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Liver electrical activity upon epinephrine action
P.K. Tsapenko1, T.P. Liashchenko2, S.P. Vesel’sky3
- Bogomoletz Institute of Physiology of NAS of Ukraine, Kyiv, Ukraine
- Educational and Scientific Center “Institute of Biology and Medicine” Taras Shevchenko National University of Kyiv, Ukraine
- 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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© National Academy of Sciences of Ukraine, Bogomoletz Institute of Physiology, 2014-2025.
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