title: APOE gene polymorphisms and response to statin therapy.
abstract: Published studies investigating the role of APOE gene on lipid response (total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and triglycerides) to statin treatment have reported inconsistent results. A meta-analysis was conducted to estimate the lipid response to statin treatment among APOE genetic variants (e2 carriers, e3e3 homozygotes and e4 carriers). Twenty-four studies were included in the meta-analyses. The pooled mean reduction (Delta mu) in TC from baseline was significant for all variants (e2 carriers: Delta mu=-27.7% (-32.5 to -22.8%), e3e3: Delta mu=-25.3% (-28.0 to -22.6%) and e4 carriers: Delta mu=-25.1% (-29.3 to -21.0%)). Significant changes in LDL-C, HDL-C and triglyceride levels were also noted for all genotypes, although these changes did not differ significantly among genotypic groups. There was significant heterogeneity among the studies. Given these non-significant effects of APOE genotypes on lipid responses, there is little reason to consider the use of APOE genetic testing for guiding treatment with statins.
authors.affiliation: Department of Biomathematics, University of Thessaly School of Medicine, Larissa, Greece. zintza@med.uth.gr
authors.forename: E
authors.initials: E
authors.lastname: Zintzaras
authors.forename: G D
authors.initials: GD
authors.lastname: Kitsios
authors.forename: F
authors.initials: F
authors.lastname: Triposkiadis
authors.forename: J
authors.initials: J
authors.lastname: Lau
authors.forename: G
authors.initials: G
authors.lastname: Raman
mesh_terms: D001057:Apolipoproteins E / Q000235:genetics*; D008076:Cholesterol, HDL / Q000378:metabolism*; D008078:Cholesterol, LDL / Q000378:metabolism*; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000627:therapeutic use*; D006937:Hypercholesterolemia / Q000188:drug therapy* / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D014280:Triglycerides / Q000378:metabolism*
chemical_list: D001057:Apolipoproteins E; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D014280:Triglycerides