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Alcohol and oestrogen metabolites in postmenopausal women in the Women's Health Initiative Observational Study
Journal article   Open access   Peer reviewed

Alcohol and oestrogen metabolites in postmenopausal women in the Women's Health Initiative Observational Study

Mary C Playdon, Sally B Coburn, Steven C Moore, Louise A Brinton, Nicolas Wentzensen, Garnet Anderson, Robert Wallace, Roni T Falk, Ruth Pfeiffer, Xia Xu, …
British journal of cancer, Vol.118(3), pp.448-457
02/06/2018
DOI: 10.1038/bjc.2017.419
PMCID: PMC5808032
PMID: 29235567
url
https://doi.org/10.1038/bjc.2017.419View
Published (Version of record) Open Access

Abstract

Alcohol consumption is associated with an increased risk of several cancers. Potential mechanisms include altered oestrogen metabolism. Parent oestrogens metabolise into alternate pathways of oestrogen metabolites that may have variable effects on cancer pathogenesis. We examined associations of alcohol consumption with circulating oestrogen/oestrogen metabolites in postmenopausal women in the Women's Health Initiative (WHI)-Observational Study (OS). We conducted a cross-sectional analysis of prediagnosis ovarian/endometrial cancer case-control data within WHI-OS (N=1864). Alcohol consumption was measured by validated food frequency questionnaire. Fasting serum parent oestrogens/oestrogen metabolites were assayed using liquid chromatography tandem mass-spectrometry. Geometric mean analyte concentrations (GM, pmol l ) were calculated by alcohol category using inverse-probability weighted linear regression, adjusting for venepuncture age/year, race, smoking, body mass index, years since menopause, oral contraceptive duration, caffeine intake, and physical activity. There was evidence for a positive association between alcohol consumption and oestrone, oestradiol and 2-hydroxylation oestrogen metabolite concentrations among menopausal hormone therapy (MHT) users. We observed an association between liquor consumption and parent oestrogens among non-MHT users, who consumed larger doses of liquor than MHT users. Among postmenopausal women, the association between alcohol intake and parent oestrogen, but not oestrogen metabolite concentrations, may be influenced by MHT and type of alcohol.
Aged Alcohol Drinking - blood Case-Control Studies Cross-Sectional Studies Endometrial Neoplasms - blood Endometrial Neoplasms - diagnosis Estradiol - blood Estrogen Replacement Therapy Estrogens - blood Estrogens - metabolism Estrone - blood Female Humans Middle Aged Ovarian Neoplasms - blood Ovarian Neoplasms - diagnosis Postmenopause - blood Surveys and Questionnaires

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