Assessment of the impact of physical and chemical factors of the production environment on the morphological state of target organs in an animal experiment
- Authors: Savchenko O.A.1, Ogudov A.S.1, Novikova I.I.1, Chuenko N.F.1,2, Savchenko O.A.3
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Affiliations:
- Novosibirsk Research Institute of Hygiene
- Novosibirsk State Agricultural University
- Omsk State Medical University
- Issue: Vol 12, No 4 (2023)
- Pages: 114-121
- Section: Biological Sciences
- URL: https://journal-vniispk.ru/2309-4370/article/view/260644
- DOI: https://doi.org/10.55355/snv2023124117
- ID: 260644
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Abstract
The study of the morphological state of target organs of outbred (nonlinear) laboratory mice ICR (CD-1), which were under prolonged dynamic influence of physical and chemical factors of the production environment under model conditions, is of wide research interest, as it allows to assess the impact of these factors at the tissue and cellular level and to identify the presence of pathological changes in relation to the group control that was not exposed to the studied factors of the production environment during the 90-day experiment, which has clinical and practical significance. When assessing the 90-day dynamics (from 0 days – 6 months (background) to 30–60–90 days – 7–8–9 months) of the impact of environmental factors on the morphological state of tissues and organs of outbred (nonlinear) laboratory mice ICR (CD-1), generally accepted and unified methods were used. Animals (weighing 45–50 gr., sexually mature age – 6 months) were divided into 3 experimental groups (vibration exposure, noise exposure, chemical exposure) of 30 individuals each (15 females and 15 males) and 1 control group (15 females and 15 males), kept in standard comfortable conditions, and not exposed to the factors of the production environment. The experiment was conducted in accordance with the rules adopted by the European Convention for the Protection of Animals Used for Experimental Scientific Purposes (Strasbourg, 1986), after approval by the Ethical commission of the Novosibirsk Research Institute of Hygiene of Rospotrebnadzor. Statistical processing of the research materials was carried out using standard Statistica 10.0 application programs. The morphological analysis of the target organs of experimental animals revealed the presence of a complex of pathological changes in the 90-day dynamics of the impact of factors of the production environment, compared with the morphological state of the organs in the control group. The results obtained have clinical and practical significance, as they allow us to justify preventive measures aimed at preventing the negative impact of long-term production factors on the labor contingent. Further study of the morphological state of target organs of ICR laboratory mice exposed to prolonged dynamic exposure to physical and chemical factors of the production environment under model conditions will contribute to the establishment of mechanisms for the development of occupational diseases and the development of scientifically based medical and hygienic measures aimed at preserving the health of the labor contingent in the management of labor longevity.
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##article.viewOnOriginalSite##About the authors
Oleg A. Savchenko
Novosibirsk Research Institute of Hygiene
Author for correspondence.
Email: savchenkooa1969@mail.ru
candidate of biological sciences, leading researcher of Toxicological Department with Sanitary-Chemical Laboratory
Russian Federation, NovosibirskAlexander S. Ogudov
Novosibirsk Research Institute of Hygiene
Email: ogudov.tox@yandex.ru
candidate of medical sciences, head of Toxicological Department with Sanitary-Chemical Laboratory
Russian Federation, NovosibirskIrina I. Novikova
Novosibirsk Research Institute of Hygiene
Email: novikova_ii@niig.su
doctor of medical sciences, professor, director
Russian Federation, NovosibirskNatalya F. Chuenko
Novosibirsk Research Institute of Hygiene; Novosibirsk State Agricultural University
Email: natali26.01.1983@yandex.ru
researcher of Toxicological Department with Sanitary-Chemical Laboratory, postgraduate student of Ecology Department
Russian Federation, Novosibirsk; NovosibirskOlga A. Savchenko
Omsk State Medical University
Email: olgasav1978@mail.ru
candidate of medical sciences, associate professor of Hospital Pediatrics with a Course of Additional Professional Education Department;
Russian Federation, OmskReferences
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