Aucubin Protects against Myocardial Infarction-Induced Cardiac Remodeling via nNOSNO-Regulated Oxidative Stress
Joint Authors
Liao, Hai-Han
Yang, Zheng
Tang, Qi-Zhu
Duan, Ming-Xia
Wu, Qing-Qing
Liu, Chen
Xiao, Yang
Yuan, Yuan
Meng, Yan-yan
Source
Oxidative Medicine and Cellular Longevity
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-25
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Whether aucubin could protect myocardial infarction- (MI-) induced cardiac remodeling is not clear.
In this study, in a mouse model, cardiac remodeling was induced by left anterior descending coronary artery ligation surgery.
Mice were intraperitoneally injected with aucubin (10 mg/kg) 3 days post-MI.
Two weeks post-MI, mice in the aucubin treatment group showed decreased mortality, decreased infarct size, and improved cardiac function.
Aucubin also decreased cardiac remodeling post-MI.
Consistently, aucubin protected cardiomyocytes against hypoxic injury in vitro.
Mechanistically, we found that aucubin inhibited the ASK1/JNK signaling.
These effects were abolished by the JNK activator.
Moreover, we found that the oxidative stress was attenuated in both in vivo aucubin-treated mice heart and in vitro-treated cardiomyocytes, which caused decreased thioredoxin (Trx) consumption, leading to ASK1 forming the inactive complex with Trx.
Aucubin increased nNOS-derived NO production in vivo and vitro.
The protective effects of aucubin were reversed by the NOS inhibitors L-NAME and L-VINO in vitro.
Furthermore, nNOS knockout mice also reversed the protective effects of aucubin on cardiac remodeling.
Taken together, aucubin protects against cardiac remodeling post-MI through activation of the nNOS/NO pathway, which subsequently attenuates the ROS production, increases Trx preservation, and leads to inhibition of the ASK1/JNK pathway.
American Psychological Association (APA)
Yang, Zheng& Wu, Qing-Qing& Xiao, Yang& Duan, Ming-Xia& Liu, Chen& Yuan, Yuan…[et al.]. 2018. Aucubin Protects against Myocardial Infarction-Induced Cardiac Remodeling via nNOSNO-Regulated Oxidative Stress. Oxidative Medicine and Cellular Longevity،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1211423
Modern Language Association (MLA)
Yang, Zheng…[et al.]. Aucubin Protects against Myocardial Infarction-Induced Cardiac Remodeling via nNOSNO-Regulated Oxidative Stress. Oxidative Medicine and Cellular Longevity No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1211423
American Medical Association (AMA)
Yang, Zheng& Wu, Qing-Qing& Xiao, Yang& Duan, Ming-Xia& Liu, Chen& Yuan, Yuan…[et al.]. Aucubin Protects against Myocardial Infarction-Induced Cardiac Remodeling via nNOSNO-Regulated Oxidative Stress. Oxidative Medicine and Cellular Longevity. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1211423
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211423