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تحديد وحساب الخلايا البلعميه المعلمة بمادة (CD68) في مشيمية النساء الحوامل طبيعيا والمصابات بارتفاع الضغط الحملي == CD68 - labelled macrophages localization and counting in placentas of normal and pre - eclamptic women

Author name: لينا علي حسين
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الخلفيه : تتكون المشيمه خلال عمليه معقده ومنسقه بين الانسجه التابعه لبطانه رحم الحامل والانسجه الجنينيه المحيطه. يوجد في المشيمه عدد من الخلايا البلعميه (البالعه) والتي يبدا ظهورها تقريبا في اليوم العاشر من بدايه الحمل. تشمل الخلايا البلعميه المشيميه خلايا هوفباورالتي توجد ضمن الزغابات (جزء المشيمه من جهه الجنين) والخلايا البلعميه الساقطه التي تقع ضمن الساقط القاعدي (جزء المشيمه من جهه غشاء الرحم). تتبنى هذه الخلايا نمطا ظاهريا متخصصا يلعب دوررائيسيا في عمليه الترسيخ المشيمي والجنيني, اضافه الى دورها في تنظيم المناعه الذاتيه للجسم تحت عوامل بيئيه مختلفه. ان السلوك الشاذ لهذه الخلايا يمكن ان يؤثر على وظيفه الارومه المغذيه وعلى نمو المشيمه وربما يؤدي الى مجموعه متنوعه من نتائج الحمل السلبيه. تاثير كل من تعدد الولادات وارتفاع الضغط الحملي على وظائف واعداد الخلايا البلعميه المشيميه لايزال موضوع جدل حتى الان.الهدف من الدراسه : ١) تحديد اماكن وجود وحساب اعداد الخلايا البلعميه ضمن المشيمات التابعه لنساء حامل للمره الاولى ونساء متعدده الولادات في مجموعه السيطره(الحمل الطبيعي) ومجموعه (ارتفاع الضغط الحملي) باستخدام تقنيه الكيمياء النسيجيه المناعيه (CD68 الاجسام المضاده الاوليه), لمعرفه تاثير تعدد الولادات على اعداد هذه الخلايا في المشيمه.٢) دراسه تاثير تعدد الولادات على بعض المتغيرات العينيه والمجهريه ضمن المشيمات التابعه لنساء حامل للمره الاولى ومتعدده الولادات في مجموعه السيطره(الحمل الطبيعي) ومجموعه (ارتفاع الضغط الحملي).المرضى والطرق : تم جمع ثلاثون مشيمه مولوده لحوامل تتراوح اعمارهم بين (٢٧ - ٣٢) سنه. استخدمت ست مشيمات للدراسه التجريبيه الاوليه, في حين قسمت الاربع والعشرون الاخرى الى مجموعتين : مجموعه السيطره ومجموعه ارتفاع ضغط الحمل ثم تم تقسيم كل مجموعه وفقا لتعدد الولادات الى مجموعات فرعيه (حامل للمره الاولى ومتعدده الولادات), (ست مشيمات لكل مجموعه فرعيه).تم فحص المشيمات عينيا من حيث (الشكل, موقع ادخال او ادراج الحبل السري, المحيط, القطر, السمك المركزي). بعد تثبيت ومعالجه وتقطيع العينات النسيجيه , تم صبغها باستخدام صبغه (الهيماتوكسيلين والايوسين) لدراسه المتغيرات المجهريه التاليه : عدد كل من ( الزغابات, العقد الخلويه, الاوعيه الشعريه الجنينيه), بالاضافه الى استخدام تقنيه الكيمياء النسيجيه المناعيه (CD68 الاجسام المضاده الاوليه) لحساب اعداد الخلايا البلعميه الموجوده ضمن الزغابات الجنينيه وتلك الموجوده ضمن الساقط الرحمي للمشيمات, كما اشتملت الدراسه على اجراء التحليل الاحصائي.النتيجه : يتراوح شكل المشيمات لمجموعتي السيطره وارتفاع الضغط الحملي من الدائري الى البيضوي. نسبه الادراج المركزي للحبل السري ارتفعت في مجموعه السيطره وخصوصا في (متعدده الولادات), في حين لوحظ زياده الادراج الطرفي للحبل السري في مجموعه ارتفاع الضغط الحملي وخصوصا في (الحامل للمره الاولى). كان هنالك انخفاض ملحوظ في قطر المشيمه في مجموعه ارتفاع الضغط الحملي للحامل للمره الاولى وكان ذلك متوافقا مع تناقص محيط المشيمه لنفس المجموعه كما كان هنالك زياده ملحوظه في السمك المركزي لمجموعه ارتفاع الضغط الحملي. التحليل الاحصائي للفحص المجهري ,اظهر زياده في عدد الزغابات الجنينيه, العقد الخلويه, والاوعيه الشعريه الجنينيه التي توافق زياده اعدادها مع ارتفاع الضغط الحملي وزياده الانجابيه. الزياده في اعداد الاوعيه الشعريه الجنينيه كان ملحوظا في (الحامل للمره الاولى) لمجموعه ارتفاع الضغط الحملي. اظهرت دراسه الكيمياء النسيجيه المناعيه زياده ملحوظه في اعداد الخلايا البالعه ذات الخاصيه الايجابيه للجزئ المنشط للمستقبلات ((CD68 ضمن الزغابات والساقط الرحمي لمشيمات مجموعه ارتفاع الضغط الحملي كما لوحظ توطن الخلايا البالعه ضمن الزغابات الجنينيه بالقرب من جدار الاوعيه الشعريه والارومه الغاذيه الخلويه في مجموعه ارتفاع الضغط الحملي وخصوصا في (الحامل للمره الاولى). | Background : formation of placenta occurs through a complex and coordinated effort between the fetus’s extraembryonic tissues and the gravid endometrial tissues. Many macrophages are present in the placenta throughout pregnancy and they have been detected as early as day 10 of pregnancy. Placental macrophages include hofbauer cells of the fetal villi and decidual macrophages of the maternal decidua basalis. They adopt a specialized phenotype that may hold a key role in implantation, placentation and parturition in both regulating and executing the body's own immune response under various environmental factors. Aberrant behavior of these macrophages can affect trophoblast function and placental development and potentially can lead to a spectrum of adverse pregnancy outcomes. Yet, the population and functions of placental macrophages in women with different parity and women with preeclampsia remain ill defined and subject of controversy.Aim of study : - • Localize and count the number of hofbauer cells and decidual macrophages in placentas of primiparous and multiparous of control and preeclamptic groups by using an immunohistochemical marker CD68 to find if parity can influence the number of placental macrophages. • Studying the influence of parity on some macroscopical and microscopical variables in placentas of primiparous and multiparous women of control and preeclamptic groups.Patients and Methods : A total of 30 placentas were collected from delivered women who were aging between 27 - 32 years. Six of them were used for preliminary pilot study while twenty four one were used for experimental study. Experimental placentas were grouped into two major groups (normal and preeclamptic) and each group was further subdivided according to parity into primi and multi subgroups (6 placentas for each subgroup). The placentas were grossly examined for their (shape, site of insertion of umbilical cord, circumference, diameter and central thickness). Then tissue samples were fixed, processed, sectioned and stained by heamatoxylin and eosin stain to study the following microscopical variables : number of (villi, syncytial knots and fetal capillaries). Additionally, immunohistochemical technique (CD68 primary antibody) was used to count the number of placental macrophages at fetal villi and maternal decidua. Statistical analysis (SPSS version20) was used in this study. Result : Studying placentas had circular to oval shape. The percentage of central insertion of umbilical cord was increased in control group, mainly in multi one. While marginal insertion was increased mainly in primi preeclamptic. There was a significant reduction in diameter of placentas of preeclamptic group, mainly in primi and it was positively correlated with placental circumference. The placental thickness was significantly increased in preeclampsia.Statistical analysis for histological variables revealed an increased number of villi, syncytial knots and fetal capillaries with preeclampsia and parity. The number of fetal capillaries was significantly increased with preeclampsia (mainly in primi subgroup). Immunohistochemical study revealed a significant increase in number of CD68 positive fetal and decidual macrophages in preeclamptic subgroups. CD68 positive fetal macrophages were seen to localize near fetal vessel wall and near syncytium which were significantly increased in primi preeclamptic subgroup. Conclusions : There were definite changes and correlations between macroscopical and microscopical variables in placentas of primi and multi subgroups of normal and preeclamptic groups. Immunohistochemically, the number of CD68 positive fetal and decidual macrophages were significantly increased in preeclamptic group in which hofbauer cells were mainly increased in primi subgroup. This could be attributed to factors like hypoxia and immunological maladaptation. These factors can induce a recruitment of macrophages to express different functions depend upon their locations.

تتبع مسار الارومات العصبية من منطقة ما تحت البطين باتجاه البصلة الشمية في ادمغة الفئران البالغة == TRACING THE PATHWAY OF THE NEUROBLASTS FROM THE SUBVENTRICULAR ZONE TO THE OLFACTORY BULB IN THE ADULT MICE BRAINS

Author name: زينب زاهد سعدون
Supervisor name: هدى مهدي الخطيب
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: لقد تم العثور على خلايا جذعية عصبية فريدة من نوعها في المناطق الرئيسية لتكوين الخلايا العصبية في ادمغة البالغين،سميت هذه المناطق بالاعشاش العصبية واكبر هذه المناطق هو منطقة ماتحت البطين للبطين الوحشي. يشار الى عملية تكوين الخلايا العصبية بانها العملية التي من خلالها تقوم الخلايا الجذعية العصبية، وذريتها من الارومات العصبية في توليد خلايا عصبية جديدة في الوضع الطبيعي والمرضي. ان دراسة هذه العملية وتتبع نتائجها مفيدة في وصف سلائف الخلايا العصبية وهجرتها خلال مساحات مقيدة في ادمغة الثدييات البالغة.اهداف الدراسة التعرف على الارومات العصبية على طول جدار البطين الوحشي في منطقة ما تحت البطين في دماغ الفار البالغ وكذلك تتبع هذه الخلايا على طول مسار خاص من منطقة ماتحت البطين حتى البصلة الشمية يعرف هذا المسار بالتيار المهاجر المنقاري. تم ذلك عبر التصبيغ النسيجي العادي باستخدام الهيماتوكسيلين والايوسين(H وE) والتصبيغ المناعى النسيجي الكيميائي باستخدام الجسم المضاد antidoublecortin المتخصص بتحديد الارومات العصبية. المواد والطرائق تم تنفيذ الدراسة في مبنى الحيوان، كلية الطب / جامعة بغداد. من خلال جمع وتربية 36 من الفئران الاناث والذكورنوع (Micromys minutus)، اربعة منها حديثة ولادة استخدمت لعرض الشاهد الايجابي لعمل الجسم المضاد. ال32 الاخرى كانت بالغة (اكبر من 60يوم) استخدمت سبعة منها لاجراء الدراسة الاستطلاعية. ال25 الاخرى استخدمت لاجراء الدراسة الحقيقية حيت تم تثبيت ادمغتها من خلال ارواء مادة البارافورمالدهيد عن طريق القلب مع جهاز مضخة صغيرة تم تصنيعه محليا لهذا الغرض ثم الحصول على ادمغتهم مباشرة بعد ذلك. بعد تشريح الادمغة اكليليا وسهميا تم تثبيتها لمدة 20 ساعة في نفس المادة المثبتة المستخدمة في الارواء. تمت المعالجة بالتجفيف في درجات متزايدة من الكحول الاثيلي والتصفية في الكلوروفورم ثم الغمر في البارافين. تم الاجتزاء بواسطة مشراح، بعد ذلك تمت ازالة البارافين بواسطة الزايلين والاماهة بدرجات متناقصة من الكحول الاثيلي ثم التصبيغ بواسطة صبغة الهيماتوكسيلين والايوسين. للتصبيغ المناعى،تمت حضانة الاجسام المضادة الاولية antidoublecortin مع النسيج لمدة 2 ساعة وللاجسام المضادة الثانوية لمدة 1 ساعة بدرجة حرارة 30°, ثم اضافة صبغة الداب كخطوة نهائية. وقد تم القيام برؤية النسيج المصبوغ من خلال المجهر الضوئي النتائج في المستوى الاكليلي المار بالبطين الوحشي بمسافة 1 ملم امام اليافوخ الامامي، تم تحديد منطقة ماتحت البطين. بالتصبيغ النسيجي العادي الهيماتوكسيلين والايوسين (H and E) ظهرت هذه المنطقة كتجمعات خلايا مجاورة لخلايا البطانة العصبية. مع التصبيغ المناعي الكيمائي، استطعنا ان نثبت بان كتل خلايا من هذه التجمعات تمثل الارومات العصبية وذلك لاخذها الصبغة الايجابية للاجسام المضادة antidoublecortin. على الرغم من هذا فان مجموعة من الخلايا المحيطة بكتل الارومات لم تعطي التصبيغ الايجابي لهذا الجسم المضاد لكنها ظهرت بوضوح وهي تنتشر بين كتل الارومات العصبية. جرى تتبع هذه الارومات سهميا من منطقة ما تحت البطين. وقد وجد انها تشارك في مسارملتزم يدعى التيار المهاجر المنقاري ، يبدا من الطرف الامامي للبطين الجانبي وينتهي في منتصف الفص الشمي . الارومات في التيار المهاجر المنقاري تصطف عرضيا بشكل موازي لسطح الدماغ وتدعم بعضها البعض لتشكيل ما يبدو انه شريط سلسلي من خلايا ممدودة الشكل ذات انوية مغزلية غامقة محاطة بشكل وثيق من قبل خلايا اخرى متعددة الاشكال لم تاخذ صبغة الجسم المضاد antidoublecortin. وقد تم ملاحظة شكل مميز وواضح للسلسلة ابتداءا من منبعها وحتى نقطة انتهائها. تشكل السلسلة تيار منحني بشكل حرف S ينقسم الى اربعة اجزاء مميزة : القمع والطرف العمودي والمرفق والطرف الافقي. علاوة على ذلك , تتخذ الارومات العصبية معالم شكلية مختلفة على طول الاجزاء الاربعة للتيار حيث يتغير شكلها من الشكل الممدود والانوية المغزلية في القمع والطرف العمودي الى الشكل البيضوي الاقل انتظاما في المرفق ثم الشكل الكروي في الطرف الافقي . غير التيار المهاجر المنقاري وضع الهجرة بالقرب من قطبه المنقاري من الوضع العرضي الى الوضع الشعاعي الذي تدخل به الارومات العصبية داخل البصلة الشمية. بالاضافة الى ذلك خضعت الارومات العصبية في التيار المهاجر المنقاري للانقسام الخيطي مما ادى الى زيادة عددها بالقرب من نهاية التيارالمهاجر | adult brain, these regions called neurogenic niches, the larger of which is the subventricular zone (SVZ) of the lateral ventricle. Adult neurogenesis is referred to the process in which neuronal stem cells, and their progeny the neuroblasts; generate new neurons in physiological and pathologic conditions. The study of this process and the tracing of its consequences are beneficial in describing the precursors of neurons and its migration through restricted territory in the adult mammalians brains. Aims of studyTo identify the neuroblasts, along the wall of the lateral ventricle, the SVZ, in the adult mouse brain and to trace them from the SVZ to the OB along the special pathway, the Rostral Migratory Stream (RMS), using routine stains the Hematoxylin and Eosin (H and E) and immunohistochemical staining with antidoublecortin antibody, the specific marker of the neuroblasts. Materials and methodsThe study have been executed at the animal house of College of Medicine \ Baghdad University; by collecting and breeding 36 male and female mice (Micromys minutus), 4 of them were neonates used for demonstrating positive control for the antibody, and the other 32 were adults (< 60 days old), seven of them were used for pilot study. The other 25 were used for proper study. They were perfused intracardially by paraformaldehyde solution with a mini - pump apparatus that has been constructed locally for this purpose then harvesting their brains immediately. After dissecting the brains coronally or sagittaly they were fixed for 20 hours in the same fixative used for the perfusion. Processing had been done by dehydrating in ascended grades of ethanol alcohol and clearing in chloroform then embedding in paraffin. Sectioning had been done with microtome; deparaffinization by xylene and rehydration with descended grades of ethanol alcohol then staining by H and E. For the immunohistochemical staining, the primary antibody “antidoublecortin antibody” was diluted to (1/1000) and incubated with the tissue for 2 hours at 30 C°. Incubation with the secondary antibody lasted for 1 hour. Application of DAB was the final step. Visualization had been done with a light microscope.Results At the coronal plane through the lateral ventricle "1 mm anterior to bregma", identification of the SVZ had been done. By the ordinary staining "H and E", the zone appeared as an aggregate of cells next to the ependymal layer. With the immunohistochemical staining, clusters of cells were proved to be the neuroblasts by staining positive for the antidoublecortin antibody; though groups of surrounding cells did not express the signal of this marker but apparently interspersed among the clusters of the neuroblasts. The neuroblasts were traced sagittaly from the SVZ and they have been found to be engaged in a committed pathway called RMS, began from the anterior tip of the lateral ventricle and ended at the core of the OB. The neuroblasts in the RMS oriented tangentially parallel to the brain surface and scaffolded each other forming what seemed to be a chain - like strip of cells which were elongated with dark spindle shaped nuclei and surrounded intimately by another cells, polymorphic in shape and did not take the signal of the antidoublecortin antibody. Distinct morphology of the chain had been encountered grossly from its emergence site till its termination point. It was forming a sigmoidal shape stream that could be divided as a whole into four distinct parts; infundibulum, vertical limb, elbow and horizontal limb. Furthermore, the neuroblasts took different morphological features along the stream. They changed from spindle shaped - nuclei cells in the infundibulum and the vertical limb to oval or irregular - shaped nuclei cells in the elbow and to more spherical - shaped nuclei in the horizontal limb. The RMS might change the mode of the migration near its rostral pole from the tangential parallel mode to the radial scattered mode by which the neuroblasts entered the olfactory bulb. In addition, the neuroblasts in the RMS revealed mitotic activity and increase their number near the termination of the stream.

دراسة كيميانسيجية مناعية لمعرفة التغيير العددي والسلوكي للخلايا الجذعية في المعدة لبعض الحالات المرضية == Immunohistochemical study to identify the changes in number and behavior of gastric stem cells in some pathological conditions

Author name: علي عبد المحسن سلمان الشافعي
Supervisor name: نوفل خضير ياس الحديثي
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الخلايا الجذعية هي خلايا في اجسامنا لها القابلية على التكون الذاتي والتميز الى انواع مختلفة من الخلايا وذلك لبناءالانسجة والاعضاء. في العلم مازال هناك تحدي لفهم كيف للبيضة المخصبة ان تتطور الى طبقات جرثومية وانواع متددة من الخلايا والتي تتطور لاحقا الى انسجة متعددة واعضاء ذات وظائف حيوية مختلفة. هناك انواع عديدة من خلايا الجذعية, والخلايا الجذعية المعدية هي واحدة منها والتي هي خلية غير ناضجة شكليا ومسؤلة لتوليد انواع الخلايا الرئيسية في الغدة المعدية ويمكن ان يكون لها دور في تكوين سرطان المعدة. يظن ان هذه الخلايا تحافظ على مجاميع صغيرة وثابتة من الخلايا الجذعية التعددة القدرات (multipotent stem cells) في المعدة من خلال الانقسام المتماثل الغير متكرر. الخلايا الوليدة تتكون بواسطة الانقسام المتكرر الغير متماثل للخلايا الجذعية المتعددة القدرات لتعطي الخلايا الجذعية التي تتميز وتكون نسل مختلف انواع الخلايا الطلائية عندما تهاجر باتجاهين متعاكسين, اما عند تجويف الغدة العلوي او الى الغدة نفسها. تهدف الدراسة الى تحديد اعداد الخلايا الجذعية المعدية في حالة التهاب المعدة والقرحة والحالات ما قبل السرطانية ووسرطان المعدة ومقارنتها بالحالات الطبيعية وايضا دراسة تاثير الجنس والعمر على هذه الاعداد.تمت الدراسة باخذ 72 خزعة من المرضى الذين يجرى لهم ناظور للمعدة والامعاء في وحدة الناظور لمستشفى بغداد التعليمي لفترة 5 اشهر. وقد تم تقسيم المرضى حسب التشخيص النسيجي الى 5 مجاميع (طبيعي والتهاب المعدة وتقرح المعدة وحالات ما قبل السرطانية والحلات السرطانية). تم معالجة العينات وصبغت بمادتي الهيماتوكسلين والايوسين لغرض التشخيص النسيجي ومجموعة اخرى من السلايدات اعدت لغرض الدراسة الكيميانسيجية المناعية بواسطة الاجسام المضادة لل (lgr5).وقد اظهرت النتائج ان التعبير النسيجي الايجابي للخلايا الجذعية بواسطة ال(lgr5) يزداد مع الحالة المرضية. وان هذد الزيادة تصل الى الذروة في الحالات ما قبل السرطانية وتنخفض قليلا في حالة سرطان المعدة. وكان المتوسط العددي للخلايا الجذعية في معدة الانسان الطبيعي 7خلايا وفي حالة التهاب المعدة 18 خلية وفي قرحة المعدة 25 خلية وفي الحالا ما قبل السرطانية 35خلية واخيرا 28 خلية في حالات سرطان المعدة. ووجد ان اعلى معدل للخلايا الجذعية في معدة الانسان الطبيعي يكون في الاعمار المتوسطة (20 - 40 سنة) وينخفض مع تقدم العمر.وبالاستنتاج وجد ان الخلايا الجذعية المعدية تزداد مع المرض وان هذه الزيادة مرتبطة بشدة المرض نفسه من جهة (كما في التهاب المعدة وقرحة المعدة) واما اذا كانت الخلايا الجذعية تشارك في تكوين السرطان في المعدة من جهة اخرى (كما في الحالات ما قبل السرطانية وسرطان المعدة) | Background : Stem cells are a group of cells in our bodies, with the capacity to self - renew and differentiate to various types of cells, thus to construct tissues and organs. In science, it is still a challenge to understand how a fertilized egg develops germ layers and various types of cells, which further develop into multiple tissues and organs with different biological functions. There are many types of stem cells, gastric stem cells is one of these types, which are morphologically immature cell responsible for generating the major cell types of gastric gland and it may have a role in development of gastric cancer. These cells are thought to maintain a small, steady - state population of multipotent stem cells in the gastric unit through infrequent symmetric division. Daughter cells generated by much more frequent asymmetric division of these multipotent stem cells subsequently exit the stem cell niche and differentiate to generate the various epithelial cell lineages as they migrate bidirectionally toward the pit or gland.Aim of study : 1) Identify the gastric stem cells population in gastritis, gastric ulcer, premalignant conditions and gastric cancer and comparing them to normal mucosal stem cells. 2) Study the effect of sex and age on this population. Patients and methods : 72 biopsies were taken from patients underwent OGD in the endoscopic unit of Baghdad Teaching Hospital over a period of 5 months. Patients were divided histopathologically into 5 groups (normal, gastritis, gastric ulcer, premalignant conditions and gastric cancer). Specimens were processed & slides stained with H & E were examined histopathologically, a second set of slides were prepared for immunohistochemial study with Leucine - rich Repeat Containing G - Protein Coupled Receptor 5 (Lgr5) antibody.Results : The results showed that the expression of lgr5+ stem cells was increased with pathology. This increase reaches its maximum in premalignant conditions and slightly declines in gastric cancer. The average number of stem cells pre high power field in normal stomach was 7 cells, in gastritis was 18 cells /HPF, in gastric ulcer was 25 cells /HPF, in premalignant conditions was 35 cells /HPF and in gastric cancer was 28 cells /HPF. The highest number of stem cells in normal stomach was in middle age group and declines with aging.Conclusions : the number of gastric stem cells increase with pathology and this increase is related to aggressiveness of the disease on one hand (gastritis & gastric ulcer) & on whether stem cells participate in tumor pathogenesis on the other hand (premalignant conditions & gastric cancer).

تاثير الفيتامينات B1,B6 and B12) على الاعتلال العصبي المحيطي : دراسة نسيجية، نسيجية كيميائية وكيميا نسيجية مناعية == The effect of vitamins B1, B6 and B12 on peripheral neuropathy , Histological , Histochemical and Immunohistological studies

Author name: صالح مهدي علي
Supervisor name: معن حمد الخالصي
General topic: Medicine
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: Peripheral neuropathy is a nerve injury process by disease or so on leading to damage of peripheral nervous system . Diabetes mellitus and compression are most common causes of peripheral neuropathy. Vitamins (B1,B6 and B12) commonly used for treatment of peripheral neuropathy. The objective of this study is to compare the effect of vitamins (B1,B6 and B12) on nerve regeneration and recovery after induced sciatic nerve crush injury in experimental animal model.Seventy five male Swiss albino rats were divided randomly into five groups and each group consisted of 15 animals. Group A( which considered as control positive(with crush injury) received normal saline intramuscularly for 45days. Group B received vitamin B1 , group C received vitamin B6 , group D received vitamin B12 and group E which considered as control negative(no crush injury and no treatment) . All animals were injected vitamins intramuscularly for 45days. Tail flick test time was reduced in rats treated with vitamin B12 after crush injury to the Sciatic nerve. Mid thigh circumference (MTC) was significantly increase in B12 treated group after crush injury to the Sciatic nerve. Data analysis was performed by SPSS 20 software using descriptive statistics.IVHistological examination of rats sciatic nerves stain by H&E on day 15 showing degenerative nerve fibers with Schwann cell infiltration in all groups but it is less prominent in group D. On day 45 histological examination of rats gastrocnemius muscles exhibited separation of bundles muscle fibers by connective tissue, variation of fibers in size and shape with atrophy of muscle bundles in all groups .While these were less prominent in rats treated with B12.Van Giesons staining of rat sciatic nerves on day 45 after crush injury. In all groups experimental and control (B,C,D,A) showing degenerative nerve fibers in different areas but less in group D and better organized sciatic nerve fibers in group D.Finally, Immunohistochemical study of (anti S100 protein) of rat sciatic nerves on day 45showed strong activity for those rats treated with vitamin B12 while rats treated with vitamin B1 and B6 exhibited moderate and weak activities respectively .In conclusion vitamin B12 promote peripheral nerve regeneration more than vitamin B1and vitamin B6.

تاثيرات عقاري المتفورمين والاناستروزول على شكل ووظيفة المبيض في بمتلازمة تكيس المبايض في الجرذان : دراسة شكلية قياسية، نسيجية، وكيميانسيجية == The Effects of Metformin and Anastrozole on the Morphology and Function of the Ovary in Polycystic Ovarian Syndrome Rat Model, Morphometrical, Histological, and Immunoistochemical Study

Author name: علي محسن عبد الامير
Supervisor name: معن حمد الخالصي
General topic: Medicine
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

الجملة الوعائية المجهرية لمخيخ الجرذ == Microvasculature of the Rat Cerebellum

Author name: حسنين عبد الجبار العبيدي
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: In spite of its various anatomical, functional, and phylogenetic divisions, the rat cerebellum remains constant throughout, in its cellular and laminar organization. The question remains whether the microvascular supply of the cerebellum is quantitatively homogenous or not.This study aims to investigate quantitatively whether the homogeneity in cerebellar cellular architecture is reflected on the functional vascular bed in different regions of the cerebellum and to provide reliable morphometric parameters that can be used for comparative purposes with other regions in the central nervous system.A sample of 20 adult male albino rats was used. Fresh frozen 20 μm thick sections in the sagittal plane were stained for microvascular alkaline phosphatase. Image analysis software (Global Lab Image), was used to measure circumscribed areas for the length and number density of their contained alkaline phosphatase positive microvascular profiles. Microvascular densities in the cortical layers of the cerebellum as a whole was (76.72±30.59 count/mm2) and (231.45±82.14 mm/mm3). There was a higher microvascular density in the granular layer in comparison to the molecular layer. This was significantly higher than the densities of the white matter core excluding the deep cerebellar nuclei. The densities in the deep cerebellar nuclei were (122.86±20.38 count/mm2) and (328.22±33.45 mm/mm3). Length density did not show obvious heterogeneity in the cortical layers between different divisions of the cerebellum. Number density was significantly higher within the cortical layers of the hemisphere when compared to the vermis. A comprehensive guide for identifying rat cerebellar regions was put foreword. This guide can be useful for identifying rat cerebellum sagittal sections regardless of the level of the section or the staining method used without the need to follow an entire series of sections.The differences in microvascularity on the laminar level was correlated with the functional necessity of neurons and synapses. Neurovascular coupling appeared in its best manifestation in the deep cerebellar nuclei where it was clear that dense microvascularity was concomitant with a densely synaptic and neuron - poor region.The cerebellar cortex as a whole, was homogenous in its microvascular length density in whichever division, anatomical, functional or phylogenetic.The predilection towards heterogeneity between vermian and hemispheric cortices as far as number density is concerned can be attributed to the complexity of branching for a given length of vessels.A combination of two morphometric parameters (microvascular length and number density) is a reasonable choice to explore the microvascular network in terms of functional needs and spatial composition.

دراسة كمية للخواص الكيميانسيجية والشكلية لعضلات الطرف الخلفي للجرذ == Quantitative Study of the Histochemical and Morphometric Characteristics of the Rat Muscles of the Hind Limb

Author name: مثنى عبد الامير عبد اللطيف
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:

دراسة لمقارنة مستقبلات للهرمون المحرر لموجهة القند لقناة فالوب بواسطة تقنية المناعة النسيجية الكيميائية في النساء اللائي لديهن حمل خارج الرحم, او عملية استئصال الرحم او ربط القناة == Comparative Study of Gonadotropin - releasing Hormone Receptor in Fallopian Tube by Immunohistochemistry among Women with Ectopic Pregnancy, Hysterectomy and Tubal Ligation

Author name: هالة ناظم كاظم مهدي
Supervisor name: ايمان علي هاشم | سعد عبد الباقي عبد الله
General topic: Medicine
Degree: Master
Language: English
University location: Basrah
First pages:
Abstract: الهدف : اجريت هذة الدراسة للمقارنة في مستوى مستقبلات للهرمون المحرر لموجهة القند بواسطة تقنية المناعة النسيجية الكيميائية في قناة فالوب بين النساء اللاتي اجريت لهن عملية ربط الانابيب عند الولادة او الحمل خارج الرحم او عملية استئصال الرحم خلال الطور الافرازي/ اللوتني من دورة الطمث.المرضى والمواد : شملت الدراسة على ثلاثة مجاميع من النساء المريضات. ضمنت المجموعة الاولى على 39 امراة تتراوح اعمارهن بين 15 - 45 سنة لديهن تاريخ سابق للحمل المنتبذ (خارج الرحم) واجريت لهن عملية طارئة. اما المجموعة الثانية ضمت 40 امراه تتراوح اعمارهن بين 25 - 45 سنة اجريت لهن عملية استئصال الرحم الاختياري نتيجة لاسباب نسائية حميدة مختلفة وشملت الاورام الليفية المتعددة ، والعضال الغدي ،او النزيف المهبلي الذي لم يستجب للمعالجة الطبية. هذا بالاضافة الى شمول 40 امراه في اما المجموعة الثالثة فقد شملت 40 امراة تراوحت اعمارهن بين 26 - 45 سنة اللواتي خضعن الى عمليات قيصرية مع ربط القناة (البوق)الثنائي عند اكتمال الحمل. شملت معايير الاقصاء المريضات اللواتي يعانين من امراض الحوض الالتهابية والانتباذ البطاني الرحمي وكذلك اللواتي يستعملن الهرمون المضاهي لهرمون اللوتنة . اجريت هذه الدراسة خلال الفترة من ايلول 2014 وحزيران 2015 في مستشفى الولادة والطفل في البصرة. تمت ازالة قنوات فالوب من المريضات اللواتي اجريت لهن عملية ازالة جراحية لهذه القنوات في المجاميع الثلاث. وقد تم حفظ قنوات فالوب في 10% فورمالين وارسلت الى مختبر الامراض في مستشفى الصدر التعليمي لغرض الفحص النسيجي المرضي (باستعمال طريقة التلوين بالهيماتوكسلين والايوسين ) ولغرض التقصي المناعي النسيجي الكيميائي.النتائج : تبين في الفحص النسيجي المرضي كان هناك العديد من الزغابات المشيماتية الشاحبة في تجويف قناة فالوب. وهناك ايضا طبقات من الارومات الغازية تمتد بشكل حر داخل التجويف . ودل الراسب البني في السايتوبلازم خلايا قناة فالوب على التلوين بواسطة الاضداد الاولية ، ولايوجد تلوين في العينات السالبة باستعمال الفحص المناعي النسيجي الكيميائي . وهناك اختلاف في توزيع وجود مستقبلات للهرمون المحرر لموجهة القند بين النساء ذوات الحمل المنتبذ (58,9%) واللاتي استئصلت ارحامهن (82%) وفي 10% فقط بين النساء اللاتي اجري لهن ربط قناة فالوب عند الولادة وكان ذلك باستعمال تقنية المناعة النسيجية الكيميائيه لكن ذلك كان قريبا من الاعتداد الاحصائي ( الاحتمال =0,069) . بينما كان التوزيع السلبي لمستقبلات الهرمون المحرر لموجهة القند اعلى في النساء اللاتي اجري لهن ربط القناة (90%) مقارنة مع النساء اللاتي لديهن حمل منتبذ (41,1%) او النساء اللاتي اجري لهن استئصال الرحم (18%). ان مستقبل الهرمون المحرر لموجهة القند المتفاعل مناعيا تم تحديده في عينات قناة فالوب من مريضات الحمل المنتبذ في الغشاء المخاطي للقناة فقط (5 من 39) او في الزغابات المشيماتية فقط (6 من39) او في كليهما (13 من 39) ، وكانت الفروقات غير معتدة احصائيا ( الاحتمال اكبر من 0,85).الخلاصة : لقد تبين مما تقدم بان مستقبل الهرمون المحرر لمواجهة القند يملك دور حيوي في بداية الحمل لللاخصاب وغرس الجنين. | Objective : This is a comparative study to detect gonadotropin - releasing hormone receptor expression by immunohistochemical technique in the human fallopian tubes belong to women with ectopic pregnancy, women subjected to tubal ligation at term pregnancy with history of normal pregnancy and hysterectomized women.Patients and Methods : The study involved 3 groups of patients, the first group was involved 39 females ( their ages ranged from 15 - 45 years) with history of ectopic pregnancy who underwent emergency operation, the second group was included 40 (their ages ranged from 25 - 45 years) women who were operated on for elective hysterectomy due to various benign gynecological reasons, like multiple uterine fibroid, adenomyosis and uterine bleeding not responding to medical treatment. The third group was involved 40 women (their ages ranged from 26 - 45 years) subjected to Cesarean section with bilateral tubal ligation at term pregnancy were also included in the study. The exclusion criteria included patients with pelvic inflammatory disease, endometriosis and luteinizing - hormone - releasing hormone analogue users. The study was carried out during the period from September 2014 till June 2015 at Basra Maternity and Childhood Hospital. Fallopian tubes were removed and collected from all the 3 groups patients. Fallopian tubes were preserved in 10% formalin and were taken to the Pathology Laboratory at Al - Saddar Teaching Hospital for the purpose of conventional histopathology i.e, Hematoxyline eosin staining method and immunohistochemical study for gonadotropin - releasing hormone receptor.Results : Histopathological examination of the tissue of fallopian tube, indicates that there are numerous pale chorionic villi in the lumen of the fallopian tube. A brown precipitate in the cytoplasm of the cells of the fallopian tube indicated positive staining by primary antibody while no staining was detected in negative samples by using immunohistochemical examination. There is a difference in the distribution positive cases of gonadotropin - releasing hormone receptor detection among ectopic pregnant women (58.9%), hysterectomized women (82%) and only (10%) among women with tubal ligation at term pregnancy in the fallopian tube by using immunohistochemical technique but statistically the results is marginally significant (P=0.069). The immunoreactive GnRH receptor was identified in the fallopian tube samples from patients with ectopic pregnancy, in the mucosa of the tube alone (5 out of 39) or in the chorionic villi only (6 out of 39) or both of them the mucosa as well as villi (13 out of 39 ). The differences were statistically insignificant (P>0.85). Conclusion : This study was demonstrating that GnRH which is produced by the human fallopian tube, has a vital role in fertilization, early embryonic development and implantation .

دراسة نسجية ,كيمو نسجية وكيمو حيوية لتاثير عقار الكودائين - باراسيتامول في ذكور الجرذان المختبرية == Histological, Histochemical And Biochemical Study of The Effects of Codeine - Paracetamol In Male Sprague Dawley Rats

Author name: اسيل كامل حميد الهاشمي
Supervisor name: عادل جبار حسين | صالح كاظم مجيد
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Basrah
First pages:
Abstract: صممت هذه الدراسة لمعرفة التاثيرات النسجية, الكيمونسجية والكيموحيوية للاستخدام طويل الامد لعقار الكودائين - باراسيتامول على الجرذان المختبرية, حيث استخدمت في هذه الدراسة اربع وعشرون جرذ ذكر (وزن الحيوانات 200غم) قسمت عشوائيا وبالتساوي على اربع مجاميع. احتو | The present study is performed to evaluate the histological, histochemical and biochemical effects of long term use of codeine - paracetamol drug on laboratory rats, this study performed in college of veterinary medicine at university of Basra, there was (24) male rats(Body weight 200g) were divided randomly and equally into four groups, each group consisted of six rats for which codeine - paracetamol drug was orally administered for (90) days as the following : for group (A) normal saline was administered and it served as a control group. Group (B)was administered with (8/500 mg/200g) and served as low dose group, group (C)was administered with (16/1000 mg/200g) and served as intermediate dose group, and group (D) was administered with (32/2000 mg/200g) and served as high dose group. The statistical analysis results of body weight of the long term use of drug for the treated groups showed significant decreases (P?0.05) of body weight of both(L.D) and (H.D) while the (I.D) showed no significant (P?0.05) difference when compared to the control group. The internal organs weight (liver, kidney and spleen) showed significant decreases (P?0.05) of liver weights in both (L.D) and (I.D), while the (H.D) showed no significant difference of liver weight when compared to the control group; the kidney weight showed significant increases in both (L.D) and (I.D), while the (H.D) showed no significant difference when compared to the control group. Spleen weight also showed a significant increase in both (L.D) and (I.D), while the (H.D) showed significant decrease when compared to the control group. The serum lipid profile showed significant increases (P?0.05) in the levels of (cholesterol, triglyceride, High Density Lipo - protein and Low Density Lipo - protein) and no significant difference of (Very Low Density Lipo - protein) of (L.D), while the (I.D) showed significant increases of the levels of (cholesterol, HDL and LDL) and no significant differences of the levels of (triglyceride and VLDL), (H.D) also showed significant increases of levels of (cholesterol, triglyceride, HDL, LDL and VLDL) when compared to the control group. The statistical analysis of the results of liver and kidney function enzymes showed no significant differences of total serum bilirubin (TSB) of both (L.D) and (I.D) and a significant increase in (H.D); There was no significant (P?0.05) differences in the level of serum direct bilirubin (D.B) among all treated groups when compared to the control group , while the (H.D) group there was non significant compared with control and other treated groups, while the levels of (Aspartate Aminotransferase AST , Alanine Aminotransferase ALT, Alkaline phosphatase ALP and creatinine) showed significant increases in all treated groups when compared to the control group. Histological results of the liver of (L.D) and (I.D) showed vacuolation of hepatocytes and dilatation of sinusoids in which the vaculation is more severe in (I.D) with early septal fibrosis, while the liver of (H.D) showed severe centrolobular necrosis, hemorrhage, dilation of sinusoids and septal fibrosis. While the kidney of (L.D)and (I.D) showed vaculation of proximal convoluted tubules and glomerular mesengial cells with minimal vacuolation in (L.D), The kidney of (H.D) showed necrosis and vaculation of proximal convoluted tubules with vaculation of glomerular mesengial cells. The nervous system (brain, spinal cord and sciatic nerve) of all treated groups showed vacuolation of nerves cells and axons, severe vacuolation in (H.D). The lung showed edema and aggregation of inflammatory cells in lung of both (L.D) and (I.D) while the lung of (H.D) showed severe edema, enlarged proliferative and aggregation of lipid laden macrophages (pulmonary lipidosis). While the heart showed mild vacuolation of myocardial muscle cells of both (L.D) and (I.D), but the (H.D) showed sever vacuolation of myocardial muscle cells. The stomach also showed mild vacuolation of gastric epithelium in all treated groups. The testes also showed vacuolation and suppression of spermatogenesis in the (L.D) and moderate vacuolation and suppression of spermatogenesis in (I.D) while (H.D) showed present of giant multinucleated spermatid with sever vacuolation and suppression of spermatogenesis. While the spleen showed mild to moderate atrophy of white pulps of the (L.D) and (I.D), (H.D) also showed severe atrophy of white pulp with mild fibrosis and the presence of hemosiderin laden macrophages and foamy vacuolated macrophages. The histochemical study of poly saccharides(glycogen) of liver and kidney showed decrease of poly saccharides composition in mid zonal area and near the central vein, while in kidney, it was present in proximal convoluted tubules and in bowman's capsules in the (L.D) and (I.D), those changes were more severe in (H.D). While the histochemical study of lipid showed increase of lipid composition in hepatocytes near the central vein and in kidney in the proximal convoluted tubules and bowman's capsules, and those lipid compositions increased when the dose increased. The electron microscope study of liver showed mild to moderate swelling of mitochondria and dilation of smooth endoplasmic reticulum in both (L.D) and (I.D), while (H.D) showed severe swelling of mitochondria and dilatation with proliferation of smooth endoplasmic reticulum.

دراسة نسيجية لجلد اناث وذكور الفئران بعد اعطاء عقار الكلوكوزامين سلفيت == Histological Study On The Male And Female Mice's Skin After The Administration Of Glucosamine Sulphate

Author name: معن ماجد صالح السامرائي
Supervisor name: عبد الامير حمادي النعيمي
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
Key words:
  • Skin
  • glucosamine sulphate
  • glycosaminoglycans
First pages:
Abstract: يتكون الجلد وكما هو معروف جيدا من عدة طبقات من الخلايا متجددة باستمرار عبر اعادة بناء نفسها ذاتيا مرة كل ثلاثون يوما من خلال دورة حيلتية متكررة وتقسم هذه الطبقات الى نوعين اساسية البشرة والادمة. يعتبر الكلوكوز امين سكر اميني بسيط ينبعث من عمليات الايض ال | It is well known that the skin is made up of multiple layers of cells that fare constantly going through self shedding and regeneration once every 30 days, or so in repeated cycles. The layers can be broadly divided into two sections : the epidermis and the underlying dermis. Glucosamine is an amino monosaccharide derived from cellular glucose metabolism. Glucosamine is a simple component or "building block" of more complex molecules. Glucosamine was considered to be an effective treatment for many joint diseases especially osteoarthritis. It is believed that glucosamine maintain healthy joint functions and rebuild damaged joint cartilage, tendons, ligaments and other connective tissue. It does this by stimulating the production of glycosaminoglycans (GAG’s) which are the structural components of cartilage and connective tissue else where in the body. On that basis, this study was designed to study the effects of glucosamine sulphate on the skin.Twenty male and twenty females adult mice (weighting between 23.3gm to 27.2gm), were divided into two equal subgroups (control and experimental); the drug was given at noon three hours after starvation it had been grinded and mixed with food and given as a single oral dose of 350mg/kg body weight per day for 35 successive days. Histological examination and statistical analysis of multiple sections of ventral and dorsal skin of male and female mice and of both subgroups were done by using hemotoxyline and eosin stain. Special stains were used to demonstrate the specific components of the skin as follows : for collagen fibers (Van Gieson's staining method), for elastic fibers (modified Taenzer - Unna Orcien staining method), and for ground substance (Alcian blue stain method).The results reveal that there was no particular change in the epidermis between the experimental and control groups. On the contrary there was a marked thickening with high cellular contents of both layers of the dermis (papillary and reticular).The dermis of the treated animals contains more collagen and elastic fibers. The predominant cell of the dermis was the fibroblast which was more obviously seen in the ventral skin of the treated animals. This study confirms practically that glucosamine sulphate induces significant structural changes in the skin of male and female mice. Using glucosamine sulphate clinically for medical conditions rather than arthritic diseases is now the target of most recent researches, its ability to decrease wrinkles in the aged skin and promotion of wound healing with less scar tissue is consider to be a light for dermatologist and plastic doctors, plus its effect to rebuild any aged, injured and diseased tissue in the body.

دراسة تاثير اديبونكتين على هيكل كبد الفئران وعلاقته بالنظام الغذائي وكمية الدهون في الجسم == A Study Of Adiponectin Effects On The Mice Liver Architecture In Relation To Dietary Intake And Body Fat Content

Author name: غسان علي عبد الحسین
Supervisor name: سلمان شفیق سلمان | عماد غانم قاسم
General topic: Medicine
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: يعتبر مرض الكبد الدهني غير الكحولي الاضطراب المزمن الاكثر شيوعا في الكبد واصبح تشخيصه في ازدياد مع زيادة وباء السمنة العالمي وقد تم تصميم الدراسة الحالية لدراسة الفوائد المحتملة للاديبونيكتين على النماذج الحيوانية من مرض.تم تطوير نموذجين من اضطراب الكبد | Non - alcoholic fatty liver disease is the most common chronic liver disorder whose prevalence has been on the rise with the worldwide increasing pandemic of obesity. The current study was designed to study potential benefits of the adipokine (adiponectin) on animal models of non - alcoholic fatty liver disease.Two models of the disorder were developed using two different approaches. In experiment 1 (25 mice, last 8 weeks), fatty change was induced using high fructose intake to simulate human - like diet induced obesity and fatty liver disease. In experiment 2 (25 mice, last 3 weeks), fatty liver damage was induced by using methionine - choline deficient diet. Animal body weights, absolute and relative liver weight, food consumption and fructose water consumption were recorded. Visceral (epididymal) fat and liver tissue were studied using routine hematoxylin and eosin staining and histochemical stains including Masson trichrome, Periodic acid schiff and reticulin stains. Morphological and morphometric changes were compared between animals treated with adiponectin, untreated diseased animals, and control healthy animals and a non - alcoholic steatosis activity score was used to evaluate the severity of liver damage. Random blood sugar and serum lipid levels were also included as biochemical metabolic parameters.High fructose intake resulted in larger visceral fat depots and weight gain, effects that were combated by adiponectin treatment despite increased food intake. Hepatic steatosis, inflammation, pyknotic pictures and fibrosis were reduced in adiponectin treated animals resulting in a lower activity score. Random blood sugar levels were normal in all animal groups but were significantly lower in adiponectin treated groups. TG and VLDL were alleviated with adiponectin treatment.Methionine - choline deficient diet resulted in emaciation of animals, much reduced visceral fat depots but a more severe form of liver fatty damage over a shorter period of time when compared to high fructose obese animal models. Weight loss was worsened after adiponectin treatment. Hepatic steatosis, inflammatory foci, ballooning degeneration and fibrosis were all exaggerated but remained significantly less severe with less activity score in adiponectin treated animals. Random blood sugar levels were normal in all animal groups but were significantly higher after adiponectin treatment. TG and VLDL was alleviated with adiponectin treatment.Adiponectin affects appetite, food consumption and body composition in healthy animals and animal models of non - alcoholic fatty liver disease through different mechanisms. It has beneficial effects in reducing body weight in obese animals but can modulate weight loss in lean animals on methionine - choline deficient diet. Adiponectin has autocrine/paracrine effects on visceral adipose tissue and can correct the dyslipidemic picture of fatty liver disease. The antisteatotic and antifibrotic effects of adiponectin carry greater therapeutic potentials in obesity - related liver disease.

هرمون اللبتين والاستقلاب : دراسة كيميانسيجية وكيمياحيوية شاملة في الحيوانات الطبيعية والمصابة بالسكري == Leptin And The Metabolism : A Comprehensive Histochemical And Biochemical Study In Healthy And Diabetic Animals

Author name: سامح سمیر موسى عكیلة
Supervisor name: سلمان شفیق سلمان | سامیة عباس علیوي
General topic: Medicine
Degree: Doctorate
Language: English
University location: Baghdad
First pages:
Abstract: The adipocytokine leptin is a major player in the pathogenesis of diabetes mellitus and obesity. Since its discovery around 20 years ago, leptin has been; and still is; the subject of extensive research.The current study was designed to examine the effects of physiological doses of leptin on major organs involved in metabolism. The anatomical, histochemical, physiological, and biochemical effects of leptin were studied in healthy animals and in animal models of type 1 and type 2 diabetes.Eighty male albino mice were divided into three groups. The first group (A) consisted of healthy non - obese non - diabetic animals, a subgroup (A1) of which received leptin therapy to study its effects under normal conditions without metabolic disturbances. In the second group (B), a model of diet induced obesity and insulin resistance was developed using a combination of high fat diet and low dose streptozocin injection. In one subgroup (B1), the effects of leptin were studied under dietary manipulation after the discontinuation of high fat diet. In other subgroups, leptin effects were examined with continuous HFD with (B3) and without (B2) concomitant metformin therapy. The third group animals (C) represented a type 1 DM model developed by high dose streptozocin injection. A subgroup (C3) served as model control, not receiving any hormonal therapy. The others two subgroups received leptin treatment with (C2) and without (C1) concomitant insulin therapy.Statistical parameters for the study included the body weight, food and caloric consumption, adiposity index and specific organ weights and weight ratios. The epididymal fat pad, liver and pancreas were examined for gross anatomical and histological changes. Adipose tissue and some pancreatic sections were stained with H&E, liver sections were stained with periodic acid schiff stain, other pancreatic sections were stained with modified Gomori's aldehyde fuchsin. Random blood sugar and serum lipid levels and insulin tolerance test were also studied as biochemical parameters.Leptin therapy in healthy non - obese animals resulted in a reduction in food consumption, body weight, adiposity index and white fat pads weight. It also caused a reduction in the diameter and surface area of epididymal adipocytes. Serum TGL and LDL levels were significantly reduced. iiiThe same effects were seen in group B animals that underwent dieting or received metformin, but not in ones receiving leptin alone. Animal models of type 1 DM showed a moderate response to leptin therapy alone but the response was dramatically enhanced when treatment was combined with insulin. Sever weight loss and polyphagia of type 1 DM were greatly ameliorated by leptin therapy and there was an improvement in fat pad weights and adipocyte measurements. The hepatic glycogen content and insulin sensitivity were greater in animals treated with leptin (A1), on diet and leptin (B1) or metformin (B3) and in animals on leptin with insulin (C1). This was associated with significantly lower levels of random blood sugar. The pancreatic islet surface area was markedly reduced while the ? - cell/ ? - cell ratio was increased in treated animals.Leptin therapy can alter body weight and adiposity index by affecting appetite and food consumption via central and peripheral mechanisms involving the control of feeding behavior and manipulating the processes involved in carbohydrate and lipid metabolism. It can also correct the metabolic disturbances of type 2 DM but requires the concomitant use of metformin and/or the manipulation of dietary content of fat and carbohydrates. Much of its influence arises from its ability to enhance insulin sensitivity.Leptin also has a sparing effect on hepatic glycogen, favoring in turn the use of fatty acids for energy expenditure. Leptin effects on blood glucose are insulin dependent in most cases but can be insulin - independent in type 1 DM by utilizing alternative metabolic pathways for energy expenditure and interacting with hyperglycemia - inducing hormones.

ظهور المؤشرات في الثدي الطبيعي المحيط بسرطان الثدي في عينة من النساء العراقيات

Author name: احمد فاخر حميد
General topic: Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:

Postnatal histomorphological development of the ovary, uterine tube and uterus in normal and ovariectomized local rabbits (Oryctologus cuniculus)

Author name: منى رضا علي الدهان
Supervisor name: فرحان عودة ربيع | احسان حمودي التميمي
General topic: Veterinary Medicine
Degree: Doctorate
Language: English
University location: Baghdad
First pages:

دراسة تشريحية , نسيجية وشعاعيه لكيس الصفراء والجهاز القنوي الصفراوي (خارج وداخل الكبد) في المجترات الصغيرة == Anatomical, Histological And Radiological Study Of Gall Bladder And Biliary Ducts System (Extra And Intra Hepatic) In Small Ruminants

Author name: مسرات سوادي المياحي
Supervisor name: مهدي عبد الكريم عطية
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:

دراسة تشريحيـــة ونسيجيــة للغدة الدمعيـــة وغدة الرف فــي الماعــــــــز الاســــــود Caprus hircus == Anatonical And Histological Study Of Lacrimal And Nictitans Glands In Black Goats Caprus Hircus

Author name: معزز عبد الخالق حيدر الرماحي
Supervisor name: فرحان عودة ربيع
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:

التاثير النسجي, الكيمو نسجي والكيموحيوي للعلاج طويل الامد بعقار الدكساميثازون في ذكور الارانب(Lepus cuniculus) == Histological, Histochemical and Biochemical Effect of Long Term Treatment of Dexamethasone in Male Rabbits (Lepus cuniculus)

Author name: علي صبيح عباس الحريشاوي
Supervisor name: عادل جبار حسين | مجدي فيصل مجيد
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Basrah
First pages:

دراسة تاثيرات استنشاق البنزين العادي على فسلجة الانسجة والتركيبية الدقيقة والوراثية الخلوية لبعض الاعضاء في الاناث البالغة واجنة الفئران المختبرية ( Mus musculus L. ) == Study Of The Effects Of Ordinary Benzene Inhalation On Histophsiolgical, Ultrastructure And Cytogenetic Of Some Organs In Adults Females And Embryos Of Laboratory Mice Mus Musculus L

Author name: هيفاء علي حسين علي
Supervisor name: فوزي صدام محسن الاسدي | مجدي فيصل مجيد
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Basrah
First pages:

دراسة استشعاعية مناعية للخلايا الصماوية المعوية في الامعاء الدقيقة للجمال وحيدة السنام (Camelus dromedarius) == Immunofluorescene Study Of The Enteroendocrine Cells In The Small Intestine Of One Humped Camel (Camelus Dromedarius)

Author name: فاطمة سوادي زغير
Supervisor name: ميران عبد الامير عطية الرماحي
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Qadisiyah
First pages:

دراسة تشريحية ونسجية للعفج في ذكر الجمل المحلي (وحيد السنام) البالغ Camelus dromedarius == Anatomical And Histological Study Of The Duodenum In Adult Male Indigenous One Humped Camel Camelus Dromedarius

Author name: خالد هادي كاظم
Supervisor name: نجاح هاشم حسان | ايمان فيصل عبد الحسن
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Qadisiyah
First pages:

دراسة نسجية مرضية ووراثية وتركيبية دقيقة لدور السلينيوم وزيت الزيتون ضد التسمم المستحدث بالرصاص في اناث الفئران(Mus musculus L.) == Histopathological, Cytogenetical And Fine Structure Study For The Role Of Selenium And Olive Oil Against Originated Lead Toxicity In Female Mice (Mus Musculus L.).

Author name: ولاء جميل مسلم الخالد
Supervisor name: مجدي فيصل مجيد | عادل جبار حسين
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Basrah
First pages:

دراسة تشريحية ونسيجية للغدة الكظرية في الجاموس العراقي (Bubalus bubalis) مع الاشارة للتغيرات الموسمية == Anatomical And Histological Study Of Adrenal Gland In Iraqi Buffalo (Bubalus Bubalis) With Referring To The Seasonal Changes

Author name: نهى ابراهيم محمد الربيعي
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Baghdad
First pages:

دراسة تشريحية ونسجية للغدة الدرقية وجنيب الدرقية في الجاموس العراقي (Bubalus bubalis) مع الاشارة للتغيرات الموسمية == Anatomical And Histological Study Of Thyroid And Parathyroid Glands In Iraqi Buffalo“ Bubalus Bubalis” With Referring To The Seasonal Changes

Author name: منتظر محمد كاني الطائي
General topic: Veterinary Medicine
Degree: Higher Diploma
Language: English
University location: Baghdad
First pages:

دراسة تشريحية ، نسجية وشعاعية لكلية وحالب الجاموس Bubalus bubalis في العراق == Anatomical, Histological And Radiological Study Of The Kidney And The Ureter Of Buffalo (Bubalus Bubalis) In Iraq

Author name: علي فياض الكناني
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Baghdad
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اثر نوع الغذاء على الشكل التشريحي والتركيب النسيجي للحوصلة في ثلاثة انواع من الطيور == The Influence Of Food Type On The Anatomical Form And Histological Structure Of Crop In Three Species Of Birds

Author name: حميدة عبد المهدي غازي
Supervisor name: خولة جاسم بلاش
General topic: Veterinary Medicine
Degree: Master
Language: English
University location: Baghdad
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