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Correlation between sex hormone levels and obesity in the elderly male
Jian Cao1, Tian-meng Chen, Wei-jun Hao
1First Geriatric Cardiology Division, Chinese PLA General Hospital, Beijing, PR China. calvin301@163.com
Objective:
To investigate the levels of sex hormones and androgen receptor (AR) in elderly male patients and to explore a possible correlation with obesity.
Methods:
The cross-sectional study included 314 Elderly males (age ≥ 65 year). Of these subjects, 104 were healthy (age range 65-92 year; mean 71.38 ± 5.154 year), 74 were obese (65-87 year; 71.32 ± 4.74 year), and 111 were overweight (65-85 year; 71.43 ± 5.03 year). The following parameters were measured: total testosterone (TT), free testosterone, dehydroepiandrosterone sulfate, sex hormone-binding globulin (SHBG), estradiol (E2), luteinizing hormone, follicle-stimulating hormone and AR.
Results:
(i) The levels of TT and SHBG in the obesity group were significantly lower than those in non-obese subjects. (ii) Body mass index (BMI) negatively correlated with TT and SHBG. (iii) Multiple regression analysis revealed that TT (β: -0.230; p = 0.045) and SHBG (β: -0.163; p = 0.02) were statistically correlated with BMI.
Conclusion:
Testosterone levels in the obese population were significantly lower than in the non-obese population and there is a significant association between testosterone levels and the extent of obesity.
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