Novel oral edaravone attenuates cortex damage in rats with diabetic encephalopathy by downregulating caspase-3
10.16557/j.cnki.1000-7547.2025.01.005
- VernacularTitle:新型口服依达拉奉通过下调caspase-3减轻糖尿病脑病大鼠皮质损伤
- Author:
Yexun ZHANG
1
;
Jiajia MEI
1
;
Lujie BAO
1
;
Danni YANG
1
;
Xinglin ZHANG
1
;
Haiyun LUO
1
Author Information
1. 昆明医科大学基础医学院药理学系,昆明 650500
- Publication Type:Journal Article
- Keywords:
oral edaravone(EDA);
diabetic encephalopathy(DE);
oxidative stress;
apoptosis;
lipid metabolism disorder;
rat
- From:
Chinese Journal of Neuroanatomy
2025;41(1):32-38
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects of the novel oral edaravone(EDA)on rats with diabetic encepha-lopathy(DE).Methods:The network pharmacology research methodology was employed to elucidate the mechanism of action of oral EDA in the treatment of diabetes mellitus,identify intersecting targets,and conduct initial validation of these findings in vivo.Thirty male SD rats were randomly assigned to three groups:A normal control(control)group,a diabetic encephalopathy DE(DE)group,and an oral edaravone treatment(DE+EDA)group.Diabetic encephalop-athy was induced in both the DE and DE+EDA groups using the streptozotocin(STZ)method.After successful model-ing,the DE+EDA group received oral administration of EDA,while the other two groups were administered equal doses of saline as controls.Serum samples were examined for lipid release rate,and the protein expression levels of oxidative stress factor 3-nitrotyrosine(3-NT)and apoptotic factor cysteinyl aspartate specific proteinase-3(caspase-3)in brain tissues were detected by Western blot.Brain samples were stained with HE staining to observe the pathological changes.Histopathological changes were observed through hematoxylin-eosin(HE)staining.Results:Network pharmacological analysis yielded 27 core targets,and functional annotation of gene bioprocesses showed that the intersecting targets were mainly enriched in response to oxidative stress and neuronal apoptosis.Serum-related lipid assay showed that the DE+EDA group had significantly improved lipid metabolism disorders compared with the DE group.Additionally,expression levels of 3-NT and caspase-3 were significantly higher in the DE group when compared with controls(P＜0.05);How-ever,both markers exhibited a significant decrease within the DE+EDA treatment cohort as opposed to their counter-parts in the DE group(P＜0.05).HE staining showed that in DE group the cellular arrangement was disordered,the cells were shrunk with intact plasma membrane,and the nuclei were condensed showing karyopyknosis,fragmented and dissolved.Compared with the DE group,the brain tissue in the DE+EDA group was relatively dense and neatly ar-ranged,and the cell karyopyknosis,fragmentation and lysis were significantly improved.Conclusion:Both network pharmacology and in vivo experiments provide preliminary evidence that oral EDA reduces damage in diabetic encepha-lopathy rats.
