Reproductive and lifestyle factors and circulating sRANKL and OPG concentrations in women: Results from the EPIC cohort

Danja Sarink, Jiaxi Yang, Theron Johnson, Jenny Chang-Claude, Kim Overvad, Anja Olsen, Anne Tjonneland, Agnes Fournier, Marina Kvaskoff, Francesca Romana Mancini, Heiner Boeing, Antonia Trichopoulou, Anna Karakatsani, Elissavet Valanou, Claudia Agnoli, Carlotta Sacerdote, Giovanna Masala, Amalia Mattiello, Rosario Tunino, Carla H van GilsGuri Skeie, Inger T Gram, Elisabete Weiderpass, Leila Lujan-Barroso, Dafina Petrova, Carmen Santiuste, J Ramón Quirós, Aurelio Barricarte, Pilar Amiano, Ruth C Travis, Marc J Gunter, Laure Dossus, Sofia Christakoudi, Rudolf Kaaks, Renée T Fortner

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Except for a documented increase in osteoprotegerin (OPG) concentrations with older age, data on determinants of soluble Receptor Activator of Nuclear Factor κB (sRANKL) and OPG concentrations in women are limited. We evaluated reproductive and lifestyle factors as potential sources of variation in circulating sRANKL and OPG concentrations in pre- and postmenopausal women.

METHODS: This study includes 2,016 controls [ n = 1,552 (76%) postmenopausal, n = 757 (38%) using postmenopausal hormone therapy (PMH)] from a breast cancer case-control study nested in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Serum sRANKL was measured using an ELISA and serum OPG using an electrochemiluminescent assay. Generalized linear models were used to evaluate associations between these analytes and reproductive and lifestyle factors.

RESULTS: Older age at blood collection was associated with lower sRANKL concentrations in postmenopausal women ( P trend ≤ 0.03) and higher OPG concentrations in all women ( P trend ≤ 0.01). Longer duration of oral contraceptive use among premenopausal women and postmenopausal PMH users was associated with higher OPG ( P trend ≤ 0.04). In postmenopausal non-PMH users, sRANKL concentrations were lower with longer duration of oral contraceptive use and current (vs. never) smoking ( P ≤ 0.01). sRANKL concentrations were higher among women with higher BMI ( P trend ≤ 0.01). The evaluated factors accounted for 12% of the variation in sRANKL concentrations and 21% of the variation in OPG concentrations.

CONCLUSIONS: Circulating sRANKL and OPG concentrations are minimally impacted by hormone-related factors in pre- and postmenopausal women.

IMPACT: This study suggests circulating concentrations of sRANKL and OPG are unlikely to be strongly modified by hormone-related reproductive and lifestyle factors.

Original languageEnglish
Pages (from-to)1746-1754
Number of pages9
JournalCancer Epidemiology Biomarkers & Prevention
Volume28
Issue number10
Early online date10 Jul 2019
DOIs
Publication statusPublished - Oct 2019

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