国际麻醉学与复苏杂志   2017, Issue (4): 7-7
    
过氧化物酶体增殖物激活受体-γ激动剂心肌保护作用机制的研究进展
杨桐, 郑宏, 王江1()
1.新疆医科大学第一附属医院
Peroxisome proliferator-activated receptor-γ protects heart from myocardial ischemia/reperfusion injury
 全文:
摘要:

背景 过氧化物酶体增殖物激活受体(peroxisome proliferator-activated receptors, PPARs)主要参与和能量代谢及炎症反应相关的基因转录。其γ亚型除作为治疗2型糖尿病的降糖靶点外,在心肌缺血/再灌注损伤(myocardial ischemia/reperfusion injury, MI/RI)中也具有关键作用,是减轻MI/RI、维持心脏功能的重要因子。 目的 探究过氧化物酶体增殖物激活受体-γ(peroxisome proliferator-activated receptor-γ, PPAR-γ)激动剂在MI/RI中心肌保护作用的相关机制。 内容 从PPAR?蛳γ及其激动剂和相关实验研究等方面进行综述,PPAR-γ激动剂能够通过依赖和不依赖PPAR-γ两条途径减少心肌梗死面积,改善心脏功能,发挥减轻MI/RI的作用,其中涉及抗炎、抗氧化、抗凋亡等多种重要保护机制。 趋向 深入研究PPAR-γ激动剂减轻MI/RI的具体机制可为临床提供新的心肌保护策略。

关键词: 过氧化物酶体增殖物激活受体-γ; 心肌; 再灌注损伤; 心肌保护
Abstract:

Background Peroxisome proliferator-activated receptors(PPARs) regulate the transcription of genes involved in energy metabolism and inflammation. As a target for the treatment of hypoglycemia in diabetes mellitus type 2, the γ subtype of PPARs alleviates myocardial ischemia/reperfusion injury(MI/RI), and maintains normal cardiac function.  Objective To review the relevant mechanisms underlying the protective effects of peroxisome proliferator-activated receptor-γ(PPAR-γ) agonists on MI/RI. Content PPAR-γ agonists and their pharmacological effects were first summarized. A series of evidence demonstrates that in MI/RI, PPAR-γ agonists reduce myocardial infarction area, and improve cardiac function, through both PPAR-γ-dependent and-independent pathways, involving anti-inflammatory, anti-oxidant, anti-apoptotic reactions. Trend Targeting PPAR-γ provides a new myocardial protection strategy against MI/RI. Additionally, new drugs with improved selectivity to PPAR-γ are highly demanded.

Key words: Peroxisome proliferator-activated receptor-γ; Myocardium; Reperfusion injury; Myocardial protection