Growth Hormone Response to Dextroamphetamine in Depressed Patients and Normal Subjects

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Abstract
• The human growth hormone (HGH) response to dextroamphetamine sulfate (doses, 0.1 and 0.15 mg/kg) was determined in both the morning and evening in patients with endogenous and atypical depression and in normal young men and normal postmenopausal women. Although the HGH response was found to be reduced in endogenously depressed postmenopausal women, it was equally reduced in normal postmenopausal women and in patients with atypical depression. Depressed and normal men had larger HGH responses, but there were no differences between depressed and normal men. These results do not confirm an earlier report that the reduced HGH response to dextroamphetamine is specific to endogenous depression. The results do suggest the importance to control for other variables in studies of HGH responses in psychiatric patients.