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العنوان
The possible protective potential of certain agents in global cerebral behemia-reperfusion induced in rats /
الناشر
Iman Hassan Ezzat Elkhashab ,
المؤلف
Iman Hassan Ezzat Elkhashab
هيئة الاعداد
باحث / Iman Hassan Ezzat Elkhashab
مشرف / Amany Ibrahim Elbrairy
مشرف / Rania Mohsen Abdelsalam
مشرف / Amina Salem Attia
تاريخ النشر
2016
عدد الصفحات
162 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
العلوم الصيدلية
تاريخ الإجازة
30/9/2016
مكان الإجازة
جامعة القاهرة - كلية الصيدلة - Pharmacology and Toxicology
الفهرس
Only 14 pages are availabe for public view

from 180

from 180

Abstract

Background. Global cerebral Ischemia is one of the leading causes of mortality worldwide. The sudden cessation of blood flow to the brain initiates a cascade of events that leads to severe neuronal brain damage. Allowing reperfusion after ischemia causes further cerebral damage. The neuroprotective effect of cilostazol, a phosphodiesterase inhibitor III, and chrysin, a flavonoid, has not been investigated on global cerebral ischemia, thus it seemed interesting to investigate both drugs in ischemia-reperfusion (I/R) in rats. Methods. Male Wistar rats weighing 200-250 were allocated into four groups. I. Sham-operated control group, II. I/R group subjected to global cerebral ischemia for 15 minutes followed by reperfusion for 60 minutes. Groups III and IV were treated with cilostazol (30 mg/kg p.o.) and chrysin (30 mg/kg p.o.), respectively, for 2 weeks followed by global I/R on the 15th day. Throughout the I/R procedure, rats were subjected to anesthesia with thiopental 30 mg/kg, then they were sacrificed by decapitation. Both hippocampi were rapidly excised to determine the oxidative stress biomarkers: Thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH), NADPH oxidase activity and xanthine oxidase (XO) activity and the inflammatory mediators: interleukin 10 (IL-10), interleukin (IL-6) and tumor necrosis factor alpha (TNF-Ü). Apoptotic factors: heat shock protein 90 (HSP 90), Ý-cell lymphoma 2 (BCL-2) and BCL-2 associated X protein (BAX), as well as the excitatory neurotransmitters: glutamate and aspartate, were also evaluated