α‐ADRENOCEPTORS CAN MEDIATE CHRONOTROPIC RESPONSES IN THE RAT HEART
α‐ADRENOCEPTORS CAN MEDIATE CHRONOTROPIC RESPONSES IN THE RAT HEART
复制标题
α-肾上腺素能受体可以介导大鼠心脏的变时反应
DOI:
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发表时间:
1981
影响因子:
7.3
通讯作者:
J. McGrath
中科院分区:
文献类型:
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作者:
N. Flavahan;J. McGrath
In the pithed rat, amidephrine, a ‘selective’ α1‐adrenoceptor agonist, evokes a positive chronotropic response. This response can be antagonized by prazosin but not by propranolol or by rauwolscine. Similarly, part of the chronotropic response to cardioaccelerator nerve stimulation is resistant to blockade by propranolol but is sensitive to prazosin or WB4101. We conclude that α1‐adrenoceptors can mediate a chronotropic response in the rat heart either to exogenous agonists or to the endogenous neurotransmitter noradrenaline.