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目的 :β2 -肾上腺素能系统在心力衰竭方面的作用始终存有争议 ,一种观点认为慢性激活的 β -肾上腺素能系统有害于心脏 ,而另一观点则指出减弱 β -肾上腺素能活性会减少其对心肌收缩性的支持 ,从而导致衰竭的进一步加剧。本研究旨在探明高水平的 β2 -肾上腺素能受体 ( β2 -
PURPOSE: The role of the β2 - adrenergic system in heart failure has always been controversial, with one view suggesting that the chronicly activated β - adrenergic system is detrimental to the heart, whereas another view suggests that attenuating β - adrenergic activity Reduce its support for myocardial contractility, leading to further exacerbation of failure. The aim of this study was to identify high levels of β2 - adrenergic receptor (β2 -