Younis, J; Cooper, JA; Miller, GJ; Humphries, SE; Talmud, PJ; (2005) Genetic variation in alcohol dehydrogenase 1C and the beneficial effect of alcohol intake on coronary heart disease risk in the Second Northwick Park Heart Study. ATHEROSCLEROSIS , 180 (2) 225 - 232. 10.1016/j.athersclerosis.2004.12.010.
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Alcohol dehydrogenase 1C (ADH1C or ADH3) genotype reportedly modifies the association between alcohol consumption and coronary heart disease (CHD) risk, as well as influencing plasma high-density lipoprotein (HDL) levels [Hines LM, Stampfer MJ, Ma J, et al. Genetic variation in alcohol dehydrogenase and the beneficial effect of moderate alcohol consumption on myocardial infarction. N Engl J Med 2001;344:549-55]. This relationship has been examined in a sample of middle-aged (50-61 years) men (total of 2773 with 220 CHD events), participating in the prospective Second Northwick Park Heart Study (NPHS II). Alcohol consumption was assessed by questionnaire as the number of units consumed in the previous week. Drinkers experienced lower CHD risk than abstainers [hazard ratio (HR) 0.73 (95% confidence intervals (CI) 0.53, 0.99; p = 0.04)] and had significantly higher HDL and apolipoprotein (apo)AI concentrations (both p < 0.0001) and a lower fibrinogen (p = 0.02). Overall, there was no effect of ADHC1 gamma 1 > gamma 2 genotype on plasma levels of HDL, spoAI or fibrinogen or on CHD risk. To consider whether the effect of alcohol consumption on risk was modulated by genotype, the men were divided into abstainers, modest drinkers (1-3 units/week) and those who consumed more than 3 units/week. Significant alcohol: genotype interaction on CHD risk was observed (p = 0.02), with gamma 2 homozygotes, who were modest drinkers, displaying 78% CHD risk reduction compared to gamma 1 homozygotes (HR = 0.22, 95% CI 0.05-0.94). There was, however, no association between genotype and apoAI, HDL or fibrinogen and this was not altered when alcohol intake was considered. These findings confirm that the cardiovascular benefit of modest alcohol consumption. ADH1C genotype modifies the relationship between alcohol consumption and CHD risk but at lower levels than previously reported. (c) 2004 Elsevier Ireland Ltd. All rights reserved.
|Title:||Genetic variation in alcohol dehydrogenase 1C and the beneficial effect of alcohol intake on coronary heart disease risk in the Second Northwick Park Heart Study|
|Keywords:||gene, environment interaction, ADH1C, ADH3, HDL, apoAI, fibrinogen, alcohol, MIDDLE-AGED MEN, HEMOSTATIC FACTORS, CONSUMPTION, DEHYDROGENASE, MORTALITY, LIVER, ACTIVATION, MORBIDITY, ENZYMES, HEALTH|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science|
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