Blood antioxidant system of Black Sea elasmobranch and teleosts

Rudneva, I. I.

doi:10.1016/s0742-8413(97)00111-4

Cited by 52 publications

(42 citation statements)

References 13 publications

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“…It has been established that the activities of antioxidant defence enzyme activities in fish vary in different organs of fresh water and marine fish (Wdzieczak et al, 1982;Lemaire et al, 1993), depending upon feeding behaviour (Radi and Markovics, 1988) and other ecological conditions (Winston and Di Giulio, 1991). Furthermore, it can be assumed that low 14 molecular weight antioxidants (urea, ascorbic acid and α-tocopherol) appeared earlier in the process of evolution than antioxidant defence enzymes, and antioxidant systems in fish depend not only on taxonomic position of the fish species but also on their ecological peculiarities, particularly natural mobility (Rudneva, 1997). These are perhaps other reasons why studies with fish have generally failed to reveal consistent responses in antioxidant defence enzyme activities (Di Giulio et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Increased activities of hepatic antioxidant defence enzymes in juvenile gilthead sea bream (Sparus aurata L.) fed dietary oxidised oil: attenuation by dietary vitamin E

et al. 2002

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Previously, we had shown that altering the highly unsaturated fatty acid(HUFA)/vitamin E ratios in sea bream (Sparus aurata) livers significantly affected their peroxidation status, with fish fed the diet rich in HUFA and low in vitamin E showing significantly higher values of lipid peroxidation products, without, however, significant effects on liver antioxidant defence enzyme activities. The aim of the present trial was to further characterise the biochemical indicators of peroxidative stress in juvenile sea bream. A high pro-oxidative stress was induced by feeding diets containing around 7% of the dry weight as n-3HUFA. The potential peroxidative stress was increased by oxidising the oil, increasing the peroxide value of the oil some 10-fold. These oils were fed without or with supplemental vitamin E (α-tocopherol acetate at 200 mg.kg -1 dry diet) giving four diets in total. Fish were sampled after 30 and 60 days of feeding the experimental diets. None of the diets had any serious deleterious effects on growth and mortality of the fish during the trial. Similarly, there were few significant effects due to dietary oxidised oil or supplementary vitamin E on liver lipid and fatty acid profiles of livers and, in particular, the proportions of HUFA were not decreased by dietary oxidised oil. The vitamin E content of the liver reflected the vitamin E contents of the diets but was also affected by dietary oxidised oil being reduced by oxidised oil in fish fed diets without supplemental vitamin E but, unexpectedly, increased by oxidised oil in fish fed diets supplemented with vitamin E. Liver TBARS levels were significantly lower in fish fed diets supplemented with vitamin E whereas dietary oxidised oil had no major effects on lipid peroxidation products. Catalase and superoxide dismutase activities were both increased in fish fed dietary oxidised oil and reduced by supplementary vitamin E after 30 days feeding.In contrast glutathione peroxidase was less affected by the diets, and the activities of glutathione-S-transferase and glutathione reductase were only reduced by dietary vitamin E after 60 days of feeding. However, all the enzyme activities were significantly affected by the duration of feeding, but the number of interactions between the three factors (time, oil and vitamin E) showed that the relationships were complicated. In conclusion, the present study showed that feeding diets containing oxidized oil significantly affected the activities of liver antioxidant defence enzymes and that dietary vitamin E partially abrogated these effects.Growth and survival of the fish were relatively unaffected suggesting that the responses in sea bream offered effective protection. However, the duration of feeding the diets of high pro-oxidative stress was observed to have a hitherto unknown effect, possibly the result of an adaptive process, but which requires further investigation.

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Section: Discussionmentioning

confidence: 99%

Increased activities of hepatic antioxidant defence enzymes in juvenile gilthead sea bream (Sparus aurata L.) fed dietary oxidised oil: attenuation by dietary vitamin E

et al. 2002

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“…Coastal fish show great variations in antioxidant activities (Cassini et al 1993, Filho et al 1993, Forlin et al 1995, Rudneva 1997, which are influenced by season, feeding habits, salinity and oxygen pressure (Desrochers & Hoffert 1983, Radi et al 1985, Winston & Di Giulio 1991Fitzgerald 1992. Pollutants also act as pro-oxidant chemicals through redox cycling and other processes.…”

Section: P-----'mentioning

confidence: 99%

Xenobiotic metabolising enzymes and antioxidant defences in deep-sea fish:relationship with contaminant body burden

Porte¹,

Escartı́n²,

García³

et al. 2000

Mar. Ecol. Prog. Ser.

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Xenobiotic metabolising enzymes, namely the cytochrome P450 monooxygenase system and glutathione S-transferase, as well as antioxidant enzymes were determined in the liver of 3 deepsea fish species (tepidion lepidion, Bathypterois mediterraneusand Coryphaenoides guenthen). These organisms were collected from 3 stations along the NW Mediterranean, at depths ranging from 1500 to 1800 m. The enzymatlc activities detected in deep-sea fish indicated the ability of these organisms to cope with pollutants and oxidative stress. Differences among the studied species may be related to habitat and diet, viz. the highest monooxygenase and antioxidant enzyme activities were observed in L. lepidion, a typical middle slope species, whereas the lowest activities were recorded for B. mediterraneus, an organism adapted to live at greater depths. Tissue concentration of persistent organochlorinated compounds, like polychlorinated biphenyls, DDTs and hexachlorobenzene, were in the lower range of those reported for coastal fish, and significant differences among sampling stations were not observed. Overall, the obtained results contribute to the knowledge of the NW Mediterranean deepsea basin and reflect the chronic contamination of the area in terms of organochlorinated compounds, rather than the influence of coastal discharges.

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“…1A-D). According to some authors, the difference between antioxidant enzymes activities correlate with the species phylogenetic position where ancestral species exhibit the lower activity of those enzymes (Rudneva 1997). Moreover, sturgeons consume lower levels of oxygen which can also explain lower activity observed for antioxidant enzymes (Rabie et al 1972).…”

Section: Tablementioning

confidence: 99%

Species and sex-specific variation in the antioxidant status of tench, Tinca tinca; wels catfish, Silurus glanis; and sterlet, Acipenser ruthenus (Actinopterygii) reared in cage culture

Panicz

Drozd

et al. 2017

Acta Ichthyol. Piscat.

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Panicz R., Drozd R., Drozd A., Nędzarek A. 2017. Species and sex-specific variation in the antioxidant status of tench, Tinca tinca; wels catfish, Silurus glanis; and sterlet, Acipenser ruthenus (Actinopterygii) reared in cage culture. Acta Ichthyol. Piscat. 47 (3): 213-223.Background. Oxidative stress poses a serious threat to farmed fish, exemplified by depressed growth, decreased disease resistance, and reduced flesh quality. Therefore, the aim of this study was to examine differences in activity of antioxidant enzymes and concentration of selected biochemical parameters between blood plasma of both sexes of three species important for sustainable development of aquaculture: tench, Tinca tinca (Linnaeus, 1758); wels catfish, Silurus glanis Linnaeus, 1758; and sterlet, Acipenser ruthenus Linnaeus, 1758. Materials and methods. Experimental fishes were fed ad libitum for 60 days with a formulated diet (45% proteins, 20% fat, 16% carbohydrates, 8% ash and 2% fibre). At the end of the study venous blood samples were collected and 11 biochemical parameters were assessed: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST), total antioxidant capacity (FRAP), alanine transaminase (ALT), aspartate transaminase (AST), lactate dehydrogenase (LDH), bilirubin, albumin, and uric acid. Results.Comparison between species revealed that the most significant differences were observed for tench and sterlet (in FRAP, GPx, CAT, GST LDH, ALT, bilirubin, and uric acid), less significant-for sterlet and wels (in FRAP, GST, LDH, AST, bilirubin, uric acid), followed by tench and wels catfish (in FRAP, GPx, GST, AST, and uric acid). Moreover, significant variations in the level of biochemical markers were also detected between sexes within each species, where the highest number was observed for tench (in FRAP, GPx, albumin, and uric acid), next wells catfish (in SOD, albumin, and bilirubin), and the lowest in sterlet (in ALA). Additionally, numerous differences in antioxidant potential (FRAP), antioxidant defence indices, as well as in markers of liver function, heart dysfunction, and markers of nutritional status were observed as species-specific and sex-specific. Conclusions. Results obtained in this study for the first time demonstrated species-and sex-related differences in plasma activity of antioxidant enzymes and concentration of selected biochemical parameters between tench, wels catfish, and sterlet reared in cage culture. The presented findings provide significant contribution not only to the existing knowledge of fish physiology but will also help to design optimal feeding practices to achieve sustainable cage aquaculture.

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Blood antioxidant system of Black Sea elasmobranch and teleosts

Cited by 52 publications

References 13 publications

Increased activities of hepatic antioxidant defence enzymes in juvenile gilthead sea bream (Sparus aurata L.) fed dietary oxidised oil: attenuation by dietary vitamin E

Increased activities of hepatic antioxidant defence enzymes in juvenile gilthead sea bream (Sparus aurata L.) fed dietary oxidised oil: attenuation by dietary vitamin E

Xenobiotic metabolising enzymes and antioxidant defences in deep-sea fish:relationship with contaminant body burden

Species and sex-specific variation in the antioxidant status of tench, Tinca tinca; wels catfish, Silurus glanis; and sterlet, Acipenser ruthenus (Actinopterygii) reared in cage culture

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