Preperfusing with Bay K 8644 (500 nmol/L), an agonist of calcium channels, also eliminated the effect of Agm on carotid baroreceptor activity.

• (4 )预先灌流Ca2 +通道激动剂BayK 86 44 (5 0 0nmol/L)亦可取消Agm对窦神经传入放电的影响。