Cited by 100Hormonal and reproductive studiesSperm and Testicular FunctionSexual Differentiation and Disorders

Evidence for geographical and racial variation in serum sex steroid levels in older men

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Orwoll, Eric S., Nielson, Carrie M., Labrie, Fernand, Barrett-Connor, Elizabeth, Cauley, Jane A., Cummings, Steven R., Ensrud, Kristine, Karlsson, Magnus +12 more·2010·The Journal of Clinical Endocrinology & Metabolism

Abstract

BACKGROUND: Despite considerable racial and geographical differences in human phenotypes and in the incidence of diseases that may be associated with sex steroid action, there are few data concerning variation in sex steroid levels among populations. We designed an international study to determine the degree to which geography and race influence sex steroid levels in older men. METHODS: Using mass spectrometry, concentrations of serum androgens, estrogens, and sex steroid precursors/metabolites were measured in 5003 older men from five countries. SHBG levels were assessed using radioimmunoassay. RESULTS: There was substantial geographical variation in the levels of sex steroids, precursors, and metabolites, as well as SHBG. For instance, Asian men in Hong Kong and Japan, but not in the United States, had levels of total testosterone approximately 20% higher than in other groups. Even greater variation was present in levels of estradiol, SHBG, and dihydrotestosterone. Group differences in body mass index did not explain most geographical differences. In addition, body mass index-independent racial differences were present; Black men had higher levels of estrogens (estradiol, estrone), and Asian men had lower levels of glucuronidated androgen metabolites. CONCLUSIONS: On a global scale, there are important geographical and racial differences in the concentrations of serum sex steroids and SHBG in older men.

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Authors
Orwoll, E. S., Nielson, C. M., Labrie, F., Barrett-Connor, E., Cauley, J. A., Cummings, S. R., Ensrud, K., Karlsson, M., Lau, E., Leung, P. C., Lunggren, O., Mellström, D., Patrick, A. L., Stefanick, M. L., Nakamura, K., Yoshimura, N., Zmuda, J., Vandenput, L., Ohlsson, C., & for the Osteoporotic Fractures in Men (MrOS) Research Group
Affiliations
  • Oregon Health & Science University (US)
  • Centre hospitalier de l'Université Laval (CA)
  • University of California San Diego (US)
  • University of Pittsburgh (US)
  • San Francisco Coordinating Center (S.R.C.), San Francisco, California 94107;
  • University of Minnesota (US)
  • Lund University (SE)
  • Chinese University of Hong Kong (HK)
  • University of Uppsala (O.L.), 753 12 Uppsala, Sweden;
  • University of Gothenburg (D.M., L.V., C.O.), 411 24 Göteborg, Sweden;
  • Stanford University (US)
  • The University of Tokyo (JP)
  • University of Gothenburg (SE)
Corresponding author
Orwoll, Eric S.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2010-10-01
Volume
95
Issue
10
Pages
E151-E160
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2155000335
Cited by
100
References
46
Citations by year
2026: 1 · 2025: 3 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 7 · 2019: 3 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 11 · 2014: 9 · 2013: 15 · 2012: 11
FWCI
9.68
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • D-Scholarship@Pitt (University of Pittsburgh) (acceptedVersion)
  • Lund University Publications (Lund University) (submittedVersion, other-oa)
Funders
  • National Institute on Aging (U01-AG-18197, U01AG018197, U01AG027810, U01AG042140)
  • National Cancer Institute (R25CA057703, R25CA57703, R01CA084950, R01 CA84950)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (U01AR45614, U01-AR45632, U01 AR45647, U01AR045583, U01 AR-45583, U01-AR-45654, U01AR045580, R01AR049747, U01AR045632, U01AR045654, U01AR045614, U01AR045647, U01AR066160, U01AR45580)
  • National Center for Research Resources (UL1RR024140)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
Keywords
sex steroids, serum testosterone, estradiol, sex hormone-binding globulin, dihydrotestosterone, androgen metabolites, racial differences, regional variation, older men, Asian men, Black men, body mass index
MeSH terms
Aged, Aged, 80 and over, Aging, Blood Chemical Analysis, Geography, Hong Kong, Humans, Japan, Male, Models, Biological, Sex Hormone-Binding Globulin, Gonadal Steroid Hormones, Mass Spectrometry, Trinidad and Tobago, United States, Cohort Studies, Racial Groups

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