The neuroprotective effect of Wenfei Jiangzhuo formula on vascular dementia model rats based on regulation of mitochondrial homeostasis by PGAM5-Drp1 axis
- VernacularTitle:基于PGAM5-Drp1轴调控线粒体稳态探讨温肺降浊方对血管性痴呆模型大鼠的神经保护作用
- Author:
Ding ZHANG
1
;
Zhi-Han HU
;
Chun-Ying SUN
;
Xiao-Dong ZHU
;
Fang-Cun LI
;
Ming-He JIANG
;
Hong-Ling QIN
;
Wei CHEN
;
Yue-Qiang HU
Author Information
- Keywords: Wenfei Jiangzhuo formula; PGAM5-Drp1 axis; mtochondrial homeostasis; vascular dementia; neuroprotection
- From: Chinese Pharmacological Bulletin 2024;40(11):2158-2164
- CountryChina
- Language:Chinese
- Abstract: Aim To observe the effects of Wenfei Jiangzhuo formula(WFJZF)on rats with vascular de-mentia and investigate its possible mechanism of ac-tion.Methods Thirty-six healthy male SD rats were randomly divided into the sham group,model group,donepezil group,and low-dose,medium-dose and high-dose groups of Wenfei Jiangzhuo formula,with six rats per group.Except for the sham group,the other groups were prepared as VaD models,and each group was gavaged with the corresponding drugs after suc-cessful modeling,and tests were performed after three weeks of treatment.Behavioral,hippocampal CA1 area morphology,neural dendrites and mitochondrial chan-ges were observed in all groups of rats,and phospho-glycerate mutase 5(PGAM5),dynamics-related pro-teins1(Drp1),opticatrophyprotein-1(OPA1),and other proteins were detected in each group.Results Compared with the sham group,rats in the model group and each intervention group had prolonged es-cape latency(P＜0.05),a shorter number of travers-als across the platforms(P＜0.05),a sparse morphol-ogy of hippocampal neurons,a reduction in the number of secondary dendritic spines,and a rupture of the out-er membrane of the mitochondria;the expression of the PGAM5 and Drp1 proteins in hippocampal tissues was elevated(P＜0.05),and the expression of the OPA1 and Mfn1/2 protein expression decreased(P＜0.05);compared with the model group,donepezil group and Wenfei Jiangzhuo formula high-dose group of rats had shorter evasion latency(P＜0.05),increased number of times to traverse the platform(P＜0.05),increased number of hippocampal neurons,tightly packed,more secondary dendritic structures,and reduced mitochon-drial damage;the expression of PGAM5 and Drp1 pro-teins was reduced(P＜0.05),and the expression of OPA1 and Mfn1/2 proteins was elevated(P＜0.05).Conclusions Wenfei Jiangzhuo formula can regulate the PGAM5-Drp1 signaling axis to improve the balance of mitochondrial homeostasis,thus improving the cog-nitive condition of the brain and exerting cerebroprotec-tive effects.
