Genetics of variation in HOMA-IR and cardiovascular risk factors in Mexican-Americans.

Journal of Molecular Medicine : Official Organ of the Gesellschaft Deutscher Naturforscher Und Ärzte
V Saroja VorugantiA G Comuzzie

Abstract

Insulin resistance is a major biochemical defect underlying the pathogenesis of cardiovascular disease (CVD). Mexican-Americans are known to have an unfavorable cardiovascular profile. Thus, the aim of this study was to investigate the genetic effect on variation in HOMA-IR and to evaluate its genetic correlations with other phenotypes related to risk of CVD in Mexican-Americans. The homeostatic model assessment method (HOMA-IR) is one of several approaches that are used to measure insulin resistance and was used here to generate a quantitative phenotype for genetic analysis. For 644 adults who had participated in the San Antonio Family Heart Study (SAFHS), estimates of genetic contribution were computed using a variance components method implemented in SOLAR. Traits that exhibited significant heritabilities were body mass index (BMI) (h (2) = 0.43), waist circumference (h (2) = 0.48), systolic blood pressure (h (2) = 0.30), diastolic blood pressure (h (2) = 0.21), pulse pressure (h (2) = 0.32), triglycerides (h (2) = 0.51), LDL cholesterol (h (2) = 0.31), HDL cholesterol (h (2) = 0.24), C-reactive protein (h (2) = 0.17), and HOMA-IR (h (2) = 0.33). A genome-wide scan for HOMA-IR revealed significant evidence of linkage on chro...Continue Reading

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Jan 20, 2009·Arteriosclerosis, Thrombosis, and Vascular Biology·Frances M K WilliamsUNKNOWN EuroCLOT Investigators
Mar 13, 2012·International Journal of Environmental Research and Public Health·Young-Gyu ChoKang-Sook Lee
Jun 24, 2015·Human Molecular Genetics·Hemant KulkarniMelanie A Carless
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Nov 30, 2016·Journal of Diabetes Research·Hemant KulkarniJohn Blangero
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