When the aorta rings were incubated with Cic and Bep, a potentialized inhibitory effect was observed on KCh but not NE-induced contractions.

• Bep主要抑制KCl激动的主动脉环收缩。 Cic与Bep联孵时,Cic可增加Bep抑制NE激动主动脉环收缩的效应;