Genome-wide meta-analysis identifies six novel loci associated with habitual coffee consumption
- PMID: 25288136
- PMCID: PMC4388784
- DOI: 10.1038/mp.2014.107
Genome-wide meta-analysis identifies six novel loci associated with habitual coffee consumption
Abstract
Coffee, a major dietary source of caffeine, is among the most widely consumed beverages in the world and has received considerable attention regarding health risks and benefits. We conducted a genome-wide (GW) meta-analysis of predominately regular-type coffee consumption (cups per day) among up to 91,462 coffee consumers of European ancestry with top single-nucleotide polymorphisms (SNPs) followed-up in ~30 062 and 7964 coffee consumers of European and African-American ancestry, respectively. Studies from both stages were combined in a trans-ethnic meta-analysis. Confirmed loci were examined for putative functional and biological relevance. Eight loci, including six novel loci, met GW significance (log10Bayes factor (BF)>5.64) with per-allele effect sizes of 0.03-0.14 cups per day. Six are located in or near genes potentially involved in pharmacokinetics (ABCG2, AHR, POR and CYP1A2) and pharmacodynamics (BDNF and SLC6A4) of caffeine. Two map to GCKR and MLXIPL genes related to metabolic traits but lacking known roles in coffee consumption. Enhancer and promoter histone marks populate the regions of many confirmed loci and several potential regulatory SNPs are highly correlated with the lead SNP of each. SNP alleles near GCKR, MLXIPL, BDNF and CYP1A2 that were associated with higher coffee consumption have previously been associated with smoking initiation, higher adiposity and fasting insulin and glucose but lower blood pressure and favorable lipid, inflammatory and liver enzyme profiles (P<5 × 10(-8)).Our genetic findings among European and African-American adults reinforce the role of caffeine in mediating habitual coffee consumption and may point to molecular mechanisms underlying inter-individual variability in pharmacological and health effects of coffee.
Figures
Comment in
-
Connecting the dots, genome-wide association studies in substance use.Mol Psychiatry. 2016 Jun;21(6):733-5. doi: 10.1038/mp.2016.14. Epub 2016 Mar 15. Mol Psychiatry. 2016. PMID: 26976040 No abstract available.
References
-
- Fredholm BB, Battig K, Holmen J, Nehlig A, Zvartau EE. Actions of caffeine in the brain with special reference to factors that contribute to its widespread use. Pharmacol Rev. 1999;51(1):83–133. - PubMed
-
- Cornelis M. Gene-coffee interactions and health. Curr Nutr Rep. 2014 in press.
-
- Spiller MA. The chemical components of coffee. In: Spiller GA, editor. Caffeine. CRC; Boca Raton: 1998. pp. 97–161.
-
- American Psychiatric Association . Diagnostic and statistical manual of mental disorders. 5 edn. Arlington, VA; American Psychiatric Publishing: 2013.
-
- Cornelis MC. Coffee intake. Progress in molecular biology and translational science. 2012;108:293–322. - PubMed
Publication types
MeSH terms
Substances
Grants and funding
- P50 HL105185/HL/NHLBI NIH HHS/United States
- U01 HG004728/HG/NHGRI NIH HHS/United States
- MC_UP_A100_1003/MRC_/Medical Research Council/United Kingdom
- P60 AA011998/AA/NIAAA NIH HHS/United States
- RG/08/014/24067/BHF_/British Heart Foundation/United Kingdom
- G1000143/MRC_/Medical Research Council/United Kingdom
- MC_U106179471/MRC_/Medical Research Council/United Kingdom
- R01 NS041509/NS/NINDS NIH HHS/United States
- 14136/CRUK_/Cancer Research UK/United Kingdom
- G0401527/MRC_/Medical Research Council/United Kingdom
- MC_UU_12015/5/MRC_/Medical Research Council/United Kingdom
- R01 HL117078/HL/NHLBI NIH HHS/United States
- RG/13/13/30194/BHF_/British Heart Foundation/United Kingdom
- R01 HL120393/HL/NHLBI NIH HHS/United States
- MR/L003120/1/MRC_/Medical Research Council/United Kingdom
- R01 NS075321/NS/NINDS NIH HHS/United States
- MC_UU_12015/1/MRC_/Medical Research Council/United Kingdom
- R01 HL105756/HL/NHLBI NIH HHS/United States
- 090532/WT_/Wellcome Trust/United Kingdom
- R01 EY015473/EY/NEI NIH HHS/United States
- UM1 CA182913/CA/NCI NIH HHS/United States
LinkOut - more resources
Full Text Sources
Other Literature Sources
Miscellaneous
