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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. 2014; 60(5): 52-61


Effects of N-stearoylethanolamine on the emotionality and learning ability of rats

Bondarenko OV1, Hula NM2, Makarchuk MIu1, Horid'ko TM2, Kovalenko OA1

  1. Taras Shevchenko National University of Kyiv, Educationaland Scientific Centre, Ukraine
  2. Palladin Institute of Biochemistry of the National Academyof Sciences of Ukraine , Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz60.05.052

Abstract

After administration of endocannabinoid-like compound Nstearoylethanolamine (NSE) at a dose of 0,1 and 5 mg/kg the anxiety level of rats in the elevated plus maze and learning ability of rats in the radial maze were investigated. It was revealed that NSE can change both innate and acquired behavior of rats. It was found that the administration of NSE decreased of anxious behavior in general, although number and duration of grooming were not affected. Administration of NSE at a dose of 5 mg/kg decreases of anxious behavior in rats but also decreases locomotor activity. Higher anxiolytic effect of the substance in the elevated plus maze and growth of learning ability in the radial maze were shown during 7 days’ introduction of NSE at a dose of 0,1 mg/kg that administration of this substance at a dose of 5 mg/kg. Administration of NSE at a dose of 0.1 mg/kg significantly reduced the total number of errors in the radial maze compared to the control at the first day of conditioning with food reinforcement. The latent period of 3rd reinforcement’s taking in animals in this group was lower on the 1st, 5th (P <0.05) and 6th (P <0.01) days. Nevertheless, it was found no significant differences in the behavior in rats treated with NSE in both doses throughout the study period. Therefore, NSE changes the behavior of rats and contributes to the improvement of cognitive function without negative effects specific to cannabinoid drugs.

Keywords: N-stearoylethanolamine, elevated plus maze,radial maze, anxiety, memory.

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