Mancozeb exposure results in manganese accumulation and Nrf2-related antioxidant responses in the brain of common carp Cyprinus carpio

Manganese (Mn)-containing dithiocarbamates such as Mancozeb (MZ) have been shown to induce oxidative stress-related toxicity in rodents and humans. However, little is known about the neurotoxic effects induced by MZ in fish. In this study, carp ( Cyprinus carpio ) were exposed to non-lethal waterbor...

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Veröffentlicht in:Environmental science and pollution research international 2018-06, Vol.25 (16), p.15529-15540
Hauptverfasser: Costa-Silva, Dennis Guilherme, Lopes, Andressa Rubim, Martins, Illana Kemmerich, Leandro, Luana Paganotto, Nunes, Mauro Eugênio Medina, de Carvalho, Nelson Rodrigues, Rodrigues, Nathane Rosa, Macedo, Giulianna Echeveria, Saidelles, Ana Paula, Aguiar, Cassiana, Doneda, Morgana, Flores, Erico Marlon Moraes, Posser, Thais, Franco, Jeferson Luis
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container_end_page 15540
container_issue 16
container_start_page 15529
container_title Environmental science and pollution research international
container_volume 25
creator Costa-Silva, Dennis Guilherme
Lopes, Andressa Rubim
Martins, Illana Kemmerich
Leandro, Luana Paganotto
Nunes, Mauro Eugênio Medina
de Carvalho, Nelson Rodrigues
Rodrigues, Nathane Rosa
Macedo, Giulianna Echeveria
Saidelles, Ana Paula
Aguiar, Cassiana
Doneda, Morgana
Flores, Erico Marlon Moraes
Posser, Thais
Franco, Jeferson Luis
description Manganese (Mn)-containing dithiocarbamates such as Mancozeb (MZ) have been shown to induce oxidative stress-related toxicity in rodents and humans. However, little is known about the neurotoxic effects induced by MZ in fish. In this study, carp ( Cyprinus carpio ) were exposed to non-lethal waterborne concentrations of MZ, and oxidative stress parameters as well as metal accumulation in fish brains were evaluated. The experimental groups were as follows: control, MZ 5 mg/L, and MZ 10 mg/L. Fish were exposed for 7 days, and then brain was removed and prepared for subsequent analysis of antioxidant enzymes, reactive oxygen species (ROS), and expression of Nrf2 and phosphoNrf2. In parallel, manganese (Mn) levels were evaluated in blood and brain tissues. Mn levels were significantly increased in blood and brain of MZ-exposed carps. In addition, a concentration-dependent increase ( p  
doi_str_mv 10.1007/s11356-018-1724-9
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However, little is known about the neurotoxic effects induced by MZ in fish. In this study, carp ( Cyprinus carpio ) were exposed to non-lethal waterborne concentrations of MZ, and oxidative stress parameters as well as metal accumulation in fish brains were evaluated. The experimental groups were as follows: control, MZ 5 mg/L, and MZ 10 mg/L. Fish were exposed for 7 days, and then brain was removed and prepared for subsequent analysis of antioxidant enzymes, reactive oxygen species (ROS), and expression of Nrf2 and phosphoNrf2. In parallel, manganese (Mn) levels were evaluated in blood and brain tissues. Mn levels were significantly increased in blood and brain of MZ-exposed carps. In addition, a concentration-dependent increase ( p  &lt; 0.05) in ROS levels was observed in parallel to increments ( p  &lt; 0.05) in the activity of major antioxidant enzymes, such as GPx, GR, and GST. On the other hand, significant decreases ( p  &lt; 0.05) in CAT and SOD activities were observed. The expression of total and phosphorylated forms of Nrf2 was significantly ( p  &lt; 0.05) upregulated in the brain of carps exposed to Mz when compared to the control, indicating an activation of the Nrf2 antioxidant pathway. Our study showed for the first time the activation of the Nrf2/ARE pathway and bioaccumulation of Mn induced by MZ exposure in fish species, highlighting important mechanisms of action and its toxicological impacts to aquatic organisms.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-018-1724-9</identifier><identifier>PMID: 29569203</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Activation ; Animals ; Antioxidants ; Antioxidants - metabolism ; Aquatic organisms ; Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Bioaccumulation ; Blood ; Brain ; Brain - drug effects ; Brain - metabolism ; Carp ; Carps - metabolism ; Cyprinidae ; Cyprinus carpio ; Dose-Response Relationship, Drug ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental science ; Enzymes ; Exposure ; Fish ; Fish Proteins - genetics ; Fish Proteins - metabolism ; Fungicides ; Fungicides, Industrial - toxicity ; Mancozeb ; Maneb - toxicity ; Manganese ; Manganese - metabolism ; Neurotoxicity ; NF-E2-Related Factor 2 - genetics ; NF-E2-Related Factor 2 - metabolism ; Oxidative stress ; Reactive oxygen species ; Research Article ; Rodents ; Superoxide dismutase ; Toxicity ; Waste Water Technology ; Water Management ; Water Pollutants, Chemical - toxicity ; Water Pollution Control ; Zineb - toxicity</subject><ispartof>Environmental science and pollution research international, 2018-06, Vol.25 (16), p.15529-15540</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2018</rights><rights>Environmental Science and Pollution Research is a copyright of Springer, (2018). 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Our study showed for the first time the activation of the Nrf2/ARE pathway and bioaccumulation of Mn induced by MZ exposure in fish species, highlighting important mechanisms of action and its toxicological impacts to aquatic organisms.</description><subject>Activation</subject><subject>Animals</subject><subject>Antioxidants</subject><subject>Antioxidants - metabolism</subject><subject>Aquatic organisms</subject><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Bioaccumulation</subject><subject>Blood</subject><subject>Brain</subject><subject>Brain - drug effects</subject><subject>Brain - metabolism</subject><subject>Carp</subject><subject>Carps - metabolism</subject><subject>Cyprinidae</subject><subject>Cyprinus carpio</subject><subject>Dose-Response Relationship, Drug</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental science</subject><subject>Enzymes</subject><subject>Exposure</subject><subject>Fish</subject><subject>Fish Proteins - 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However, little is known about the neurotoxic effects induced by MZ in fish. In this study, carp ( Cyprinus carpio ) were exposed to non-lethal waterborne concentrations of MZ, and oxidative stress parameters as well as metal accumulation in fish brains were evaluated. The experimental groups were as follows: control, MZ 5 mg/L, and MZ 10 mg/L. Fish were exposed for 7 days, and then brain was removed and prepared for subsequent analysis of antioxidant enzymes, reactive oxygen species (ROS), and expression of Nrf2 and phosphoNrf2. In parallel, manganese (Mn) levels were evaluated in blood and brain tissues. Mn levels were significantly increased in blood and brain of MZ-exposed carps. In addition, a concentration-dependent increase ( p  &lt; 0.05) in ROS levels was observed in parallel to increments ( p  &lt; 0.05) in the activity of major antioxidant enzymes, such as GPx, GR, and GST. On the other hand, significant decreases ( p  &lt; 0.05) in CAT and SOD activities were observed. The expression of total and phosphorylated forms of Nrf2 was significantly ( p  &lt; 0.05) upregulated in the brain of carps exposed to Mz when compared to the control, indicating an activation of the Nrf2 antioxidant pathway. Our study showed for the first time the activation of the Nrf2/ARE pathway and bioaccumulation of Mn induced by MZ exposure in fish species, highlighting important mechanisms of action and its toxicological impacts to aquatic organisms.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>29569203</pmid><doi>10.1007/s11356-018-1724-9</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-3874-8618</orcidid></addata></record>
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1614-7499
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source MEDLINE; Springer Journals
subjects Activation
Animals
Antioxidants
Antioxidants - metabolism
Aquatic organisms
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Bioaccumulation
Blood
Brain
Brain - drug effects
Brain - metabolism
Carp
Carps - metabolism
Cyprinidae
Cyprinus carpio
Dose-Response Relationship, Drug
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Enzymes
Exposure
Fish
Fish Proteins - genetics
Fish Proteins - metabolism
Fungicides
Fungicides, Industrial - toxicity
Mancozeb
Maneb - toxicity
Manganese
Manganese - metabolism
Neurotoxicity
NF-E2-Related Factor 2 - genetics
NF-E2-Related Factor 2 - metabolism
Oxidative stress
Reactive oxygen species
Research Article
Rodents
Superoxide dismutase
Toxicity
Waste Water Technology
Water Management
Water Pollutants, Chemical - toxicity
Water Pollution Control
Zineb - toxicity
title Mancozeb exposure results in manganese accumulation and Nrf2-related antioxidant responses in the brain of common carp Cyprinus carpio
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