Results 51 to 60 of about 733 (153)

Florida’s Harmful Algal Bloom (HAB) Problem: Escalating Risks to Human, Environmental and Economic Health With Climate Change

Frontiers in Ecology and Evolution, 2021
Harmful Algal Blooms (HABs) pose unique risks to the citizens, stakeholders, visitors, environment and economy of the state of Florida. Florida has been historically subjected to reoccurring blooms of the toxic marine dinoflagellate Karenia brevis (C. C.
Cynthia Ann Heil, Amanda Lorraine Muni-Morgan, Amanda Lorraine Muni-Morgan   +2 more
doaj   +1 more source

Effectors of thioredoxin reductase: Brevetoxins and manumycin-A

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2019
The activities of two effectors, brevetoxin (PbTx) and manumycin-A (Man-A), of thioredoxin reductase (TrxR) have been evaluated against a series of fourteen TrxR orthologs originating from mammals, insects and protists and several mutants. Man-A, a molecule with numerous electrophilic sites, forms a covalent adduct with most selenocystine (Sec ...
Anupama, Tuladhar, Robert J, Hondal, Ricardo, Colon, Elyssa L, Hernandez, Kathleen S, Rein   +4 more
openaire   +3 more sources

The Chemistry and Biology of the Tetrodotoxin Natural Product Family

Angewandte Chemie International Edition, Volume 64, Issue 35, August 25, 2025.
Tetrodotoxin is best known as the poison of the pufferfish, which is a delicacy in Japanese cuisine. Its toxicity arises from the selective blockage of NaV channels, which is depicted for the NaV1.7 pore, highlighting the DEKA motif, which permeates sodium ions.
Benedikt Nißl, Marcel Mülbaier, Francesca Grisoni, Dirk Trauner, Marcel Bermúdez, Clemens Dialer, David B. Konrad   +6 more
wiley   +1 more source

Neurotoxic Shellfish Poisoning

Marine Drugs, 2008
Neurotoxic shellfish poisoning (NSP) is caused by consumption of molluscan shellfish contaminated with brevetoxins primarily produced by the dinoflagellate, Karenia brevis. Blooms of K.
Roberta Hammond, Lora E. Fleming, Andrew Reich, Sharon M. Watkins   +3 more
doaj  

Algal toxins alter copepod feeding behavior. [PDF]

PLoS ONE, 2012
Using digital holographic cinematography, we quantify and compare the feeding behavior of free-swimming copepods, Acartia tonsa, on nutritional prey (Storeatula major) to that occurring during exposure to toxic and non-toxic strains of Karenia brevis and
Jiarong Hong, Siddharth Talapatra, Joseph Katz, Patricia A Tester, Rebecca J Waggett, Allen R Place   +5 more
doaj   +1 more source

Opinion of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on the risks to human health associated with the proliferation of Ostreopsis spp. on the Basque coast

Food Risk Assess Europe, Volume 3, Issue 2, April 2025.
Abstract In France, the presence of marine microalgae of the genus Ostreopsis has been identified repeatedly on the Mediterranean coast for several years, whereas on the French Basque coasts its presence is much more recent. In the summers of 2021 and 2022, major Ostreopsis flowering episodes were reported on the Basque coast, resulting in several ...
Rodolphe Lemée, Jean‐François Humbert, Eric Abadie, Zouher Amzil, Elisa Berdalet, Ronel Biré, Marie‐Yasmine Dechraoui Bottein, Luc de Haro, Nicolas Delcourt, Valérie Fessard, Jean‐Philippe Jaeg, César Mattei, Anne Oppliger, Anne‐Sophie Pavaux, Eva Ternon, Gilles Bornert, Anne Togola, Jean Baron, Jean‐Luc Boudenne, Nicolas Cimetiere, Bruno Coulomb, Christophe Dagot, Sabine Denooz, Isabelle Dublineau, Frédéric Feder, Matthieu Fournier, Stéphane Garnaud‐Corbel, Nathalie Garrec, Johnny Gasperi, Julio Gonçalvès, Jean‐Louis Gonzalez, Olivier Horner, Michel Joyeux, Jérôme Labanowski, Sophie Lardy‐Fontan, Françoise Lucas, Christophe Mechouk, Laurent Moulin, Damien Mouly, Fabienne Petit, Catherine Quiblier, Pauline Rousseau‐Gueutin, Marie‐Pierre Sauvant‐Rochat, Michèle Tremblay, Bruno Le Bizec, Marie‐Louise Scippo, Pierre‐Marie Badot, Marie‐Yasmine Bottein, Rachida Chekri, Christine Demeilliers, Virginie Desvignes, Erwan Engel, Gautier Eppe, Anne‐Sophie Ficheux, Eric Houdeau, Emilie Lance, Olivier Laprevote, Michel Laurentie, Ludovic Le Hegarat, Jean‐Charles Leblanc, Nicolas Loiseau, David Makowski, Francesca Mancini, Eric Marchioni, Jean‐François Masfaraud, Mathilde Munier, Isabelle Oswald, Anne Platel, Yann Sivry, Paule Vasseur, Estelle Checlair‐Westerberg, Eléonore Ney, Nathalie Arnich, Carole Catastini   +73 more
wiley   +1 more source

Impact of Hurricane Ian (2022) on Karenia brevis Bloom on the West Florida Shelf

Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract Blooms of toxigenic Karenia brevis are a major concern to public health and marine ecosystems on the West Florida Shelf. Hurricanes and tropical storms can discharge huge amounts of terrestrial nutrients into coastal oceans over a short time and have been linked to large plankton blooms, but the underlying mechanisms for the bloom generation ...
Yuren Chen, Ming Li
wiley   +1 more source

Calcium Increase and Substance P Release Induced by the Neurotoxin Brevetoxin-1 in Sensory Neurons: Involvement of PAR2 Activation through Both Cathepsin S and Canonical Signaling

Cells, 2020
Red tides involving Karenia brevis expose humans to brevetoxins (PbTxs). Oral exposition triggers neurotoxic shellfish poisoning, whereas inhalation induces a respiratory syndrome and sensory disturbances.
Ophélie Pierre, Maxime Fouchard, Paul Buscaglia, Nelig Le Goux, Raphaël Leschiera, Olivier Mignen, Joachim W. Fluhr, Laurent Misery, Raphaële Le Garrec   +8 more
doaj   +1 more source

Identification of a Rapid Detoxification Mechanism for Brevetoxin in Rats [PDF]

Toxicological Sciences, 2005
We examined detoxification of brevetoxin in rats through metabolic activities and key elimination routes by analyzing samples from individual rats exposed to two brevetoxin congeners (PbTx-2 and PbTx-3). Brevetoxins were detected by radioimmunoassay in methanolic extracts of blood within 1 h post intraperitoneal (ip) administration.
Faisal F Y, Radwan, Zhihong, Wang, John S, Ramsdell   +2 more
openaire   +2 more sources

Fish Sludge as Feed in Circular Bioproduction: Overview of Biological and Chemical Hazards in Fish Sludge and Their Potential Fate via Ingestion by Invertebrates

Reviews in Aquaculture, Volume 17, Issue 1, January 2025.
This review provides knowledge of the biosecurity risks of using fish sludge to produce novel feed ingredients from low‐trophic, extractive animal species in circular value chains. The review includes nutritional composition, sludge treatment practices, EU regulations, and the fate of microbial and chemical hazards contained in sludge till raw ...
Kristin S. Pettersen, Veronika Sele, Pedro Araujo, Ikram Belghit, Sylvie L. Benestad, Aksel Bernhoft, Andy M. Booth, Gunnar S. Eriksen, Julia Farkas, Aleksander H. Handå, Bjørn Henrik Hansen, Kari O. Helgesen, Arne Holst‐Jensen, Gro S. Johannessen, Nina S. Liland, Anne‐Katrine Lundebye, Arne M. Malzahn, Hanne Nilsen, Tom S. Nordtvedt, Madelaine Norström, Magdalena M. Owczarek‐Kościelniak, Øivind Øines, Sonal J. Patel, Hilde Sindre, Inger B. Standal, Andreas Hagemann   +25 more
wiley   +1 more source