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血管紧张素Ⅱ1型受体拮抗剂抑制动脉损伤后中膜平滑肌细胞血小板源性生长因子的表达及细胞迁徙 被引量:5

Angiotensin Ⅱ type 1 receptor antagonist inhibits the expressions of platelet-derived growth factors of medial smooth muscle cells and cell migration after arterial injury
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摘要 目的:研究球囊导管损伤后早期血管紧张素Ⅱ1型受体(AT1)拮抗剂对损伤后大鼠动脉中膜平滑肌细胞血小板源性生长因子(PDGF)的表达及细胞迁徙影响。方法:12周雄性Wistar大鼠颈动脉用球囊导管损伤,分成实验组和对照组,分别于术前2 d给予血管紧张素Ⅱ1型受体拮抗剂CV-11974(5 mg.kg-1.d-1)和溶剂,术后2 d、3 d、5 d和14 d处死。用原位杂交、免疫组织化学和病理组织学进行研究。结果:实验组术后第2 d、3 d和5 d中膜平滑肌细胞PDGF-A mRNA和PDGF-A、PDGF B、PDGF-α(R)、β(R)阳性细胞率以及迁徙率明显低于对照组(P<0.01)。实验组的中膜平滑肌细胞表型处于收缩型。结论:血管紧张素Ⅱ1型受体拮抗剂明显抑制损伤后动脉中膜平滑肌PDGF及其受体的表达和平滑肌迁徙。
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2007年第8期1636-1638,共3页 Chinese Journal of Pathophysiology
基金 留学归国人员科研启动基金资助项目(No.教外留字[1999]747)
关键词 受体 血管紧张素 血小板源性生长因子 动脉 平滑 血管 Receptors, angiotensin Platelet- derived growth factor Arteries Muscle, smooth, vascular
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