Results 131 to 140 of about 3,379 (181)

Effects of microcystins on fish

Environmental Toxicology and Chemistry, 2006
Abstract Microcystins (MCs) are hepatotoxic heptapeptides released into water during or on senescence of cyanobacterial blooms. This review details the different effects of the MCs on fish and discusses their potential consequences in aquatic food webs.
Malbrouck, Christelle, Kestemont, Patrick   +1 more
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Toxicology and Evaluation of Microcystins

Therapeutic Drug Monitoring, 2000
This paper reviews the toxicity and tumor-promoting properties of microcystins. Methods for screening and/or identification of microcystins in environmental samples are discussed and compared. Specific emphasis is placed on newly developed extraction/detection methods, e.g., solid phase microextraction (SPME) technique, and capillary electrophoresis ...
P K, Lam, M, Yang, M H, Lam
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Microbial Degradation of Microcystins

Chemical Research in Toxicology, 2013
Hepatotoxic microcystins that are produced by freshwater cyanobacteria pose a risk to public health. These compounds may be eliminated by enzymatic degradation. Here, we review the enzymatic pathways for the degradation of these hepatotoxins, some of which are newly discovered processes.
Dariusz, Dziga, Marcin, Wasylewski, Benedykt, Wladyka, Sonja, Nybom, Jussi, Meriluoto   +4 more
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the toxicology of microcystins

Toxicon, 1998
Microcystins are a family of more than 50 structurally similar hepatotoxins produced by species of freshwater cyanobacteria, primarily Microcystis aeruginosa. They are monocyclic heptapeptides, characterised by some invariant amino acids, including one of unusual structure which is essential for expression of toxicity.
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The biological functions of microcystins

Water Research
Microcystins are potent hepatotoxins predominantly produced by bloom-forming freshwater cyanobacteria (e.g., Microcystis, Planktothrix, Dolichospermum). Microcystin biosynthesis involves large multienzyme complexes and tailoring enzymes encoded by the mcy gene cluster. Mutation, recombination, and deletion events have shaped the mcy gene cluster in the
Chenlin Hu, Lirong Song, Elke Dittmann   +2 more
exaly   +3 more sources

Microcystin-LR and chemically degraded microcystin-LR electrochemical oxidation

The Analyst, 2012
Microcystins (MCs) are cyclic hepatotoxic heptapeptides produced by certain strains of freshwater cyanobacteria toxic for humans and animals. The electrochemical behaviour of microcystin-LR (MC-LR) at a glassy carbon electrode (GCE) was investigated using cyclic voltammetry (CV), square wave voltammetry (SWV) and differential pulse voltammetry (DPV ...
Ilanna C, Lopes, Paulina V F, Santos, Victor C, Diculescu, Francisco M P, Peixoto, Mário C U, Araújo, Auro A, Tanaka, Ana Maria, Oliveira-Brett   +6 more
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Distribution of Microcystin-Producing and Non-Microcystin-Producing Microcystis sp. in European Freshwater Bodies: Detection of Microcystins and Microcystin Genes in Individual Colonies

Systematic and Applied Microbiology, 2004
Microcystis is a well-known cyanobacterial genus frequently producing hepatotoxins named microcystins. Toxin production is encoded by microcystin genes (mcy). This study aims (i) to relate the mcy occurrence in individual colonies to the presence of microcystin, (ii) to assess whether morphological characteristics (morphospecies) are related to the ...
Lorena, Via-Ordorika, Jutta, Fastner, Rainer, Kurmayer, Michael, Hisbergues, Elke, Dittmann, Jiri, Komarek, Marcel, Erhard, Ingrid, Chorus   +7 more
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Methods for determining microcystins (peptide hepatotoxins) and microcystin-producing cyanobacteria

Water Research, 2006
Episodes of cyanobacterial toxic blooms and fatalities to animals and humans due to cyanobacterial toxins (CBT) are known worldwide. The hepatotoxins and neurotoxins (cyanotoxins) produced by bloom-forming cyanobacteria have been the cause of human and animal health hazards and even death.
Lalita N, Sangolkar, Sarika S, Maske, Tapan, Chakrabarti   +2 more
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Decomposition of Microcystin-LR, Microcystin-RR, and Microcystin-YR in Water Samples Submitted to in Vitro Dissolution Tests

Journal of Agricultural and Food Chemistry, 2004
The presence of cyanobacterial toxins (microcystins) in waters and food increases the risk of toxicity to animal and human health. These toxins can degrade in the human gastrointestinal tract before they are absorbed. To evaluate this possible degradation, water samples spiked with known concentrations of microcystins MC-LR, MC-RR, and MC-YR, which are
Isabel M, Moreno, Judith, Maraver, Esther C, Aguete, Manel, Leao, Ana, Gago-Martínez, Ana M, Cameán   +5 more
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Pyrolytic behaviour of microcystins and microcystin-spiked algal blooms

Journal of Analytical and Applied Pyrolysis, 2005
Peer ...
Cameán Fernández, A. M., Moreno Navarro, I., Verdejo Robles, Trinidad, González-Vila, Francisco Javier, González-Pérez, José Antonio   +4 more
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