Changes in the content of luteinizing and follicle-stimulating hormones in the gonads of Danio rerio fish under the action of a synthetic analogue of kisspeptin 1
- Authors: Nuzhnova A.A.1, Kostina M.I.2, Blazhenko A.A.1,3
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Affiliations:
- The Research Institute of Obstetrics, Gynecology and Reproductology named after D.O. Ott
- Peter the Great Saint Petersburg Polytechnic University
- Institute of Experimental Medicine
- Issue: Vol 24, No 3 (2024)
- Pages: 118-125
- Section: Original research
- Published: 24.12.2024
- URL: https://journals.eco-vector.com/MAJ/article/view/630366
- DOI: https://doi.org/10.17816/MAJ630366
- ID: 630366
Cite item
Abstract
BACKGROUND: Kisspeptin 1 plays a significant role in regulating the activity of the hypothalamic-pituitary-gonadal axis. It is known it interacts directly with gonadotropin-releasing hormone by stimulating its secretion in the hypothalamus and thus affecting downstream sex hormones via gonadotropins, but the exact mechanism of kisspeptin 1 effects on follicle-stimulating and luteinizing hormones is poorly understood.
AIM: To investigate the effects of a synthetic kisspeptin 1 analog on follicle-stimulating and luteinizing hormone levels in the gonads of Danio rerio.
MATERIALS AND METHODS: The study involved 84 sexually mature Danio rerio females after spawning. The model animals were anesthetized with lidocaine and synthetic analog of kisspeptin 1, 0.9% sodium chloride solution were administered intracerebrally in doses of 2, 8 µg/kg. After 1 or 4 hours, follicle-stimulating and luteinizing hormone’s levels were measured using enzyme immunoassay.
RESULTS: A statistically significant increase in follicle-stimulating hormone levels occurs at a dose of 8 µg/kg after 1 and 4 hours and at a dose of 2 µg/kg 4 hours after injection relative to the corresponding control groups. An increase in luteinizing hormone’s production was also recorded at a dose of 8 μg/kg after 1 and 4 hours of exposure compared with the control. Elevated follicle-stimulating and luteinizing hormone’s levels were also recorded at a dose of 8 μg/mg and exposure for 1 hour relative to a dose of 2 μg/kg at the same resting time. Without taking into account the time exposure, the administration of synthetic analog of kisspeptin 1 at a dose of 8 µg/kg leads to an increased level of both hormones, and a dose of 2 µg/kg contributes to an increase in luteinizing hormone’s level.
CONCLUSIONS: The obtained results contribute to the study of pharmacological functions of synthetic analog of kisspeptin 1 and in the future can be used for therapeutic purposes in the treatment of diseases of the gonadal system.
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About the authors
Alina A. Nuzhnova
The Research Institute of Obstetrics, Gynecology and Reproductology named after D.O. Ott
Email: lin.panaiotis@yandex.ru
ORCID iD: 0009-0002-1607-1471
Junior Research Associate
Russian Federation, Saint PetersburgMarina I. Kostina
Peter the Great Saint Petersburg Polytechnic University
Email: koctena@list.ru
ORCID iD: 0009-0005-1060-5489
student
Russian Federation, Saint PetersburgAleksandra A. Blazhenko
The Research Institute of Obstetrics, Gynecology and Reproductology named after D.O. Ott; Institute of Experimental Medicine
Author for correspondence.
Email: alexandrablazhenko@jmail.com
ORCID iD: 0000-0002-8079-0991
SPIN-code: 8762-3604
Research Associate, Junior Research Associate at the S.V. Anichkov Department of Neuropharmacology
Russian Federation, Saint Petersburg; Saint PetersburgReferences
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