Article
Effects of cardiac myosin isoform variation on myofilament function and crossbridge kinetics in transgenic rabbits.
Circulation. Heart failure - 1 Jul 2009
Suzuki Takeki, Palmer Bradley M, James Jeanne, Wang Yuan, Chen Zengyi, VanBuren Peter, Maughan David W, Robbins Jeffrey, LeWinter Martin M
Abstract excerpt
BACKGROUND: The left ventricles of both rabbits and humans express predominantly beta-myosin heavy chain (MHC). Transgenic (TG) rabbits expressing 40% alpha-MHC are protected against tachycardia-induced cardiomyopathy, but the normal amount of alpha-MHC expressed in humans is only 5% to 7% and its functional importance is questionable. This study was undertaken to identify a myofilament-based mechanism underlying...
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