Key result
Immunization against the beta1-adrenergic receptor second extracellular loop and transfer of these antibodies induced progressive severe left ventricular dilatation and dysfunction in rats.
Why the study?
Does an autoimmune attack directed against the cardiac β1-adrenergic receptor cause dilated cardiomyopathy in an animal model?
Does an autoimmune attack directed against the cardiac β1-adrenergic receptor cause dilated cardiomyopathy in an animal model?
p-value: p=<0.001
This study provides direct evidence that an autoimmune attack against the cardiac β1-adrenergic receptor can cause dilated cardiomyopathy, suggesting it should be categorized as an autoimmune disease.
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Supports autoimmune dilated cardiomyopathy in rat models; leaves open human relevance and therapeutic targeting.
Jahns et al. (2004) studied Idiopathic dilated cardiomyopathy (n=61). beta1-ECII immunization and antibody transfer vs. GST or NaCl was evaluated on Left ventricular dilatation and dysfunction (p=<0.001). Immunization against the beta1-adrenergic receptor second extracellular loop and transfer of these antibodies induced progressive severe left ventricular dilatation and dysfunction in rats.
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