Journal
JOURNAL OF LIPID RESEARCH
Volume 53, Issue 7, Pages 1384-1389Publisher
ELSEVIER
DOI: 10.1194/jlr.M026054
Keywords
dyslipidemias; genetics; nuclear receptors/FXR; statins; transport
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Funding
- Research Grants Council of the Hong Kong Special Administrative Region, China [CUHK 4472/06M]
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The bile acid-activated nuclear receptor farnesoid X receptor (FXR) plays an important role in lipid and glucose metabolism, and in addition, it regulates multiple drug transporters involved in statin disposition. We examined whether a functional single nucleotide polymorphism (SNP) in FXR (-1G>T) influenced the lipid-lowering effect of rosuvastatin. In 385 Chinese patients with hyperlipidemia who had been treated with rosuvastatin 10 mg daily for at least 4 weeks, the association between the FXR -1G>T SNP and lipid response to rosuvastatin was analyzed. The FXR -1G>T SNP was not associated with baseline lipids but was significantly associated with the LDL cholesterol (LDL-C) and total cholesterol response to rosuvastatin. Carriers of the T-variant allele (GT+TT = 68+3) had 4.4% (95% CI: 1.2, 7.5%, P = 0.006) and 2.6% (95% CI: 0.3, 5.0%; P < 0.05) greater reductions in LDL-C and total cholesterol, respectively, compared with those with homozygous wildtype alleles. The association between the FXR polymorphism and the LDL-C response to rosuvastatin remained significant after adjusting for other covariants.(Jlr) This association of the variant allele of the FXR -1G>T polymorphism with a greater LDL-C response to rosuvastatin may suggest that this polymorphism influences the expression of the hepatic efflux transporters involved in biliary excretion of rosuvastatin.-Hu, M., S. S. H. Lui, L-S. Tam, E. K. Li, and B. Tomlinson. The farnesoid X receptor -1G>T polymorphism influences the lipid response to rosuvastatin. J. Lipid Res. 2012. 53: 1384-1389.
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