Environmental Pollution and Oxidative Stress in Fish

Stoliar, Оksana; Lushchak, Volodymyr I.

doi:10.5772/38094

Cited by 14 publications

(4 citation statements)

References 142 publications

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“…The activity of GR closely followed that of GPx, as was to be expected (Stoliar and Lushchak 2012). The higher GR activity observed in trout fed diet 2 indicates its active role in pathways of ROS recycling.…”

Section: Discussionsupporting

confidence: 76%

Levels of antioxidant enzyme activities in cultured rainbow trout (Oncorhynchus mykiss) fed with different diet compositions

Vranković

Stanković

Marković

2021

Bulletin of the European Association of Fish Pathologists

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The recent trend for rainbow trout diets to be higher in lipid content may increase the lipid concentration in fish and lipid peroxidation, which could lead to oxidative stress and affect fish health. In the present work, an evaluation of the possible effects of different fish diets on antioxidant enzyme levels was carried out on two aquaculture groups of rainbow trout (Oncorhynchus mykiss). The fish from one group were fed a diet containing 5% more crude lipids, than the diet used for the other group. The objective was to determine the effects of different concentrations of dietary lipid on the antioxidant defense enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), and glutathione-S-transferase (GST) in the liver and muscle of rainbow trout. All enzymes showed an increasing trend in fish fed with a diet containing more lipids. GST was observed to be the most sensitive antioxidant enzyme, followed by SOD and GPx, and finally by CAT and GR. These results provided data indicating the prooxidative effects of higher dietary lipid levels and suggested that dietary lipid plays an important role in determining fish susceptibility to oxidative stress.

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Section: Discussionsupporting

confidence: 76%

Levels of antioxidant enzyme activities in cultured rainbow trout (Oncorhynchus mykiss) fed with different diet compositions

Vranković

Stanković

Marković

2021

Bulletin of the European Association of Fish Pathologists

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“…Oxidative stress, i.e. the imbalance between pro-and anti-oxidants, is characterised by environmental variables in fish in which antioxidant defence systems are ineffective at neutralising reactive oxygen species (ROS) formation, thus affecting cellular function via the oxidation of proteins, nucleic acids and lipids (Jones, 2006;Stoliar, Lushchak, 2012). Additionally, ROS can break down into free radicals that can perpetuate the destructive cycle of lipid peroxidation (LPO) chain reactions in cell membranes of various organ systems (Martínez-Álvarez et al, 2005), which may affect osmoregulation.…”

Section: Introductionmentioning

confidence: 99%

Water pH and hardness alter ATPases and oxidative stress in the gills and kidney of pacu ( Piaractus mesopotamicus )

et al. 2019

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This study aimed to assess the effects of low and high water hardness in interaction with different water pH in pacu (Piaractus mesopotamicus). Pacu juveniles were subjected to low (50 mg CaCO3 L-1 - LWH) or high water hardness (120 mg CaCO3 L-1 - HWH) at water pH of 5.5 (acidic), 7.5 (circumneutral) or 9.0 (alkaline) for 15 days. Gills and kidneys were collected (days 1, 5 and 15). Gill Na+/K+-ATPase (NKA) and vacuolar-type H+-ATPase (V-ATPase) activities were higher in alkaline pH with HWH on day 1. Gill and kidney NKA and V-ATPase activities were higher in acidic pH with LWH on day 15. Gill NKA activity of pacus under alkaline pH with LWH was higher than those exposed to HWH. Reduced antioxidant capacity in the gills and kidney and enhanced thiobarbituric acid reactive substances (TBARS) levels were demonstrated in fish exposed to acidic or alkaline pH, mainly with LWH. HWH increased glutathione-S-transferase (GST) activity and reduced TBARS levels in the gills and kidney. On day 15, GST activity was increased at acidic pH with LWH. In conclusion, circumneutral pH presents less oxidative stress and fewer variations in ATPases and HWH reduced deleterious effects in fish exposed to acidic or alkaline pH.

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“…For example, in several experiments with xenobiotics in fish, it has been observed that certain conditions have given rise to high SOD and low CAT activities, and vice versa. 68,69 Guzmán-Villanueva et al 70 observed an increase in SOD activity with Lutjanus peru fed diets supplemented with 0.1% β-1,3/1,6glucan, whereas no significant changes of CAT activity were observed; something similar to that was observed in the intestine of WS and EJ fish treated with H1. In the same species, Reyes-Becerril et al 43 observed that fish immunized with V. parahaemolyticus toxin ToxA-Vp exhibited higher CAT activity than the control group without direct proportional changes in SOD activity.…”

Section: Discussionmentioning

confidence: 66%

Immune and Antioxidant Enzyme Response of Longfin Yellowtail (Seriola rivoliana) Juveniles to Ultra-diluted Substances Derived from Phosphorus, Silica and Pathogenic Vibrio

Mazón‐Suástegui¹,

Salas‐Leiva²,

Teles³

et al. 2018

Homeopathy

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Background This research aimed to observe the effect of homeopathic treatments prepared from Vibrio parahaemolyticus and V. alginolyticus (H1) and commercial homeopathic medication Phosphoricum acidum and Silicea terra (H2) on the immune and antioxidant response in Seriola rivoliana juveniles under usual culture conditions and challenged with V. parahaemolyticus. Materials and Methods Quantitative polymerase chain reaction analysis was used to study changes in the expression of key genes related to immune response, cytokines (interleukin-1β [IL-1β]), adapter protein for cytokine release (MyD88) and piscidin and spectrophotometric techniques to analyze the activity of antioxidant superoxide dismutase (SOD) and catalase (CAT) enzymes in Seriola rivoliana juveniles at 30 (weaning stage [WS]) and 60 (early juveniles [EJ]) days post-hatching. Results The H1 treatment led to over-expression of the IL-1β and MyD88 genes in fish at WS and EJ with respect to control, contrary to the H2 treatment that led to under-expression of the IL-1β, MyD88 and piscidin genes at the EJ stage. In fish challenged with V. parahaemolyticus, both H1 and H2 led to over-expression of IL-1β and MyD88; H2 caused an over-expression of piscidin. The SOD activity was higher in H1 with respect to H2 and the control group. CAT remained relatively stable with both H1 and H2 treatments. Conclusions The results suggest that the overall effect of H1 was due to the presence of unknown antigens in low concentrations, while the response to H2—specifically during challenge—may have been due to a stimulating effect of nano-structures, prevailing from mother tincture after sequential dilution/succussion, in a pathway similar to that attributed to nano-vaccines.

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Environmental Pollution and Oxidative Stress in Fish

Cited by 14 publications

References 142 publications

Levels of antioxidant enzyme activities in cultured rainbow trout (Oncorhynchus mykiss) fed with different diet compositions

Levels of antioxidant enzyme activities in cultured rainbow trout (Oncorhynchus mykiss) fed with different diet compositions

Water pH and hardness alter ATPases and oxidative stress in the gills and kidney of pacu ( Piaractus mesopotamicus )

Immune and Antioxidant Enzyme Response of Longfin Yellowtail (Seriola rivoliana) Juveniles to Ultra-diluted Substances Derived from Phosphorus, Silica and Pathogenic Vibrio

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