NDLI: Associations between endogenous sex hormone levels and mammographic and bone densities in premenopausal women

Content Provider	Springer Nature Link
Author	Yong, Mellissa Atkinson, Charlotte Newton, Katherine M. Aiello Bowles, Erin J. Stanczyk, Frank Z. Westerlind, Kim C. Holt, Victoria L. Schwartz, Stephen M. Leisenring, Wendy M. Lampe, Johanna W.
Copyright Year	2009
Abstract	Mammographic breast and bone mineral densities (BMD) have been associated with luteal phase hormone concentrations in premenopausal women. We assessed the associations of breast and bone densities with follicular phase hormones and sex hormone binding globulin (SHBG) in premenopausal women, given that follicular phase hormones have been shown to be positively associated with premenopausal breast cancer risk.One hundred and ninety-two 40–45-year-old women provided a spot urine and/or blood sample during the follicular phase. Hormone and SHBG concentrations, and bone density were measured and routine mammograms were accessed and digitized to obtain breast density measures. Regression models were fit to assess the associations between hormones and SHBG, and breast and bone densities.Positive associations were observed between percent breast density and SHBG (p trend = 0.02), as well as estradiol (p trend = 0.08), after controlling for body mass index (BMI), number of pregnancies, and breast feeding history. In addition, a statistically significant inverse association was observed between total testosterone and head BMD (p trend = 0.01), after controlling for BMI.Associations were observed between breast and bone densities, and serum hormone concentrations during the follicular phase of the menstrual cycle.
Starting Page	1039
Ending Page	1053
Page Count	15
File Format	PDF
ISSN	09575243
Journal	Cancer Causes & Control
Volume Number	20
Issue Number	7
e-ISSN	15737225
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-03-12
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Estrogens Androgens Mammographic density Bone mineral density Premenopausal women Hematology Epidemiology Public Health/Gesundheitswesen Oncology Biomedicine general Cancer Research
Content Type	Text
Resource Type	Article
Subject	Cancer Research Oncology

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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