Advances in Animal Cardiology
Online ISSN : 1883-5260
Print ISSN : 0910-6537
ISSN-L : 0910-6537
Cardiac Hypertrophy : Molecular Biological Approach
Shin-ichirou IMAMURA
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JOURNAL FREE ACCESS

1997 Volume 30 Issue 2 Pages 35-47

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Abstract

Cardiac hypertrophy is actually a compensatory mechanism in response to an increased load imposedd on the heart, and should, thus, be considered to be an adaptive and, essentially, favorable process. In the abcence of such compensation, the cardiac ventricles would be less able to respond adequately to any burden laid on the heart. However, hypertrophy is ultimately a major risk factor for cardiovascular disease, including coronary circulation abnormalities. Therefore, it is logical that an important goal of treatment is to control ventricular hypertrophy, but how effectively this can be done and whether the associated risk with ventricular hypertrophy is also brought under control is still a matter of discussion. In this review, to understand cardiac hypertrophy better from the aspect of molecular biology, the transition of myosin heavy chain isoforms which are among the most important contractile components, and signal trasduction pathways in cardiac myocytes to induce myocyte hypertrophy are summarized. In addition, a recent molecular approach to hypertrophic cardiomyopathy in human medicine is described.

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© Japanese Society of Veterinary Cardiology
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