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沙棘叶乙酸乙酯提取物50μg/ml能使离体豚鼠左心房肌收缩力加强,抑制肾上腺素诱发的自律性,延长功能不应期,对兴奋性无明显影响。此外可使豚鼠右心房的自发频率明显抑制而收缩力加强。
Seabuckthorn leaf ethyl acetate extract 50μg/ml can make isolated guinea pig left atrial muscle contractility, inhibition of epinephrine-induced autonomy, extended functional refractory period, no significant effect on excitability. In addition, the spontaneous frequency of the right atrium of guinea pigs can be significantly inhibited and the contractile force can be enhanced.