Longitudinal changes in serum testosterone and sex hormone-binding globulin in men aged 40-69 years from the UK Biobank.
Testosterone
UK Biobank
longitudinal changes
male ageing
sex hormone-binding globulin
Journal
Clinical endocrinology
ISSN: 1365-2265
Titre abrégé: Clin Endocrinol (Oxf)
Pays: England
ID NLM: 0346653
Informations de publication
Date de publication:
04 2022
04 2022
Historique:
revised:
02
11
2021
received:
25
08
2021
accepted:
19
11
2021
pubmed:
8
12
2021
medline:
21
4
2022
entrez:
7
12
2021
Statut:
ppublish
Résumé
Testosterone and sex hormone-binding globulin (SHBG) concentrations are reported to decline during male ageing, but whether these changes reflect physiological ageing or age-related comorbidities remains uncertain. We examined longitudinal changes in serum testosterone and SHBG concentrations in middle-aged to older men, concordance between baseline and follow-up values and relationships with concomitant changes in lifestyle and medical factors. Population-based longitudinal cohort study. Community-dwelling men aged 40-69 years. Immunoassay serum total testosterone (n = 7812) and SHBG (n = 6491) at baseline (2006-2010) and follow-up (2012-2013). Free testosterone (cFT) was calculated. Bland-Altman analyses and concordance correlation of repeated measurements were conducted. Associations of changes in hormone concentrations with lifestyle and medical factors were explored using Spearman's rank correlation. Over 4.3 years follow-up, there was a negligible mean change (±SE) in serum total testosterone concentration (+0.06 ± 0.03 nmol/L), whereas mean SHBG concentration increased (+3.69 ± 0.12 nmol/L) and cFT decreased (-10.7 ± 0.7 pmol/L). Concordance estimates were 0.67 (95% confidence interval [CI]: 0.66-0.69) for total testosterone, 0.83 (CI = 0.82-0.84) for SHBG and 0.56 (CI = 0.54-0.58) for cFT. Changes in serum total testosterone correlated with changes in SHBG (Spearman's rank ρ = 0.33, CI = 0.30-0.35), and inversely with changes in body mass index (BMI) (ρ = -0.18, CI = -0.20 to -0.16) and waist circumference (ρ = -0.13, CI = -0.15 to -0.11) and in SHBG with changes in BMI (ρ = -0.34, CI = -0.36 to -0.32) and waist circumference (ρ = -0.21, CI = -0.24 to -0.19). In relatively healthy middle-aged to older men, mean serum total testosterone concentration is stable with ageing, while mean SHBG concentration increases. Both total testosterone and SHBG concentrations were highly concordant over time.
Substances chimiques
Sex Hormone-Binding Globulin
0
Testosterone
3XMK78S47O
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
589-598Subventions
Organisme : Medical Research Council
ID : MC_PC_17228
Pays : United Kingdom
Organisme : Medical Research Future Fund Rapid Applied Research Translation Program
Organisme : Lawley Pharmaceuticals
ID : Philantrophic donation to the University of Western Australia
Organisme : Medical Research Council
ID : MC_QA137853
Pays : United Kingdom
Organisme : Government of Western Australia Department of Health
ID : Future Health and Research Innovation Focus Grant
Informations de copyright
© 2021 John Wiley & Sons Ltd.
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