[The TRH test in 60 depressed adolescents]

Thyroid-stimulating hormone (TSH) and triiodothyronine (T3) responses to thyrotropin-releasing hormone (TRH) were compared in sixty depressed adolescents and sixty normal controls. A significant difference was found for baseline and peak values of T3 and TSH levels. There was no correlation between TSH blunting and DSM III categories of depression.