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Pinho, Grasiela Lopes Leães; Rosa, Cristiane Moura da; Maciel, Fabio Everton; Bianchini, Adalto; Yunes, João Sarkis; Proença, Luis Antonio de Oliveira; Monserrat, José María
(2005)
Microcystins are hepatotoxins suspected to generate oxidative stress. This mechanism was evaluated in gills of the estuarine crab Chasmagnathus granulatus (Decapoda, Brachyura). Adult male crabswere fed ground beef with ...
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Pinho, Grasiela Lopes Leães; Rosa, Cristiane Moura da; Maciel, Fabio Everton; Bianchini, Adalto; Yunes, João Sarkis; Proença, Luis Antonio de Oliveira; Monserrat, José María
(2005)
Antioxidant responses and oxidative stress were evaluated in the hepatopancreas of the estuarine crab Chasmagnathus granulates (Decapoda, Brachyura) after oral microcystin administration. Responses were evaluated through ...
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Dewes, Ligia Johansen; Sandrini, Juliana Zomer; Monserrat, José María; Yunes, João Sarkis
(2006)
Microcystins are usually the predominant cyanotoxins present in both drinking and recreational waters after cyanobacterial
blooms. Their classic toxic effect is hepatotoxicity through inhibition of serine/threonine ...
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Rosa, Carlos Eduardo da; Souza, Márcio Silva de; Yunes, João Sarkis; Proença, Luis Antonio de Oliveira; Nery, Luiz Eduardo Maia; Monserrat, José María
(2005)
In January of 2003, a cyanobacterial bloom in the Patos Lagoon (Southern Brazil) (32 050S–52 120W) was observed. Water samples were
taken to identify the composition and abundance of the bloom, as well as the occurrence ...
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Vinagre, Tânia Mariza de Mattos; Alciati, Julieta Carvalho; Regoli, Francesco; Bocchetti, Rafaela; Yunes, João Sarkis; Bianchini, Adalto; Monserrat, José María
(2003)
The objective of this work was to evaluate mechanisms of microcystin toxicity on crustacean species. Adult male crabs of
Chasmagnathus granulatus (13.97"0.35 g) acclimated to low salinity (2‰) were injected with saline ...
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Vinagre, Tânia Mariza de Mattos; Alciati, Julieta Carvalho; Regoli, Francesco; Bocchetti, Rafaela; Yunes, João Sarkis; Bianchini, Adalto; Monserrat, José María
(2003)
The objective of this work was to evaluate mechanisms of microcystin toxicity on crustacean species. Adult male crabs of Chasmagnathus granulatus (13.97"0.35 g) acclimated to low salinity (2‰) were injected with saline ...
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Maidana, Michelle; Carlis, Vania; Galhardi, Flora Gagliardi; Yunes, João Sarkis; Monserrat, Laura Alicia Geracitano; Monserrat, José María; Barros, Daniela Marti
(2006)
Microcystins produced by cyanobacteria are potent inhibitors of some protein phosphatases, but recent evidence also indicatests potential to generate oxidative
stress. In the present study, the effects of microcystin raw ...
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Amado, Lílian Lund; Garcia, Márcia Longaray; Ramos, Patrícia Baptista; Yunes, João Sarkis; Monserrat, José María
(2011)
We evaluated the effects of aqueous extracts of the cyanobacterium-producing microcystin(MC), Microcystis aeruginosa (strain RST9501), on detoxification capacity and
glutathione (GSH) synthesis in liver, brain,
gill, ...
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Amado, Lílian Lund; Garcia, Márcia Longaray; Ramos, Patrícia Baptista; Freitas, Ricardo Franco; Zafalon, Bruna; Ferreira, Josencler Luis Ribas; Yunes, João Sarkis; Monserrat, José María
(2009)
Determination of total antioxidant capacity, instead of the measurements of limited
number of antioxidants, is very important for the understanding of how antioxidants
interact with reactive oxygen species (ROS). Several ...
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Leão, Janaina de Castro; Monserrat, Laura Alicia Geracitano; Amado, Lílian Lund; Monserrat, José María; Yunes, João Sarkis
(2008)
Oxidative stress induced by microcystins was evaluated in an estuarine worm, Laeonereis acuta (Nereididae).Ten organisms were
exposed to lyophilized cells of a toxic Microcystis aeruginosa strain RST9501
( 2 lg/mL ...
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Votto, Ana Paula de Souza; Renon, Viviane Plasse; Yunes, João Sarkis; Rumjanek, Vivian Mary Barral Dodd; Capella, Marcia Alves Marques; Moura Neto, Vivaldo; Freitas, Marta Sampaio de; Monserrat, Laura Alicia Geracitano; Monserrat, José María; Trindade, Gilma Santos
(2007)
Multidrug resistance (MDR) is an obstacle in cancer treatment. An understanding of how tumoral cells react to oxidants can help us elucidate the cellular mechanism involved in resistance. Microcystins are cyanobacteria ...
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Pinho, Grasiela Lopes Leães; Rosa, Cristiane Moura da; Yunes, João Sarkis; Luquet, Carlos Marcelo; Bianchini, Adalto; Monserrat, José María
(2003)
Microcystins are toxins produced by cyanobacteria, being toxic to aquatic fauna. It was evaluated alternative mechanisms of microcystins toxicity, including oxidative stress and histopathology in the hepatopancreas of the ...
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Dewes, Ligia Johansen; Monserrat, José María; Ihara, Priscilla Mieko; Yunes, João Sarkis
(2007)
Neohelice granulata were collected during a bloom dominated by Microcystis sp. in Patos Lagoon (RS, Brazil) and then sacrificed at
different times of depuration in laboratory in order to verify microcystin (MC) content ...