This SNP in the ACE gene, also known as G12269A, is reported to influence how quickly African Americans respond to the anti-hypertensive drug ramipril. rs4344(A;A) and rs4344(G;G) homozygotes are able to reach lower blood pressure levels upon treatment with ramipril sooner than rs4344(A;G) heterozygotes. The odds ratio reported for this study, comparing both homozygotes to heterozygotes, is 1.86 (CI: 1.32-3.23). [PMID 17885551
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Note that this SNP is in almost complete linkage disequilibrium with the insertion/deletion ACE gene SNP.
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