Functional and molecular adaptations in skeletal muscle of myoglobin-mutant mice.

Abstract

Myoglobin is a cytoplasmic hemoprotein that is restricted to cardiomyocytes and oxidative skeletal myofibers and facilitates oxygen delivery during periods of high metabolic demand. Myoglobin content in skeletal muscle increases in response to hypoxic conditions. However, we previously reported that myoglobin-null mice are viable and fertile. In the present… (More)

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