Email this article Morphological peculiarities of regeneration phases and dynamics of growth factor levels at using 2-ethyl-6-methyl-3-hydroxypyridinium n-acetyl-6-aminohexanoate for rat skin burns repairation
- Authors: Petrovskaya M.A.1, Petrova M.B.1, Andrianova E.V.1, Egorova E.N.1
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Affiliations:
- Tver State Medical University
- Issue: Vol 23, No 3 (2023)
- Pages: 21-29
- Section: Original research
- URL: https://journal-vniispk.ru/MAJ/article/view/260688
- DOI: https://doi.org/10.17816/MAJ606647
- ID: 260688
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Abstract
BACKGROUND: It was found that new derivatives of acexamic acid — N-acetyl-6-aminohexanoate of silver and 2-ethyl-6-methyl-3-hydroxypyridinium N-acetyl-6-aminohexanoate stimulate regeneration and mineralization of bone tissues in osteoporosis. However, to date, the effect of 2-ethyl-6-methyl-3-hydroxypyridinium N-acetyl-6-aminohexanoate on the features of reparative histogenesis and the relationship of its stages with the levels of growth factors in regenerating tissues during skin restoration after thermal burn has not been studied.
AIM: To estimate the morphology dynamics of skin burn healing and its relationship with the levels of vascular endothelial growth factor and basic fibroblast growth factor growth factors in rat regenerating tissues to characterize the reparative properties of 2-ethyl-6-methyl-3-hydroxypyridinium N-acetyl-6-aminohexanoate.
MATERIALS AND METHODS: 63 nonlinear rats were used to establish thermal burn wound model according to standard methodics. Burn wounds of the experimental group animals were treated with 2% ointment of 2-ethyl-6-methyl-3-hydroxypyridinium N-acetyl-6-aminohexanoate daily, control group 1 — the burns were not treated, control group 2 — ointment base was applied daily. Morphological examinations of regenerating tissues from the burn area were carried out on days 7, 14 and 21 of the experiment after standard sample preparation. The concentrations of growth factors in homogenates of regenerating tissues were determined by Enzyme Immunoassay.
RESULTS: The inflammation phase is characterized by vascular endothelial growth factor active production and release from cells and morphologically accompanied by early neovasculogenesis in granulation tissue and significant differences in its thickness in rats of the experimental group. During the proliferation phase, activation of fibroblast reproduction and differentiation was associated with an increase in basic fibroblast growth factor levels and the maintenance of elevated vascular endothelial growth factor levels in all groups, especially high in experimental group rats. The epithelialization phase was accompanied by a statistically significant decrease in the content of basic fibroblast growth factor and vascular endothelial growth factor in regenerating skin tissues by 1.9 and 1.8 times, respectively, in comparison with the control groups.
CONCLUSIONS: The obtained experimental data indicate 2% ointment with 2-ethyl-6-methyl-3-hydroxypyridinium N-acetyl-6-aminohexanoate has a reparative potential, as evidenced by the accelerated reduction both the area of burn defects and the average time for their healing in the experimental group compared to the control groups.
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##article.viewOnOriginalSite##About the authors
Marina A. Petrovskaya
Tver State Medical University
Email: solm1990@mail.ru
ORCID iD: 0000-0003-1193-1778
SPIN-code: 5512-7253
Postgraduate Student, Assistant of the Department of Biology
Russian Federation, TverMargarita B. Petrova
Tver State Medical University
Email: pmargo-2612@mail.ru
ORCID iD: 0009-0004-7620-5958
SPIN-code: 4310-3839
Dr. Sсi. (Biol.), Professor, Head of the Department of Biology
Russian Federation, TverElena V. Andrianova
Tver State Medical University
Email: andrianovaalenav@mail.ru
ORCID iD: 0009-0000-5825-7317
SPIN-code: 3946-9969
Assistant of the Department of Biochemistry
Russian Federation, TverElena N. Egorova
Tver State Medical University
Author for correspondence.
Email: enegor@mail.ru
ORCID iD: 0000-0002-4323-5286
SPIN-code: 5805-8780
MD, Dr. Sci. (Med.), Assistant Professor, Head of the Department of Biochemistry
Russian Federation, TverReferences
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