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β型肾上腺素能受体(以下简称β受体)是受体领域中研究最早、最深入、最细致的一种。因此,了解β受体的作用机制有助于了解受体的一般特征。通常所说的心脏β受体系指β_1型受体而言,那么心脏上有无β_2受体?Cavlson于1972年首先在猫心脏上用药理学方法证明存在β_2受体,并证明β_2受体激动剂对心脏的变时性作用大于变力性作用,推测β_2受体存在于窦房结处较心室为多。采
Beta-adrenergic receptor (hereinafter referred to as beta receptor) is the earliest, deepest and most detailed one in the field of receptors. Therefore, understanding the mechanism of action of beta receptors helps to understand the general characteristics of receptors. The so-called heart β receptor refers to the β 1 -type receptor, so the heart with or without β 2 receptor? Cavlson in 1972 first on the cat heart pharmacological methods to prove the presence of β 2 receptor and proves β 2 receptor agonist The chronotropic effect on the heart is greater than the role of variable force, presumably β_2 receptor present in the sinus node more than the ventricles. Mining