Work

Genome-wide association meta-analysis of fish and EPA+DHA consumption in 17 US and European cohorts

Year: 2017
Type: review
Study design: Observational Study
Abstract: BACKGROUND: Regular fish and omega-3 consumption may have several health benefits and are recommended by major dietary guidelines. Yet, their intakes remain remarkably variable both within and across populations, which could partly owe to genetic influences. OBJECTIVE: To identify common genetic variants that influence fish and dietary eicosapentaenoic acid plus docosahexaenoic acid (EPA+DHA) consumption. DESIGN: We conducted genome-wide association (GWA) meta-analysis of fish (n = 86,467) and EPA+DHA (n = 62,265) consumption in 17 cohorts of European descent from the CHARGE (Cohorts for Heart and Aging Research in Genomic Epidemiology) Consortium Nutrition Working Group. Results from cohort-specific GWA analyses (additive model) for fish and EPA+DHA consumption were adjusted for age, sex, energy intake, and population stratification, and meta-analyzed separately using fixed-effect meta-analysis with inverse variance weights (METAL software). Additionally, heritability was estimated in 2 cohorts. RESULTS: Heritability estimates for fish and EPA+DHA consumption ranged from 0.13-0.24 and 0.12-0.22, respectively. A significant GWA for fish intake was observed for rs9502823 on chromosome 6: each copy of the minor allele (FreqA = 0.015) was associated with 0.029 servings/day (~1 serving/month) lower fish consumption (P = 1.96x10-8). No significant association was observed for EPA+DHA, although rs7206790 in the obesity-associated FTO gene was among top hits (P = 8.18x10-7). Post-hoc calculations demonstrated 95% statistical power to detect a genetic variant associated with effect size of 0.05% for fish and 0.08% for EPA+DHA. CONCLUSIONS: These novel findings suggest that non-genetic personal and environmental factors are principal determinants of the remarkable variation in fish consumption, representing modifiable targets for increasing intakes among all individuals. Genes underlying the signal at rs72838923 and mechanisms for the association warrant further investigation.
Source: PLoS ONE
Language: English
Subfield: Genetics
Open Access status: gold
Estimated APC paid: $2,382
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the BPC3, G7477626106, G7522350138, G7560939899, G7693351332, G7697152668, G77250574, Eye and Vision Genomics Training Program, G786153652, ReliabilitY of opto-Transceivers for Health Monitoring Systems, Women's Health Study: Continued Follow-up, Cancer Epidemiology Cohort in Male Health Professionals, G793702358, G7958292912, G7962241407, G7970570881, G80149192, G814381192, G816910144, G8260701975, G8267674335, G8276458029, G8376726714, G8443806426, GENCAC - CENTRAL BIOCHEMISTRY LABORATORY, G8505307412, G8506930532, GENOMIC SCAN FOR ATHEROSCLEROSIS PATHWAY GENES IN AFRICAN-AMERICANS FROM FHS-SCAN, G858805679, G861947890, G8631571027, G870807107, G8716920314, HISPANIC SECONDARY STROKE PREVENTION INITIATIVE, G878552033, G890705022, G8927421343, G8930697277, G9000015747, G9000025954, G9000028264, G9000043482, G9000058182, G9000065698, G9000069684, G9000080822, G9000099730, G9000122174, G9000126117, G9000134904, G9000152345, G9000157792, G9000216949, G9000286278, G9000294209, G9000313681, Diabetes Research Center (DRC), From GWAS loci to blood pressure genes, variants & mechanisms - Renewal, UCLA Clinical and Translational Science Institute, G901343485, G905887895, G931818222, G945304896, G991334795, G992154238
OpenAlex ID: W2772375799
FWCI: 0.44
Cites: 17
Cited by: 22
Related to: 10