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Associations between cadmium exposure and circulating levels of sex hormones in postmenopausal women
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2014 (English)In: Environmental Research, ISSN 0013-9351, E-ISSN 1096-0953, Vol. 134, 265-269 p.Article in journal (Refereed) Published
Abstract [en]

Recent epidemiological as well as in vivo and in vitro studies collectively suggest that the metalloestrogen cadmium (Cd) could be a potential risk factor for hormone-related cancers in particularly breast cancer. Assessment of the association between Cd exposure and levels of endogenous sex hormones is of pivotal importance, as increased levels of such have been associated with a higher risk of breast cancer in postmenopausal women. The present study investigated the perceived relationship (multivariable-adjusted linear regression analyses) between Cd exposure [blood Cd (B-Cd) and urinary Cd (U-Cd)], and serum levels of androstenedione, testosterone, estradiol, and sex-hormone binding globulin (SHBG), in 438 postmenopausal Swedish women without hormone replacement therapy (HRT). A significant positive association between B-Cd (median 3.4nmol/L) and serum testosterone levels, as well as a significant inverse association between B-Cd and serum estradiol levels and with the estradiol/testosterone ratio were encountered. However, U-Cd (median 0.69nmol/mmol creatinine) was inversely associated with serum estradiol levels only. Our data may suggest that Cd interferes with the levels of testosterone and estradiol in postmenopausal women, which might have implications for breast cancer risk.

Place, publisher, year, edition, pages
2014. Vol. 134, 265-269 p.
National Category
Environmental Health and Occupational Health
URN: urn:nbn:se:uu:diva-235795DOI: 10.1016/j.envres.2014.08.009PubMedID: 25173093OAI: oai:DiVA.org:uu-235795DiVA: diva2:762141
Available from: 2014-11-10 Created: 2014-11-10 Last updated: 2015-09-22Bibliographically approved

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Halldin, Krister
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