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Updated: Jul 24, 2025

A Model of Cardiac Remodeling Through Constriction of the Abdominal Aorta in Rats
Published on: December 2, 2016
Curcumol alleviates cardiac remodeling via the AKT/NF-κB pathway
Zhao Fang1, Shuang Li2, Feierkaiti Yushanjiang1
1Department of Cardiology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan 430060, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan 430060, China.
Insights
Curcumol, a natural compound, shows promise in treating cardiac remodeling by reducing heart dysfunction, fibrosis, and inflammation. It protects the heart by inhibiting the AKT/NF-κB pathway, offering a potential new therapy for cardiovascular diseases.
Area of Science:
- Cardiovascular Research
- Molecular Biology
- Pharmacology
Background:
- Cardiac remodeling is a critical, yet poorly understood, process in cardiovascular diseases, often leading to heart failure.
- Current treatment options for cardiac remodeling are limited, highlighting the need for novel therapeutic strategies.
Purpose of the Study:
- To investigate the protective effects of curcumol against cardiac remodeling.
- To elucidate the underlying molecular mechanisms of curcumol's action in cardiac remodeling.
Main Methods:
- Utilized an isoproterenol (ISO)-induced animal model to study cardiac remodeling.
- Assessed curcumol's effects on cardiac function, fibrosis, hypertrophy, and electrical remodeling.
- Investigated curcumol's impact on inflammation and apoptosis in myocardial and cardiomyocyte models.
- Explored the role of the AKT/NF-κB signaling pathway in mediating curcumol's effects.
Main Results:
- Curcumol significantly attenuated cardiac dysfunction, myocardial fibrosis, and hypertrophy in the ISO-induced model.
- Curcumol alleviated cardiac electrical remodeling, reducing the risk of ventricular fibrillation.
- Curcumol inhibited ISO- and TGF-β1-induced inflammation and apoptosis.
- Curcumol's protective effects were mediated by inhibiting the AKT/NF-κB pathway, as evidenced by an AKT agonist reversing its benefits.
Conclusions:
- Curcumol demonstrates significant protective effects against cardiac remodeling.
- Curcumol's therapeutic potential lies in its ability to inhibit inflammation, apoptosis, and fibrosis via the AKT/NF-κB pathway.
- Curcumol represents a promising candidate for the development of novel treatments for cardiac remodeling and associated cardiovascular diseases.
Abstract:
Cardiac remodeling is the final stage of almost all cardiovascular diseases, leading to heart failure and arrhythmias. However, the pathogenesis of cardiac remodeling is not fully understood, and specific treatment schemes are currently unavailable. Curcumol is a bioactive sesquiterpenoid that has anti-inflammatory, anti-apoptotic, and anti-fibrotic properties. This study aimed to investigate the protective effect of curcumol on cardiac remodeling and elucidate its relevant underlying mechanism. Curcumol significantly attenuated cardiac dysfunction, myocardial fibrosis, and hypertrophy in the animal model of isoproterenol (ISO)-induced cardiac remodeling. Curcumol also alleviated cardiac electrical remodeling, thereby reducing the risk of ventricular fibrillation (VF) after heart failure. Inflammation and apoptosis are critical pathological processes involved in cardiac remodeling. Curcumol inhibited the inflammation and apoptosis induced by ISO and TGF-β1 in mouse myocardium and neonatal rat cardiomyocytes (NRCMs). Furthermore, the protective effects of curcumol were found to be mediated through the inhibition of the protein kinase B (AKT)/nuclear factor-kappa B (NF-κB) pathway. The administration of an AKT agonist reversed the anti-fibrotic, anti-inflammatory, and anti-apoptotic effects of curcumol and restored the inhibition of NF-κB nuclear translocation in TGF-β1-induced NRCMs. Our study suggests that curcumol is a potential therapeutic agent for the treatment of cardiac remodeling.
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