Cardiac Myosin Light Chain Kinase Is Necessary for Myosin Regulatory Light Chain Phosphorylation and Cardiac Performance in Vivo

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Structured PICO

Population

Male and female mice

Intervention

Ablation of cardiac myosin light chain kinase (cMLCK) expression, with or without isoproterenol infusion

Comparator

Wild type mice

Outcome

Myosin regulatory light chain (RLC) phosphorylation and cardiac performance (fractional shortening, left ventricular mass, dimensions)surrogate

cMLCK is the predominant protein kinase that maintains basal RLC phosphorylation required for normal physiological cardiac performance in vivo.

No takes yet. Share an insight, caveat, or question.

cMLCK modulation warrants no clinical action yet; leaves open its therapeutic targeting in human heart failure.

Ding et al. (2010) studied this question.

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