This article was originally posted March 29.

By Turna Ray

CHICAGO – A recent analysis of genotype and clinical data from more than 700 heart failure patients found that individuals who are homozygous for the wild-type allele Ser49 in the beta 1-adrenergic receptor gene experienced prolonged survival when they received treatment with beta-blockers compared to Ser49 homozygotes who didn't receive such treatment.

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