Superoxide Anion Radical Generation as a Temperature Stress Response in the Gills of Freshwater Catfish Heteropneustes fossilis: Role in Mucus Exudation Under Elevated Temperature

Prakash, Prem; Kumar, Pratap; Laloraya, Malini; Hemnani, Taruna; Parihar, Mordhwaj S.

doi:10.1016/s0742-8413(97)00209-0

Cited by 9 publications

(9 citation statements)

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“…Since exposure to Ni alone had no effect on lymphoid organ cellularity or on the majority of immune functional parameters, it appears that abrupt temperature change may have been the driving factor in this particular model system. In support of this, other studies have demonstrated that exposure of fish to thermal stress alone can modulate the immune response by: increasing host susceptibility to infectious disease [24,25]; increasing circulating levels of white blood cells [24]; decreasing total haemolytic counts in freshwater prawns [47]; and, increasing O 2 ÿ generation in the gills of H. fossilis [22]. Overall, innate immunity (specifically, oxyradical production) appears to be a sensitive indicator of the effects of rapidly occurring thermal stress both as a lone stressor and in combination with chemical pollutants.…”

Section: Discussionmentioning

confidence: 81%

“…In general, regardless of the fish species examined, elevated water temperature that still remains within the physiological range of the species has been shown to alter immune function [21]. For example, exposure of Catfish (Heteropneustes fossilis) to elevated temperature increases mitochondrial superoxide (O 2 ÿ ) production in the gills [22] and enhances antibody activity in Atlantic cod, Gadus morhua L. [23]. Langton et al [24] demonstrated that exposure of Atlantic halibut to increased water temperature had no effect on phagocytosis, but reduced host resistance against bacterial challenge [25].…”

Section: Introductionmentioning

confidence: 99%

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Effects of elevated temperature and nickel pollution on the immune status of Japanese medaka

Prophete

Carlson

et al. 2006

Fish & Shellfish Immunology

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Section: Discussionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Effects of elevated temperature and nickel pollution on the immune status of Japanese medaka

Prophete

Carlson

et al. 2006

Fish & Shellfish Immunology

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“…In an ischemia-reperfusion experiment, it was demonstrated that prolongation of the hypoxic phase increases oxidative damage to molecules and concentration of hydroperoxides during recovery (Venditti et al, 2001). In addition, the intertidal condition induces variations in other abiotic parameters such as temperature, which are known to influence the redox balance (Prakash et al, 1998;Martínez-Álvarez et al, 2002;Khessiba et al, 2005;Heise et al, 2006). Fluctuations in the diverse environmental and physiological parameters linked to tidal oscillations are more pronounced for HS mussels than for LS, moreover the cyclic repetition of these conditions probably intensifies the stress endured by HS mussels.…”

Section: Discussionmentioning

confidence: 99%

Tidal height influences the levels of enzymatic antioxidant defences in Mytilus edulis

Letendre

Chouquet

Manduzio

et al. 2009

Marine Environmental Research

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We investigated the potential variability of enzymatic antioxidant activities in blue mussels Mytilus edulis from a single intertidal population but living at different tidal heights. Activity levels of antioxidant enzymes (Cu/Zn superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione transferase) were measured in the gills and digestive gland of mussels sampled at high shore (HS, air-exposure>6h/12h) and low shore (LS, air-exposure<2h/12h) of an intertidal zone (Yport, Normandie, France) for two consecutive autumns. In both tissues, levels of each enzymatic activity (except GST) were clearly higher in HS mussels than in LS for the two years. These results suggest an ability to acclimate the enzymatic antioxidant defences to the degree of undergone stress, confirming the importance of environmental conditions in the antioxidant responses. Therefore, the location of organisms on the shore should be taken into account in sampling for ecotoxicological studies.

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“…Modulation of antioxidants by heat stress has been reported in broiler chickens and marine invertebrates (Heise et al, 2003;Mahmoud and Edens, 2003). Regarding the antioxidant response under temperature stress, Prakash et al (1998) reported ROS production in response to temperature stress of 12°C in the gills of the catfish Heteropneustes fossilis.…”

Section: Superoxide Dismutase (Sod)mentioning

confidence: 93%

Combined Effects of Copper and Temperature on Antioxidant Enzymes in the Black Rockfish Sebastes schlegeli

Min¹,

Baeck²,

Kang³

2014

Fisheries and aquatic sciences

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Copper has been widely used to control algae and pathogens in fish culture ponds. However, its toxic effects on fish depend not only on its concentration in the water but also on the water quality. A laboratory experiment was conducted to assess copper toxicity in the black rockfish Sebastes schlegeli using a panel of antioxidant enzymes, including glutathione (GSH), glutathione S-transferase (GST), glutathione peroxidase (GPx), glutathione reductase (GR) and superoxide dismutase (SOD), at different levels of copper at three water temperatures (WT, 18, 23, 28°C) for 4 days. After exposure to two copper concentrations (100 and 200 μg/L), GSH levels and GST activities increased significantly, depending on WT (P < 0.05) in the liver, gill, and kidney of the black rockfish. GPx and SOD activities decreased significantly with both increasing WT and copper treatment in the organs of black rockfish (P < 0.05). These changes can be seen as initial responses to temperature stress and as a sustained response to copper exposure. This also indicates that GSH and related enzymes activities were sensitive indexes to stress by toxicants such as copper. The present findings suggest that simultaneous stress due to temperature change and copper exposure can accelerate changes in enzymes activities in the black rockfish. This provides another example of synergism between environmental temperature and pollutants, which may have important implications for the survival of fish in polluted environments during seasonal warming and/or global climate change.

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Superoxide Anion Radical Generation as a Temperature Stress Response in the Gills of Freshwater Catfish Heteropneustes fossilis: Role in Mucus Exudation Under Elevated Temperature

Cited by 9 publications

References 50 publications

Effects of elevated temperature and nickel pollution on the immune status of Japanese medaka

Effects of elevated temperature and nickel pollution on the immune status of Japanese medaka

Tidal height influences the levels of enzymatic antioxidant defences in Mytilus edulis

Combined Effects of Copper and Temperature on Antioxidant Enzymes in the Black Rockfish Sebastes schlegeli

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