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Response to micronized fenofibrate treatment is associated with the peroxisome-proliferator-activated receptors alpha G/C intron7 polymorphism in subjects with type 2 diabetes

Foucher, C; Rattier, S; Flavell, DM; Talmud, PJ; Humphries, SE; Kastelein, JJP; ... DAIS investigators,; + view all (2004) Response to micronized fenofibrate treatment is associated with the peroxisome-proliferator-activated receptors alpha G/C intron7 polymorphism in subjects with type 2 diabetes. PHARMACOGENETICS , 14 (12) 823 - 829.

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Abstract

Objective The association between polymorphisms in candidate genes related to lipoprotein metabolism and the reduction in plasma triglyceride (TG) in response to fenofibrate treatment was evaluated in subjects with type 2 diabetes treated with micronized fenofibrate (200 mg/day) for at least 3 years in the Diabetes Atherosclerosis Intervention Study.Methods The cholesteryl ester transfer protein Taq1B, LPL S447X, hepatic lipase -514 C-->T, peroxisome-proliferator-activated receptors alpha (PPARA) L162V and G/C intron 7 polymorphisms and the apolipoprotein E2/E3/E4 alleles were genotyped using PCR and restriction enzyme digestion. Subjects were divided into high TG-responders (with >30% TG relative reduction after treatment) and low TG-responders.Results The frequency of the PPARA intron 7 G/G genotype was higher in high TG-responders than in low TG-responders (85% vs. 69%, P<0.05). There was no significant difference between the percentage of high TG-responders and low TG-responders for any of the other genetic polymorphisms examined. In stepwise logistic regression, baseline TG and only the PPARA intron 7 polymorphism among the others were selected in the model as significant predictors of TG-response (odds ratio: 3.10, 95% CI: 1.28-7.52, P=0.012 for PPARA polymorphism). With age, gender, body mass index, smoking status and HbA1c as additional factors, baseline TG (P<0.0001), intron 7 (P=0.013), body mass index (P=0.040) and LPL-S447X (P=0.084) were significant predictors of TG-response.Conclusion These results indicate that elevated baseline TG levels and PPARA gene intron 7 G/G genotype were associated with TG reduction >30% after fenofibrate treatment in patients with type 2 diabetes. (C) 2004 Lippincott Williams Wilkins.

Type:Article
Title:Response to micronized fenofibrate treatment is associated with the peroxisome-proliferator-activated receptors alpha G/C intron7 polymorphism in subjects with type 2 diabetes
Keywords:fenofibrate, triglycerides response, genetic polymorphisms, PPAR, LPL, LIPC, CETP, apolipoprotein E, type 2 diabetes, DENSITY-LIPOPROTEIN CHOLESTEROL, CORONARY-ARTERY DISEASE, LIPASE GENE-MUTATIONS, APOLIPOPROTEIN-E, PPAR-ALPHA, ATHEROSCLEROSIS INTERVENTION, PROGRESSION-REGRESSION, COMMON VARIANT, PLASMA-LIPIDS, THERAPY
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science

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