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Serum sex hormone-binding globulin and testosterone in relation to cardiovascular disease risk factors in young men: A population-based study

Lookup NU author(s): Dr Dexter CanoyORCiD

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Abstract

Objective: Reduced sex hormone-binding globulin (SHBG) concentration predicts insulin resistance and type 2 diabetes, but its association with cardiovascular disease (CVD) risk is unclear. We examined the association between SHBG and cardiovascular risk factors, independently of total testosterone (TT), in young men. Design: Observational, cross-sectional study. Setting : General community. Participants: The study included 2716 men aged 31 years in the Northern Finland Birth Cohort in 1996 with clinical examination data and fasting blood samples. Outcome variables: Blood pressure (BP), lipids and C-reactive protein (CRP) as biological CVD risk markers. Results: SHBG concentration was significantly and inversely related to systolic and diastolic BP, triglycerides and CRP, but positively to HDL cholesterol after adjusting for insulin, BMI, waist circumference, smoking, education and physical activity (all P<0.05). These linearly graded associations persisted with additional adjustment for TT. SHBG was significantly associated with total cholesterol only with adjustment for covariates and TT (P<0.05). The direction and magnitude of associations between TT and risk factors were variable, but further adjustment for insulin, adiposity and SHBG showed positive associations between TT and BP, total and LDL-cholesterol and triglycerides and an inverse association with CRP (all P<0.05), but its relation with HDL-cholesterol was no longer significant. Conclusions: In this cohort of young adult men, higher SHBG concentration was associated with a more favourable CVD risk profile, independently of TT. SHBG concentration modified the associations of TT with CVD risk factors. © 2014 European Society of Endocrinology.

Publication metadata

Author(s): Canoy D, Barber TM, Pouta A, Hartikainen AL, McCarthy MI, Franks S, Jarvelin MR, Tapanainen JS, Ruokonen A, Huhtaniemi IT, Martikainen H

Publication type: Article

Publication status: Published

Journal: European Journal of Endocrinology

Year: 2014

Volume: 170

Issue: 6

Pages: 863-872

Print publication date: 01/06/2014

Acceptance date: 26/03/2014

ISSN (print): 0804-4643

ISSN (electronic): 1479-683X

Publisher: BioScientifica Ltd

URL: https://doi.org/10.1530/EJE-13-1046

DOI: 10.1530/EJE-13-1046

PubMed id: 24670886

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