Fig. 3. Gastrointestinal motility test. After fasted for 6 hrs, rats were administered with Evans Blue via oral gavage (50mg/ml suspended in 0.5% methyl cellulose). Dye traveled distance was measured (cm) from the pyloric sphincter to the ileocecal junction. GI transit index is defined as (dye moved distance/total length of intestine) × 100(%). Metoclopramide (MCP) was used as positive control for the study (^*p<0.05, ^**p<0.01. N = 12~15).