Antioxidant processes are affected in juvenile rainbow trout (Oncorhynchus mykiss) exposed to ozone and oxygen-supersaturated water

Ritola, Ossi; Livingstone, David; Peters, L.D.; Lindström-Seppä, Pirjo

doi:10.1016/s0044-8486(01)00823-7

Cited by 96 publications

(51 citation statements)

References 37 publications

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“…Further, the higher CAT activity might be in response to increased oxygen consumption giving a great potential for hydrogen peroxide production. 49 Similar findings have been made 28 on Oreochromis niloticus & Cyprinus carpio exposed to 2, 4-D & azinophosmethyl. However, some authors 33,34 have reported a decrease in CAT activity in the kidney of the fish.…”

Section: Catalase (Cat)supporting

confidence: 71%

Oxidative Stress Response in Liver, Kidney and Gills of Ctenopharyngodon Idellus (Cuvier & Valenciennes) Exposed To Chlorpyrifos

Kaur

2017

MOJBM

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Study on the chronic effects of an organophosphate, chlorpyrifos inducing oxidative stress in freshwater culturable carp, Ctenopharyngodon idellus has been made on exposure to sub-lethal concentration (1.4µg/L and 2.44µg/L) of the pesticide for 15, 30 and 60 days. Antioxidants viz. catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione-s-transferase (GST) and lipid peroxidation (LPO) in the liver, kidney and gills of the fish were analyzed. Studies revealed that the enhanced productions of reactive oxygen species (ROS) lead to oxidative damage to lipids & proteins, and inhibit antioxidant defence system of fish. The activity of LPO has followed an increasing trend and a decline in the activity of CAT, SOD and GSH at both the concentrations throughout the experiment. However, no definite trend in the activity of GST has been observed. Prolonged exposure to chlorpyrifos enhanced ROS formation, finally resulted in oxidative damage to cell and inhibited antioxidant capacities in the fish tissues.

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Section: Catalase (Cat)supporting

confidence: 71%

Oxidative Stress Response in Liver, Kidney and Gills of Ctenopharyngodon Idellus (Cuvier & Valenciennes) Exposed To Chlorpyrifos

Kaur

2017

MOJBM

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“…Unfortunately, the method used for GSH assay did not allow for assessment of GSSG, making it impossible to estimate the total glutathione pool, its redox state and thus the antioxidant status of the fish. However, GSH concentration was shown to increase as a response to mild oxidative conditions (hyperoxia) in gills (Ritola et al, 2002a) and liver (Ritola et al, 2002b) of rainbow trout. In the North Sea eelpout (Zoarces viviparous), GSH levels were shown to increase following stressful exposure to low temperature (Heise et al, 2006).…”

Section: Protein Damagementioning

confidence: 98%

Protein synthesis is lowered while 20S proteasome activity is maintained following acclimation to low temperature in juvenile spotted wolffish(Anarhichas minor Olafsen)

Lamarre

François

Driedzic

et al. 2009

Journal of Experimental Biology

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SUMMARYThe effects of temperature on protein metabolism have been studied mostly with respect to protein synthesis. Temperature generally has a parabolic effect on protein synthesis with a maximum rate being observed at optimal growth temperature. The effect of temperature on protein degradation is poorly understood. The 20S proteasome is mainly responsible for the degradation of short-lived and oxidatively modified proteins and has been recently identified as a potentially good proxy for protein degradation in fish. The aim of this experiment was to examine the relationships between the rate of protein synthesis, activity of the 20S proteasome, oxidative stress markers and antioxidant capacity in white muscle of juvenile spotted wolffish (Anarhichas minor) acclimated at three temperatures (4, 8 and 12°C). The rate of protein synthesis was lower at 4°C than at 8°C while it was intermediate at 12°C. Despite the decrease of protein synthesis at low temperature, the activity of 20S proteasome activity was maintained high in fish acclimated at lower temperature (4°C), reaching levels 130% of that of fish acclimated at 8°C when measured at a common temperature. The oxidative stress markers TBARS and protein-carbonyl content did not change among temperature groups, but reduced glutathione concentration was higher in cold-acclimated fish, suggesting a higher antioxidant capacity in this group. Our data suggest that lower growth rate in cold temperature results from both high 20S proteasome activity and a reduced rate of protein synthesis.

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“…Considerably less is known about how oxidative Fish Physiol Biochem (2012) 38:17-41 21 stress can affect animal health and well-being, but it is clearly a significant underlying factor related to dysfunctional host immune and inflammatory responses that can increase the susceptibility of any farmed livestock to a variety of health disorders (Sordillo and Aitken 2009). This must be definitively taken into account in fish farming (see for example Ritola et al 2002;Kucukbay et al 2006). Counting the number of opercular movements (ventilatory frequency), and estimating their amplitude, provides an index of ventilatory activity.…”

Section: Ventilatory Activitymentioning

confidence: 99%

Behavioural indicators of welfare in farmed fish

Martins¹,

Galhardo²,

Noble³

et al. 2011

Current Views on Fish Welfare

120

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Behaviour represents a reaction to the environment as fish perceive it and is therefore a key element of fish welfare. This review summarises the main findings on how behavioural changes have been used to assess welfare in farmed fish, using both functional and feeling-based approaches. Changes in foraging behaviour, ventilatory activity, aggression, individual and group swimming behaviour, stereotypic and abnormal behaviour have been linked with acute and chronic stressors in aquaculture and can therefore be regarded as likely indicators of poor welfare. On the contrary, measurements of exploratory behaviour, feed anticipatory activity and rewardrelated operant behaviour are beginning to be considered as indicators of positive emotions and welfare in

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Antioxidant processes are affected in juvenile rainbow trout (Oncorhynchus mykiss) exposed to ozone and oxygen-supersaturated water

Cited by 96 publications

References 37 publications

Oxidative Stress Response in Liver, Kidney and Gills of Ctenopharyngodon Idellus (Cuvier & Valenciennes) Exposed To Chlorpyrifos

Oxidative Stress Response in Liver, Kidney and Gills of Ctenopharyngodon Idellus (Cuvier & Valenciennes) Exposed To Chlorpyrifos

Protein synthesis is lowered while 20S proteasome activity is maintained following acclimation to low temperature in juvenile spotted wolffish(Anarhichas minor Olafsen)

Behavioural indicators of welfare in farmed fish

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