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  • Title: Quantifying cell death in the myocardium: myosin specific antibody in the evaluation of membrane defects.
    Author: Haber E.
    Journal: J Mol Cell Cardiol; 1985 Jul; 17 Suppl 2():53-8. PubMed ID: 2993633.
    Abstract:
    Methods for evaluating cardiac myocyte necrosis utilizing antibodies specific for the heavy or light chains of cardiac myosin are reviewed. Cell death, associated with sarcolemmal disruption, results in the leakage of myosin light chains from the cytoplasm as well as the accessibility of myosin heavy chains to exogenous specific antibodies. Measurement of plasma light chain concentration has been useful in the diagnosis of myocardial infarction, though more recently, patients with congestive cardiomyopathy associated with an inflammatory infiltrate have been identified by an elevated plasma light chain concentration. The binding of myosin heavy chains to necrotic myocytes has been useful in the study of mechanisms of ischemic cell death in cell culture, in the diagnosis and quantification of myocardial infarction, both experimentally and clinically, and more recently in the study of experimental myocarditis and cardiac transplantation. It is hoped that these methods may evolve as useful clinical tools in the identification of those cardiomyopathy patients whose course is characterized by rapid myocyte loss.
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