title: Circadian rhythms of in vitro incorporation of 3H-melatonin into organs of the hypothalamic-pituitary-thyroid system in rats.
abstract: Circadian rhythms of the intensity of 3H-melatonin absorption by organs of the hypothalamic-pituitary-thyroid system were studied in young mature male Wistar rats in summer. The hypothalamus, pituitary, and thyroid gland incorporated 3H-melatonin during the day and night hours, but the intensity of its incorporation in the pituitary and thyroid was high during daytime and low at night, while absorption of the hormone by the hypothalamus tended to be higher at night.
authors.affiliation: V. Ya. Danilevskii Institute of Endocrine Diseases, Academy of Medical Sciences of the Ukraine, Kharkov.
authors.forename: L A
authors.initials: LA
authors.lastname: Bondarenko
authors.forename: A R
authors.initials: AR
authors.lastname: Gevorkyan
mesh_terms: D000818:Animals; D002940:Circadian Rhythm / Q000502:physiology*; D007030:Hypothalamo-Hypophyseal System / Q000378:metabolism*; D008297:Male; D008550:Melatonin / Q000378:metabolism*; D051381:Rats; D044094:Receptors, Melatonin / Q000378:metabolism; D013961:Thyroid Gland / Q000378:metabolism*; D014316:Tritium
chemical_list: D044094:Receptors, Melatonin; D014316:Tritium; D008550:Melatonin