Abstract
In the present placebo-controlled, double-blind study, we assessed the effect of dehydroepiandrosterone (DHEA) supplementation (90 mg orally/d) on bone turnover in 43 healthy men, 56-80 yr old. Placebo or steroid was given for 6 months, followed by a 1-month washout period and then a further 6 months of the opposite agent. Serum samples were collected at baseline 3, 6, 7, and 13 months and assayed for procollagen peptide, bone-specific alkaline phosphatase, and osteocalcin, all markers of bone formation. Measurements were also made of serum cortisol, DHEA/DHEA-S, E2 and free and total T. First void, fasting urine was collected at baseline, 6, 7, and 13 months and assessed for deoxypyridinoline, a marker of bone resorption. Mean serum DHEA and DHEA-S levels in treated men were increased approximately 3-fold ( approximately 2.2 ng/ml to approximately 6 ng/ml) and 4.5-fold ( approximately 1000 ng/ml to approximately 4500 ng/ml), respectively, after 6 months and returned to baseline after washout. Similarly, circulating E2 concentrations were also increased 1.4-fold (from approximately 16-23 pg/ml; P < 0.001), a finding not observed with any other measured hormone. Bone marker levels remained remarkably constant at each sampling in...Continue Reading
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