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 andMLXIPL 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.


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Published by connie dello buono
Connie Dello Buono is based in Sunnyvale California. Her first ebook is about women's health, Birthing Ways Healing Ways and her recent one is about cancer prevention, Curated Healing Ways. She had helped women have holistic childbirth as childbirth educator, founded Motherhealth, to serve seniors in the bay area with holistic caregivers and blogs at www.clubalthea.com with more than 10,000 health and finance related posts.
Connie trains her own caregivers, which are the favorites of most bay area seniors who are home bound and alone.
She is active in the rehab and nursing facilities, volunteering on music and movement for seniors.
She is a member of Lion's club and offered scholarships to students in the Philippines.
She is active at churchinsunnyvale.us and has Fridays Bible home study in Sunnyvale using the recovery version of the Bible , free at biblesforamerica.us
She loves dancing and teaching and her courses can be found at
https://teachclub.com/@thriveafter60
She is California Life Insurance licensed providing life insurance for older adults with health issues and helping women retire safely with income for life.
at menloassetca.com , she helps with 401k rollover.
3 Benefit plans
- Mortgage protection using term life insurance to pay for mortgage balance in event of death
- Final Expense plan using Single Issue Whole Life Insurance, with cash back, disability benefit and guaranteed in the presence of health issues
- Fixed Index Annuity retirement plan for safe, accessibility, less fees, less taxes, avoids probate as it goes directly to beneficiaries, rate of return with no downside market participation.
She brings compassion and understanding to the needs of her clients, bringing holistic approach in health and life insurance. Her goal is to free families from worries especially during covid with caregivers and life insurance in the presence of health issues, especially for women.
She can be reached at 408-854-1883 , motherhealth@gmail.com
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