Mechanisms Underlying the Antidepressant Effect of Acupuncture the CaMK Signaling Pathway

Overview

Journal Front Behav Neurosci

Specialty Psychology

Date 2020 Dec 21

PMID 33343309

Citations 11

Authors

Lu Bai

Di Zhang

Tao-Tao Cui

Ji-Fei Li

Yang-Yang Gao

Nan-Yi Wang

Peng-Li Jia

Hui-Yuan Zhang

Zhong-Ren Sun

Wei Zou

Long Wang

Affiliations

Soon will be listed here.

Abstract

The CaMK pathway has been proven to play an important role in regulating cognitive function and emotional response. Acupuncture through the CaMK pathway improves depression-like behavior and the molecular mechanism related to its antidepressant remains to be explored. In this study, we aimed to determine whether the ability of acupuncture at Baihui (GV20) and Shenting (GV24) points to treat depression is related to the regulation of key proteins in the CaMK pathway. A rat model of depression was induced by chronic unpredicted mild stress (CUMS). Model rats in the electroacupuncture group were subjected to acupuncture at the Baihui (GV20) and Shenting (GV24) acupoints once a day for 20 min. Model rats in the fluoxetine group were gavaged with fluoxetine (1.8 mg/kg). Immunohistochemistry and Western blotting assays were used to evaluate immunoreactivity for and the protein expression levels of CaMKII, CaMKIV, and CaM. The results showed that electroacupuncture had a significant effect in rats with depression. Electroacupuncture and fluoxetine regulated the expression of key proteins in the CaMK signaling pathway, which is related to depression, in the hippocampi of rats. This indicates that acupuncture at Baihui (GV20) and Shenting (GV24) may alleviate depressive symptoms and reduce work- and life-related burdens and stress by regulating the CaMK signaling pathway.

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