Results 21 to 30 of about 1,542 (206)

Cyanotoxins Occurrence in Portugal: A New Report on Their Recent Multiplication

Toxins, 2020
Historical reports show that in Portugal, cyanotoxins reports were mainly in the Center (cylindrospermopsins) and South (cylindrospermopsins, saxitoxins) regions of the country apart from the well distributed microcystins.
Cristiana Moreira, Cidália Gomes, Vitor Vasconcelos, Agostinho Antunes   +3 more
doaj   +1 more source

A Stereocontrolled Synthesis of (+)-Saxitoxin [PDF]

Journal of the American Chemical Society, 2011
A concise stereoselective total synthesis of (+)-saxitoxin is described. A silver(I)-initiated hydroamination cascade constructs the bicyclic guanidinium ion core from a alkynyl bisguanidine. This sequence creates two C-N bonds, one C-O bond, and three rings and forms a single stereoisomer in a single synthetic transformation.
Vasudev R, Bhonde, Ryan E, Looper
openaire   +2 more sources

The Saxitoxins

, 1990
Sherwood Hall, Gary Strichartz, E. Moczydlowski, A. Ravindran, P. B. Reichardt   +4 more
openaire   +2 more sources

Semiquantitation of Paralytic Shellfish Toxins by Hydrophilic Interaction Liquid Chromatography-Mass Spectrometry Using Relative Molar Response Factors

Toxins, 2020
Paralytic shellfish toxins (PSTs) are a complex class of analogs of the potent neurotoxin saxitoxin (STX). Since calibration standards are not available for many PSTs, including C-11 hydroxyl analogs called M-toxins, accurate quantitation by liquid ...
Jiangbing Qiu, Elliott J. Wright, Krista Thomas, Aifeng Li, Pearse McCarron, Daniel G. Beach   +5 more
doaj   +1 more source

First Toxicological Analysis of the Pufferfish Sphoeroides pachygaster Collected in Italian Waters (Strait of Sicily): Role of Citizens Science in Monitoring Toxic Marine Species

Animals, 2023
Pufferfish (Tetraodontidae) inhabiting the Mediterranean Sea may represent an emerging public health risk due to the possible accumulation of marine neurotoxins such as tetrodotoxin (TTXs) and saxitoxin (STXs) in their tissues.
Chiara Malloggi, Biagio Rizzo, Alice Giusti, Lisa Guardone, Laura Gasperetti, Sonia Dall’Ara, Andrea Armani   +6 more
doaj   +1 more source

Cation-Exchange Resin Applied to Paralytic Shellfish Toxins Depuration from Bivalves Exposed to Gymnodinium catenatum

Foods, 2023
The accumulation of marine biotoxins in shellfish and their consumption causes serious food safety problems, threatening human health and compromising the availability of protein-based food.
Joana F. Leal, Gabriel Bombo, Patrícia S. M. Amado, Hugo Pereira, Maria L. S. Cristiano   +4 more
doaj   +1 more source

The Common Sunstar Crossaster papposus—A Neurotoxic Starfish

Marine Drugs, 2021
Saxitoxins (STXs) are a family of potent neurotoxins produced naturally by certain species of phytoplankton and cyanobacteria which are extremely toxic to mammalian nervous systems.
Karl J. Dean, Ryan P. Alexander, Robert G. Hatfield, Adam M. Lewis, Lewis N. Coates, Tom Collin, Mickael Teixeira Alves, Vanessa Lee, Caroline Daumich, Ruth Hicks, Peter White, Krista M. Thomas, Jim R. Ellis, Andrew D. Turner   +13 more
doaj   +1 more source

Pyrodinium bahamense One the Most Significant Harmful Dinoflagellate in Mexico

Frontiers in Marine Science, 2019
Pyrodinium bahamense produces saxitoxins and can cause paralytic shellfish poisoning (PSP). This species has caused more human illnesses and fatalities than any other toxic dinoflagellate in Mexico.
Lourdes Morquecho
doaj   +1 more source

Analysis of highly polar marine biotoxins in seawater by hydrophilic interaction liquid chromatography coupled to high resolution mass spectrometry

MethodsX, 2021
The monitoring of marine biotoxins (MBTs) in seawater is presented as an alternative strategy to determine their presence and the possible implications in the ecosystem.
Cristina Bosch-Orea, Josep Sanchís, Marinella Farré   +2 more
doaj   +1 more source

Statewide Intensification of Harmful Algal Blooms Across California Lakes and Reservoirs. [PDF]

Geohealth
Abstract Monitoring cyanobacteria is crucial for assessing water quality, safeguarding public health, and understanding ecosystem dynamics impacted by harmful algal blooms. This study explores the potential of satellite remote sensing (SRS) to assess risks of cyanotoxin exposure in California's recreational waters from 2002 to 2011 and 2016 to 2023 ...
Barreto Martinez BN, Hestir EL, Beutel MW, Lee CM.   +3 more
europepmc   +2 more sources