Angiotensin （Ang）-（1-7） is recognized as a new bioactive peptide in renin-angiotensin system （RAS）. Ang-（1-7） is a counter-regulatory mediator of Ang-II which appears to be protective against cardiovascular di...Angiotensin （Ang）-（1-7） is recognized as a new bioactive peptide in renin-angiotensin system （RAS）. Ang-（1-7） is a counter-regulatory mediator of Ang-II which appears to be protective against cardiovascular disease. Recent studies have found that Ang-（1-7） played an important role in reducing smooth muscle cell proliferation and migration, improving endothelial function and regulating lipid metabolism, leading to inhibition of atherosclerotic lesions and increase of plaque stability. Although clinical application of Ang-（1-7） is restricted due to its pharmacokinetic properties, identification of stabilized compounds, including more stable analogues and specific delivery compounds, has enabled clinical application of Ang-（1-7）. In this review, we discussed recent findings concerning the biological role of Ang-（1-7） and related mechanism during atherosclerosis development. In addition, we highlighted the perspective to develop therapeutic strategies using Ang-（1-7） to treat atherosclerosis.展开更多
文摘心血管疾病是危害人类生命健康最严重的疾病之一,中国每5人中就有2人死于心血管疾病。心肌缺血是重要的心血管疾病之一。心肌血流储备分数(fractional flow reserve,FFR)用于量化心外膜下冠状动脉狭窄是否产生心肌缺血;微血管阻力指数(index of microcirculatory resistance,IMR)是定量评价冠脉微循环状态的有创指标。传统FFR和IMR测量临床上依靠导丝,在最大充血态下进行介入测量,临床上辅助心肌缺血的诊断。基于冠脉造影的caFFR和caIMR(coronary angiography-derived FFR and IMR)无需介入操作、无需血管扩张药物、无禁忌症限制,可以快速同步计算FFR和IMR,进而辅助冠脉介入手术的诊疗。本文总结了近年来基于冠脉造影的caFFR和caIMR以及其他冠脉生理学检测技术的研究进展。进一步开展基于造影的FFR和IMR组合研究,从宏观到微观开展冠脉功能学研究具有重要的临床价值。
基金This work was supported by National Natural Science Foundation of China （NSFC） （No. 81400265 and No. 81270274）, and Peking University People＇s Hospital Research and Development funds （RDB2014-16）.
文摘Angiotensin （Ang）-（1-7） is recognized as a new bioactive peptide in renin-angiotensin system （RAS）. Ang-（1-7） is a counter-regulatory mediator of Ang-II which appears to be protective against cardiovascular disease. Recent studies have found that Ang-（1-7） played an important role in reducing smooth muscle cell proliferation and migration, improving endothelial function and regulating lipid metabolism, leading to inhibition of atherosclerotic lesions and increase of plaque stability. Although clinical application of Ang-（1-7） is restricted due to its pharmacokinetic properties, identification of stabilized compounds, including more stable analogues and specific delivery compounds, has enabled clinical application of Ang-（1-7）. In this review, we discussed recent findings concerning the biological role of Ang-（1-7） and related mechanism during atherosclerosis development. In addition, we highlighted the perspective to develop therapeutic strategies using Ang-（1-7） to treat atherosclerosis.
