Loss-of-function CYP2C9 variants: finding the correct clinical role for Type 2 diabetes pharmacogenetic testing
- PMID: 20222813
- PMCID: PMC2852129
- DOI: 10.1586/erc.10.5
Loss-of-function CYP2C9 variants: finding the correct clinical role for Type 2 diabetes pharmacogenetic testing
Abstract
Continuing advances in genetic discovery have uncovered several dozen loci that are associated with Type 2 diabetes, including genetic variants that appear to modify responses to commonly prescribed diabetes medications. The use of an individual's genetic information to guide therapy choices raises the possibility of 'personalized medicine', wherein each patient's treatment plan is tailored based on genotype results. However, before such a model of care can be implemented, research is needed to more clearly quantify the association of genetic variation with treatment outcomes and adverse effects. In this article, we review a study examining the association of genetic variation in the cytochrome P450 2C9 enzyme with glycemic response to sulfonylureas in a large cohort of patients with Type 2 diabetes from the Genetics of Diabetes Audit and Research Tayside Study (Go-DARTS).
Comment on
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Loss-of-function CYP2C9 variants improve therapeutic response to sulfonylureas in type 2 diabetes: a Go-DARTS study.Clin Pharmacol Ther. 2010 Jan;87(1):52-6. doi: 10.1038/clpt.2009.176. Epub 2009 Sep 30. Clin Pharmacol Ther. 2010. PMID: 19794412
References
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Zhou K, Donnelly L, Burch L, et al. Loss-of-function CYP2C9 variants improve therapeutic response to sulfonylureas in Type 2 diabetes: a Go-DARTS study. Clin. Pharmacol. Ther. 2010;87(1):52–56. • Proof-of-concept in a real-world clinical cohort that homozygous loss-of-function mutations in the enzyme that metabolizes sulfonylurea lead to modestly improved glycemia, without examining the adverse effects of such treatment.
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