Reports

Melatonin Synthesis in the Pineal Gland: Effect of Light Mediated by the Sympathetic Nervous System

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Science  20 Mar 1964:
Vol. 143, Issue 3612, pp. 1328-1329
DOI: 10.1126/science.143.3612.1328

Abstract

Exposure to light reduces the ability of the rat pineal gland to synthesize melatonin and decreases the weight of the gland. When the sympathetic nerves to the pineal gland are cut, light no longer has an effect on melatonin synthesis or pineal weight. The response of the gland does not require that the gonads or the pituitary gland be present.

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