Abstract
It is demonstrated that the absence of the natural day/light cycle has no principal effects on the development of the pineal gland during the first two weeks of postnatal ontogeny. Starting from the 21st day, functional activity of the pineal decreases, particularly under conditions of constant illumination. The shift of acrophase testifies to relative structural stability of the investigated rhythm.
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Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 125, No. 6, pp. 692–694, June, 1998
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Bekchanov, A.N., Berlyakova, V.M. & Khuzhakhmetova, L.K. Effects of various of illumination regimens on the structure and circadian rhythms of rat epiphyseal proteins in postnatal ontogeny. Bull Exp Biol Med 125, 616–618 (1998). https://doi.org/10.1007/BF02445256
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DOI: https://doi.org/10.1007/BF02445256