The -219G/T (rs405509) and +113G/C (rs440446) polymorphisms within the regulatory region of the apolipoprotein E (APOE) gene have been related to the transcriptional activity of the gene. We examined the effect of the stated polymorphisms and their construct haplotypes with the APOE ε2/ε3/ ε4 polymorphism on lipid levels and insulin resistance in the Turkish Adult Risk Factor Study. Randomly selected 1774 adults (mean age, 55.0 ± 11.7 years; 51.2% women) participating in the population-based Turkish Adult Risk Factor Study were cross-sectionally analyzed for the -219G/T, +113G/C, and ε2/ε3/ε4 polymorphisms as well as their haplotypes. Insulin resistance was defined as the 70th percentile in the sample (>2.51) of the homeostatic model assessment (HOMA). The frequencies of the -219T and +113C alleles were 0.477 and 0.423, respectively; and those of haplotype 1 (GGε3) and haplotype 2 (TCε3) were 44.1% and 41.9%, respectively. The -219G/T and +113G/C genotypes (both P < .04) and diplotypes of haplotype 2 (TCε3) (P
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Komurcu-Bayrak, E., Onat, A., Yuzbasiogullari, B., Mononen, N., Laaksonen, R., Kähönen, M., … Erginel-Unaltuna, N. (2011). The APOE -219G/T and +113G/C polymorphisms affect insulin resistance among Turks. Metabolism: Clinical and Experimental, 60(5), 655–663. https://doi.org/10.1016/j.metabol.2010.06.016
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