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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2003; 49(1): 46-51

Tsypkun Daily rhythms of concentrations of cortisol andserotonin in children with chronic viral hepatitis

N.R. Kasyanchuk, V.K. Tishenko, A.G.

    Institute of Pediatrics, Obstetrics and Gynecology AMS ofUkraine, Kiev



Abstract

The daily rhythms of cortisol (C) and serotonin (S) concentrations were investigated in saliva of children with chronic viral hepatitis HBV and HCV. The changes in chronostructure of C and S rhythms were revealed to depend on the viral type and an intensity of the liver inflammatory process. The circadian rhythms of C and S were found to be desynchronized which was manifested as quntitative (period) and qualitative (mesor value, amplitude of oscillations, daily acro- and miniphase) changes in the rhythm. The daily rhythm of S in children with an active and inactive HBV, as well as in those with an active HCV had the circadian character with a high mesor and an amplitude of oscillations, as compared to the control group. The transformation of the S rhythm was similar to the inactive HCV. Shifts in daily acrophase of the S rhythm were established for each clinic group. Daily C rhythm was not determined in the active HBV and HCV, either. The circadian C rhythm with daily acrophase was revealed for inactive HBV; the tendency to circadian rhythm of such type was marked for inactive HCV. The mesor of the above-mentioned groups didn’t differ from the control.

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