Toxicological and metabolic parameters of the teleost fish (Leporinus obtusidens) in response to commercial herbicides containing clomazone and propanil

Moraes, Bibiana Silveira; Loro, Vânia Lúcia; Pretto, Alexandra; Fonseca, Milene Braga da; Menezes, Charlene; Marchesan, Enio; Reimche, Geovane Boschmann; Avila, Luis Antônio de

doi:10.1016/j.pestbp.2009.06.006

Cited by 44 publications

(18 citation statements)

References 34 publications

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“…The obtained results agreed with those of Moraes et al (2009) andHamed (2010). Also it is more or less in agreement with those of David et al(2007) who recorded an increase in AchE activity of Cirrhinus mrigala fish exposed to LC 50 of malathion (3 micro/l) for 5 and 15 days but on the 25 th day of exposure all values approached the normal ones.…”

Section: Resultssupporting

confidence: 90%

“…Or may be due to the induction of membrane peroxidation which can cause change in membrane fluidity and permeability, then enhance the rate of protein degeneration, and ultimately cell lysis (Tappel, 1973). But the results disagreed with Moraes et al (2009) who recorded a significant decrease in hepatic (TBARS) levels of the teleost fish, Leporinus obtusidens exposed to clomazone and propanil for 90 days. This disagreement may be due to the difference in fish species or the type of the herbicides used.…”

Section: Resultscontrasting

confidence: 68%

“…On the other hand, the results disagreed with those of Moraes et al (2009) and Xing et al (2012). These authors pointed out that the observed decrease in CAT activity could be explained by the flux of superoxide radicals due to the oxidative stress caused by pollutant exposure.…”

Section: Resultsmentioning

confidence: 79%

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Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Kadry

Amer

Marzouk

et al. 2012

Egypt. J. of Aquatic Biolo. and Fish.

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The present study was planned aiming to investigate the effects of atrazine herbicide exposure on stress biomarkers acetylcholinesterase activity (AchE) and cortisol, oxidative stress responses and the histopathological changes in liver of female Clarias gariepinus and the ameliorative effect of vitamin E supplementation (240mg/kg diet) on the degree of atrazine sublethal toxicity (1.37mg/l) for 6 weeks. Chronic exposure to atrazine revealed a marked inhibition in the activity of AchE. But, significant increase of serum cortisol level was recorded. Moreover, atrazine exposure was associated with a marked induction of oxidative damage in liver tissue as evidenced by increased level of lipid peroxidation (LPO) and reduced glutathione (GSH) content. Atrazine exposure also led to a significant increase in the activities of catalase (CAT) and superoxide dismutase (SOD).Furthermore, histopathological examination of the liver of exposed fish showed dilatation and congestion of blood vessels, fatty degeneration, necrosis and pyknotic nuclei of hepatocytes. However, fish fed diet supplemented with vitamin E exhibited protective effect by minimizing the atrazine-induced toxicity, through measured values more or less similar to the control group fish.

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Section: Resultssupporting

confidence: 90%

Section: Resultscontrasting

confidence: 68%

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Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Kadry

Amer

Marzouk

et al. 2012

Egypt. J. of Aquatic Biolo. and Fish.

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“…The most commonly found effect of pesticide toxicity is the inhibition of enzyme activity. Our results are agreement with similar experiments using rice field conditions, where Leporinus obtusidens were exposed to commercial herbicides clomazone and quinclorac (Moraes et al, 2007) and clomazone and propanil (Moraes et al 2009a). For both studies, brain and muscle AChE were inhibited after a long period of exposure to pesticides.…”

Section: Discussionsupporting

confidence: 91%

“…CAT is a primary antioxidant defense component that protects fish from oxidative stress by converting hydrogen peroxide to oxygen and water (Atli and Canli, 2007). Decreased CAT activity was also observed in the liver of Leporinus obtusidens exposed to clomazone and propanil in a field study similar to ours (Moraes et al, 2009a). Protein carbonyl formation can occur as a result of oxidative stress.…”

Section: Discussionsupporting

confidence: 78%

Oxidative stress biomarkers in Cyprinus carpio exposed to commercial herbicide bispyribac‐sodium

Toni¹,

Menezes²,

Loro³

et al. 2010

J of Applied Toxicology

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Cyprinus carpio were exposed under field conditions to 20.87 microg l(-1) of commercial herbicide bispyribac-sodium (Nominee, SC), during 7, 21 and 72 days. Enzymatic parameters such as catalase (CAT), glutathione S-transferase (GST) and acetylcholinesterase (AChE) activities, as well as thiobarbituric acid-reactive substances (TBARS) and protein carbonyl contents were studied in different tissues. After 7 days of exposure, GST activity decreased. At the same period, brain AChE activity increased, but a reduction of activity was observed in muscle tissue. Brain TBARS levels increased at 7 days. After 21 days of exposure liver CAT levels and muscle AChE activities decreased. In the same period, liver protein carbonyl and muscle TBARS increased. After 72 days of exposure in the field, AChE activity was reduced in both brain and muscle. Protein carbonyl contents in liver and brain TBARS levels increased. Muscle AChE activity, TBARS and protein carbonyl can be used as biomarkers of exposure to the herbicide bispyribac-sodium. This study demonstrates effects of exposure to bispyribac-sodium under rice field conditions on oxidative stress parameters in tissues of Cyprinus carpio.

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Toxicological responses of Cyprinus carpio exposed to the herbicide penoxsulam in rice field conditions

Cattaneo

Clasen

Loro

et al. 2010

J of Applied Toxicology

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Cyprinus carpio fish were exposed to penoxsulam (Ricer) in field conditions. The experiment in the rice field was carried out for 7, 21 and 72 days. Oxidative stress parameters and antioxidant profile were studied. The acetylcholinesterase (AChE) enzyme activity in the brain was increased after 7 days and reduced after 21 and 72 days of the experiment in the rice field. The AChE activity in muscle was reduced only after 72 days of exposure. Thiobarbituric acid-reactive species were increased in the liver, brain and muscle at 7 days of the trial, reduced at 21 days in the brain and unaltered after 72 days of exposure in muscle. However, an increase in this parameter in the brain and liver was observed. Liver glutathione S-transferase was reduced at 7 days, unchanged at 21 days and increased after 72 days of exposure. Catalase of the liver changed only in the second experimental period, when it was reduced. Liver protein carbonyl was reduced at 7 days and increased at 21 and 72 days of exposure. This study shows long-term effects of rice herbicide at environmentally relevant concentrations on toxicological parameters in different tissues (brain, muscle and liver) of Cyprinus carpio.

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Toxicological and metabolic parameters of the teleost fish (Leporinus obtusidens) in response to commercial herbicides containing clomazone and propanil

Cited by 44 publications

References 34 publications

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Vitamin E as antioxidant in female african catfish (Clarias gariepinus) exposed to chronic toxicity of atrazine

Oxidative stress biomarkers in Cyprinus carpio exposed to commercial herbicide bispyribac‐sodium

Toxicological responses of Cyprinus carpio exposed to the herbicide penoxsulam in rice field conditions

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