Baicalin Ameliorates Corticosterone-Induced Depression by Promoting Neurodevelopment of Hippocampal via mTOR/GSK3β Pathway.

Autor:	Wang, Zhe, Cheng, Ya-ting, Lu, Ye, Sun, Guo-qiang, Pei, Lin
Předmět:	BIOLOGICAL models RELIABILITY (Personality trait) PROTEIN kinases NERVE growth factor DRUG efficacy FLAVONOIDS HIPPOCAMPUS (Brain) ADRENOCORTICAL hormones ACADEMIC medical centers STAINS & staining (Microscopy) RAPAMYCIN ANIMAL experimentation WESTERN immunoblotting HEALTH outcome assessment CELL cycle proteins NEURAL development RANDOMIZED controlled trials NEUROPSYCHOLOGICAL tests CELLULAR signal transduction MENTAL depression FLUORESCENT antibody technique GENE expression profiling DESCRIPTIVE statistics STATISTICAL sampling POLYMERASE chain reaction MICE
Zdroj:	Chinese Journal of Integrative Medicine; May2023, Vol. 29 Issue 5, p405-412, 8p
Abstrakt:	Objective: To investigate the role of hippocampal neurodevelopment in the antidepressant effect of baicalin. Methods: Forty male Institute of Cancer Research mice were divided into control, corticosterone (CORT, 40 mg/kg), CORT+baicalin-L (25 mg/kg), CORT+baicalin-H (50 mg/kg), and CORT+fluoxetine (10 mg/kg) groups according to a random number table. An animal model of depression was established by chronic CORT exposure. Behavioral tests were used to assess the reliability of depression model and the antidepressant effect of baicalin. In addition, Nissl staining and immunofluorescence were used to evaluate the effect of baicalin on hippocampal neurodevelopment in mice. The protein and mRNA expression levels of neurodevelopment-related factors were detected by Western blot analysis and real-time polymerase chain reaction, respectively. Results: Baicalin significantly ameliorated the depressive-like behavior of mice resulting from CORT exposure and promoted the development of dentate gyrus in hippocampus, thereby reversing the depressive-like pathological changes in hippocampal neurons caused by CORT neurotoxicity. Moreover, baicalin significantly decreased the protein and mRNA expression levels of glycogen synthase kinase 3β (GSK3β), and upregulated the expression levels of cell cycle protein D1, p-mammalian target of rapamycin (mTOR), doublecortin, and brain-derived neurotrophic factor (all P<0.01). There were no significant differences between baicalin and fluoxetine groups (P>0.05). Conclusion: Baicalin can promote the development of hippocampal neurons via mTOR/GSK3β signaling pathway, thus protect mice against CORT-induced neurotoxicity and play an antidepressant role. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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