The results suggest that motilin- and gastrin-induced contraction of rat antral smooth muscle cells is mediated by stimulating Gi protein coupled with PLC that produces IP3.

• 结果表明: 胃动素和胃泌素通过兴奋与磷脂酶C耦联的Gi蛋白, 产生三磷酸肌醇, 激发胃窦平滑肌细胞的收缩反应。