Artikel ; Online: Assessing physiological responses and oxidative stress effects in Rhamdia voulezi exposed to high temperatures.
Fish physiology and biochemistry
2024 Band 50, Heft 2, Seite(n) 617–633
Abstract: Exposure to high temperatures induces changes in fish respiration, resulting in an increased production of reactive oxygen species. This, in turn, affects the enzymatic and non-enzymatic components of antioxidant defenses, which are essential for ... ...
Abstract | Exposure to high temperatures induces changes in fish respiration, resulting in an increased production of reactive oxygen species. This, in turn, affects the enzymatic and non-enzymatic components of antioxidant defenses, which are essential for mitigating cellular stress. Rhamdia voulezi, an economically important fish species endemic to Brazil's Iguaçu River, served as the subject of our study. Our goal was to assess enzymatic antioxidant biomarkers (superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, glucose-6-phosphate dehydrogenase), non-protein thiol levels (reduced glutathione), and markers of oxidative damage (lipoperoxidation and carbonylation) in the liver, gills, and kidneys of R. voulezi after acute exposure to high temperatures (31°C) for 2, 6, 12, 24, and 96 h. Control groups were maintained at 21°C. Our findings revealed that the liver exhibited increased superoxide dismutase levels up to 12 h and elevated glutathione S-transferase levels at 12 and 96 h at 31°C. In the gills, superoxide dismutase levels increased up to 24 h, along with increased lipoperoxidation at 2, 6, 12, and 96 h of exposure to high temperatures. The kidneys responded to heat stress at 12 h, with an increase in superoxide dismutase and catalase activity, and lipid peroxidation was observed at 2 and 6 h at 31°C. The three tissues evaluated responded differently to heat stress, with the liver demonstrating greater physiological adjustment to high temperatures. The intricate interplay of various antioxidant defense biomarkers and oxidative damage suggests the presence of oxidative stress in R. voulezi when exposed to high temperatures. |
---|---|
Mesh-Begriff(e) | Animals ; Antioxidants/metabolism ; Catalase/metabolism ; Temperature ; Oxidative Stress/physiology ; Glutathione/metabolism ; Catfishes/metabolism ; Superoxide Dismutase/metabolism ; Biomarkers/metabolism ; Glutathione Peroxidase/metabolism ; Glutathione Transferase/metabolism ; Gills/metabolism ; Lipid Peroxidation |
Chemische Substanzen | Antioxidants ; Catalase (EC 1.11.1.6) ; Glutathione (GAN16C9B8O) ; Superoxide Dismutase (EC 1.15.1.1) ; Biomarkers ; Glutathione Peroxidase (EC 1.11.1.9) ; Glutathione Transferase (EC 2.5.1.18) |
Sprache | Englisch |
Erscheinungsdatum | 2024-01-04 |
Erscheinungsland | Netherlands |
Dokumenttyp | Journal Article |
ZDB-ID | 292907-7 |
ISSN | 1573-5168 ; 0920-1742 |
ISSN (online) | 1573-5168 |
ISSN | 0920-1742 |
DOI | 10.1007/s10695-023-01294-2 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
Volltext online
Zusatzmaterialien
Kategorien
Verfügbar in ZB MED Bonn
Z 6206: Hefte anzeigen |
Über subito bestellen
Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.
Fernleihe an ZB MED
Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.