Iron Ore Mines Leachate Potential for Oxyradical Production

Hamoutene, Dounia; Rahimtula, Anver D.; Payne, J. F.

doi:10.1006/eesa.1999.1905

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…LPO presented a positive significant correlation with the reducible fraction of iron in sediment. Bagnyukova et al (2006) observed in Carassius auratus exposed to 20 or 500 mM of iron sulphate an increase of LPO in 1.4-2.5 fold, with respect to control fish and a significant increase of lipid peroxidation was observed by Hamoutene et al (2000) in S. trutta when phospholipids (liposomes, lipids from microsomes and salmon liver microsomes) were incubated with 2% iron. Quian and Buettner (1998) hypothesized that the Fenton reaction with pre-existing H 2 O 2 is only a minor initiator of free-radical oxidations, and the major initiators of biological freeradical oxidations are the oxidizing species formed by the reaction of Fe 2 þ with dioxygen.…”

Section: Correlationship Between Heavy Metals and Biomarkersmentioning

confidence: 99%

Oxidative stress biomarkers in Senegal sole, Solea senegalensis, to assess the impact of heavy metal pollution in a Huelva estuary (SW Spain): Seasonal and spatial variation

Oliva

Martorell

Gravato

et al. 2012

Ecotoxicology and Environmental Safety

107

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The response of wild fish to heavy metals was studied in sole (Solea senegalensis) collected in 2004, 2005 and 2006 at three sampling sites from Huelva estuary (SW Spain), in the vicinity of a petrochemical and mining industry. Heavy metals As, Cd, Cu, Fe, Pb and Zn were analyzed in samples collected from sediment, water and tissue (liver) to examine their bioconcentration and effects in fish such as lipid peroxidation (LPO), catalase (CAT; EC 1.11.1.6), glutathione peroxidase (GPx; EC 1.8.1.7), glutathione S-transferase (GST; EC 2.5.1.18) and glutathione reductase (GR; EC 1.11.1.6) were also analyzed in the fish liver. The results showed different effects in sole from diverse locations with varying degrees of pollution. Significant differences in LPO, CAT and GR activities between control fish and fish from sampling sites were observed as well as seasonal differences for biomarkers. Significant correlations were established between some biomarkers and heavy metals concentrations in liver, sediment and water. This study indicates the usefulness of integrating a set of biomarkers to assess the effects of pollutants in aquatic environments under complex mix of pollutants and chronic pollution situation.

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Section: Correlationship Between Heavy Metals and Biomarkersmentioning

confidence: 99%

Oxidative stress biomarkers in Senegal sole, Solea senegalensis, to assess the impact of heavy metal pollution in a Huelva estuary (SW Spain): Seasonal and spatial variation

Oliva

Martorell

Gravato

et al. 2012

Ecotoxicology and Environmental Safety

107

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“…In this investigation, we were interested in the possible toxicological effects of iron-ore mining on fish species from a tropical coastal lagoon in Brazil. Toxicological effects caused by effluents from iron-ore mines have been reported due to the potential role of Fe and other trace elements in the formation of free radicals leading to lipid peroxidation [5]. It has been proposed that vitamin A and provitamin A carotenoids may be depleted in organisms exposed to contaminants due to their role as an antioxidant [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Iron overload may result in depletion of hepatic retinoids due to enhanced formation of free radicals and induction of oxidative stress leading to tissue damage peroxidation [5,8]. Several studies on hepatic Fe overload have been performed in fish, based on Fe enrichment of the diet [9][10][11], parenteral administration of Fe in the form of various complexes, such as Fe dextran [12], or excessive Fe intake from an environmental source [13].…”

Section: Introductionmentioning

confidence: 99%

Hepatic retinoid levels in seven fish species (teleosts) from a tropical coastal lagoon receiving effluents from iron‐ore mining and processing

Pereira

Hattum

Brouwer

2011

Enviro Toxic and Chemistry

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The present study was undertaken to investigate the possible effects of Fe and trace element exposure on hepatic levels of retinoids in seven fish species. Concentrations of retinoids were measured in fish collected from a coastal lagoon in Brazil that receives effluents from an iron-ore mining and processing plant. Fish from nearby coastal lagoons were also included to assess possible differences related to chemical exposure. Results indicated considerable differences in hepatic retinoid composition among the various species investigated. The most striking differences were in retinol and derivative-specific profiles and in didehydro retinol and derivative-specific profiles. The Perciformes species Geophagus brasiliensis, Tilapia rendalli, Mugil liza, and Cichla ocellaris and the Characiforme Hoplias malabaricus were characterized as retinol and derivative-specific, while the Siluriformes species Hoplosternum littorale and Rhamdia quelen were didehydro retinol and derivative-specific fish species. A negative association was observed between Al, Pb, As, and Cd and hepatic didehydro retinoid levels. Fish with higher levels of hepatic Fe, Cu, and Zn showed unexpectedly significant positive correlations with increased hepatic retinol levels. This finding, associated with the positive relationships between retinol and retinyl palmitate with lipid peroxidation, may suggest that vitamin A is mobilized from other tissues to increase hepatic antioxidant levels for protection against oxidative damage. These data show significant but dissimilar associations between trace element exposure and hepatic retinoid levels in fish species exposed to iron-ore mining and processing effluents, without apparent major impacts on fish health and condition.

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“…Lake trout (Salvelinus namaycush) from Lake Wabush displayed bleached fish syndrome and other pathologies, as well as elevated levels of DNA oxidative damage and reduced levels of vitamin A in liver tissues in comparison with trout taken in a downstream reference lake (Payne et al, 1998(Payne et al, , 2001. In addition, rat and salmon liver microsomes exposed to Wabush iron-ore standard revealed induced ascorbic acid dependent lipid peroxidation and decreased cytochrome c reductase (Hamoutene et al, 2000). White sucker, a bottom feeding fish restricted to North America, is abundant and widespread in Canadian lakes including those in Labrador.…”

Section: Introductionmentioning

confidence: 99%

Endocrine disruption in the pituitary of white sucker (Catostomus commersoni) caged in a lake contaminated with iron-ore mine tailings

Ree

Payne

2005

Hydrobiologia

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Immunohistochemical analysis revealed that white suckers caged in Lake Wabush, which receives a high volume of iron ore tailings, had significantly lower levels of growth hormone per pituitary area than fish caged in an adjoining reference lake, Lake Shabogamo. This demonstrates that the pituitary could be a target to consider in endocrine studies. The findings are also novel with respect to the ecotoxicological potential of mining effluents. Hydrobiologia (2005) 532: 221-224 Ó Springer 2005

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Iron Ore Mines Leachate Potential for Oxyradical Production

Cited by 6 publications

References 25 publications

Oxidative stress biomarkers in Senegal sole, Solea senegalensis, to assess the impact of heavy metal pollution in a Huelva estuary (SW Spain): Seasonal and spatial variation

Oxidative stress biomarkers in Senegal sole, Solea senegalensis, to assess the impact of heavy metal pollution in a Huelva estuary (SW Spain): Seasonal and spatial variation

Hepatic retinoid levels in seven fish species (teleosts) from a tropical coastal lagoon receiving effluents from iron‐ore mining and processing

Endocrine disruption in the pituitary of white sucker (Catostomus commersoni) caged in a lake contaminated with iron-ore mine tailings

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