Resumo

ASZPIS, S. et al. Different somatic and densitometric responses of cortical and trabecular bone to androgen therapy in hypogonadal men. Rev. argent. endocrinol. metab. [online]. 2007, vol.44, n.4, pp.223-231. ISSN 1851-3034.

A clinical consequence of testosterone deficiency in males is the reduction of bone mineral density (BMD), associated with a higher risk of fracture (and a subsequent increase in morbi-mortality in elderly men) and with changes in body composition and total body calcium content. In order to quantify the effects of androgen therapy on body composition and body calcium content, and to correlate changes in hormone levels with densitometric changes and changes in body composition changes, as well as to determine potential regional densitometric differences, 15 hypogonadal men were included in the present study. Anthropometric, biochemical, densitometric and body composition variables were analyzed under basal conditions, and under replacement therapy. As a result, androgen deficiency was compensated, and estradiol level was twice as high. Induced eugonadism increased both BMD and total body calcium content. Also, replacement treatment reduced the percentage of total body fat, (primarily abdominal fat) and increased total muscle mass, with an increment of the lean mass/fat mass ratio, and no change in BMI. In conclusion, our results strengthen the preponderant role of sexual steroids on body composition, and its effect on bones. Male hypogonadism is a risk factor for osteoporosis and cardiovascular disease.

Palavras-chave : Male Hypogonadism; Body Composition; Bone; Osteoporosis; Androgen Therapy.

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