Objective: To explore the therapeutic effect and mechanism of Testudinis Carapacis et Plastri Colla on gastric ulcer model mice. Methods: Gastric ulcer model mice was established by intragastric administration of acetic acid. The experiment consisted of normal control group, model control group, Sanjiu Weitai group and Testudinis Carapacis et Plastri Colla group. After intragastric administration or normal saline for 1 week, body weight, spleen index, thymus index, lactase activity, gastric residue rate, gastric ulcer index and gastric ulcer in...