grown under field conditions. Bioassay of sunflower residues decomposed in soil at different times on Echinochloa colonum L, one of the weeds dominated the mungbean field, revealed that residues of both cultivars suppressed growth of E. colonum weed. The phytotoxicity started after 2 weeks and persisted for 8 weeks. However, Sin Altheeb residues showed greater inhibition than Shumoose cultivar at the last three decomposition periods. Shumoose residues recorded appreciable reduction to the growth of test weed compared to Sin Altheeb. The effect of residues of both cultivars on chlorophyll content and ions uptake in Amaranthus retroflexus L. weed revealed that residues of both species reduced chlorophyll content of leaves and the reduction increased with the increased residue rate. Sin Altheeb cultivar residues were more inhibitory than Shumoose at the lower residue rate. In the same weed, ions uptake was significantly averted by the residues of both cultivars. P and K was significantly increased over control, while Ca, Mg an Fe were found to be decreased over control due to application of sunflower residues in soil at 8 g per kg soil. N was the only test element that did not significantly influence by the residue treatments. No significant differences were found in the test ion uptake between the test sunflower cultivars. Results of using RAPD technique on the sunflower genomic DNA revealed that all the 19 primers used in this study scored different amplification monomorphic and polymorphic bands in the tested genotypes with 12 primers generated polymorphic bands. These bands present in one cultivar and absent in another. They could be responsible for allelopathic trait or secondary compounds associated with this phenomenon. Further work is recommended to analyze the sequence of this band to find out whether it is related to allelopathic trait or not.

التنميط الجيني لفايروس التهاب الكبد نوع اي لمرضى الاصابة الحادة في محافظة المثنى - العراق == Genotyping of Hepatitis E Virus Among Patients With Acute Infection In Al - Muthanna Province / Iraq

اسم المؤلف: ازهار صبري مسلم الذهبي
اسم المشرف: رغد حربي مهدي العزاوي
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Hepatitis E Virus (HEV) infection is found worldwide. It is responsible for large outbreaks in East and South Asia. This study was carried out to identify the distribution of acute HEV infection in AlMuthanna province and then determine the genotypes responsible for the disease spreading. This is the first investigation about the occurrence of hepatitis E genotypes in Al - Muthanna province patients. The study included 270 jaundiced patients of both sexes From AlMuthanna province which included out patients in public health laboratory in Samawah city, for the period from October 2013 to June 2014. All these patients were tested for anti - HEV IgM antibodies by using enzyme linked immunosorbent assay (ELISA). In Al - Muthanna province, 72 patients (26.66 %) out of 270 patients showed positive results for anti - HEV IgM antibodies, and all those patients were tested for confirmatory test at central public health laboratories (CPHL) in Baghdad province. Those patients consist of 45 females and 27 males with age ranged between (4 - 74) years old, were all negative for routinely screened markers of Hepatitis A, Hepatitis B and Hepatitis C, Ten normal healthy individuals, used as normal control in this study. This study showed that the HEV IgM is more common among younger age group (15 - 24), with a percentage of) 41.67%(, and it was higher in females (63%) than in males (37%). Highly significant differences (p ? 0.01) appeared among age groups. The levels of liver function enzymes demonstrated significant differences (p ? 0.05) in HEV patients as compared with healthy controls. The levels of Total Serum Bilirubin (TSB) were (23.41 ± 12.38) mg/dl, Serum Aspartate transaminase (SAST) were (887.17 ± 9.87) U/l, Serum Alanine transaminase (SALT) were (859.91 ± 13.28) U/l, and the levels of Serum Alkaline phosphatase (SALP) were (206.56 ± 5.04) U/l higher than healthy controls (0.884 ± 0.05) mg/dl, (37.27 ± 4.58) U/l, (34.14 ± 7.63) U/l, (48.09 ± 15.42) U/l respectively. RNA was extracted from sera of positive anti - HEV IgM antibodies by using a QIAamp® Viral RNA Mini Kit. Nanodrop and Quantus™ Fluorometer instruments were used to determine the RNA yield and purity according to the standard kit protocol. High levels of RNA concentration were measured by Nanodrop and Quantus™ Fluorometer. Forty - six samples have high RNA concentration out of 72 samples were detected for genotypes I, III & IV by using Applied Biosystems Real time PCR 7500 machine. In this study, HEV type I and III were detected in 23 samples out of 46 samples by using Real Time PCR systems. Ten samples were positive for this test. Thirteen samples (56.52%) were negative for this test. The distribution percentage of genotypes I and III was (43.48%). The results appeared significant difference (P ? 0.05). Also by using the same technique (Real time PCR systems) the HEV type IV was detected in 23 samples out of 46 samples. Which included, 13 samples that recorded negative results by I & III genotypes kit and only 2 samples from it recorded positive results and 11 samples recorded negative result for HEV genotype IV. From other 10 samples, only 3 samples recorded positive result and 7 samples recorded negative result for HEV genotype IV. In a total, 5 samples were positive for HEV genotype IV and 18 samples (78.26%) were negative. So that the distribution percentage of genotype IV was (21.74%). In this study, the samples that showed negative results in both kits have not been tested for other genotypes. This study indicated that the acute HEV infection is highly endemic in Al - Muthanna province in Iraq. Genotypes I & III were the most distribution than genotype IV in patients from Al - Muthanna province in Iraq. These results suggest that the genotypes I & III are the main causative agents of sporadic HEV infection in Al - Muthanna province

دراسة بعض الجوانب المناعية والبكتريولوجية لمرضى ذات الرئة Pneumonia == Study Some Immunological And Bacteriological Aspects of Pneumonia Patients

اسم المؤلف: كرم رياض حسن الجراح
اسم المشرف: رسمية عبد ابو ريشة
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: جمعت 120 عينة قشع من اشخاص مصابين بمرض ذات الرئه للمدة من ايار 2013 الى شباط 2014 من ثلاثة مستشفيات في مدينة بغداد وشملت مستشفى اليرموك التعليمي, مستشفى دار التمريض الخاص, مستشفى بغداد التعليمي. شخصت العينات باستخدام الفحوص البايوكيميائية, نظامApi 20 E و| From May 2013 to Feburey 2014, 120 sputum and Aspiration samples of patients with pneumonia disease were collected from different hospitals in Baghdad included : Al Yarmouk Teaching Hospital, Hospital Nursing Home sector and Baghdad Teaching Hospital. All samples were diagnosed by biochemical tests, Api 20 E and Api20 strep. Systems, The results was found to be 28 isolates (23.3%) belong to K.pneumoniae, 26 isolates (21.7 %) belong to S.pneumonia while 66 isolates(55%) belong to causes : E.coli, Pseudomonas sp., Moraxella catrrhalis, S.pyogens, Monilia and S.aureus. From (55) blood samples of pneumonia patients and 30 blood samples from healthy individuals, number of white blood cell (Neutrophil) counts were measured, percentage of Neutrophil cell count in female (53%) higher than the cell count in male(47%). Some markers of pneumonia disease were studied such as ratio of infection between male and female, chronic and acute cases and smoker and non smoker, the results were showed the ratio of infection in female more than in male, (60%, 40%), respectively. And number of acute cases of pneumonia patients 41(74.55%) more than chronic cases 14(25.45%). While infection ratio in smoker patients more than nonsmoker patients at ratio 24(57.14%)18(42.86%), respectively. The result of interleukin - 8 level through acute and chronic phases in pneumonia patients sera was showed high level in patients compared with healthy persons (86.4403 ± 25.50919 vs. 58.7636 ± 4.73152 pg / ml, respectively) with a non significant difference statistically (P?0.05). Also in the age group (age 15 - 60years), The results showed the results interleukin 8 levels higher than the age groups of (2month - 3years) and (age 60 - 85) (93.63 ± 51.65, 68.88 ± 17.17, 65.68 ± 11.73 pg / ml, respectively) with non significant difference (P?0.05). The result of Leukotriene B4 level through acute and chronic phases in pneumonia patients sera showed high level in patients compared with healthy persons (36.00 ± 3, 82 vs. 25.96 ± 4.44 pg / ml, respectively) with a significant difference (P?0.05). Also in the age group (two months - 3 years) were showed the results interleukin 8 levels higher than the age groups (age 15 - 60) (age (60 - 85)(33.61 ± 11.06, 19.29 ± 4.67, 16.86 ± 4.51 pg / ml respectively) with no siginificant difference (P?0.05), the correlation coeifficient between interleukin - 8 and leukotriene B4 was (0.12) with no siginificant difference. The phagocytic activity was determined in pneumonia patients sera according to measurement C3 protein level through acute and chronic phases, the result were showed the ratio of C3 protein levels in healthy persons more than in patients (135.93 ± 12.74, 133.19 ± 12.01 pg / ml, respectively) with a difference was not significant statistically (P?0.05).

انشاء وتوصيف لخط سرطان الثدي الخلوي العراقي == Establishment And Characterization of Iraqi Breast Cancer Cell Line

اسم المؤلف: مرتضى عادل الشامي
اسم المشرف: محفوظة عباس عمران | احمد مجيد الشمري
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Several primary cultures were initiated from different samples obtained from Iraqi female patients of breast tumor, one sample was successful, and this sample was histological diagnosed as breast cancer infiltrating ductal carcinoma.The cell suspension was cultured in tissue culture flask and confluent monolayer achieved after 16 days from primary culture. The continuous subculture was done in grown cells in tissue culture flask each 48 - 96 hrs. Between subculture to other until across 50 passages through11months.In our current study different experiments were done to characterize the cultured continuous cells, which are studying the growth curve of the new established cell line and calculating the population doubling time that have been 22 hours.Furthermore, a morphological study was carried out by staining the cells with hematoxilin and eosin dyes. The cells were elongated multi - polar epithelial like cells with nuclear polymorphism and multi - nuclei, in addition to high nuclear to cytoplasm ratio, all these characters of the malignant tumor cells.The Cytogenetic study showed chromosomal aberrations with many numerical changes among the tumor cells and abnormal structure gives chromosomes with unknown origin called marker chromosome. In furthermore the G - band stained of normal 46XX chromosome was done to facilities the comparisons between chromosomes of the new established breast cancer cell line and normal chromosomes aberrationsImmunocytochemistry examination was done for the tumor cells grown in multi well tissue culture slide chamber to detect the presence of some hormonal receptors (ER and PR) gives negative result, and to test Her - neu2 gene that gives week positive result.

دراسة تصنيفية لانواع مختارة من نباتات ذوات الفلقتين في محافظة كربلاء المقدسة, العراق == Taxanomical Study For Selected Dicot. Spp. In The Holy Karbala Province, Iraq

اسم المؤلف: زينة خليل ابراهيم البهادلي
اسم المشرف: علي حسين عيسى الموسوي | خليل ابراهيم الشمري
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: النبات
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تناول البحث الحالي دراسة بيئية لعدة مواقع من محافظة كربلاء المقدسة بين شهري شباط وايار ولسنتي 2013 و2014 من حيث نوع الترب والمجتمعات الاحيائية لهذه المواقع جمعت خلالها انواع مختلفة من النباتات تابعة لعائلات مختلفة ضمن ذوات الفلقة الواحدة وذوات الفلقتين اذ | The present work includes ecological study for different locations of the holy Karbala province between February and May and for the years2013, 2014, investigating soil kinds and communities in these locations. Different plant species of Monocots and Dicots were collected from variable soil kinds, such as sandy saline soil, loamy saline soil and sandy gravely soil. The species of Haloxylon salicornicum, Zygophyllum coccenium were dominant in the communities of sandy saline soil, Nitraria retusa, Juncus sp. and Halocnemum strobilaceum were dominant in loamy saline soil.Comparative anatomical study has been done for (30) Dicots wild species grown in these environments of Karbala province, as follow : a.Family : Aizooaceae1) Aizoon hispanicum L. b.Family : Chenopodiaceae2) Chenopodium murale L.3) Halocnemum strobilaceum (Pall.)M.Bieb.4) Haloxylon salicornicum (Moq.)Bunge ex. Boiss.5) Salicornia herbacea L.c. Family : Compositae (Asteraceae)6) Carthamus oxycantha M.B. 7) Launaea capitata (Spreng.)Dany 8) Launaea mucronata (Forssk.)Muschl. 9) Rechardia tingitana (L.)Roth. d. Family : Convolvulaceae10) Convolvulus oxypyllus Boiss. e. Family : Cruciferae (Brassicaceae)11) Diplotaxis harra (Forssk.)Bioss. 12) Sterigosella africana (L.)Boch. 13) Sterigosella grandiflora (Bnge)Bochantsev 14) Savignya parviflora (Del.)Webb. 15) Neotorularia torulosa (Desf.) Hedge & J. Leonard 16) Zilla spinosa (Turra)Prantl. f. Family : Cucurbitaceae 17) Citrullus colocynthis (L.)Schrad. g. Family : Geraniaceae18) Erodium laciniatum (Cav.) Willd.h. Family : Malvaceae19) Malva parviflora L. i. Family : Neuradaceae 20) Neurada procumbens L. j. Family : Nitrariaceae21) Nitraria retusa (Forssk.)Aschers.22) Peganum harmala L. k. Family : Papillionaceae23) Trigonella stellata Forssk. m. Family : Polygoniaceae 24) Rumex versicarius L. n. Family : Resedaceae25) Oligomeris linifolia (Vahl)Macbr.q. Family : Solaneaceae 26) Lycium barbarum L.r. Family : Tamaricaceae 27) Tamarix florida Bge.28) Tamarix macrocarpa (Ehrenb.)Bge.u. Family : Zygophyllaceae29) Fagonia glutinosa Del. 30) Zygophyllum coccenium L. The present research focused on many anatomical characters and studies comparatively, such as epidermis types, stomatal complexes, leaf venation, cross sections of root, stem and vertical sections of leaf blades. Different cross sections were shows variability cuticle thickness and epidermis, vascular cylinder tissues, collenchyma and sclerenchyma in different species studies. Variations were noticed among these tissues in the variable species.Thickness of cuticle epidermis of leaves were variable, and unifacial and bifacial mesophylls were noticed for the first time in some species studies. Some cross sections were obtained for scale leaves in Tamarix florida, Tamarix macrocarpa, Halocnemum strobilaceum, Haloxylon salicornicum and Salicornia herbacea.The anatomical characters of these plant parts has not been studied before for these species, at least for Iraqi specimens. The following species Launaea capitata, Oligomeris linifolia and Zilla spinosa were glabrous in all vegetative and reproductive organs. In time that the other species, Haloxylon salicornicum , Salicornia herbacea, Launaea mucronata, Reichardia tingitana, Strigosella grandiflora , Peganum harmala, Lycium barbarum, Tamarix florida and Tamarix macrocarpa were glabrous just in the vegetative parts, but hairy (pubescent) in the reproductive organs. The indumentums was variable in thickness within variable plant organs and parts, even on the lower and upper leaf surfaces. Different kinds of crystals were found and verified in the stems and leaves of different species. Size and density of these crystals were variable in variable locations of stem and leaf tissues.. Geographical distribution was investigated for all the studied species using Iraqi satellite maps by GIS program. Neotorularia torulosa was the most distributed species, and Rumex versicarius was the least distributed one. Schedules, schemes, illustrations and micrographs were presented for the different species studied in this work. Lastly results were discussed depending on available references and reasons.

دراسة تصنيفية لانواع الجنس Echinops L. (Compositae) في العراق == Comparative And Systematical Study of The Genus Echinops L. (Compositae) In Iraq

اسم المؤلف: سكينة عباس عليوي
اسم المشرف: علي حسين عيسى الموسوي
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: النبات
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تناول البحث الحالي دراسة تصنيفية مقارنة لانواع الجنس Echinops L. في العراق حيث شملت الصفات المظهرية والتشريحية وحبوب اللقاح، وكذلك البيئة التوزيع الجغرافي فضلا عن المعاملة التصنيفية. شملت الدراسة المظهرية دراسة صفات الجذور والسيقان والاوراق والرؤوس الزهري | The present investigation dealt with comparative systematic study of the genus Echinops L. (Compositae) in Iraq.The work involved comparative morphological and anatomical characters, in addition to palynology, ecology, geographical distribution and taxonomic treatment for these species. Morphological characters of roots, leaves, involucre bracts, inflorescence, in addition to, indumentum variations were discussed and the study concluded that stems, leaves, involucres bracts, especially the inner most layer characters were useful aid in distributing species of the genus. Comparative anatomical characters were used, such as characters of leaves, epidermis stomatal complexes, variation patterns, cross sectionings of stems, leaves as well as L.S of growing points. The study revealed that the anatomical characters are important taxonomically. The present investigation observed that pollen grains of all species were tricolporate and echinate. The taxonomic important of grains characters were assessed of the species. Maps of geographical distribution were prepared for all species studied. The study shown that most species were distributed in the North area of Iraq and a few species of the genus were distributed in the East and South of Iraq. In conclusions, (11) species of the genus Echinops were recognized in Iraq. Taxonomic treatment was carried out for all Echinops species and key was designed for them

التمنيع باضداد الخمل النوع الاول المنتجة من بكتريا الاشريكية القولونية المسببة لالتهاب المجاري البولية ضد استيطان واصابة المثانة == Immunization With Type 1 Fimbriae of Uropathogenic Escherichia Coli Against Colonization And Infection of Bladder

اسم المؤلف: اروى علي شكر
اسم المشرف: رسمية عبد ابو ريشة
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: Between September and November 2013 a total of 140 urine specimens obtained from patients in Al - Kadhmiah Teaching Hospital, Ibn - Al Naffees Teaching Hospital, and Educational Laboratories in Medical city. These midstream urine specimens were obtained from patients clinically suspected to have urinary tract infection (UTI) in sterilized containers. All specimens were processed immediately after collection.A total number of 140 specimens of mid - stream urine were collected from patients suffering urinary tract infection symptoms. These isolates were obtained from 41 male and 99 female patients. They were distributed in the age group of 5 - 60 years old. All specimens were identified using biochemical tests and API 20 E system. 60 (42.85%) of urine specimens was Escherichia coli and 15(10.71%) of specimens growth was Klebsiella spp. and 25(17.85%) growth was Proteus spp. and 40 (28.57%) was G+ve bacteria.The adherence ability of E.coli isolates were evaluated by using Congo red agar and detected their ability to produce biofilm by using methylene blue staining technique in polystyrene microtiter plates and then Optical density was determined at 580 nm.All sixty isolates of E.coli were grown on Congo red agar medium to detect their adherence ability. Twenty (33.3%) isolates were given negative result by forming pink colonies on congo red agar, were as, forty (66.6%) isolates were given positive result by forming black colonies with a dry crystalline. Three isolates give strong results E.coli (13, 8, and 40). Consistency indicated biofilm production by microtiter plate. E. coli 40 which isolated produced the thickest biofilm (O.D. : =3.17).Type 1 fimbriae expression by E.coli 40 isolate was detected by mannose - resistant hemagglutination (MRHA) of human blood group (O) IRBCs in the presence of 2% D - mannose. The isolate showed strong MRHA characteristics of type 1 fimbriae under microscope (40x). The E.coli E.40isolate which produced the thickest biofilm and gave strong MRHA was elected to be the source of type 1 fimbriae.Type 1 fimbriae was extracted by heating and mechanical shearing and partially purified by Ultracentrifugation (48, 000xg for 3hrs). SDS - PAGE with a molecular weight 20, 000 Dalton.Anti - type1 fimbriae antisera were prepared in rabbits. The specificity and titration of anti - type1fimbriae antibodies were determined using IgG protein by radial immunodiffusion plate and bacterial agglutination. IgG antibodies to fimbriae type 1 were also detected in rabbit sera from immunized rabbit and non - immunized. Immunized rabbit test 1 had increases in Fim1 - specific IgG antibodies (9.5) mg/dl. Immunized rabbit test 2 had increases in Fim1 - specific IgG antibodies (8.6) mg/dl. The non - immunized rabbit had no increase in absolute IgG antibodies to Fim1.The antisera agglutinated bacterial cells up to 1/80 dilution confirming the presence and titer of specific antibodies against type1 fimbriae.The microtiter plate method was applied to estimate the role of the prepared anti - type1fimbriae antibodies in reducing the biofilim formation by E.coli. Prevention of bacterial adherence and subsequent biofilm formation to polystyrene microtiter plate was studied by employing different dilutions (1/10, 1/20, 1/40, 1/80, 1/160, 1/320, 1/640) of rabbit sera containing anti - type 1 fimbriae antibodies. The maximum inhibition of biofilm formation in terms of optical density (580 nm) was found in lowest dilution (1/10) (highest concentration of Abs). However, the minimum inhibition was observed in highest dilution of rabbit antisera (1/640) (lowest concentration of Abs). Here the inhibition occurs in a dose dependent manner as the biofilm formation increased dramatically with increasing in antisera dilution. The results also showed that there is a significant difference(P<0.05) among data treated with sera and data without sera and among serial dilutions.General urine examination and culture for urine that absorbed from test 2 and control was done (GUE) show that pus cell in urine was (1 - 2/HPF). There was no growth of bacteria in urine culture.The Histological section show that the Control and test 1 rabbit (have been immunized with fimbriae and adjuvant and injected with E.coli intra muscular) and Test 2rabbit (that has been immunized with fimbriae and adjuvant and injected with E.coli directly in bladder has normal epithelial cells and mucosa.

العلاقة بين انتاج الانزيم المحلل للكولاجين وتكوين الغشاء الحياتي بوساطة بكتريا Pseudomonas aeruginosae == The Relationship Between Collagenase Production And Biofilm Formation By Pseudomonas Aeuroginosa

اسم المؤلف: امال عزيز كريم السعدي
اسم المشرف: شذى سلمان الطحان
الموضوع العام: علوم الحياة
السنة: 2014
الدرجة: دكتوراه
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: A total of 359 samples divided as 228 clinical and 131 non clinical specimens were collected during 2012 from four hospitals in Baghdad city including : Al - Kadhymia Teaching hospital, Baghdad Teaching hospital, The Burn Specialist Hospital and Al - Imam Ali hospital, for isolation of P.aeruginosa to study the correlation between collagenase production and biofilm formation. Eighty two Pseudomonas isolates were screened for biofilm formation, 28 isolates were classified as strong biofilm formers, 25 as moderate and 27 as weak biofilm former. The 28 isolates were identifid by VITEk - 2 Compact system which confirmed that the isolates were P.aeruginosa. Collagenase production assay was used to screen 28 isolates that were strong biofilm formers inorder to detect the ability of these isolates to produce collagenase, the substrate of collagenase (collagen) was purified localy from bovin tendon and the results showed that just 8 isolates could grow in mineral salt media with collagen after 4 days of incubation. The factors affecting biofilm formation and collagenase production were studied to determine the optimual conditions for their production, those factors included : 1 - Nitrogen sources represented higher influence on collagenase production specialy (yeast extract) in media containing collagen than other media without collagen as a substrate. The specific activity differed between the 8 isolates, biofilm formation also became more pronounced with (yeast extract), while NH4Cl and NaNO3 depressed biofilm formation at the same conditions. The statistical analysis between the two parameters (biofilm and collagenase) according to different nitrogen sources demonstrated highly significance at p?0.01 with yeast extract and casein. 2 - pH, results showed that the best pH for production was 7 for both collagenase and biofilm.The statistical analysis for determination the relationshipe between the two parameters showed highly significance at p ?0.01 for different pH. 3 - The maximum production of the two parameters was at 35?C temperature which gave highly significance at p?0.01 with defferent temperature. 4 - Long incubation periods revealed increasing in collagenase production and biofilm formation which represented highly significance detween them when incubation periods were prolonged at p?0.01. Results of this study showed that collagenase production increases when bacteria switch from a planktonic to biofilm phenotype. This indicates that biofilms and collagenase are more virulent and have a greater ability to cause tissue destruction. The REP - PCR analysis using BOX - primer, showed a clusters genetic relatedness among the isolates. The isolates were grouped according to the REP - PCR in 9 different genotypes, named cluster 1 to 3 which included C1, C2, C3 with relatedness : 8 (80%), 8 (86%), 3 (80%) respectively. A19 and A20 both of them were not included in any cluster, they have 78% similarity.The REP - PCR analysis showed that the genotypic relatedness is consistently high between the 8 producer isolates and non producer isolates (13), showed similarity reached 86

التحري عن الاميبا الحالة للنسج/ الاميبا المتغايرة Entamoeba histolytica/Entamoeba dispar في عينات البراز للمرضى با ستعمال تقنية PCR == Detection of Entamoeba Histolytic /Entamoeba Dispar In Stool Specimens By Using PCR Technique

اسم المؤلف: بثينة عبد الحمزة حسون الزبيدي
اسم المشرف: اخلاص مشرف عيدان
الموضوع العام: علوم الحياة
السنة: 2013
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تسلط الدراسة الحالية الضوء على تشخيص وتحديد نسبة الاصابة بطفيلي الاميبا المرضية المتمثلة بالاميبا الحالة للنسج Entamoeba histolytica وتمييزها عن الاميبا غير المرضية المتمثلة بالاميبا المتغايرة Entamoeba dispar اللتين تتمايزان بشكلهما المتماثل في كلا الطور | This study sheds light on the determination and diagnose of the percentage of infection of like Entamoeba histolytica and differentiate it from the non pathogenic Entamoeba dispar that were morphologically identical in both cysts and trophozoite phase in two different groups : the first group includes 50 stool samples of patients suffering from diarrhea and abdominal pain (symptomatic group) while the second group includes 95 stool samples of patients not suffering from diarrhea and abdominal pain (Asymptomatic group).In addition to that, 20 stool samples were collected from healthy individuals as a control these samples were collected patients of AL - Zafaranyia General Hospital and AL - Alwyia Childhood Teaching Hospital in Baghdad from July, 2011 to May, 2012.These samples belong to different ages (1 year - < 50 years) of different sexes (males and females). Entamoeba samples were diagnosed by using two methods : the first one is the wet mount as a General Stool Examination(GSE) after macroscopic examination for sample and classifying them according to their consistency (solid, semisolid and liquid) and color (brown and yellow) and presence of blood and mucous in addition to diagnosing them microscopically to detect the presence of pus cells and both phases trophozoite and cyst for Entamoeba histolytica.While the second method that was depended in diagnosis is duplex polymerase chain reaction (dPCR) by using two pairs of genes for detection of their amplification in DNA sample isolated from stool. The first pair is cystein proteinase which represents one of virulent factors in Entamoeba histolytica parasite as a tissue invader. The second pair encodes the surface antigen present on the surfaces of both parasites E. histolytica and E. dispar. It is represented by Actin gene (Act). The results of the wet mount showed that in percentage of infection of both species (E.histolytica/E.dispar) the (54%) of patient symptom and (34.37%) patient a symptom.While results of the specificity and sensitivity showed that in positive sample wet mount negative PCR while negative sample wet mount showed that positive PCR and higher percentage of infection the Entamoeba dispar. While the results of the dPCR showed that in spite of the presence of both species Entamoeba pathogenic (Entamoeba histolytica) and non pathogenic Entamoeba (Entamoeba dispar) , the percentage of infection of Entamoeba histolytica was lower than that of Entamoeba dispar. This was clear by the detection of amplification the Reaction producets (dPCR) by using both genes : Actin &Ehcp5 where only 8 samples were detected and they were found to be positive amplification Ehcp5 and 31 samples were positive amplification in both groups of patients (symptomatic and a symptomatic). The percentage of infection in females was higher than that in males for all ages when using both tests (wet mount & PCR). More over the patients with less than (10) years old had higher percentage of infection in both sexes.In conclusion, it should not be depended on direct wet mount technique for the identification of infected parasite Entamoeba histolytica and differentiating it from Entamoeba dispar because of their high homology. That the molecular examination is the only method that is able to determine the kind of infection with parasite Entamoeba

انتاج انزيم السيليلز من عزلة محلية لبكتريا B167 Streptomyces sp. واستخدامه في انتاج الوقود الحيوي == Cellulase Production From Local Isolate of Streptomyces Sp.B167 And Its Application In Biofuel Production

اسم المؤلف: بنان محمود سليمان
اسم المشرف: ناظم حسن حيدر
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: هدفت الدراسة الحالية الى انتاج انزيم السليليز من بكتريا الستربتومايسس ودراسة تاثير بعض الظروف الزرعية على انتاج الانزيم; انتاج الوقود الحيوي من المخلفات السليلوزية من خلال التحلل المائي للمخلفات بالاحماض والانزيمات المايكروبية. تم غربلة 74 عزلة لبكتريا St | The current study was aimed to produce biofuel from cellulosic waste material degraded by local isolate Streptomyces. Seventy four isolates of Streptomyces were screened for cellulase production in solid and liquid media. The results showed higher capability of isolate Streptomyces sp. B 167 for cellulase production and bioconversion of cellulose. Therefore, it was selected for further studies. The results of optimization revealed that the cellulase enzyme productivity by the isolate Streptomyces sp. B 167 reached to 2.1 and 2.28 U/ml after 48 h of incubation time and pH 7 respectively. Cellulase productions in tested isolate improved (2.57 U/ml) by supplementation of cellulose liquid medium with 1 % of yeast extract as nitrogen source. Additives of carbon sources like (manitol, glucose, maltose, sucrose and starch) to the process of saccharification did not improve the cellulase productivity. The bioconversion of cellulosic waste to reducing sugar was maximum with Banana peels (77.78 %) followed by the rice husk (75.56 %), orange peels (71.11 %), corn steep peels (60.0 %) and lowest bioconversions (53.33 %) were recorded with sawdust. The degradation of cellulosic waste increased with increasing substrate concentration. Maximum cellulase productivity (3.18 U/ml) and bioconversion (86.1 %) was obtained at 3 % (w/v) of cellulosic waste (Banana peels). Saccharification of cellulosic waste with different treatment methods was studied. The pretreatment of cellulosic waste with 1 % HCl and H2SO4 produces 21 and 15.8 g of reducing sugar / 100 g of cellulosic waste. In comparison, hydrolysis with Streptomyces sp. B 167 enzymes resulted a significantly higher amount of reducing sugar yield (25 g / 100 g cellulosic waste). Further fermentation of cellulosic hydrolysates was performed using Saccharomyces cerevisiae using stationary fermentation condition. Maximum yield of ethanol were (0.30, 0.19 and 0.10 g ethanol / g glucose) observed with Streptomyces sp. B 167 enzymes, HCl and H2SO4 hydrolysates respectively after 48 h of fermentation

التحري عن عدد من المعادن الثقيلة والتلوث البكتيري في بعض الخضروات المعلبة والطازجة المستوردة في مدينة بغداد == Determination of Several Heavy Metals And Bacterial Contamination In Some Imported Canned And Fresh Vegetables In Baghdad

اسم المؤلف: حسين خالد نعمان
اسم المشرف: ايثار كامل الميالي
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: البيئة - التلوث البيئي
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: تم اخذ ستة وثلاثين عينة من الخضروات المعلبة وخمس عينات من الخضروات الطازجة, وتجميعها من مناطق واسواق مختلفة من مدينة بغداد بشكل عشوائي خلال الفترة من شهر تشرين الاول 2013 الى شهر نيسان, 2014 حيث تضمنت الدراسة التحري عن تراكير بعض العناصر الثقيلة وهي (الرص | In this study, thirty six samples of canned vegetables and five samples of fresh vegetables were collected randomly from different markets of Baghdad city from October 2013 till April 2014. The study included determining of the concentration of some heavy metals (lead, nickel, zinc and iron) by atomic absorption spectrophotometery and the bacterial contamination in samples, also comparing the canned vegetables with fresh vegetables. It was found that the higher concentrations of heavy metals in canned vegetables as the following : lead 1.179 µg/g in olive, nickel 0.908 µg/g in olive, zinc 10.143 µg/g green pea and iron 90.601µg/g in white asparagus. The lowest concentrations were as the following : lead 0.002 µg/g in green asparagus, nickel 0.019 µg/g in mushroom, zinc 0.528 µg/g in white asparagus and iron 4.061 µg/g in green pea. In fresh vegetables, it was found that the highest concentrations of heavy metals were as follows : lead 0.919 µg/g in green pea, nickel 1.108 µg/g in green pea, zinc 4.304 µg/g in mushroom and iron 43.618 µg/g in tomato. The lowest concentrations were as the following : lead recorded 0.011 µg/g in tomato, nickel recorded 0.022 µg/g in tomato, zinc 0.876 µg/g in green pea and iron recorded 11.081 µg/g in green pea. The identification of the bacteria done by some identification tests for gram negative bacteria, the testes include growth on MacConkey agar, growth on EMB agar, IMViC testes and motility test. The identification tests for Gram positive bacteria included growth on manitol salt agar, growth on staph 110 agar and motility test. The bacterial tests ensured that there is no bacterial growth was detected in the canned vegetables, except some samples (white asparagus, green asparagus and mushroom) of December 2013, while it was detected in fresh vegetables. The bacterial species that isolated in these samples were E.coli, Klebsiela pneumoniae, Bacillus cereus and Staphylococcus aureus.

التاثير التثبيطي لبعض المستخلصات على فعالية انزيم Angiotensin converting enzyme وبعض المؤشرات الحيوية المساهمة في ارتفاع ضغط الدم == Inhibitory Effect of Some Plant Extracts On Angiotensin Converting Enzyme Activity And Some Biochemical Marker That Associated With Hypertension

اسم المؤلف: رؤى اياد يوسف
اسم المشرف: غازي منعم عزيز | حسن فياض
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: التقنيات الاحيائية
الدرجة: ماجستير
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: The present study was sought to investigate the inhibitory effect of four crude aqueous plant extracts : Zingiber officinale Roscoe (ginger), Camellia sinensis (Green tea), Olea europaea (Olive) and Hibiscus sabdariffa (Rosella) on key enzyme linked to hypertension, Angiontensin - I Converting enzyme (ACE), and on the oxidant/antioxidants status, lipid profile in vitro and in vivo studies. Study of some biochemical biomarker demonstrated that antioxidant enzyme, oxidant enzyme, liped profile and ACE level for 75 hypertension patients. Antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx) were shown to have cross relationship with ACE level in hypertension groups, while lipid profile have positive relationship with ACE level in hypertension groups. ACE activity for the four groups G1, G2, G3, G4 were 19.61±3.97, 21.3 ± 1.95, 28.06 ± 5.34 and 32.74±8.19 ng/ml respectively. From these results we concluded that ACE was associated with hypertension and its modulated by drug or herbal extracts. Angiotensin - I Converting enzyme was extracted from sheep lung with specific activity 0.08 U/mg, then the crude ACE extract was concentrated with sucrose by dialysis with specific activity 0.1 U/mg, purification fold was 1.25.The enzyme was purified partly by ion - exchange chromatography using DEAE - cellulose with specific activity 0.5U/mg, yield 30% and purification fold 6.25. ACE activity was determined using N - [3 - (2 - furyl) acryloyl]L - phenylalanyl glycyl glycine (FA - PGG) as a substrate. Results for in vitro ACE inhibitory activity using plant extracts (ginger, green tea, roselle and olive) showed that the all four crude aqueous plant extracts had inhibitory activity in different values when used in the same concentrations about (1 mg/ml), and ginger extract possessed higher inhibitory activity than other three extracts. The ACE inhibitory potency of the ginger extract was found to be significant (P<0.001) when compared with the standard anti - ACE inhibitor drug (Captopril) at the same concentration. The inhibitory activity of ginger extract with different concentration (25, 50, 100 mg/kg) in L - N - ? - nitro - L - arginine methyl ester (L - NAME) induced hypertensive mice was evaluated. Acute oral administration with L - NAME 50mg/kg.b.w causes a rise in blood pressure in normal mice. Administration of aqueous ginger extract (25, 50 and 100 mg/kg) for 4 weeks in L - NAME treated mice significantly (P<0.05) reduced the mean arterial blood pressure compared with L - NAME animals without treatment, with decreasing the serum levels of ACE; while the activity of superoxide dismutase (SOD) and glutathione peroxidase(GPx) showed a significant elevation in ginger treated L - NAME induced hypertensive mice. The results suggest that ginger extract could prevent the development of high blood pressure induced by L - NAME probably can be attributed to prevent or reduce the oxidation process and the inhibition of physiological processes of a substance L - NAME and so as it contains ginger compounds of polyphenols, which inhibits the activity of the ACE and prevent oxidation of fats and repair System Antioxident. Our study concluded that ginger might act as a natural alternative to better and safer in the prevention of negative impacts and risk factors such as high blood pressure and lipids.

تاثير انزيم SNase المنقى من العنقودي في الغشاء الحياتي للايشيركية القولونية والكليبسيلا الرئوية == Impact of Snase Purified From Staphylococcus Aureus On Biofilm of Klebsiella Pneumoniae And Escherichia Coli

اسم المؤلف: هند تحسين ابراهيم
اسم المشرف: حارث جبار فهد المذخوري
الموضوع العام: علوم الحياة
السنة: 2014
الموضوع الدقيق: الاحياء المجهرية
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: الانكليزية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: SDS - PAGE showed that a single sharp band with an approximately 16.8 KDa molecular weight has been seen. A matter indicates that the enzyme is consistently pure. PCR technique was applied to approve the existence of nuc gene in S.aureus Nevertheless, only those which depicted positive results on DNase agar harboured nuc gene, as it is specified by single band appearance of nuc at assumed molecular weight (ca. 255 pb) of marker that being used. The current study findings highlighted the participation of SNase purified from S. aureus in significant (P< 0.05) preventing biofilm formation by E. coli and K. pneumoniae compared with untreated controls. Evidently, the inhibitory effect of SNase on biofilm formation is undoubtedly perceived, indicating the degradation of the structural major component of biofilm formation (i.e. extracellular DNA). Results revealed that SNase was able to significantly (P< 0.05) reduce the number of the uropathogens; E. coli and K. pneumoniae attached to the uroepithelial cells. 1 Chapter one : Introduction and literature Review 1. Introduction and Literature Review 1.1. Introduction Staphylococcus aureus is a persistent human pathogen that is responsible for a range of diseases that vary widely in clinical presentation and severity. The pathogenesis of S. aureus infection is a complex process involving a diverse array of secreted and surface - associated virulence determinants that are coordinately expressed at different stages of infection (Loughman et al., 2009). Escherichia coli is a genetically diverse species that causes a variety of infections which fulfill many or all of the proposed criteria for biofilmassociated infections (Kaper et al., 2004). Klebsiella pneumoniae is an opportunistic pathogen responsible for a wide range of nosocomial infections. One important factor associated with virulence in K. pneumoniae is its capacity to adhere to surfaces and form biofilms (Cruz et al., 2012). Bacteria often exist as sessile communities called biofilms which are exquisite structures caused by a genetically programmed developmental process. It is estimated that biofilms are involved in 65% of human bacterial infections, since cells in biofilms are 1000 times more resistant than cells in the planktonic state, making medical treatments fail (Shal? et al., 2011). Extracellular DNA (eDNA) plays a significant role in biofilm formation, as revealed by studies in several bacteria including E. coli (Nakao, 2012) and K. pneumoniae (Whitchurch et al., 2002); however, there is no definite proof on a cause - and - effect relationship between DNA release and biofilm formation (Beenken et al., 2012) or becomes a key component of the macromolecular scaffold in many different biofilms (Jakubovics et al., 2013). In rare cases eDNA has been shown to inhibit bacterial settlement. Therefore, it is possible that nuclease mediated eDNA degradation would therefore promote adhesion. Consequently, it is not clear whether microbial nucleases contribute to the gross biofilm structure in clinically relevant situations (Sheilds et al., 2013). 2 Chapter one : Introduction and literature Review All previous studies used both commercial bovine and recombinant human DNaseI in the disruption of medically important biofilms; whilst, extracellular nuclease of S. aureus (SNase) was used against biofilm of S. aureus themselves (Benenken et al., 2012b ; Kiedrowski et al., 2014). Thus, to date, the role of S. aureus exonucleases in biofilm of other bacteria remains unclear. However, in the present study SNase is used against biofilm of other bacterial species (viz. K. pneumoniae and E. coli). To address this, the following steps were undertaken : 1 - Investigating the negative impact of SNase extracted from S. aureus on K. pneumoniae and E.coli biofilm formation. 2 - Studying the preventive activity of SNase on the adherence of K. pneumoniae and E. coli on uroepithelial cell.

دراسة بيئية لبعض انواع صنف بطنية القدم الارضية في ثلاث محافظات وسط العراق == An Ecological Study For Some Terrestrial Gastropoda Species In Three Provinces Middle Iraq

اسم المؤلف: ايمان حسين عبد
اسم المشرف: عماد الدين عبد الهادي المختار
الموضوع العام: علوم الحياة
السنة: 2015
الموضوع الدقيق: البيئة
الدرجة: ماجستير
الجامعة: جامعة بغداد
اللغة: العربية
مكان الجامعة: بغداد
الصفحات الاولى:
المستخلص: اجريت الدراسة الحالية للتعرف على انواع صنف بطنية القدم الارضية المتواجدة في بعض محافظات وسط العراق (بغداد, بابل, كربلاء). اذ تم تسجيل الملاحظات الحياتية والتعرف على بيئاتها المفضلة وقياس العوامل البيئية ذات الاهمية. حيث تم تشخيص ثلاثة انواع وهي : Cornu as | The present study was conducted to identify the terresterial gastropoda species located in some provinces of middle Iraq (Baghdad, Babylon and Karbala). They were record Biological observations on their environment and learn about their prefer environments and to measure the important ecological factors. Three species were diagnosed : Cornu aspersum specie belong to Helicidae family, Monacha cantiana and Candidula gigaxii species belong to Hygromiidae family. Monthly sampling was conducted from (October 2013 - July 2014) of the three provincs on two sites per each provinc, Where the samples were collected randomly by five repeaters of one square meter once a month. The study also included soil ecological properties measuring : soil temperature, soil pH, Electrical conductivity, percentage moisture, organic matter content and soil texture.The results showed soil temperature values ranged between (8 - 30) C?, soil pH (7.33 - 7.96), Electrical conductivity (0.7 - 4.1) ds/m, percentage moisture (9 - 33) % , organic matter content (0.81 - 2.88) %. The results showed percentages rate for clay, silt and sand for Jadiriyah (38.39, 49.18, 12.43)%, Zafaraniya (36.66, 51.53, 11.81)%, Alexandria (37.93, 52.54, 9.53)%, Hindyia dam (40.54, 53.05, 6.41)%, Hosseinie (36.28, 45.81, 17.91)% and Twerij (37.79, 50.20, 12.01)%. Generally soil texture clay silt sandy soil for all study sites. The relative abundance of the studied species was recorded, The lowest value for Candidula gigaxii specie was 7.3 % in March in Hindyia dam, while the highest value was recorded for Cornu aspersum specie 75.0 % in December 2013 in Jadiriyah. Rates of population density (individuals / m 2) were calculated for the studied specimens and the results showed the presence of significant differences when comparing the study sites during research period. The population density rates for species the results showed the lowest value for Candidula gigaxii specie 0.4 (individual/m²) in October 2013 in Jadiriyah, and the highest value for Cornu aspersum specie 19.4 (individual/m²) in Janeuary 2014 in Jadiriyah. The results showed that Candidula gigaxii specie is found in sites (Jadiriyah, Zafaraniya, Hindyia dam(along research period, While the results did not record the presence of it in sites (Alexandria, Hosseinie, Twerij).The study showed presence of positive and negative significant relationships between species and soil ecological properties, as it were for Cornu aspersum specie negative significant relationship with air and soil temperature (0.827, 0.763) respectively, positive significant relationship with moisture and organic matter content (0.703, 0.880) respectively, while the results did not record significant differences with pH and Electrical conductivity (0.096, 0.168) respectively. Monacha cantiana specie has recorded negative significant relationship with air and soil temperature (0.431, 0.553) respectively, positive significant relationship with percentage moisture and organic matter content (0.368, 0.550) respectively, while did not record significant differences for pH and Electrical conductivity (0.214, 0.096) respectively. The results showed for Candidula gigaxii specie negative significant relationship of air and soil temperature (0.504, 0.322) respectively, positive significant relationship with moisture and organic matter content (0.380, 0.569) respectively, While did not record significant differences with pH and Electrical conductivity (0.088, 0.170) respectively.

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

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

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

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

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

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

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

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

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

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

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

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

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

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