Results 11 to 20 of about 145 (130)

Utility of Red Tide (Karenia brevis) Monitoring Data as a Predictive Tool to Estimate Brevetoxin Accumulation in Live, Free-Ranging Marine Mammals

Frontiers in Marine Science, 2021
Exposure of common bottlenose dolphins (Tursiops truncatus) to brevetoxins (PbTx) produced by blooms of the toxic phytoplankton Karenia brevis frequently results in severe health impacts, including illness and large-scale mortality events.
Spencer E. Fire, Glenn A. Miller, Edna R. Sabater, Randall S. Wells   +3 more
doaj   +1 more source

Exposure to the Florida red tide dinoflagellate, Karenia brevis, and its associated brevetoxins induces ecophysiological and proteomic alterations in Porites astreoides. [PDF]

PLoS ONE, 2020
As reef-building corals are increasingly being exposed to persistent threats that operate on both regional and global scales, there is a pressing need to better understand the complex processes that diminish coral populations. This study investigated the
David A Reynolds, Mi-Jeong Yoo, Danielle L Dixson, Cliff Ross   +3 more
doaj   +1 more source

Detection of Brevetoxin in Human Plasma by ELISA [PDF]

Journal of Analytical Toxicology, 2021
Abstract Florida red tides have become more common and persistent in and around the Gulf of Mexico. When in bloom, red tides can produce brevetoxins in high concentrations, leading to human exposures primarily through contaminated food and ocean spray.
Brady R Cunningham, Rebecca M Coleman, Adam M Schaefer, Elizabeth I Hamelin, Rudolph C Johnson   +4 more
openaire   +2 more sources

Pacific-Ciguatoxin-2 and Brevetoxin-1 Induce the Sensitization of Sensory Receptors Mediating Pain and Pruritus in Sensory Neurons

Marine Drugs, 2021
Ciguatera fish poisoning (CFP) and neurotoxic shellfish poisoning syndromes are induced by the consumption of seafood contaminated by ciguatoxins and brevetoxins.
Ophélie Pierre, Maxime Fouchard, Nelig Le Goux, Paul Buscaglia, Raphaël Leschiera, Richard J. Lewis, Olivier Mignen, Joachim W. Fluhr, Laurent Misery, Raphaële Le Garrec   +9 more
doaj   +1 more source

Brevetoxin-Producing Spherical Cells Present in Karenia brevis Bloom: Evidence of Morphological Plasticity?

Journal of Marine Science and Engineering, 2019
Spherical cells were detected in low salinity waters during a bloom of Karenia brevis in Alabama coastal waters. These balls resembled K. brevis in size and organelle appearance, contained similar concentration of brevetoxin, and occurred during ongoing ...
Lucie Novoveská, Alison Robertson
doaj   +1 more source

Brevetoxin and Conotoxin Interactions with Single-Domain Voltage-Gated Sodium Channels from a Diatom and Coccolithophore

Marine Drugs, 2021
The recently characterized single-domain voltage-gated ion channels from eukaryotic protists (EukCats) provide an array of novel channel proteins upon which to test the pharmacology of both clinically and environmentally relevant marine toxins.
Ping Yates, Julie A. Koester, Alison R. Taylor   +2 more
doaj   +1 more source

Comparative analysis of three brevetoxin-associated bottlenose dolphin (Tursiops truncatus) mortality events in the Florida Panhandle region (USA).

PLoS ONE, 2012
In the Florida Panhandle region, bottlenose dolphins (Tursiops truncatus) have been highly susceptible to large-scale unusual mortality events (UMEs) that may have been the result of exposure to blooms of the dinoflagellate Karenia brevis and its ...
Michael J Twiner, Leanne J Flewelling, Spencer E Fire, Sabrina R Bowen-Stevens, Joseph K Gaydos, Christine K Johnson, Jan H Landsberg, Tod A Leighfield, Blair Mase-Guthrie, Lori Schwacke, Frances M Van Dolah, Zhihong Wang, Teresa K Rowles   +12 more
doaj   +1 more source

Synthesis of the A−F Fragment of the Pacific Ciguatoxin CTX3C by Iterative Ring‐Closing Metathesis and Tsuji–Trost Allylation

Chemistry – A European Journal, Volume 29, Issue 72, December 22, 2023., 2023
The fully functionalized A−F ring system of the Pacific ciguatoxin CTX3C suitable for coupling to the I−M fragment of the natural product, has been synthesized from a simple glucal derivative. A six‐step sequence that features ring‐closing metathesis and stereoselective palladium‐mediated allylation has been deployed in an iterative manner to construct
Myron Triantafyllakis, Sam Alexander, Sophie Woolford, Claire Wilson, J. Stephen Clark   +4 more
wiley   +1 more source

Molecular Determinants of Brevetoxin Binding to Voltage-Gated Sodium Channels

Toxins, 2019
Brevetoxins are produced by dinoflagellates such as Karenia brevis in warm-water red tides and cause neurotoxic shellfish poisoning. They bind to voltage-gated sodium channels at neurotoxin receptor 5, making the channels more active by shifting the ...
Keiichi Konoki, Daniel G. Baden, Todd Scheuer, William A. Catterall   +3 more
doaj   +1 more source

First Light Demonstration of Red Solar Induced Fluorescence for Harmful Algal Bloom Monitoring

Geophysical Research Letters, Volume 50, Issue 13, 16 July 2023., 2023
Abstract The risks harmful algal blooms (HAB) pose to aquatic ecosystems, public health, and coastal economies necessitate supplementation of current observation strategies. Herein, we explore the use of red solar induced fluorescence (SIF) from the TROPOspheric Monitoring Instrument (TROPOMI), a remote sensing measurement retrievable in variable cloud
Kelly Luis, Philipp Köhler, Christian Frankenberg, Michelle Gierach   +3 more
wiley   +1 more source