眼科新进展2025，Vol.45Issue(5)：348-353,6.DOI:10.13389/j.cnki.rao.2025.0061
基于ROS/TXNIP/NLRP3信号通路探究山茱萸新苷对糖尿病视网膜病变大鼠的治疗效果
Exploring the therapeutic effect of cornuside on diabetic retinopathy in rats based on the ROS/TXNIP/NLRP3 signaling pathway
摘要
Abstract
Objective To explore the therapeutic effect of cornuside on diabetic retinopathy(DR)in rats and ana-lyze the acting mechanism of the reactive oxygen species(ROS)/thioredoxin interacting protein(TXNIP)/NOD-like recep-tor thermal protein domain associated protein 3(NLRP3)signaling pathway in this process.Methods A total of 56 suc-cessfully modeled DR rats were randomly divided into the model group,the cornuside 20 mg·kg-1 group,the cornuside 40 mg·kg-1 group,the calcium dobesilate 5.8 mg·kg-1 group,with 14 rats in each group;while,meanwhile another 14 healthy rats were selected as the control group.After the corresponding intervention of rats in each group,retinal tissue in-flammation,oxidative stress indicators,fasting blood glucose(FBG),and angiogenic factor levels were detected by the en-zyme-linked immunosorbent assay(ELISA).The hematoxylin-eosin(HE)staining and terminal deoxynucleotidyl transfer-ase dUTP nick end labeling(TUNEL)staining were used to observe retinal histopathology and retinal cell apoptosis,re-spectively.The mRNA expression of ROS,TXNIP,and NLRP3 in the retinal tissue was detected by the quantitative fluores-cence polymerase chain reaction(PCR).The apoptosis of retinal cells and the protein expression of the ROS/TXNIP/NL-RP3 signaling pathway were detected by Western blotting.Results Compared with the control group,the model group showed disordered arrangement of retinal cells and a significant decrease in the cell number,accompanied by nuclear con-densation and edema;interleukin-6(IL-6),tumor necrosis factor-α(TNF-α),malondialdehyde(MDA),FBG,angiopoie-tin-1(Ang-1),vascular endothelial growth factor(VEGF),retinal cell apoptosis rate,ROS,and the mRNA and protein ex-pression levels of TXNIP and NLRP3 increased significantly,while superoxide dismutase(SOD)and B cell lymphoma-2(Bcl-2)protein expression levels decreased significantly(all P＜0.05).Compared with the model group,the arrangement of retinal cells in the cornuside 20 mg·kg-1 group,the cornuside 40 mg·kg-1 group,and the calcium dobesilate 5.8 mg·kg-1 group gradually became normal,the number of retinal cells increased,and the nuclear condensation and edema were relieved;IL-6,TNF-α,MDA,FBG,Ang-1,VEGF,retinal cell apoptosis rate,ROS,and the mRNA and protein expression level of TXNIP and NLRP3 decreased significantly,while the protein expression level of SOD and Bcl-2 increased signifi-cantly(all P＜0.05).In the intergroup comparison of the pathological damage of retinal tissue and the improvement degree of the above quantitative indexes in DR rats,the cornuside 40 mg·kg-1group was superior to the cornusin 20 mg·kg-1 group(all P＜0.05);the calcium dobesilate 5.8 mg·kg-1 group was superior to the cornusin 20 mg·kg-1 group,but infe-rior to the cornuside 40 mg·kg-1 group(all P＜0.05).Conclusion Cornuside can mitigate retinal inflammation,oxi-dative stress,and pathological damage in DR rats and inhibit blood glucose,retinal angiogenesis,and cell apoptosis.The acting mechanism of cornuside may be related to the inhibition of the ROS/TXNIP/NLRP3 signaling pathway.关键词
山茱萸新苷/糖尿病视网膜病变/视网膜细胞凋亡/活性氧/硫氧还蛋白相互作用蛋白/NOD样受体热蛋白结构域相关蛋白3Key words
cornuside/diabetic retinopathy/retinal cell apoptosis/reactive oxygen species/thioredoxin interacting protein/NOD-like receptor thermal protein domain associated protein 3分类
临床医学引用本文复制引用
陈梅,秦学维,姚贤凤,李宗智..基于ROS/TXNIP/NLRP3信号通路探究山茱萸新苷对糖尿病视网膜病变大鼠的治疗效果[J].眼科新进展,2025,45(5):348-353,6.基金项目
贵州省中医药管理局中医药、民族医药科学技术研究课题(编号:QZYY-2019-005) （编号:QZYY-2019-005）
