白术对大鼠小肠平滑肌肌电的影响

Effects of Rhizoma Atractylodis Macrocephalae on Small Intestinal Myoelectric Activities in Rats

观察了白术水煎剂对清醒大鼠小肠平滑肌肌电的影响。结果表明:白术对大鼠小肠平滑肌肌电有明显易化作用,峰电位发生率、峰电位频率增加(P<0.01),峰电位幅度加大(P<0.05);慢波频率增快(P<0.05)。阿托品预处理后,白术兴奋大鼠小肠平滑肌肌电的效应明显减弱(P<0.05)。提示白术水煎剂对大鼠小肠平滑肌肌电有明显的兴奋作用,其效应可能与 M 受体有关。

The effect of 100% Rhizoma Atractylodis Macrocephalae(RAM)on the small intestinal myoelectric activities in con- scious rats was studied.The results suggested that RAM markedly facilitated the myoelectric activities,increasing the spike emitting rate,the frequency of spike(P<0.01),the spike amplitude and the frequency of slow wave(P<0.05). The resuhs indicate that RAM has an exciting effect on the small intestinal myoelectric activities in rats,which may be mediated via M receptor.