Abstract
The role of beta-receptor selectivity for the interaction between the angiotensin-converting enzyme (ACE) insertion/deletion polymorphism and beta-blocker therapy was investigated in 479 subjects with left ventricular dysfunction. Subjects were separated into no beta-blocker, beta1 -selective, and nonselective beta-blocker treatment groups. The D allele adversely affected transplant-free survival for subjects not on beta-blockers (p= 0.004). Treatment with selective beta1-blockers eliminated the impact of the D allele (p= 0.51) in a manner similar to nonselective beta1,2-blockers (p= 0.80). Treatment with beta1-blockers was sufficient to eliminate the adverse impact of the ACE D allele, suggesting this pharmacogenetic interaction is mediated through the beta1-receptor.
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