2 条结果 关键词:caveolae ×

Chronic β1-adrenergic blockade enhances myocardial β3-adrenergic coupling with nitric oxide-cGMP signaling in a canine model of chronic volume overload: new insight into mechanisms of cardiac benefit with selective β1-blocker therapy.

Basic research in cardiology 2015 Trappanese DM, Liu Y, McCormick RC, Cannavo A 等 16 人

β1-肾上腺素能拮抗剂美托洛尔可改善慢性心力衰竭、孤立性二尖瓣反流(MR)和缺血性心脏病动物及患者心功能,但机制未明。美托洛尔可上调心肌β3-肾上腺素能受体(β3AR)表达,β3AR经神经元一氧化氮合酶(nNOS)介导的信号具有心脏保护作用。本研究检测美托洛尔慢性β1阻断是否增强MR诱导容量负荷过重犬心脏中β3AR与一氧化氮-环磷酸...

Caveolae compartmentalise β2-adrenoceptor signals by curtailing cAMP production and maintaining phosphatase activity in the sarcoplasmic reticulum of the adult ventricular myocyte.

Journal of molecular and cellular cardiology 2012 Macdougall DA, Agarwal SR, Stopford EA, Chu H 等 9 人

心室肌细胞中,β1-肾上腺素受体(β1-AR)激活可高效诱导正性肌力与正性舒张效应,而β2-肾上腺素受体(β2-AR)激活通常功能效应有限,这源于β2-AR来源cAMP依赖信号的区室化。本研究探讨富含胆固醇和caveolin-3(Cav-3)的小窝(caveolae)如何参与成年大鼠心室肌细胞中的区室化。选择性激活β2-AR(zin...