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التشخيص الجزيئي لعزلات بكتيريا Bacillus spp المعزولة محليا و كفائتها على انتاج مضادات حياتية == Molecular Identification of Bacillus spp. Bacteria That Isolated Locally and Efficiency of antibiotic production

Author name: نور محمد مسحول الغزي
Supervisor name: رحمن لعيبي جلاب الركابي
General topic: Biology
Specific topic: Microbiology - Bacteria
Degree: Master
Language: English
University location: Dhi Qar
First pages:

دراسة تجريبية وجزيئية للبكتريا المصاحبة لحالات الحروق في محافظة ميسان == Experimental and Molecular Study of the Bacteria associated with burns in Maysan Governorate

Author name: حسين علي دنانه البهادلي
Supervisor name: رحمن لعيبي جلاب | حيدر خميس شنان
General topic: Biology
Specific topic: Microbiology - Bacteria
Degree: Master
Language: Arabic
University location: Dhi Qar
First pages:
Abstract: Burn injuries are considered as health problems that may sometimes lead to rapid death. Bacteria are considered as the most important causes of microbial infection associated with burns. In present study, 75 clinical samples were collection from patients with burns for the period from October 2015 to June 2016 from the lobby burns in Sadr Teaching Hospital in the Maysan Governorate, these burn swabs revealed 56 bacterial isolates, 41 (73.21%) were Gram - negative bacterial, distributed of (35.71%) Pseudomonas aeruginosa, (28.57%) Klebsella Pneuomonia, (3.57%) Escherichia coli ,Enterobacter (5.35%). On the other hand 6(10.71%)were Gram - positive bacterial. out of 75 burned swabs, 84% revealed a single pathogens and 16% shown a mixed bacteria. On the other hand, Antimicrobial susceptibility for the bacterial burn isolates revealed that P. aeruginosa was resistant to routine tested antibiotics, like Amoxicillin, Gentamycin and Tobramycin in 100%, While was resistance to Ciprofloxacin 85%, while most P. aeruginosa was sensitive to Ceftizmiden in 50%. Results also showed that Staph. aureus was resistant to Gentamycin, Tobramycin, and Levofloxacin in 50% respectively.Depending on the rate of injury burns microbial and resistance to antibiotics used, p.aeruginosa and Staph.aureus isolated from the burnswere chosen and study their role in the events of infection, experimental burns, and for this purpose has been the use Albino mouse male as a model for a pilot study for pathogenesis and progress associated with the infection of the disease bacterial burns. (33) male mice were divided into tow groups, the first group(24) mice were burned (deep dermal second degree) and infection by 0.2X108 cfu kg of elected isolates, the route of infection was subcutaneously and scratching within burned area. In the second group six were infected without burn, which was considered as positive control, while in the thirdgroup three mice were burned and injected by 0.2ml of normal saline and consider as negative control .the first group was subdivided into two subgroups (12) mices for each burn dominant pathogens, then divided into subgroups each of six mices and following up (3,7, days intervals post infection process). P.aeruginosa burned mice group, shown skin infection more progressive and more severity in comporning with group infected by Staph. aureus, In addition, they were significant increases in the body temperature of all infection burned mice group(p.value)compared with those pre - infection process. Reisolation of bacteria from infection mice organs revealed, that high percentages in experimental p.aeruginosa burned model comparison with Staph. aureus.Diagnosed bacterial isolates by API 20and Vitek compact system, in addition to molecular diagnostics using PCR technique for the detection of 16S rRNA gene, All isolates showed a positive result of this gene. The amplified 16S rRNA gene seguence was compared with the seguence in NCBI seguence database.the bacterial strain identified as P.aeruginosa EPSI. This study reflects the usefulness of sequence analysis of the 16S ribosomal RNA gene in identifying bacteria and determining bacterial diversity. Various techniques that are based on utilizing the 16S rRNA gene are discussed. Of critical importance is the use of massively parallel sequencing to study bacterial diversity. Through massively parallel sequencing which is replacing traditional methods of bacterial identification; various bacterial habitats are surveyed to compile their species compositions.

عزل وتشخيص البكتريا المرضية مع ايلاء اهتمام خاص للبكترياStaphylococcus auerus المرافقة ل Cutaneous Leishmaniasis في محافظة ذي قار == Isolation and Identification Pathogenic Bacteri with Special Regard to Staphylococcus auerus Associate with Cutaneous leishmaniasis at Thi - Qar Province

Author name: رضاء الله مرتضى الاعظمي
Supervisor name: قاسم حسن وداعة
General topic: Biology
Specific topic: Microbiology - Bacteria
Degree: Master
Language: English
University location: Dhi Qar
First pages:
Abstract: The present study is designed to isolated and identification the pathogenic bacteria associated with Cutaneous leishmaniasis. Cutaneous leishmaniasis (CL) is a parasitic disease characterized by single or numerous ulcerations. This was study performed in Iraqi in Shatra general hospital and Al - hussein teaching hospital in Thi - Qar province 2016 - 2017.Total of 370 samples of suspected patients were taken and after examining them using geimsa stain , the positive were 186 males and 126 females then sterilize the area surrounding for ulcer , all samples were taken to (swab transport media) ,culture to MacConkey agar and blood agar after 24 hr of incubation at 37C ,after diagnosed by biochemical testing then species determined by API system. The positive results on culture media 92/312 , males 62 (67.4%) , female 30 (32.6 %).The total bacteria isolated from the lesions were in males and female staph auerus 52 cases (56.5%), Escherichia coli 8 cases(8.6%) , Bacillus cereus 6 cases(6.5%) , Pseudomonas. aeruginesa 5 cases (5.4% ), Strep. Pyogenes 6 cases(6.5%) ,Strepto.agalactiae 3 cases(3.3%).While other that isolated in males only and did not appear in females were aerobic bacteria ,Listeria moncytogenes 3 cases(3.4%) , Actinobacteria .spp 2 cases(2.2%) ,Klebsiella. Pneumonia 2 cases (2.2%) , Rodococcus .equi 1 cases (1.1%) , and anaeroberia bacteria ,Peptococcus niger 2 cases (2.2%) ,Peptostreptococcus .spp 2 cases (2.2%) .Then find bacteria that more presence more with cutaneous Leishmaniasis ,were it was staph. aureus therefore it were objected study antibiotic resistant .The present study demonstrates that Staph. aureus XIV isolates were resistant to methicillin 50 (96.15%), penicillin 48 (92.30%) , Clindamycin 37 (71.15%), ciprofloxacin 30 (57.69%) , Gentamicin 30 (57.69%),Amoxicalave 29 (55.76%), Azithromycin 25 (48.07%) , Amoxicillin 22 (42.30%), Tetracycline 21 (40.38%), Rifampin 10 (19.23%) and Vancomycin all staph .auerus are sensitive to Vancomycin The all 52 Staph. aureus isolates were further examined using polymerase chain reaction (PCR) for detection of (16SrRNA ,mecA and PVI gene ). 16SrRNA gene which were responsible for diagnosis ,where all isolates were positive to was 52\52 (100%) , mecA gene which were responsible for methicillin resistance this was detected in 52\52 (100%) . of Staph. aureus isolates and a part of virulence factors PVL gene was detected in 46/52(88.46%) of Staph. aureus isolates which are responsible to kill the leukocytes of human and other animals.

التوصيف المظهري والجزيئي للانواع البكتيرية المصاحبة لحالات الحروق في محافظة ذي قار == Phenotypic and Genotypic Charactrization of Bacterial species Assocuated with burn infections in ThiQar province

Author name: عبير هادي فرهود الحبيب
Supervisor name: رحمن لعيبي جلاب
General topic: Biology
Specific topic: Microbiology - Bacteria
Degree: Master
Language: Arabic
University location: Dhi Qar
First pages:
Abstract: هدفت الدراسة الحالية الى تشخيص الانواع البكتيرية المصاحبة لحالات الحروق والكشف الجزيئي عن الموروثه 16SrRNA في الانواع البكتيرية المشخصة واستخدام تقنية DNA Sequencing . تناولت الدراسة الحالية فحص ومعاينة 107 مريضا تم اختيارهم بشكل عشوائي (ذكور واناث) تراوحت اعمارهم بين 1 - 45 سنة من الراقدين في مستشفى الحسين التعليمي للمدة من حزيران - 2015 تشرين الاول 2016 اذ اجري الفحص السريري من قبل الطبيب المختص وتشخيص الاصابة على انها حالة حروق مرضية ناتجة عن اسباب مختلفة. جمعت 107 عينة مسحات قطنية Cotton swabs وزرعت على وسط اكار المكونكي ((MacConkey agar واكار الدم ((Blood agar والاكار المغذي ((Nutrient agar. شخصت العزلات عن طريق الاختبارات المظهرية والبايوكيمائية وعامل التشخيص API20E ونظام الفايتك ( (Vitek 2compactفضلا عن التشخيص الجزيئي باستخدام جين.16S rRNA واظهرت نتائج الدراسة الحالية وجود 117 عزلة بكتيرية تفوقت فيها العزلات السالبة لصبغة كرام ((Gram negative بنسبة 93.16% على العزلات الموجبة لصبغة كرام (Gram positive)بنسبة 6,83 وكانت نسب توزيع العزلات البكتيرية المشخصة Pseudomonas aeroginosa 32.47% , Klabseilla pneumonia 21.36% واقل نسبــة عزل كانـت لبكتريا Staphylococcus epidermidis بنسبة عزل 1.7% , في حين كانت نسب العزلات البكتيرية التالية Acinetobacter baumannii , Escherishia coli , . Enterobacter claocae ,Staphylococcus aureus , Burkholderia cepacia, Pruteus mirabillis, , Pantoea agglomerans بنسبة عزل. 12.36% , 11.1% , 5.12% , % 5.12 , 3.41% , 2.56 على التوالي.تناولت الدراسة الحالية بعض الجوانب الوبائية للحالات المصابة التي شملت معلومات عن المرضى المصابين بالحروق التي تضمنت الجنس , العمر , موقع السكن ونوع الحرق. وبينت النتائج ان عدد الحالات المشخصة كاصابات حروق للذكور كانت بنسبة 42.9% بينما كانت نسبة اصابة الاناث 57.%, تم تقسم المرضى الى عدد من المجاميع حسب الفئات العمرية. اعلى نسبة اصابة كانت في الفئة العمرية 9 - 1سنة بنسبة 54.2% وهي الفئة الخاصة بالاطفال تليها الفئة العمرية erishi29 - 20 بنسبة 20.56% واقل نسبة اصابة كانت في الفئة العمرية 49 - 40 بنسبة 4.67% وكانت نسب الفئات العمرية الاتية 19 - 10 , 39 - 30 بنسبة 11.21 , 9.34 على التوالي. اشارت النتائج الى ان حالات الاصابات المشخصة توزعت بنسب متفاوتة فيما يتعلق بنوع الحرق اذ كانت اعلى نسبة اصابة بالحروق بواسطة الماء المغلي Boiled water 38% تليها اصابة الحرق بواسطة لهيب الغاز Fire by gas flame بنسبة 28.9% واقل نسبة اصابة كانت لحروق الصدمة الكهربائية بنسبة 4.67%.اما فيما يتعلق بطبيعة ومكان السكن فقد اظهرت الدراسة ان اعلى نسبة اصابة كانت بين الافراد الذين يسكنون المناطق الريفية بنسبة 84.1% في حين كانت اصابات المركز بنسبة 15.88% . وجدت الدراسة الحالية ان نسبة الاصابة بالحوادث غير المقصودة كانت 86.9% في حين كانت الاصابات المقصودة 13% , لوحظ في الدراسة الحالية ان اعلى الاصابات بالحروق كانت تحدث في فصل الشتاء بنسبة 75.7% مقارنة باصابات الحروق في فصل الصيف 24.29% .اما بالنسبة الى اختبار فحص الحساسية فقد بينت نتائج الدراسة الحالية ان اكثر المضادات الحيوية فعالية ضد كل من البكتريا السالبة لصبغة كرامBacteria Gram negative والموجبة لصبغة كرام Gram positive هي Ceftazidin , Ciprofloxacin,Amicacin .واظهرت الدراسة ان اكثر العزلات مقاومة هي بكتريا P.aeruginosa التي اظهرت مقاومة لكل المضادات الحيوية بنسب متفاوتة. اكدت نتائج الدراسة الجزيئية لتضخيم جين 16SrRNA ان كل العزلات اعطت نتيجة موجبة لهذا الجين وان حجم الجين لكل الانواع البكتيرية كان 1500pb كذلك اكدت النتائج ان الحصول على500Pb من DNA Sequencing للجين 16SrRNA كافية لتشخيص الانواع البكتيرية كلا على حدة . ايضا تم مقارنة جميــــع نتائج DNA Sequencing للانواع البكتيرية (Pseudomonas aeruginosa ,Escherishi coli, Enterobacter cloaca , Proteus mirabillis, , Klebsiella pneumonia Staphylococcus.heamolyticus ,) التي اكدت تشابه نسب تتابع القواعد النيتروجينية مع نسب القواعد النيتروجينية المخزونة في البنك الجيني باستخدام برنامج MEGA6 Moleculas Evolutionary Genetics Analysis)) اكدت نتائج الدراسة الحالية على وجود 21 سلاله جديدة قيد التسجيل واعطيت الرمز TQU1 الى TQU12. | The present study addressed the examination and preview the 107 patients. who were randomly selected (males and females) and who ranged in age from 1 - 45 years old and have fallen asleep at the Hussein Teaching Hospital of the, period from Jon 2015 to November 2016. where he conducted clinical examination by a specialist doctor and diagnosed as a case of burns satisfactory result for different reasons. specimens were cultured on appropriated culture MacConkey agar, Blood agar and Nutrient agar, diagnosed isolates by phenotypic tests, Biochemical test, diagnosis factor API20E system Vitek 2 compact, as well as to molecular diagnostics, During this study, In total 117 bacterial isolates.109 isolates were Gram - negative bacilli and 8 were Gram - positive cocci. he distribution of bacterial isolates diagnosed Pseudomonas aeroginosa 32.47%, Klabseilla pneumonia 21.36% and the lowest rate was to isolate the bacteria by isolating Staph.epedermidis 1.7%, while the following bacterial isolates Acinetobacter baumennii, Escherishia coli, Enterobacter claocae, Staphylococcus .aueus, Burkholderia cepesa, Pruteus mirabillsi, Pantoea agglomerans by isolating : 12 : 82% , 11.1% , 5.12% 5.12% 3.41% 2.56 respectively. The present study addressed some of the epidemiological aspect of infected cases burns,which included information on patients with with burns, which included sex, age, residence location (place), burning type. The results showed that (42.9%) isolates were males and (57.%) were female.The most frequent patient were belonged to the 0 - 9 years old (54.2%) which is for children. 29 - 20 followed by isolation of 22 20.56% and less isolating rate was in the 49 - 40 age group. Created results also cases of infections diagnosed were distributed to varying degrees with respect to the type of cremation, where the highest rate of injury burns Boiled water 38%, followed by the burning by flames gas Fire 28.9%,Fire by gasoline flames (19.6%),Hot liquids (8.41%) and Electrical Shock(4.67%). As for the nature and place of residence have study found that the highest proportion of cases were among individuals who live in rural areas increased by 90 injured 84.1% while the injuries the center has reached 17 cases of burn injury by 10.88% ,Frequency of the manners of burning based on intention or accidentally was as follow : (86.95) of patients were burned accidentally and (13%) were intenion. Present results showed that the most frequent burning (75.7%)was occurred during winter. The lowest frequency (24.2%)was belonged to summer .So the most common time of burning of present was during winter. As for the screening test sensitivity was shown the results of the current study that the most effective antibiotics against both Gram - negative bacilli bacteria and Gram - positive cocci were Ceftazidin, Ciprofloxacin, Amicacin while most of isolates showed high resistance to Ticarkcillin, Gentamicin, Impenem. Where the highest proportion of resistant bacteria P.aeruginosa which showed high resistance to all antibiotics in different proportions. It showed the results of the molecular study to amplify the gene 16SrRNA that all isolates gave a positive result and it's within the range 1400pb - 1500 pb. Also it has been compared to the results of all the DNA Squencing bacterial species (P.aeruginosa, E.coli, E.cloaca, A.baumennii, P.mirabili), which confirmed its similarity ratios nitrogenous bases relay with nitrogenous bases ratios stored in the gene bank