n/a
Abstract Title:

North American ginseng (Panax quinquefolius) suppressesβ-adrenergic-dependent signalling, hypertrophy, and cardiac dysfunction.

Abstract Source:

Can J Physiol Pharmacol. 2016 Dec ;94(12):1325-1335. Epub 2016 Aug 17. PMID: 27797280

Abstract Author(s):

Xilan Tang, Xiaohong Tracey Gan, Venkatesh Rajapurohitam, Cathy Xiaoling Huang, Jenny Xue, Edmund M K Lui, Morris Karmazyn

Article Affiliation:

Xilan Tang

Abstract:

There is increasing evidence for a beneficial effect of ginseng on cardiac pathology. Here, we determined whether North American ginseng can modulate the deleterious effects of theβ-adrenoceptor agonist isoproterenol on cardiac hypertrophy and function using in vitro and in vivo approaches. Isoproterenol was administered for 2 weeks at either 25 mg/kg per day or 50 mg/kg per day (ISO25 or ISO50) via a subcutaneously implanted osmotic mini-pump to either control rats or thosereceiving ginseng (0.9 g/L in the drinking water ad libitum). Isoproterenol produced time- and dose-dependent left ventricular dysfunction, although these effects were attenuated by ginseng. Improved cardiac functions were associated with reduced heart masses, as well as prevention in the upregulation of the hypertrophy-related fetal gene expression. Lung masses were similarly attenuated, suggesting reduced pulmonary congestion. In in vitro studies, ginseng (10 μg/mL) completely suppressed the hypertrophic response to 1 μmol/L isoproterenol in terms of myocyte surface area, as well as reduction in the upregulation of fetal gene expression. These effects were associated with attenuation in both protein kinase A and cAMP response element-binding protein phosphorylation. Ginseng attenuates adverse cardiac adrenergic responses and, therefore, may be an effective therapy to reduce hypertrophy and heart failure associated with excessive catecholamine production.

Study Type : Animal Study, In Vitro Study

Print Options


Key Research Topics

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2024 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.