Results 51 to 60 of about 2,771 (230)

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

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

The Effects of the Harmful Algal Bloom Species Karenia brevis on Survival of Red Porgy (Pagrus pagrus) Larvae

Toxins, 2022
The harmful algal bloom species, Karenia brevis, forms annual, often intense blooms in the Gulf of Mexico, particularly along the west Florida shelf. Though the ability of K.
Richard Wayne Litaker, Alex K. Bogdanoff, Donnie Ransom Hardison, William C. Holland, Andrew Ostrowski, James A. Morris   +5 more
doaj   +1 more source

Improving in vitro ciguatoxin and brevetoxin detection: selecting neuroblastoma (Neuro-2a) cells with lower sensitivity to ouabain and veratridine (OV-LS).

Harmful Algae, 2021
Marine biotoxins accumulating in seafood products pose a risk to human health. These toxins are often potent in minute amounts and contained within complex matrices; requiring sensitive, reliable, and robust methods for their detection.
Christopher R Loeffler, Dorina Bodi, L. Tartaglione, C. Dell’Aversano, A. Preiss-Weigert   +4 more
semanticscholar   +1 more source

Structure Activity Relationship of Brevenal Hydrazide Derivatives

Marine Drugs, 2014
Brevenal is a ladder frame polyether produced by the dinoflagellate Karenia brevis. This organism is also responsible for the production of the neurotoxic compounds known as brevetoxins. Ingestion or inhalation of the brevetoxins leads to adverse effects
Allan Goodman, Jennifer R. McCall, Henry M. Jacocks, Alysha Thompson, Daniel Baden, William M. Abraham, Andrea Bourdelais   +6 more
doaj   +1 more source

Synthesis, Modeling, and Biological Evaluation of Analogues of the Semisynthetic Brevetoxin Antagonist β‐Naphthoyl‐Brevetoxin [PDF]

ChemBioChem, 2007
AbstractBrevetoxins are neurotoxic compounds produced by the dinoflagellate Karenia brevis. Extensive blooms induce neurotoxic shellfish poisoning (NSP) and asthma‐like symptoms in humans. β‐naphthoyl‐brevetoxin, the first semisynthetic brevetoxin antagonist, has been defined as the lead compound in the investigation of the mechanisms of ...
Sophie, Michelliza, William M, Abraham, Henry M, Jacocks, Thomas, Schuster, Daniel G, Baden   +4 more
openaire   +2 more sources

Brevenal inhibits pacific ciguatoxin-1B-induced neurosecretion from bovine chromaffin cells.

PLoS ONE, 2008
Ciguatoxins and brevetoxins are neurotoxic cyclic polyether compounds produced by dinoflagellates, which are responsible for ciguatera and neurotoxic shellfish poisoning (NSP) respectively. Recently, brevenal, a natural compound was found to specifically
César Mattei, Peter J Wen, Truong D Nguyen-Huu, Martha Alvarez, Evelyne Benoit, Andrea J Bourdelais, Richard J Lewis, Daniel G Baden, Jordi Molgó, Frédéric A Meunier   +9 more
doaj   +1 more source

Marine Neurotoxins’ Effects on Environmental and Human Health: An OMICS Overview

Marine Drugs, 2021
Harmful algal blooms (HAB), and the consequent release of toxic metabolites, can be responsible for seafood poisoning outbreaks. Marine wildlife can accumulate these toxins throughout the food chain, which presents a threat to consumers’ health.
Sophie Guillotin, Nicolas Delcourt
doaj   +1 more source