Torreya grandis Kernel Oil Alleviates Loperamide‐Induced Slow Transit Constipation via Up‐Regulating the Colonic Expressions of Occludin/Claudin‐1/ZO‐1 and 5‐HT3R/5‐HT4R in BALB/c Mice

Torreya grandis kernel has traditionally been used to remove intestinal parasites and increases intestinal motility. However, the effect of Torreya grandis kernel oil (TKO) on constipation has not yet been investigated. Therefore, mouse model is used to investigate the effect of TKO on slow transit constipation (STC) and its possible mechanism.