2015
Factors Affecting Antioxidant Response in Fish from a Long-term Mercury-Contaminated Reservoir
SEVCIKOVA, M., H. MODRA, J. BLAHOVA, R. DOBSIKOVA, Jiří KALINA et. al.Základní údaje
Originální název
Factors Affecting Antioxidant Response in Fish from a Long-term Mercury-Contaminated Reservoir
Autoři
SEVCIKOVA, M. (203 Česká republika), H. MODRA (203 Česká republika), J. BLAHOVA (203 Česká republika), R. DOBSIKOVA (203 Česká republika), Jiří KALINA (203 Česká republika, garant, domácí), O. ZITKA (203 Česká republika), R. KIZEK (203 Česká republika) a Z. SVOBODOVA (203 Česká republika)
Vydání
Archives of Environmental Contamination and Toxicology, New York, Springer-Verlag, 2015, 0090-4341
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.039
Kód RIV
RIV/00216224:14110/15:00084936
Organizační jednotka
Lékařská fakulta
UT WoS
000362666700006
Klíčová slova anglicky
TROUT ONCORHYNCHUS-MYKISS; SALMON SALMO-SALAR; OXIDATIVE STRESS; LIZA-AURATA; DIETARY METHYLMERCURY; LIPID-PEROXIDATION; AQUATIC ORGANISMS; BIOACCUMULATION; GLUTATHIONE; EXPOSURE
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 11. 2015 10:14, Soňa Böhmová
Anotace
V originále
The objective of this work was to evaluate antioxidant defence and oxidative damage in organs (liver, gills, kidney, and brain) of five fish species (Aspius aspius, Esox lucius, Sander lucioperca, Abramis brama, Rutilus rutilus) from the long-term mercury-contaminated Skalka Reservoir in the Czech Republic. Special emphasis was placed on a comprehensive assessment of the factors that may affect the antioxidant response to mercury in fish. Antioxidant enzymes (glutathione reductase, glutathione peroxidase, and glutathione-S-transferase) did not significantly respond to mercury contamination. Levels of the analysed enzymes and oxidative damage to lipids were predominantly determined by a separate organ factor or species factor, or by the combination of both (p < 0.001). Levels of total glutathione and the reduced/oxidized glutathione ratio were influenced by mercury contamination in combination with their specific organ distribution (p < 0.001). Our results suggest that species and type of organ alone or in combination are more important factors than chronic exposure to mercury contamination with respect to effects on antioxidant defence in fish under field conditions. Our findings suggest that the main antioxidant defensive mechanism in fish from the studied long-term mercury contaminated site was the inter-tissue distribution of glutathione.