...正文快照】: 高血压左心室肥厚(LVH)时,心血管事件的发生率显著增加,LVH与心肌细胞内游离钙浓度升高密切相关,而肌浆网钙泵(SERCA)是调节细胞内Ca2+平衡的重要因素,其在心肌肥厚中的作用也正逐渐被人们关注。
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结合既往的研究,提出黄芪及其有效成分可能通过影响钙调机制相关的Ryanodine受体(RyR)、肌浆网钙泵(SERCA-ATPase),磷酸受纳蛋白(PLB)以及肌钙蛋白(Tn)的含量或功能,从而增加心肌收缩力,改善心功能衰竭.
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Sarcoplasmic reticulum Ca2+ pump (SERCA) is an important transmembrane protein for transferring calcium ions from the cytoplasmic compartment to the sarcoplasmic reticulum compartment, and its activity is regulated by phospholamban (PLN), a protein interacted with it.
肌浆网钙泵是将钙离子从细胞质内转运到肌浆网内的重要跨膜蛋白,它的活性受到与之相互作用的受磷蛋白的调控。
参考来源 - 受磷蛋白的空间结构及其分子动力学模拟·2,447,543篇论文数据,部分数据来源于NoteExpress
结论福辛普利不仅能防治心肌肥厚,而且能保护肌浆网钙泵功能,防止心肌钙超载损伤。
Conclusions Fosinopril could not only prevent and treat myocardial hypertrophy, but also could maintain the functions of SERCA and prevent myocardial calcium overload.
其机制可能与抑制钙离子的内流及改变肌浆网上的钙泵活性有关。
Its mechanism may be related to inhibition of calcium influx and mediation activity of calcium pump in sarcoplasmic reticulum.
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