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Updated: Jun 10, 2026

Implantation of an Isoproterenol Mini-Pump to Induce Heart Failure in Mice
Published on: October 3, 2019
[Association between beta3-adrenergic receptor and oxidative stress in chronic heart failure rats]
Yi-hui Kong1, Ying Zhang, Na Li
1Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China.
Objective:
To investigate the association between beta(3)-adrenergic receptor (beta(3)-AR) and oxidative stress in isoproterenol (ISO)-induced chronic heart failure (HF) rats.
Methods:
Seven weight-matched normal adult rats (control), 18 ISO induced heart failure rats and 21 ISO induced heart failure rats treated with specific beta(3)-AR inhibitor, SR59230A for 6 weeks were included in this study. Echocardiography was performed at the end of the study and the myocardial levels of total superoxide dismutase (T-SOD) and lipid peroxidation (LPO) were measured by colorimetry, myocardial expression of beta(3)-AR was detected by reverse transcription-polymerase chain reaction (RT-PCR).
Result:
Compared with control group, the cardiac function was significantly reduced and myocardial beta(3)-AR mRNA expression was significantly increased, LPO level was also significantly enhanced while T-SOD level was significantly reduced in ISO group and these changes could be significantly attenuated by treatment with SR59230A.
Conclusion:
Our results showed that myocardial upregulation of beta(3)-AR is associated with increased oxidative stress in this model and beta(3)-AR inhibitor may be a new therapeutic agent for heart failure treatment.
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