Malfunction of Vascular Control in Lifestyle-Related Diseases: Oxidative Stress of Angiotensin II-induced Hypertension: Mitogen-Activated Protein Kinases and Blood Pressure Regulation

Journal of Pharmacological Sciences

Guo-Xing Zhang¹  Shoji Kimura¹  Youichi Abe¹ 

[1] Department of Pharmacology, Kagawa University Medical School

关键词: angiotensin;    vasoconstriction;    tempol;    superoxide anion;    mitogen-activated protein kinase;   

DOI  :  10.1254/jphs.FMJ04006X5

学科分类：药学

来源: Nihon Yakuri Gakkai Henshuubu / Japanese Pharmacological Society

【 摘 要 】

References(28)Cited-By(12)The candidate mechanisms for maintaining hypertension in a chronically angiotensin II (Ang II)-infused state include direct vasoconstriction of the vasculature, disturbance of renal water/sodium handling, and central/peripheral sympathetic nerve regulation of hemodynamics. The involvement of reactive oxygen species (ROS) has been studied in these proposed mechanisms and the importance of ROS in progression of Ang II-induced hypertension has been accepted. We recently reported ROS-sensitive blood pressure regulation in chronically as well as acutely Ang II-infused hypertensive rats. The facts suggested that mechanisms for maintaining high peripheral vascular resistance in chronically Ang II-infused hypertensive rats were different from those involved in the acute hypertensive response to Ang II from the perspective of ROS sensitivity and that there must be a time-dependent transition from ROS-non-sensitive to ROS-sensitive vasoconstriction during prolonged Ang II infusion. In this review, we introduced our recent work describing the time transition of ROS sensitivity in Ang II-induced hypertension and activation of cardiovascular mitogen-activated protein kinase (MAPK) in acute and chronic phases Ang II infusion in conscious rats.

【 授权许可】

Unknown