Age‑related changes in antioxidant defenses of the Mediterranean centipede Scolopendra cingulata (Chilopoda)
2023
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© 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature
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The activity of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), glutathione reductase (GR),
and glutathione S-transferase (GST), as well as the concentrations of sulfhydryl (SH) groups and glutathione (GSH) were
analyzed in five age classes of the Mediterranean centipede Scolopendra cingulata as follows: embryo, adolescens, maturus
junior, maturus, and maturus senior. The data obtained showed the presence of SOD, CAT, GSH-Px, GR, GST, and SH
groups in embryos. The transition from embryo to adolescens was accompanied by an increase in the activities of all studied
enzymes, in response to the increased production of ROS due to the increased metabolic activity of the centipede associated with growth and development. Our results show that trends in antioxidant enzyme (AOE) activities were not uniform
among adult age classes, suggesting that maturus junior, maturus, and maturus senior differentially respond and/or have
different susceptibility to ROS. On the other hand, GSH concentration in embryos was undetectable, highest in adolescens
and decreased in the latter part of life. Pearson correlation analysis in embryos showed that the activities of the AOEs were
strongly and positively correlated with each other but negatively correlated with GSH and SH groups. At later age classes,
SOD, CAT, GSH-Px, GR, GSH, and SH groups were no longer significantly correlated with GST. In the discriminant analysis,
the variables that separated the age classes were GR, GST, SH groups, and body length. Body length was directly related to
the age of individuals, clearly indicating that development/aging affects the regulation of antioxidant defense in this species.
Кључне речи:
Age-related changes; Antioxidant defenses; Scolopendra cingulata; ChilopodaИзвор:
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 2023Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200178 (Универзитет у Београду, Биолошки факултет) (RS-MESTD-inst-2020-200178)
DOI: 10.1007/s00360-023-01481-w
ISSN: 0174-1578
PubMed: 36894740