期刊
NEUROCHEMISTRY INTERNATIONAL
卷 63, 期 6, 页码 570-575出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuint.2013.09.019
关键词
Gender difference; Antidepressant; Venlafaxine; FKBP5
Gender differences in susceptibility to chronic mild stress (CMS) and effects of venlafaxine in rats have been investigated in the current study. Male and female SD rats were exposed to CMS or CMS plus chronic venlafaxine administration (10 mg/kg, 21 days) in order to study depressive behavior in rats. Rats were tested in open field test and sucrose preference test to figure out gender differences in behavior. Then serum corticosterone and the expression of FKBP5 in hippocampus of rats were detected to explore the possible mechanism. The results showed that the CMS impact on behavioral parameters and corticosterone levels and response to venlafaxine were gender dependent. Female rats appeared more vulnerable in the dysregulation of HPA axis to CMS. Venlafaxine treatment normalized depressive-like behavior in both gender. However, venlafaxine treated male rats exhibited better improved explore behavior and anhedonia. FKBP5 might be involved in the explanation of gender differences in CMS and venlafaxine treatment. Male and female rats respond differently to chronic stress and venlafaxine continuous treatment. This results have guiding meaning in design of trials related to stress induced depression. (C) 2013 Elsevier Ltd. All rights reserved.
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