Open AccessTime organization of physiological functions in mammals. Cerebral structures involvement
Author(s) -
R. Yе. Bulyk,
I. V. Herush,
V. P. Pishak,
Yu. Ye. Rohovyi
Publication year - 2014
Publication title -
bukovinsʹkij medičnij vìsnik
Language(s) - English
Resource type - Journals
eISSN - 2413-0737
pISSN - 1684-7903
DOI - 10.24061/2413-0737.xviii.1.69.2014.45
Subject(s) - pineal gland , circadian rhythm , suprachiasmatic nucleus , photoperiodism , pinealocyte , melatonin , light effects on circadian rhythm , biology , neuroscience , period (music) , rhythm , hippocampus , medicine , endocrinology , microbiology and biotechnology , physics , acoustics , horticulture
The results of five year research concerning the mechanism providing circadian rhythms of physiological functions of organs, in particular the kidneys, are presented in the paper. It was proved by light optical, electron microscopy, biochemical and immunohistochemical methods that structures of the organs under the study as well as their functions are strongly subordinate to the duration of the photoperiod. Depression of the pineal body activity (24 hour lighting) causes desynchronization in the structure of suprachiasmatic nucleus (SCN) neurons and in protein c-Fos synthesis. Disturbanceof the diurnal rhythm of the SCN pacemaker and of melatonin synthesis is conditioned by the change in the rhythm of epiphysis secretory cells. Besides the SCN and the pineal gland, the hippocampus neurons are involved in the photoperiod disintegration.