[Study on motilin and spleen-yin deficiency]

The Plasma motilin level in 44 cases patients with Spleen-Yin deficiency (SYD) was observed and compared with Spleen-Qi Insufficiency (SQI), the normal control group. SYD patients were treated using self-made Shen Rou Yang Zhen Tang oral liquor. The results showed that plasma motilin level was higher significantly than that of the control group (P < 0.01), but was remarkably lower than that of SQI. The difference was significant among the three groups (P < 0.01). The abnormal incidence of positive plasma motilin was 65.91% and 75.00% respectively. It is conjectured that the plasma motilin level in SYD was related to excitability of vagus nerve, disturbance of gastro-intestinal internal environment, indigestion and malabsorption of GI tract.