Search Results - "de Magalhães, Valéria Freitas"

Evidence of cylindrospermopsin uptake and clearance in fish (Oreochromis niloticus) under laboratory conditions by Silva, Rodrigo, Oliveira, Rafael Rosas, Azevedo, Sandra Maria Feliciano, Soares, Raquel Moares, Magalhães, Valéria Freitas De

“…Cylindrospermopsin (CYN) is a cyanotoxin that has raised serious concerns about public health in many parts of the world. It can bioaccumulate and affect the…”
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Single and combined effects of microcystin‐ and saxitoxin‐producing cyanobacteria on the fitness and antioxidant defenses of cladocerans by da S. Ferrão‐Filho, Aloysio, de Abreu S. Silva, Daniel, de Oliveira, Taissa A., de Magalhães, Valéria Freitas, Pflugmacher, Stephan, da Silva, Eduardo Mendes

“…Cyanobacteria produce different toxic compounds that affect animal life, among them hepatotoxins and neurotoxins. Because cyanobacteria are able to produce a…”
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Microcystin contamination in fish from the Jacarepaguá Lagoon (Rio de Janeiro, Brazil): ecological implication and human health risk by FREITAS DE MAGALHAES, Valéria, MORAES SOARES, Raquel, AZEVEDO, Sandra M. F. O

“…Chronic and subchronic toxicity from exposure to microcystins, cyclic peptide liver toxins from certain cyanobacteria, poses an important hazard, which has…”
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A rapid bioassay for detecting saxitoxins using a Daphnia acute toxicity test by Ferrão-Filho, Aloysio da S., Soares, Maria Carolina S., de Magalhães, Valéria Freitas, Azevedo, Sandra M.F.O.

“…Bioassays using Daphnia pulex and Moina micrura were designed to detect cyanobacterial neurotoxins in raw water samples. Phytoplankton and cyanotoxins from…”
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Degradation of Multiple Peptides by Microcystin-Degrader Paucibacter toxinivorans (2C20) by Santos, Allan A, Soldatou, Sylvia, de Magalhães, Valeria Freitas, Azevedo, Sandra M F O, Camacho-Muñoz, Dolores, Lawton, Linda A, Edwards, Christine

“…Since conventional drinking water treatments applied in different countries are inefficient at eliminating potentially toxic cyanobacterial peptides, a number…”
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South American PSP toxin-producing Cylindrospermopsis raciborskii (Cyanobacteria) decreases clearance rates of cladocerans more than copepods by Fabre, Amelia, Lacerot, Gissell, de Paiva, Rafael Rodriguez, Soares, M. Carolina S., de Magalhães, Valéria Freitas, Bonilla, Sylvia

“…Toxic effects of freshwater cyanobacteria on mesozooplankton partially depend on the feeding strategies, generalist (cladocera) or selective filter-feeders…”
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Low concentrations of cylindrospermopsin induce increases of reactive oxygen species levels, metabolism and proliferation in human hepatoma cells (HepG2) by Liebel, Samuel, de Oliveira Ribeiro, Ciro Alberto, de Magalhães, Valéria Freitas, da Silva, Rodrigo de Cássio, Rossi, Stéfani Cibele, Randi, Marco Antônio Ferreira, Filipak Neto, Francisco

“…•Low concentrations of CYN (<10μgl−1) produced limited toxicity in HepG2 cells.•Pre-induction of CYPs slightly increased CYN toxicity.•Low concentrations of…”
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Biomonitoring of cyanotoxins in two tropical reservoirs by cladoceran toxicity bioassays by Ferrão-Filho, Aloysio da S., Soares, Maria Carolina S., de Freitas Magalhães, Valeria, Azevedo, Sandra M.F.O.

“…This study evaluates the potential for the use of cladocerans in biomonitoring of cyanobacterial toxins. Two zooplankton species ( Daphnia gessneri and Moina…”
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Multiple biomarkers response in a Neotropical fish exposed to paralytic shellfish toxins (PSTs) by Calado, Sabrina Loise de Morais, Santos, Gustavo Souza, Vicentini, Maiara, Bozza, Deivyson Cattine, Prodocimo, Viviane, Magalhães, Valéria Freitas de, Cestari, Marta Margarete, Silva de Assis, Helena Cristina

“…The Alagados Reservoir (Southern Brazil) is used as water supply, and since 2002 there have been reports with a presence of cyanobacterial blooms and…”
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Cylindrospermopsin induces oocyte maturation and disrupts gene expression in zebrafish ovarian follicles by Moraes, Adriana Carvalho Natal de, Fallah, Hamideh Pourmohammadi, de Magalhães, Valéria Freitas, Habibi, Hamid R.

“…There is evidence that cylindrospermopsin (CYN) exerts reproductive toxicity in mice. However, little information is available concerning the toxicity of CYN…”
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The accumulation dynamics, elimination and risk assessment of paralytic shellfish toxins in fish from a water supply reservoir by Calado, Sabrina Loise de Morais, Santos, Gustavo Souza, Wojciechowski, Juliana, Magalhães, Valéria Freitas de, Silva de Assis, Helena Cristina

“…Paralytic shellfish Toxins (PSTs) or saxitoxins are neurotoxins that block the neural transmission by binding to the voltage-gated sodium channels in the nerve…”
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Sublethal effects of microcystin-LR in the exposure and depuration time in a neotropical fish: Multibiomarker approach by Calado, Sabrina Loise de Morais, Vicentini, Maiara, Santos, Gustavo Souza, Pelanda, Ana, Santos, Hayanna, Coral, Lucila Andriani, Magalhães, Valéria de Freitas, Mela, Maritana, Cestari, Marta Margarete, Silva de Assis, Helena Cristina

“…Eutrophication is an ecological process that results in cyanobacterial blooms. Microcystin-LR is the most toxic variant of microcystins and may cause toxic…”
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Depuration time and sublethal effects of microcystins in a freshwater fish from water supply reservoir by Calado, Sabrina Loise de Morais, Santos, Gustavo Souza, Leite, Talitha Pires Borges, Wojciechowski, Juliana, Nadaline, Mário, Bozza, Deivyson Cattine, Magalhães, Valéria Freitas de, Cestari, Marta Margarete, Prodocimo, Viviane, Silva de Assis, Helena Cristina

“…Microcystins (MCs) are hepatotoxins that have been considered to be a worldwide problem due the effects that they can cause to environmental and human health…”
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Neurotoxins in a water supply reservoir: An alert to environmental and human health by Calado, Sabrina Loise de Morais, Wojciechowski, Juliana, Santos, Gustavo Souza, Magalhães, Valéria Freitas de, Padial, André Andrian, Cestari, Marta Margarete, Silva de Assis, Helena Cristina da

“…Reservoirs are important source of power generation, recreation, and water supply. Nevertheless, human activities have favored the bloom of toxic cyanobacteria…”
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Comparative bioaccumulation and effects of purified and cellular extract of cylindrospermopsin to freshwater fish Hoplias malabaricus by da Silva, Rodrigo de Cássio, Grötzner, Sonia Regina, Moura Costa, Daniele Dietrich, Garcia, Juan Ramón Esquivel, Muelbert, Juan, de Magalhães, Valéria Freitas, Filipak Neto, Francisco, de Oliveira Ribeiro, Ciro Alberto

“…Many tropical freshwater ecosystems are impacted by cyanobacteria blooms increasing the risk of cyanotoxins exposure to aquatic organisms while human…”
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South American PSP toxin-producing Cylindrospermopsis raciborskii by Fabre, Amelia, Lacerot, Gissell, de Paiva, Rafael Rodriguez, Soares, M. Carolina S, de Magalhães, Valeria Freitas, Bonilla, Sylvia

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