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العنوان
Cardiovascular Protective Role of the Central Endocannabinoid Receptor GPR18 Signaling in Diabetic Rats /
المؤلف
Ahmed, Asmaa Ibrahim Matouk.
هيئة الاعداد
باحث / أسماء إبراهيم معتوق أحمد
مشرف / عبدالرحمن أحمد عبدالرحمن
مشرف / أشرف محمد أبوالوفا طايع
مشرف / محمد أحمد محمد المصيلحي
مشرف / جيهان حسين حسين هيبه
الموضوع
Drug discrimination (Pharmacology). Pharmacological Phenomena.
تاريخ النشر
2018.
عدد الصفحات
194 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الصيدلة ، علم السموم والصيدلانيات (المتنوعة)
تاريخ الإجازة
1/1/2018
مكان الإجازة
جامعة المنيا - كلية الصيدلة - الأدوية والسموم
الفهرس
Only 14 pages are availabe for public view

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Abstract

The results of the present study revealed that:
Compared to STZ diabetic rats, abn-cbd;
• Had no effect on diabetes-evoked cardiac hypertrophy, or the associate impaired glycemic control (hyperglycemia and hypoinsulinemia).
• Alleviated the reductions in LV contractility (dP/dtmax) and relaxation (dP/dtmin) indices, and the increases in LVEDP and cardiac vagal dominance.
• Reversed myocardial oxidative stress by restoring circulating and cardiac NO and ADN levels and enhancing GPR18 expression and phosphorylation of Akt, ERK1/2 and eNOS in diabetic rats’ hearts.
Concurrent GPR18 blockade (O-1918) abrogated all favorable effects of abn-cbd in diabetic rats.
In conclusion, abn-cbd improves cardiovascular functions in diabetes via activation of the endocannabinoid receptor, GPR18, which is expressed in the myocardium. The signaling mechanisms that mediate the abn-cbd –evoked cardiovascular effects include activation of Akt and ERK1/2 signaling pathways as well as adiponectin mediated elevation of nitric oxide levels and reduction of oxidative stress. GPR18 can be considered as a viable molecular target for developing new therapeutics that simultaneously improves cardiac function in diabetes.