Exposure to light during the night reduces plasma melatonin levels.... [Am J Psychiatry. 1985] - PubMed - NCBI

Am J Psychiatry. 1985 Jun;142(6):725-7.

Exposure to light during the night reduces plasma melatonin levels.

Supersensitivity to light: possible trait ma... [Am J Psychiatry. 1985] - PubMed - NCBI

 Lewy AJ, Nurnberger JI Jr, Wehr TA, Pack D, Becker LE, Powell RL, Newsome DA.

Abstract

Exposure to light during the night reduces plasma melatonin levels. A previous study showed that, in response to light, nighttime plasma melatonin levels fell twice as much in a group of acutely ill manic-depressive patients as in a group of normal subjects. The present study compares 11 euthymic manic-depressive patients not taking medications with 24 age- and sex-matched normal subjects. Melatonin levels in these patients also fell twice as much as the levels of the normal subjects, suggesting that supersensitivity to light may be a trait marker for bipolar affective disorder.

PMID:

4003592

[PubMed - indexed for MEDLINE]

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