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Three vitamins are involved in regulation of the circadian rhythm
1Department of Nutritional Sciences and Toxicology, University of California, Berkeley 94720-4104, USA.
Nutrition Reviews
|August 30, 2002
Abstract:
Photoreceptors in the eyes of mammals synchronize the innate circadian rhythm to the solar light-dark cycle. They differ from the photoreceptors serving vision in rods and cones of the retina and are located in the ganglion cells of the retina. They consist of melanopsin, a protein homologous to rhodopsin, with retinal as the light-sensitive prosthetic group; and cryptochromes 1 and 2, proteins combined with methenyltetrahydrofolate and flavin adenine dinucleotide, which function as blue light-sensitive photoreceptors.