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تاثير بعض العقاقير على عملية التعصبن واحداث تشوهات في جنين الفار الابيض Mus Musculus

Author name: فؤاد قاسم احمد حمدان
Supervisor name: نهلة عبد الرضا البكري
General topic: Biology
Specific topic: Zoology - Embryology
Degree: Doctorate
University: University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language: Arabic
University location: Baghdad
First pages:

التكوين الجنيني لجهاز فيبر في سمكة البني Barbus Sharpeyi G?nther

Author name: انعام خلف عيسى
Supervisor name: نهلة عبد الرضا البكري
General topic: Biology
Specific topic: Zoology - Embryology
Degree: Master
University: University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language: Arabic
University location: Baghdad
First pages:

التاثيرات المرضية النسجية لعقار ليفيتيراسيتام في التكوين الجنيني لكلى اجنة ومواليد وحوامل الجرذ الابيضAlbino rats (Rattus rattus) == Histopathological Effect of Levetiracetam Drug On The Kidney Development In Rats Embryo, Newborns And Pregnant Albino Rat (Rattus Rattus)

Author name: لمياء هادي محمد الابراهيمي
Supervisor name: نهلة عبد الرضا البكري
General topic: Biology
Specific topic: Zoology - Embryology
Degree: Master
University: University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language: Arabic
University location: Baghdad
First pages:
Abstract: الصرع هو حالة مزمنة تتميز بنوبات متكررة دون سابق انذار، سببها خلل في نقل الاشارات الكهربائية داخل الدماغ، وعقار Levetiracetam (LEV) من العقاقير المضادة للصرع، ذو خصائص دوائية ملائمة وتظهر فعاليته في تحسين السيطرة على النوبات، ويكون امتصاصه في البلازما سري | Epilepsy is a condition characterized by recurrent abrupt seizures episodes caused by the defect in the transmission of electrical signals to the brain. LEV is one of antiepileptic drugs which has appropriate pharmacological properties and show its effectiveness in improving the control of the epileptic seizers, its rapid absorbance, and its excretion through the kidneys by glomerular filtration and it is re - absorption into the tubular portion.Kidney arise from intermediate mesoderm and it consists of three execratory organs in all vertebrates : pronephros which is transient and present in all vertebrates, mesonephros which also present in all vertebrates embryos and their activity depends upon the type of embryo, and metanephros which is the functional kidney during life after the embryogenesis in reptiles, birds and mammals. The first signals for kidney initiation in albino rat embryo take place in the 10th days of pregnancy. The current study is designed to demonstrate the effect of LEV (350 mg/kg/day) on the kidney development of Albino rat fetus from the age of 8 - 18 days of pregnancy and its effect on the kidneys of the 3 and 7 days aged newborns. In addition to its effect on pregnant rat kidneys treated with the drug for 17 days. Hundred pregnant Albino rat (Rattus rattus) are enrolled in this study, classified blindly to 50 control and 50 pregnant rats are orally treated with LEV (350 mg/kg/day). The histological results of the current study revealed that there is no effect on embryonic kidney in fetuses aged 9 days of pregnancy, whereas, the pronephros of the fetuses aged 10 days shows death of the cells in comparison to control group. Moreover, the kidney of the 11th aged fetuses showed degeneration of the mesonephric duct represented by decrease cellular mass, death and hypertrophy of some cells comparing to the cells of control group. Concerning the kidney of the 12th aged fetuses and subsequent days, there is degeneration of the epithelial cells of the metanephros duct, their detachment from the basement membrane and their congestion in comparison to the cells of the control group. The kidney of the 13th aged fetuses showed swelling, damage for some of the epithelial cells of the glomerulus and collecting tubules, accumulation and shrinkage of glomerular cells, damage, death, and detachment of some collecting tubules cells demonstrated in the 14th aged fetuses. There enlargement of capsular space in addition to the most previous defects was seen in the 15th aged fetuses in comparison to the control group. Most of the previous defects are seen in the 16th, 17th and 18th age fetuses. Scanning electron microscope revealed nuclear enlargement of the podocytes found in the visceral layer of the renal corpuscle of the 16th aged fetuses (mean diameter 64.6 µm compare to 39.2 µm of the control group). Regarding the kidney of 3rd and 7th aged newborns, the histological defects seen in the latest aged fetuses was also seen and there was statistically significant differences (p?0.05) between the diameters mean of the glomerulus of the 3rd and 7th aged newborn. Whereas, there was no significant difference in the diameter of the kidney tubules of 3rd but there was significant difference of the 7th aged newborn. Regarding the kidney of the 17th day treated pregnant rat, there was enlargement of the capsular space caused by accumulation, and degeneration of glomerular cells characterized by loss of the nucleus, shrinkage of the glomeruli, and atrophy of most of them. Loss of the nucleus and detachment of the cells, and swelling of most of the collecting tubules. There was a statistically significant difference between the diameter of the kidney tubules of the pregnant rat and the control group. In conclusion, LEV had histological effect on the kidney of the 10 - 18 aged fetuses and on 3, 7 days aged newborns in addition to its effect on the kidney of the pregnant female treated with the drug for 17 days.

دراسة بعض مراحل التكوين الجنيني للعين في ضفدع الشجر Tree Frog Hyla arborea savignyi == Study of some stages of the Embryonic Development of the Eye in Tree Frog Hyla arborea savignyi

Author name: رؤى سليم عطيوي الراوي
Supervisor name: نهلة عبد الرضا البكري
General topic: Biology
Specific topic: Zoology - Embryology
Degree: Master
University: University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language: Arabic
University location: Baghdad
First pages:

دراسة تكوينية للسقف البصري Optic Tectum في طائر السلوى Coturnix coturnix japonica == Study on Development of Optic Tectum in Japanese Quail Coturnix conturnix japonica

Author name: احمد سلمان عبد الحسن الكناني
Supervisor name: انعم رشيد عبد الرزاق الصالحي | نهلة عبد الرضا البكري
General topic: Biology
Specific topic: Zoology - Embryology
Degree: Master
University: University of Baghdad - Ibn Al-Haytham College Of Education For Pure Sciences - Department Of Biology
Language: Arabic
University location: Baghdad
First pages: