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  • Title: beta(1)-Adrenergic receptor function, autoimmunity, and pathogenesis of dilated cardiomyopathy.
    Author: Jahns R, Boivin V, Lohse MJ.
    Journal: Trends Cardiovasc Med; 2006 Jan; 16(1):20-4. PubMed ID: 16387626.
    Abstract:
    Dilated cardiomyopathy (DCM) is a heart disease characterized by progressive depression of cardiac function and left ventricular dilatation of unknown etiology in the absence of coronary artery disease. Genetic causes and cardiotoxic substances account for about one third of the DCM cases, but the etiology of the remaining 60% to 70% is still unclear. Over the past two decades, evidence has accumulated continuously that functionally active antibodies or autoantibodies targeting cardiac beta(1)-adrenergic receptors (anti-beta(1)-AR antibodies) may play an important role in the initiation and/or clinical course of DCM. Recent experiments in rats indicate that such antibodies can actually cause DCM. This article reviews current knowledge and recent experimental and clinical findings focusing on the role of the beta(1)-adrenergic receptor as a self-antigen in the pathogenesis of DCM.
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