Author:
Zhao Hong-Bo,Jiang You-Ming,Hou Ya-Jing,Yan Zhi-Yi,Liu Yue-Yun,Li Xiao-Juan,Gong Wei-Jun
Abstract
Background: Xiaoyaosan (XYS) has achieved definite curative effects in clinic. However, the mechanism is not clear. Previous studies of our team indicated XYS improved anxiety-like behaviors through inhibiting c-Jun N-terminal kinase (JNK) signaling pathway of hippocampus. Objectives: In the study, we explored whether the JNK signaling pathway is involved in the mechanism of XYS treating depression. Method: Forty-eight rats were divided randomly into 4 groups (n = 12): the control group (deionized water, p.o.), the model group (deionized water, p.o.), the fluoxetine group (2.08 mg/kg/day, p.o.), and the XYS group (3.9 g/kg/day, p.o.). All rats except for the control group were given continuous 21 days of chronic immobilization stress (CIS; 3 h/day). On day 29, the body weights and the behavioral tests, including the novelty suppressed feeding test, the open field test, and the elevated plus maze test, were measured. On day 30, all the rats were sacrificed, and three indices of the JNK signaling pathway were tested by Western blot. Results: The body weight and behavioral tests of all groups indicated that 21 days of CIS induced depression-like behaviors. After 21 days of treatment with fluoxetine and XYS, changes were seen in body weight, behaviors, and JNK, phosphorylated JNK (P-JNK), and phosphorylated c-Jun (P-c-Jun) levels in the hippocampus. Conclusions: XYS ameliorated the depression-like behaviors, potentially through affecting the JNK signaling pathway in the hippocampus.
Subject
Complementary and alternative medicine
Cited by
7 articles.
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