Results 31 to 40 of about 1,538 (200)

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

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 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

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

Metabarcoding analysis identifies high diversity of harmful algal bloom species in the coastal waters of the Beibu Gulf

Ecology and Evolution, Volume 13, Issue 5, May 2023., 2023
This study firstly combined both short‐read and long‐read metabarcoding analyses for annual marine phytoplankton community and harmful algal bloom species identification in the Beibu Gulf. Based on the high richness from short‐read and the high accuracy of species identification from long‐read, HAB species with high diversity and abundance were ...
Liyan He, Zhiming Yu, Xin Xu, Jianan Zhu, Yongquan Yuan, Xihua Cao, Xiuxian Song   +6 more
wiley   +1 more source

Epicortical Brevetoxin Treatment Promotes Neural Repair and Functional Recovery after Ischemic Stroke

Marine Drugs, 2020
Emerging literature suggests that after a stroke, the peri-infarct region exhibits dynamic changes in excitability. In rodent stroke models, treatments that enhance excitability in the peri-infarct cerebral cortex promote motor recovery. This increase in
Erica Sequeira, Marsha L. Pierce, Dina Akasheh, Stacey Sellers, William H. Gerwick, Daniel G. Baden, Thomas F. Murray   +6 more
doaj   +1 more source

Concurrent exposure of bottlenose dolphins (Tursiops truncatus) to multiple algal toxins in Sarasota Bay, Florida, USA.

PLoS ONE, 2011
Sentinel species such as bottlenose dolphins (Tursiops truncatus) can be impacted by large-scale mortality events due to exposure to marine algal toxins.
Michael J Twiner, Spencer Fire, Lori Schwacke, Leigh Davidson, Zhihong Wang, Steve Morton, Stephen Roth, Brian Balmer, Teresa K Rowles, Randall S Wells   +9 more
doaj   +1 more source

Cellular and Transcriptional Responses of Crassostrea gigas Hemocytes Exposed in Vitro to Brevetoxin (PbTx-2)

Marine Drugs, 2012
Hemocytes mediate a series of immune reactions essential for bivalve survival in the environment, however, the impact of harmful algal species and their associated phycotoxins upon bivalve immune system is under debate.
Alcir Luiz Dafre, Margherita Anna Barracco, Rafael Trevisan, Erik Simoes, Renato C. Vieira, Eliza S. de Oliveira, Danielle F. Mello   +6 more
doaj   +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