Mechanisms of Chinese Medicine Xinmailong's protection against heart failure in pressure-overloaded mice and cultured cardiomyocytes.

Title

Mechanisms of Chinese Medicine Xinmailong's protection against heart failure in pressure-overloaded mice and cultured cardiomyocytes.

Creator

Qi Jianyong; Yu Juan; Tan Yafang; Chen Renshan; Xu Wen; Chen Yanfen; Lu Jun; Liu Qin; Wu Jiashin; Gu Weiwang; Zhang Minzhou

Publisher

Scientific reports

Date

2017
2017-02

Description

Patients with heart failure (HF) have high mortality and mobility. Xinmailong (XML) injection, a Chinese Medicine, is clinically effective in treating HF. However, the mechanism of XML's effectiveness on HF was unclear, and thus, was the target of the present study. We created a mouse model of pressure-overload-induced HF with transverse aortic constriction (TAC) surgery and compared among 4 study groups: SHAM (n = 10), TAC (n = 12), MET (metoprolol, positive drug treatment, n = 7) and XML (XML treatment, n = 14). Dynamic changes in cardiac structure and function were evaluated with echocardiography in vivo. In addition, H9C2 rat cardiomyocytes were cultured in vitro and the phosphorylation of ERK1/2, AKT, GSK3beta and protein expression of GATA4 in nucleus were detected with Western blot experiment. The results showed that XML reduced diastolic thickness of left ventricular posterior wall, increased ejection fraction and fraction shortening, so as to inhibit HF at 2 weeks after TAC. Moreover, XML inhibited the phosphorylation of ERK1/2, AKT and GSK3beta, subsequently inhibiting protein expression of GATA4 in nucleus (P \textless 0.001). Together, our data demonstrated that XML inhibited the TAC-induced HF via inactivating the ERK1/2, AKT/GSK3beta, and GATA4 signaling pathway.

Subject

Animal; Animals; Cardiac/cytology/*drug effects/metabolism; Cell Nucleus/metabolism; Cell Survival/drug effects; Cells; Chinese Herbal/*administration & dosage/pharmacology; Constriction; Cultured; Disease Models; Drugs; Echocardiography; GABA Plasma Membrane Transport Proteins/*metabolism; Gene Expression Regulation/drug effects; Glycogen Synthase Kinase 3 beta/metabolism; Heart Failure/etiology/metabolism/physiopathology/*prevention & control; Humans; MAP Kinase Signaling System/drug effects; Mice; Myocytes; Pathologic; Phosphorylation; Proto-Oncogene Proteins c-akt/metabolism; Rats

Identifier

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

42843–42843

Volume

7

Citation

Qi Jianyong; Yu Juan; Tan Yafang; Chen Renshan; Xu Wen; Chen Yanfen; Lu Jun; Liu Qin; Wu Jiashin; Gu Weiwang; Zhang Minzhou, “Mechanisms of Chinese Medicine Xinmailong's protection against heart failure in pressure-overloaded mice and cultured cardiomyocytes.,” NEOMED Bibliography Database, accessed March 5, 2021, https://neomed.omeka.net/items/show/4009.

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