Effect of Baoyuan Decoction on Chronic Heart Failure Model Rats Based on PERK/ATF4 Signaling Pathway
10.13359/j.cnki.gzxbtcm.2024.07.029
- VernacularTitle:基于PERK/ATF4信号通路探讨保元汤对慢性心力衰竭模型大鼠的影响
- Author:
Xiao-Yu GAO
1
;
Feng JI
;
Dan-Yang HAO
;
Yong TAN
;
Bai-Rong WANG
;
Yi-Wen ZHENG
;
Xue-Bin CHEN
Author Information
1. 陕西中医药大学,陕西咸阳 712046
- Keywords:
Baoyuan Decoction;
chronic heart failure;
PERK/ATF4 signaling pathway;
apoptosis;
inflammation;
oxidative stress;
rats
- From:
Journal of Guangzhou University of Traditional Chinese Medicine
2024;41(7):1851-1857
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the therapeutic effect and mechanism of Baoyuan Decoction for chronic heart failure model rat.Methods SD rats were randomly divided into blank group,model group,Baoyuan Decoction group,Captopril group,Baoyuan Decoction+CCT020312[protein kinase R-like endoplasmic reticulum kinase(PERK)activator]group,15 rats in each group.Except for the blank group,the rats in the other groups were induced by Adriamycin to construct a chronic heart failure model.After corresponding drug intervention,cardiac function indexes[left ventricular end-diastolic diameter(LVEDD),left ventricular ejection fraction(LVEF),left ventricular fractional shortening(LVFS),brain natriuretic peptide(BNP),cardiac troponin I(cTnI)],inflammation-related factors[tumor necrosis factor α(TNF-α),interleukin 1β(IL-1β)],oxidative stress factors[malondialdehyde(MDA),superoxide dismutase(SOD)]were detected in each group.Changes in apoptosis-related indicators[B-cell lymphoma 2(Bcl-2),B-cell lymphoma 2-associated X protein(Bax),Caspase-3]and PERK/transcription activator 4(ATF4)signaling pathway-related proteins glucose-regulated protein 78(GRP78),PERK,ATF4,C/EBP homologous protein(CHOP)levels.Results Compared with the blank group,LVEDD,BNP,cTnI,TNF-α,IL-1β,MDA levels,protein expression levels of Bax,Caspase-3,GRP78,PERK,ATF4,CHOP in the model group were significantly increased,LVEF,LVFS,SOD levels and Bcl-2 protein expression level were significantly decreased(all P＜0.05).Compared with the model group and Baoyuan Decoction+CCT020312 group,LVEDD,BNP,cTnI,TNF-α,IL-1β,MDA levels,protein expression levels of Bax,Caspase-3,GRP78,PERK,ATF4,CHOP in Baoyuan Decoction group and Captopril group were significantly decreased,LVEF,LVFS,SOD levels and Bcl-2 protein expression level were significantly increased(all P＜0.05).Compared with the Captopril group,there was no significant change in the above indexes(except CHOP protein expression level)in the Baoyuan Decoction group(P＞0.05).Conclusion Baoyuan Decoction can delay the progression of chronic heart failure rats,and its mechanism may be related to inhibiting the PERK/ATF4 signaling pathway to alleviate cardiomyocyte apoptosis,further reducing the degree of inflammatory response and oxidative stress,thereby promoting the repair of cardiac function and myocardial injury.
