Results 41 to 50 of about 1,682 (166)

Inhalation toxicity of brevetoxin 3 in rats exposed for 5 days

open access: yes, 2004
Brevetoxins are potent neurotoxins produced by the marine dinoflagellate Karenia brevis. Exposure to brevetoxins may occur during a K. brevis red tide when the compounds become aerosolized by wind and surf.
McDonald, Jacob   +11 more
core   +1 more source

Enantioselective Total Synthesis of Brevetoxin A: Unified Strategy for the B, E, G, and J Subunits [PDF]

open access: yes, 2009
Brevetoxin A is a decacyclic ladder toxin that possesses five-,six-, seven-, eight-, and nine-membered oxacycles, as well as 22 tetrahedral stereocenters.
Kyle A. Emmitte   +13 more
core   +1 more source

A Highly Convergent Approach to Brevetoxin A [PDF]

open access: yes, 2007
Through optimized, scaled-up routes to the G and J rings of brevetoxin A, a convergent strategy based upon a Horner-Wadsworth-Emmons coupling reaction completed the GHIJ fragment.
Zuccarello, J. Lucas
core   +1 more source

Convergent, Stereoselective Synthesis of the GHIJ Fragment of Brevetoxin A

open access: yes, 2016
A stereoselective synthesis of the GHIJ fragment of brevetoxin A utilizing a convergent assembly strategy is described. Glycolate alkylation, ring-closing metathesis, and Hosomi−Sakurai reactions were central operations in the construction of the G ring ...
Michael T. Crimmins (1317639)   +3 more
core   +2 more sources

Seasonal Single-Site Sampling Reveals Large Diversity of Marine Algal Toxins in Coastal Waters and Shellfish of New Caledonia (Southwestern Pacific)

open access: yesToxins, 2023
Algal toxins pose a serious threat to human and coastal ecosystem health, even if their potential impacts are poorly documented in New Caledonia (NC).
Manoëlla Sibat   +5 more
doaj   +1 more source

Fusing Multi‐ and Hyperspectral Satellite Data for Harmful Algal Bloom Monitoring With Self‐Supervised and Hierarchical Deep Learning

open access: yesEarth and Space Science, Volume 13, Issue 5, May 2026.
Abstract We present a self‐supervised machine learning framework for detecting and mapping the severity and speciation of harmful algal blooms (HABs) using multi‐sensor satellite data. By fusing reflectance data from operational polar‐orbiting satellite‐based instruments (VIIRS, MODIS, OLCI, and OCI) with TROPOMI solar‐induced fluorescence (SIF), our ...
Nicholas J. LaHaye   +2 more
wiley   +1 more source

Ladder-Shaped Ion Channel Ligands: Current State of Knowledge

open access: yesMarine Drugs, 2017
Ciguatoxins (CTX) and brevetoxins (BTX) are polycyclic ethereal compounds biosynthesized by the worldwide distributed planktonic and epibenthic dinoflagellates of Gambierdiscus and Karenia genera, correspondingly.
Yuri B. Shmukler, Denis A. Nikishin
doaj   +1 more source

Chronic and punctuated changes in subtropical reef fish assemblages

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract Understanding temporal changes in marine biodiversity is crucial for managing and conserving reef ecosystems in the face of global environmental shifts. Although biodiversity changes at global and regional scales often differ, the role of subtropical systems in these patterns has been relatively understudied until recently.
Michael J. Schram   +6 more
wiley   +1 more source

Total Synthesis of Brevetoxin A [PDF]

open access: yes, 2009
A total synthesis of brevetoxin A is reported. Two tetracyclic coupling partners, prepared from previously reported advanced fragments, were effectively united via a Horner—Wittig olefination.
Zuccarello, J. Lucas   +6 more
core   +1 more source

Interaction of a dinoflagellate neurotoxin with voltage-activated ion channels in a marine diatom [PDF]

open access: yesPeerJ, 2018
Background The potent neurotoxins produced by the harmful algal bloom species Karenia brevis are activators of sodium voltage-gated channels (VGC) in animals, resulting in altered channel kinetics and membrane hyperexcitability.
Sheila A. Kitchen   +2 more
doaj   +2 more sources

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