G-protein-coupled receptor kinase

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Pharmacogenomics

Regarding the treatment of heart failure, there is conflicting evidence whether beta-blockers are as effective in African-American patients as in Anglo patients.[1] This may be due to a polymorphism in African-American patients of the G protein–coupled cell surface receptor kinase (GRK5) (OMIM) that confers a natural "genetic beta-blockade".[2]

  1. ↑ Shekelle PG, Rich MW, Morton SC, et al (2003). "Efficacy of angiotensin-converting enzyme inhibitors and beta-blockers in the management of left ventricular systolic dysfunction according to race, gender, and diabetic status: a meta-analysis of major clinical trials". J. Am. Coll. Cardiol. 41 (9): 1529–38. PMID 12742294. [e]
  2. ↑ Liggett, Stephen B et al. 2008. A GRK5 polymorphism that inhibits [beta]-adrenergic receptor signaling is protective in heart failure. Nat Med advanced online publication. http://dx.doi.org/10.1038/nm1750 (Accessed April 29, 2008).
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