Abstract
The purpose of the work was to study the role of melatonin in the development of age-related pathology and morbidity in male rats under model conditions of accelerated aging caused by impaired photoperiodism. Circadian-rhythm disruption upon exposure to light at night initiates the development of age-related changes in the body and contributes to the formation of age-associated diseases. The article presents the results of an experimental study showing that the use of melatonin in laboratory animals in various light regimes (standard lighting, natural lighting in northwest Russia, and constant lighting) significantly reduces the number of cases of intravital morbidity (rhinitis, conjunctivitis, pneumonia, otitis media, etc.) and postmortem-detected, age-related pathology (tumors, chronic diseases of the respiratory and cardiovascular systems, etc.). Apparently, the immunomodulatory and antioxidant properties of melatonin and its participation in the maintenance of energy homeostasis of the body allows this hormone to perform a universal protective mission in the body—to interfere with pathological processes of any origin.
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ACKNOWLEDGMENTS
The authors express their deep gratitude to M.A. Zabezhinsky, Doctor of Medical Sciences, for scientific advice and discussions.
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Statement on animal welfare. The keeping of animals corresponded to the rules of laboratory practice as regulated by the Order of the Ministry of Health of the Russian Federation of April 1, 2016, no. 199n, “On the Approval of the Rules of Good Laboratory Practice.” In the experiments, measures were taken to avoid unnecessary physical suffering or injury to the animals. The work was carried out in compliance with the principles of the on the humane treatment of animals and the principles of humanity as set forth in the Directive of the European Parliament and of the Council of the European Union (2010/63/EU), and GLP regulations (GOST (State Standard ) 33044-2014).
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Vinogradova, I.A., Matveeva, Y.P., Zhukova, O.V. et al. Melatonin Prevents the Development of Age-Related Pathology in Male Rats during Accelerated Aging Caused by Impaired Photoperiodism. Adv Gerontol 11, 77–82 (2021). https://doi.org/10.1134/S2079057021010483
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DOI: https://doi.org/10.1134/S2079057021010483