Effects of acute hypoxia and hyperoxia on antioxidant defense system in gills of carps (Cyprinus carpio L.)
2002
Autori:
Marković, MirjanaŽikić, Radoslav V.
Štajn, Andraš Š.
Ognjanović, Branka
Saičić, Zorica
Pavlović, Slađan
Radojičić, Ratko
Ostala autorstva
Jablanović, MiodragTip dokumenta:
Konferencijski prilog (Objavljena verzija)
,
© 2002 by the Academy of Sciences and Arts of SAP Kosovo. Division of Natural Sciences: Society for Biology and Experimental Medicine SAP Kosovo
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
In our experiments conunon carps (Cyprinus carpio L.) were acclimated to an oxygen concentration of 7.3 lmg/L water (100%) - control (C) group. Two ex perimental groups (H1, H2) were exposed to acute hy poxia. One of them was exposed to a progressive reduction of 02 to 4.1 O2 mg/L (55%) for 1 ¼ hour s and another 1.95mg/L (25%) for 2 hours, respectively. The fourth experimental group (HP) was exposed to a progressive increase of oxygen concentration O2 to 10 mg/L (150%) for I5 minutes, respectively. In our exper iment was determinated antioxidant defense· s yste m enzymes activity (superoxide-dismutase (SOD), catalase (CAT) glutathione-peroxidase (GSH-Px) , and glutathione-reductase (GR) and glutathione-S-transferase (GST) ac tivity (Misra, H.P. and Fridovich, I. (19 72), Beutler (1982), Tamure et al. ( I982), Habig et al. (1974), Glatzle et al. (1974).
Our res ult s show that stress caused by acute hypoxia and hyperoxia significantly changes the activities of antioxidant defense system enzymes, superoxide-dismutase (SOD), glutathione-peroxidase (GSH-Px), and glutathione-reductase (GR) in carps gills. Acute pro longed hypoxia (H2) caused a cetrain degree of adaptation in respect to catalase (CAT) and glutathione-S transferase (GST) activity .
Ključne reči:
Hypoxia; Hyperoxia; Carps; Antioxidant defense enzymesFinansiranje / projekti:
- Serbian Ministry of Sciences, Yugoslavia, Grants No. 03E23 and 03E18.
U:
- Jablanović M, editor. Conference of the Serbian Physiological Society; 2001 Dec 20-23; Zlatibor, Serbia. Priština: Academy of Sciences and Arts of SAP Kosovo. Division of Natural Sciences: Society for Biology and Experimental Medicine SAP Kosovo; 2002. p. 71. (Acta Biologiae et Medicinae Experimentalis; Vol. 27; No. 1; Suppl.).