Journal article

Abnormal Mitochondrial L-Arginine Transport Contributes to the Pathogenesis of Heart Failure and Rexoygenation Injury

David Williams, Kylie M Venardos, Melissa Byrne, Mandar Joshi, Duncan Horlock, Nicholas T Lam, Paul Gregorevic, Sean L McGee, David M Kaye

PLOS ONE | PUBLIC LIBRARY SCIENCE | Published : 2014

Abstract

BACKGROUND: Impaired mitochondrial function is fundamental feature of heart failure (HF) and myocardial ischemia. In addition to the effects of heightened oxidative stress, altered nitric oxide (NO) metabolism, generated by a mitochondrial NO synthase, has also been proposed to impact upon mitochondrial function. However, the mechanism responsible for arginine transport into mitochondria and the effect of HF on such a process is unknown. We therefore aimed to characterize mitochondrial L-arginine transport and to investigate the hypothesis that impaired mitochondrial L-arginine transport plays a key role in the pathogenesis of heart failure and myocardial injury. METHODS AND RESULTS: In mito..

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University of Melbourne Researchers