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

Fiziologichnyi Zhurnal

(English title: Physiological Journal)

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. 2026; 72(2): 49-56


THE INFLUENCE OF MULTIPROBIOTIC ON THE METABOLISM OF SEROTONIN IN THE BLOOD SERUM AND DUODENUM OF RATS WITH GLUTAMATE-INDUCED OBESITY

M.M. Kondro1, T.I. Galenova2, O.M. Savchuk2

  1. State Non-Commercial Enterprise “Danylo Halytsky Lviv National Medical University”, Ukraine
  2. Educational and Scientific Center “Institute of Biology and Medicine” of Taras Shevchenko National University of Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz72.02.049


Abstract

Data on serotonin content and its metabolism in serum and duodenum in rats with glutamate-induced obesity (GIO) are limited. The work aimed to investigate the prophylactic effect of periodic course administration of the multiprobiotic “Symbiter acidophilus” concentrated on the content of serotonin and indicators of its metabolism in the blood serum and duodenum in rats with GIO. It was found that the concentration of serotonin and tryptophan in the blood serum of rats with GIO decreased against the background of an increase in monoamine oxidase activity. Under the influence of periodic administration of a multiprobiotic to rats after neonatal administration of monosodium glutamate, the concentration of serotonin in the blood serum increased, although it did not reach the control level. And the concentration of tryptophan in the blood serum in this group of rats was restored to the level of the intact control, which contributed to an increase in the concentration of serotonin. One of the reasons for the increase in the concentration of serotonin in the blood serum in rats against the background of periodic administration of a multiprobiotic after neonatal administration of monosodium glutamate was a decrease in the activity of monoamine oxidase. In rats with GIO, the content of serotonin in the duodenal homogenate increased with a simultaneous decrease in the content of tryptophan and an increase in the activity of monoamine oxidase in comparison with the control group of rats. In rats, after neonatal administration of monosodium glutamate against the background of periodic administration of a multiprobiotic in the duodenal homogenate, the serotonin content decreased, the tryptophan content increased, and the monoamine oxidase activity decreased compared with the group of rats after neonatal administration of monosodium glutamate. In the duodenal homogenate of rats with GIO, tryptophan hydroxylase and indoleamine-2,3-dioxygenase activities decreased, and tryptophan decarboxylase activity did not undergo statistically significant changes. In rats, after neonatal administration of monosodium glutamate against the background of periodic administration of a multiprobiotic in the duodenal homogenate, tryptophan hydroxylase and indoleamine-2,3-dioxygenase activities increased, and tryptophan decarboxylase activity did not change.

Keywords: obesity, monosodium glutamate, serotonin, blood serum, duodenum, multiprobiotic

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