Effects of Wheat Grain Moxibustion on Hippocampal ERK/CREB-BDNF/TrkB Signaling Pathway and Neurotransmitters in Perimenopausal Depressive Disorder Rats
10.19879/j.cnki.1005-5304.202412507
- VernacularTitle:麦粒灸对围绝经期抑郁大鼠海马ERK/CREB-BDNF/TrkB信号通路及神经递质水平的影响
- Author:
Hong SU
1
;
Shengyong SU
;
Jing LI
;
Pu YANG
;
Xi ZHANG
;
Tian WANG
;
Qiongxiao WANG
Author Information
1. 广西中医药大学,广西 南宁 530001
- Publication Type:Journal Article
- Keywords:
perimenopausal depressive disorder;
wheat grain moxibustion;
hippocampus;
ERK/CREB signaling pathway;
BDNF/TrkB signaling pathway;
neurotransmitter;
rats
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2025;32(8):98-104
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effects of wheat grain moxibustion on the hippocampal ERK/CREB-BDNF/TrkB signaling pathway and neurotransmitters in rats with perimenopausal depressive disorder(PDD);To explore its mechanism in treating PDD.Methods Totally 24 female SD rats were randomly divided into sham-operation group,model group,Western medicine group and wheat grain moxibustion group,with 6 rats in each group.The PDD rat model was established by bilateral ovariectomy and chronic unpredictable mild stress.The wheat grain moxibustion group received moxibustion at the"Zhongwan","Xiawan","Qihai","Guanyuan"acupoints,with a conical moxa cone for intervention,6 cones per acupoint;the Western medicine group was given fluoxetine hydrochloride solution 1.8 mg/kg by gavage,once a day,for consecutive 21 d.Before and after modeling and after intervention,the body mass,sucrose water preference rate and immobility time in the forced swimming test of the rats were recorded;Transmission electron microscopy was used to observe the synaptic structure in hippocampal tissue;ELISA was used to detect the expressions of 5-HT,GABA and Glu in hippocampal tissue;Western blot was used to detect the expressions of ERK,p-ERK,CREB,p-CREB,BDNF and TrkB proteins in hippocampal tissue.Results Compared with the sham-operation group,the body mass and sucrose water preference rate of the model group decreased,and the immobility time in the forced swimming test was prolonged(P<0.01);the number of synaptic vesicles in hippocampus decreased,the thickness of the postsynaptic density decreased,the aggregation of transduction-related proteins decreased,the synaptic cleft increased;the contents of 5-HT and GABA in hippocampal tissue decreased,the content of Glu increased,and the expressions of p-ERK,p-CREB,BDNF and TrkB proteins decreased(P<0.01).Compared with the model group,the body mass and sucrose water preference rate of the rats in Western medicine group and wheat grain moxibustion group increased,and the immobility time in the forced swimming test was shortened(P<0.01);the area of the postsynaptic density in the hippocampus increased,the synaptic cleft reduced,the contents of 5-HT and GABA in hippocampal tissue increased,the content of Glu decreased,and the expressions of p-ERK,p-CREB,BDNF and TrkB proteins increased(P<0.01).Conclusion Wheat grain moxibustion can effectively alleviate depressive-like behavior in PDD rats,and its mechanism may be related to regulating neurotransmitter expressions and mediating the ERK/CREB-BDNF/TrkB signaling pathway,thereby regulating hippocampal neuroplasticity.
