Abstract
To study the prevalence and severity of bone mineral loss and its relationship to sex hormone levels in men on long-term neuroleptic therapy. Sixteen men with schizophrenia who were from 19 to 62 years old and had taken neuroleptic medication for 1 to 30 years had bone mineral density (BMD) of the lumbar spine and proximal femur measured by dual-energy x-ray absorptiometry. Results were compared with those from 16 age-matched control subjects. Serum testosterone, sex hormone-binding globulin, free testosterone index (FTI), prolactin, and pituitary gonadotropins were assayed and compared with age-matched Red Cross blood donor controls (N = 23 to 90 for the various assays). At the lumbar spine and at two of the three sites in the proximal femur (trochanter and Ward's triangle but not femoral neck), the BMD was lower in patients than in controls. A statistically significant increase in prolactin and sex hormone-binding globulin and a significantly decreased luteinizing hormone and FTI were found in the treated versus the control group. In the patient group, a significant inverse relationship existed between age and BMD at all sites. Lumbar spine density was related directly to FTI (r = 0.607; P=0.05) and inversely to duration of t...Continue Reading
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