Involvement of Bdnf, Ntrk2 and Pi3k in the mechanism of binge eating after psychogenic stressors in ontogenesis
- Authors: Lizunov A.V.1, Lebedev A.A.1, Pyurveev S.S.1, Nadbitova N.D.1, Goltz V.A.1, Sekste E.A.1, Bychkov E.R.1, Lebedev V.A.1, Evdokimova N.R.1, Shabanov P.D.1
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Affiliations:
- Institute of Experimental Medicine
- Issue: Vol 22, No 2 (2024)
- Pages: 179-189
- Section: Original study articles
- URL: https://bakhtiniada.ru/RCF/article/view/263148
- DOI: https://doi.org/10.17816/RCF625676
- ID: 263148
Cite item
Abstract
BACKGROUND: The study of the neurochemical mechanisms of food addiction provides experimental modeling of some of its clinical manifestations.
AIM: This study aimed to examine the effect of binge eating after maternal deprivation or after rearing in social isolation on the expression of Bdnf, Ntrk2, and Pi3k in the hypothalamus of rats.
MATERIALS AND METHODS: Animals aged 2–12 days were weaned from their mother for 10 days at 180 min, and males aged 90–100 days were used in the experiments. Another group of animals was reared in individual cages from day 21 after birth, and males aged 90–100 days were used in the experiments. To induce binge eating, the animals received a high-carbohydrate feed (chocolate spread) for 1 h every day or every third day within 30 days. Fifteen minutes before feeding, the paste was placed 5 cm within visual contact.
RESULTS: In groups with intermittent exposure to high-calorie food (the animals received pasta every third day), polymerase chain reaction analysis revealed the expression of the Bdnf, Ntrk2, and Pi3k in the hypothalamus. The expression level of Bdnf was higher in the maternal deprivation group than in the control group. The expression levels of Ntrk2 and Pi3k in rats taking a high-carbohydrate feed were higher in animals reared in isolation than in those reared in the community.
CONCLUSIONS: The results present new pathways for the synthesis of peptide drugs associated with the PI3K/AKT/mTOR signaling pathway for the correction of food addiction caused by psychogenic stress in ontogenesis.
Keywords
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##article.viewOnOriginalSite##About the authors
Aleksey V. Lizunov
Institute of Experimental Medicine
Author for correspondence.
Email: izya12005@yandex.ru
SPIN-code: 8912-3238
Cand. Sci. (Biology)
Russian Federation, Saint PetersburgAndrey A. Lebedev
Institute of Experimental Medicine
Email: aalebedev-iem@rambler.ru
ORCID iD: 0000-0003-0297-0425
SPIN-code: 4998-5204
Dr. Sci. (Biology), Professor
Russian Federation, Saint PetersburgSarng S. Pyurveev
Institute of Experimental Medicine
Email: dr.purveev@gmail.com
ORCID iD: 0000-0002-4467-2269
SPIN-code: 5915-9767
Russian Federation, Saint Petersburg
Natalia D. Nadbitova
Institute of Experimental Medicine
Email: natali_805@mail.ru
SPIN-code: 4153-1270
Cand. Sci. (Medicine)
Russian Federation, Saint PetersburgVladanka A. Goltz
Institute of Experimental Medicine
Email: digitalisobscura@mail.ru
Russian Federation, Saint Petersburg
Edgar A. Sekste
Institute of Experimental Medicine
Email: sekste_edgar@mail.ru
SPIN-code: 3761-0525
Cand. Sci. (Biology)
Russian Federation, Saint PetersburgEvgenii R. Bychkov
Institute of Experimental Medicine
Email: bychkov@mail.ru
ORCID iD: 0000-0002-8911-6805
SPIN-code: 9408-0799
Dr. Sci. (Medicine)
Russian Federation, Saint PetersburgViktor A. Lebedev
Institute of Experimental Medicine
Email: vitya-lebedev-57@mail.ru
ORCID iD: 0000-0002-1525-8106
SPIN-code: 1878-8392
Cand. Sci. (Biology)
Russian Federation, Saint PetersburgNatalia R. Evdokimova
Institute of Experimental Medicine
Email: evdokimova.nr@mail.ru
Cand. Sci. (Biology)
Russian Federation, Saint PetersburgPetr D. Shabanov
Institute of Experimental Medicine
Email: pdshabanov@mail.ru
ORCID iD: 0000-0003-1464-1127
SPIN-code: 8974-7477
Dr. Sci. (Medicine), Professor
Russian Federation, Saint PetersburgReferences
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