Thyroid function in seasonal affective disorder
Journal of Affective Disorders(1995)
摘要
Morning serum levels of triiodothyronine (T3), free thyroxine (F-T4) and thyroid-stimulating hormone (TSH) were measured in Winter-Seasonal Affective Disorder patients in nondepressed state in summer and before and after light treatment in winter. Practically all patients had hormone levels well within the reference ranges. T3 and F-T4, but not TSH, were significantly higher in winter than in summer; this is considered a normal phenomenon. There was no significant correlation between hormone levels and severity of winter depression. Light treatment did not alter serum hormone levels.
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关键词
Seasonal affective disorder,Winter depression,Thyroid hormone
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