این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Basic Medical Sciences، جلد ۱۹، شماره ۱، صفحات ۴۹-۵۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی The effect of adrenomedullin and proadrenomedullin N- terminal 20 peptide on angiotensin II induced vascular smooth muscle cell proliferation
چکیده انگلیسی مقاله Objective(s): The study aimed to investigate the effects of adrenomedullin (ADM) and proadrenomedullin N- terminal 20 peptide (PAMP) on angiotensin II (AngII)-stimulated proliferation in vascular smooth muscle cells (VSMCs). Materials and Methods: Thoracic aorta was obtained from Wistar rats and VSMCs were isolated from aorta tissues and then cultured. In vitro cultured VSMCs were stimulated with Ang II (10-8 mol/l) followed by various doses of PAMP or ADM (10-9, 10-8, or 10-7 mol/l). Cell proliferation as assessed by 3H-TdR incorporation. Protein kinase C (PKC) activity was measured by counting γ-32P radioactivity with liquid scintillation. In a separate cohort, in vitro cultured rat aortic vessels were treated with different doses of Ang II or PAMP (10-9, 10-8, or 10-7 mol/l). Cellular and secreted levels of PAMP, ADM and Ang II were measured using radioimmunoassay in the tissues and intubation mediums, respectively. Results: Ang II (10-8 mol/l) treatment significantly increased both 3H-TdR incorporation and PKC activity in VSMCs (by 2.68 and 1.02-fold, respectively; both P< 0.01 vs. the control). However, Ang II-induced elevation of 3H-TdR incorporation, and PKC activity was significantly inhibited by various doses of ADM and PAMP (all P< 0.01 vs. the Ang II group). In rat aortic vascular tissues or intubation media, Ang II treatments stimulated the expression and secretion of PAMP and ADM in a dose-dependent manner, while PAMP treatments had no significant effects on Ang II levels. Conclusion: ADM and PAMP inhibit Ang II-induced VSMCs proliferation. The interaction of Ang II, ADM and PAMP may regulate VSMCs and cardiovascular function.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله ژیان ma | jian ma
cadres division one, the 401st hospital of pla, qingdao 266071, china


yinglu feng | yinglu feng
cadres division one, the 401st hospital of pla, qingdao 266071, china


zaiquan li | zaiquan li
institute of cardiovascular research, peking medical university, first hospital, beijing 100083, china


chaoshu تنگ | chaoshu tang
institute of cardiovascular research, peking medical university, first hospital, beijing 100083, china
نشانی اینترنتی http://ijbms.mums.ac.ir/article_6414.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات