The results indicate that both exogenous and endogenous SP of dorsal vagal nucleus decrease the gastric myoelectric fast wave and motility, which is mediated by vagus nerve.

• 结果表明: 迷走背核外源性和内源性SP均抑制胃肌电和胃运动, 且通过其受体起作用；迷走背核SP的抑胃效应系通过迷走神经传出。