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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. 2024; 70(4): 63-71


Liver electrical activity upon epinephrine action

P.K. Tsapenko1, T.P. Liashchenko2, S.P. Vesel’sky3

  1. Bogomoletz Institute of Physiology of NAS of Ukraine, Kyiv, Ukraine
  2. Educational and Scientific Center “Institute of Biology and Medicine” Taras Shevchenko National University of Kyiv, Ukraine
  3. Chemical faculty of Taras Shevchenko National University of Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz70.04.063


Abstract

The electrical potential of the liver is an integrative indicator the activity of the cells in this organ. Here we tried to elucidate a link between liver functional state and its electrical activity. For that, electrical potential of the liver, the content of bile acid and blood glucose concentration were measured in control conditions and after intravenous epinephrine administration. Epinephrine at dose 0.2 µg/kg body weight caused short-term increase in blood glucose concentration and a decrease in hydroxylation ratio of bile acids. The administration also resulted in an increase in power spectral density (PSD) of liver electric potential in a frequency range of 1.6-2.5 Hz. In addition, a trend to increasing in PSD at 0.6-1.5 and 2.6-10 Hz ranges and decreasing in conjugation ratio of bile acids were shown. Correlation between liver electrical activity and blood glucose concentration observed in control conditions vanished upon epinephrine administration. In contrast, epinephrine administration potentiated correlation between liver electrical activity and content of bile acids. Thus, we conclude that the liver electrical activity could reflect its secretory processes.

Keywords: liver; electrical activity; power spectral density; bile acids; epinephrine; glucose.

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