Results 21 to 30 of about 1,214 (139)
Simultaneous Multiclass Analysis of Cyanotoxins in Cyanobacterial Samples Using Hydrophilic Interaction Liquid Chromatography-Tandem Mass Spectrometry. [PDF]
J Sep SciABSTRACT The proliferation of cyanobacteria can result in algal blooms, which may cause environmental and biological harm due to the production and release of secondary metabolites, or cyanotoxins, into the affected waterway. Cyanobacteria can produce multiple classes of cyanotoxins; therefore, to understand the full toxic load of algal blooms, it is ...
Bergin R +3 more
europepmc +2 more sources
Sensors, 2021 Saxitoxin (STX) belongs to the family of marine biological toxins, which are major contaminants in seafood. The reference methods for STX detection are mouse bioassay and chromatographic analysis, which are time-consuming, high costs, and requirement of ...
Najeeb Ullah +6 more
doaj +1 more source
4-Aminopyridine Reverses Saxitoxin (STX)- and Tetrodotoxin (TTX)-Induced Cardiorespiratory Depression in Chronically Instrumented Guinea Pigs [PDF]
Fundamental and Applied Toxicology, 1997 The extent to which cardiorespiratory infirmity and other sublethal effects of saxitoxin (STX) and tetrodotoxin (TTX) can be reversed by 4-aminopyridine (4-AP) was investigated in guinea pigs chronically instrumented for the concurrent electrophysiological recordings of electrocorticogram (ECoG), diaphragmatic electromyogram (DEMG), Lead II ...
F C, Chang +4 more
openaire +2 more sources
Synthesis of Saxitoxin Biosynthetic Intermediates: Reveal the Mechanism for Formation of its Tricyclic Skeleton in Biosynthesis. [PDF]
Chem Asian JSaxitoxin biosynthetic intermediate 7 and its 6‐epimer (10) along with 14 were synthesized from 13 in a single step, probably via aza‐Michael addition reaction. Compounds 7 and 10 were identified in the toxin‐producing cyanobacterium Dolichospernum circinale (TA04).
Hirozumi R +8 more
europepmc +2 more sources
Marine Drugs, 2021 Pacific oysters (Crassostrea gigas) may bio-accumulate high levels of paralytic shellfish toxins (PST) during harmful algal blooms of the genus Alexandrium. These blooms regularly occur in coastal waters, affecting oyster health and marketability.
Floriane Boullot +5 more
doaj +1 more source
Behavioral alterations induced by repeated saxitoxin exposure in drinking water
Journal of Venomous Animals and Toxins including Tropical Diseases, 2016 Background Blooms of the saxitoxin-producing cyanobacterium Cylindrospermopsis raciborskii have been contaminating drinking water reservoirs in Brazil for many years.
Felipe Diehl +4 more
doaj +1 more source
Marine Drugs, 2023 Harmful algal blooms (HABs) can produce a variety of noxious effects and, in some cases, the massive mortality of wild and farmed marine organisms. Some HAB species produce toxins that are released into seawater or transferred via food webs (particulate ...
Colleen Guinle +4 more
doaj +1 more source
Facile and Cost-Effective Detection of Saxitoxin Exploiting Aptamer Structural Switching
Food Technology and Biotechnology, 2015 A simple method to detect saxitoxin (STX), one of the main components of the paralytic shellfish poison from red tide, has been developed. By using a next generation dye for double-stranded DNA we were able to differentiate fluorescence from STX-binding ...
Karol Alfaro +3 more
doaj +1 more source
Marine Drugs, 2011 Fish detect extremely low levels of marine toxins tetrodotoxin (TTX) and saxitoxin (STX) via the specialized gustatory receptor(s). Physiological and pharmacological studies show that receptor(s) for TTX and STX are distinct from those which detect ...
Toshiaki J. Hara
doaj +1 more source
PLoS Neglected Tropical Diseases, 2020 The northeast (NE) region of Brazil commonly goes through drought periods, which favor cyanobacterial blooms, capable of producing neurotoxins with implications for human and animal health.
Carolina da S G Pedrosa +17 more
doaj +1 more source