摘要
目的基于ERK/GSK-3β/CREB/BDNF信号通路探究滋水清肝饮对慢性束缚应激(CRS)抑郁小鼠的作用。方法除空白组外,其余小鼠建立CRS抑郁模型,造模成功后分为模型组、盐酸氟西汀组(10 mg/kg)和滋水清肝饮低、中、高剂量组(8.835、17.670、35.340 g/kg),给予相应剂量药物干预,同时继续进行CRS处理。给药7、14 d进行糖水偏好实验及行为学实验。给药14 d后,HE染色观察小鼠海马组织形态学改变,采用试剂盒检测血清超氧化物歧化酶(SOD)活性和丙二醛(MDA)水平,ELISA法检测血清5-羟色胺(5-HT)、肿瘤坏死因子-α(TNF-α)、白介素-1β(IL-1β)水平,RT-qPCR法检测海马组织BDNF、TNF-α、IL-1βmRNA表达,Western blot法检测海马组织ERK1/2、p-ERK1/2、GSK3β、p-GSK3β、CREB、BDNF蛋白表达。结果与模型组比较,给药14 d后,盐酸氟西汀组和滋水清肝饮中剂量组小鼠糖水偏好率升高(P<0.01),悬尾不动时间和强迫游泳不动时间缩短(P<0.01),海马组织神经细胞损伤有所改善,血清MDA、TNF-α、IL-1β水平降低(P<0.05,P<0.01),SOD活性和5-HT水平升高(P<0.05,P<0.01),海马组织TNF-α、IL-1βmRNA表达降低(P<0.01),BDNF mRNA和p-ERK1/2、p-GSK3β、CREB、BDNF蛋白表达升高(P<0.05,P<0.01)。结论滋水清肝饮可改善慢性束缚应激小鼠抑郁样行为,其机制可能与调节小鼠海马ERK/GSK3β/CREB/BDNF信号通路有关。
AIM To explore the effects of Zishui Qinggan Decoction on the mouse model of depression induced by chronic restraint stress(CRS)via ERK/GSK3β/CREB/BDNF signaling pathway.METHODS Except for those of the blank group,the mice of other groups were induced into depression models by CRS,and divided into the model group,the fluoxetine hydrochloride group(10 mg/kg)and the low,medium and high dose Zishui Qinggan Decoction groups(8.835,17.670 and 35.340 g/kg)for the corresponding drug intervention and simultanous CRS treatment.The mice had their sugar water preference experiment and behavior experiment on the 7th and 14th day after administration;the observation of the hippocampal morphological changes by HE staining,the detection of the superoxide dismutase(SOD)activity and malondialdehyde(MDA)level in serum by kits,the detection of levels of serum 5-hydroxytryptamine(5-HT),tumor necrosis factor-α(TNF-α)and interleukin-1β(IL-1β)by ELISA,the detection of the hippocampal mRNA expressions of BDNF,TNF-αand IL-1βby RT-qPCR method,and the detection of the hippocampal protein expressions of ERK1/2,p-ERK1/2,GSK3β,p-GSK3β,CREB and BDNF by Western blot method 14 days after administration.RESULTS Compared with the model group,after 14 days of administration,both fluoxetine hydrochloride group and medium-dose Zishui Qinggan Decoction group displayed increased preference rate of sugar water(P<0.01),shortened immobility time of tail suspension and forced swimming(P<0.01),improved hippocampal damage of nerve cells,decreased levels of serum MDA,TNF-αand IL-1β(P<0.05,P<0.01),increased SOD activity and 5-HT level(P<0.05,P<0.01),decreased hippocampal mRNA expressions of TNF-αand IL-1β(P<0.01),and decreased expressions of BDNF mRNA and p-ERK1/2,p-GSK3β,CREB and BDNF proteins(P<0.05,P<0.01).CONCLUSION Zishui Qinggan Decoction can improve the depression-like behaviors in mice exposed to CRS,and its mechanism may be related to the regulation of hippocampal ERK/GSK3β/CREB/BDNF signaling pathway.
作者
曹珊珊
袁诗宇
史磊磊
张瑞华
张雨涵
石勇
王欣
韩朝军
刘继平
CAO Shan-shan;YUAN Shi-yu;SHI Lei-lei;ZHANG Rui-hua;ZHANG Yu-han;SHI Yong;WANG Xin;HAN Chao-jun;LIU Ji-ping(College of Pharmacy,Shaanxi University of Chinese Medicine,Xianyang 712046,China;The Second Hospital Affiliated to Shaanxi University of Chinese Medicine,Xianyang 712046,China)
出处
《中成药》
CAS
CSCD
北大核心
2024年第1期87-93,共7页
Chinese Traditional Patent Medicine
基金
陕西省自然科学基础研究计划项目(2022JQ-918)
陕西省教育厅专项科研计划项目(21JK0607)
陕西省中医药管理局科研项目(2021-ZZ-JC003)
陕西中医药大学校级科研课题项目(2021GP25)。
