Cited by 35Hormonal and reproductive studiesSperm and Testicular FunctionProstate Cancer Treatment and Research

Cross-sectional and longitudinal determinants of serum sex hormone binding globulin (SHBG) in a cohort of community-dwelling men

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Gyawali, Prabin, Martin, Sean A., Heilbronn, Leonie K., Vincent, Andrew D., Jenkins, Alicia J., Januszewski, Andrzej S., Taylor, Anne W., Adams, Robert J. T. +2 more·2018·PLOS ONE

Abstract

Despite its widespread clinical use, there is little data available from population-based studies on the determinants of serum sex hormone binding globulin (SHBG). We aimed to examine multifactorial determinants of circulating SHBG levels in community-dwelling men. Study participants comprised randomly selected 35-80 y.o. men (n = 2563) prospectively-followed for 5 years (n = 2038) in the Men Androgen Inflammation Lifestyle Environment and Stress (MAILES) study. After excluding men with illness or medications known to affect SHBG (n = 172), data from 1786 men were available at baseline, and 1476 at follow-up. The relationship between baseline body composition (DXA), serum glucose, insulin, triglycerides, thyroxine (fT4), sex steroids (total testosterone (TT), oestradiol (E2)), and pro-inflammatory cytokines and serum SHBG level at both baseline & follow-up was determined by linear and penalized logistic regression models adjusting for age, lifestyle & demographic, body composition, metabolic, and hormonal factors. Restricted cubic spline analyses was also conducted to capture possible non-linear relationships. At baseline there were positive cross-sectional associations between age (β = 0.409, p<0.001), TT (β = 0.560, p<0.001), fT4 (β = 0.067, p = 0.019) and SHBG, and negative associations between triglycerides (β = -0.112, p<0.001), abdominal fat mass (β = -0.068, p = 0.032) and E2 (β = -0.058, p = 0.050) and SHBG. In longitudinal analysis the positive determinants of SHBG at 4.9 years were age (β = 0.406, p = <0.001), TT (β = 0.461, p = <0.001), and fT4 (β = 0.040, p = 0.034) and negative determinants were triglycerides (β = -0.065, p = 0.027) and abdominal fat mass (β = -0.078, p = 0.032). Taken together these data suggest low SHBG is a marker of abdominal obesity and increased serum triglycerides, conditions which are known to have been associated with low testosterone and low T4.

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  1. [17]Daka B, Jansson PA, Rosen T, Ranullstam L, Lindblad U. Inverse correlation between serum insulin and sex hormone binding globulin in a population survey in the south-west of Sweden. Diabetologia. 2011; 54: S219.

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Authors
Gyawali, P., Martin, S. A., Heilbronn, L. K., Vincent, A. D., Jenkins, A. J., Januszewski, A. S., Taylor, A. W., Adams, R. J. T., O’Loughlin, P. D., & Wittert, G. A.
Affiliations
  • South Australian Health and Medical Research Institute (AU)
  • Freemasons Foundation Centre for Men's Health (AU)
  • The University of Sydney (AU)
  • Queen Elizabeth Hospital (AU)
  • South Australia Pathology (AU)
Corresponding author
  • Gyawali, Prabin
  • Wittert, Gary A.
Venue
PLOS ONE
Published
2018-07-11
Volume
13
Issue
7
Pages
e0200078
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2844435616
Cited by
35
References
70
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 5 · 2021: 8 · 2020: 7 · 2019: 7
FWCI
4.37
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion, cc-by)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
National Health and Medical Research Council (627227)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
Keywords
sex hormone-binding globulin, community-dwelling men, total testosterone, free thyroxine, triglycerides, abdominal fat mass, estradiol, inflammatory cytokines, body composition, serum glucose, insulin, androgen metabolism, inflammation, aging, sex hormones, lifestyle factors, nonlinear dose-response relationship
MeSH terms
Adult, Aged, Aged, 80 and over, Cross-Sectional Studies, Humans, Longitudinal Studies, Male, Middle Aged, Sex Hormone-Binding Globulin, Cohort Studies, Biomarkers, Independent Living

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