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Brain region-specific roles of brain-derived neurotrophic factor in social stress-induced depressive-like behavior

Neural Regeneration Research 2025年第1期20卷 159-173页

作者： Man Han Deyang Zeng Wei Tan Xingxing Chen Shuyuan Bai Qiong Wu Yushan Chen Zhen Wei Yufei Mei Yan Zeng Brain Science and Advanced Technology Institute Wuhan University of Science and TechnologyWuhanHubei ProvinceChina Geriatric Hospital Affiliated to Wuhan University of Science and Technology WuhanHubei ProvinceChina School of Public Health Wuhan University of Science and TechnologyWuhanHubei ProvinceChina

Brain-derived neurotrophic factor is a key factor in stress adaptation and avoidance of a social stress behavioral response.Recent studies have shown that brain-derived neurotrophic factor expression in stressed mice is brain region–specific,particularly involving the corticolimbic system,including the ventral tegmental area,nucleus accumbens,prefrontal cortex,amygdala,and hippocampus.Determining how brain-derived neurotrophic factor participates in stress processing in different brain regions will deepen our understanding of social stress psychopathology.In this review,we discuss the expression and regulation of brain-derived neurotrophic factor in stress-sensitive brain regions closely related to the pathophysiology of depression.We focused on associated molecular pathways and neural circuits,with special attention to the brain-derived neurotrophic factor–tropomyosin receptor kinase B signaling pathway and the ventral tegmental area–nucleus accumbens dopamine circuit.We determined that stress-induced alterations in brain-derived neurotrophic factor levels are likely related to the nature,severity,and duration of stress,especially in the above-mentioned brain regions of the corticolimbic system.Therefore,BDNF might be a biological indicator regulating stress-related processes in various brain regions.

关键词： amygdala chronic mild stress chronic social defeat stress corticolimbic system depression hippocampus medial prefrontal cortex nucleus accumbens social stress models ventral tegmental area

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Ginsenoside Rb1 produces antidepressant-like effects in chronic social defeat stress model of depression through BDNF-TrkB sig⁃naling pathway

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中国药理学与毒理学杂志 2021年第9期35卷 685-685页

作者： JIANG Ning HUANG Hong ZHANG Yi-wen LYU Jing-wei WANG Qiong LIU Xin-min Research Center for Pharmacology and Toxi-cology Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100193China Affiliated TCM Hospital/School of Pharmacy/Sino-Portugal TCM International Cooperation Center Southwest Medical UniversityLuzhou 646000China

OBJECTIVE Ginsenoside Rb1(Rb1),an important bioactive ingredient of Panax ginseng,has potent neuroprotective effects.The objective of the study is to elucidate the impact of Rb1 treatment on chronic social defeat stress(CSDS)-induced depressive-like behaviors and its related mechanism.METHODS AND RE⁃SULTS The daily oral administration of Rb1(35 and 70 mg·kg-1)and imipramine(15 mg·kg-1)for 28 d significantly reversed the social avoidance behavior,anhedonia,and behavioral despair via CSDS exposure,as demonstrated by the consid⁃erable elevation in the time in the zone in social interaction test and consumption of sucrose solu⁃tion in sucrose preference test and decrease of immobility time in forced swim test.Moreover,Rb1 obviously restored the CSDS-induced decrease of BDNF-signaling pathway and hippo⁃campal neurogenesis.Rb1 significantly increased the hippocampal levels of ERK,AKT,and CREB phosphorylation and increased the number of DCX+cells in DG.Importantly,the antidepres⁃sant effects of Rb1 were completely blocked in mice by using K252a(the nonselective tyrosine kinase B inhibitor).CONCLUSION Rb1 exerts promising antidepressant-like effects in mice with CSDS-induced depression,and its effects was facilitated by enhancing the BDNF signaling cas⁃cade and up-regulation of hippocampal neuro⁃genesis.

关键词： ginsenoside Rb1 depression chronic social defeat stress neurogenesis

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Xiaoyao San,a Chinese herbal formula,ameliorates depression-like behavior in mice through the AdipoR1/AMPK/ACC pathway in hypothalamus

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Journal of Integrative Medicine 2022年第5期20卷 442-452页

作者： Kai-rui Tang Xiao-wei Mo Xing-yi Zhou Yue-yue Chen Dong-dong Liu Liang-liang He Qing-yu Ma Xiao-juan Li Jia-xu Chen Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine School of Traditional Chinese MedicineJinan UniversityGuangzhou 510632Guangdong ProvinceChina College of Pharmacy Jinan UniversityGuangzhou 510632Guangdong ProvinceChina

Objective Depression and metabolic disorders have overlapping psychosocial and pathophysiological causes.Current research is focused on the possible role of adiponectin in regulating common biological mechanisms.Xiaoyao San(XYS),a classic Chinese medicine compound,has been widely used in the treatment of depression and can alleviate metabolic disorders such as lipid or glucose metabolism disorders.However,the ability of XYS to ameliorate depression-like behavior as well as metabolic dysfunction in mice and the underlying mechanisms are unclear.Methods An in vivo animal model of depression was established by chronic social defeat stress(CSDS).XYS and fluoxetine were administered by gavage to the drug intervention group.Depression-like behaviors were analyzed by the social interaction test,open field test,forced swim test,and elevated plus maze test.Glucose levels were measured using the oral glucose tolerance test.The involvement of certain molecules was validated by immunofluorescence,histopathology,and Western blotting.In vitro,hypothalamic primary neurons were exposed to high glucose to induce neuronal damage,and the neuroprotective effect of XYS was evaluated by cell counting kit-8 assay.Immunofluorescence and Western blotting were used to evaluate the influences of XYS on adiponectin receptor 1(AdipoR1),adenosine 5’-monophosphate-activated protein kinase(AMPK),acetyl-coenzyme A carboxylase(ACC)and other related proteins.Results XYS ameliorated CSDS-induced depression-like behaviors and glucose tolerance impairment in mice and increased the level of serum adiponectin.XYS also restored Nissl bodies in hypothalamic neurons in mice that exhibited depression-like behaviors and decreased the degree of neuronal morphological damage.In vivo and in vitro studies indicated that XYS increased the expression of AdipoR1 in hypothalamic neurons.Conclusion Adiponectin may be a key regulator linking depression and metabolic disorders;regulation of the hypothalamic AdipoR1/AMPK/ACC pathway plays an important role in treatment

关键词： Depression Xiaoyao San chronic social defeat stress Adiponectin Adiponectin receptor 1 Glucose metabolism disorders

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