Results 31 to 40 of about 1,059 (150)

Exploring Toxins for Hunting SARS-CoV-2 Main Protease Inhibitors: Molecular Docking, Molecular Dynamics, Pharmacokinetic Properties, and Reactome Study

open access: yesPharmaceuticals, 2022
The main protease (Mpro) is a potential druggable target in SARS-CoV-2 replication. Herein, an in silico study was conducted to mine for Mpro inhibitors from toxin sources.
Mahmoud A. A. Ibrahim   +11 more
doaj   +1 more source

Harmful algae diversity from a coastal upwelling system detected by high-throughput sequencing

open access: yesFrontiers in Marine Science, 2023
IntroductionIn recent years, environmental DNA (eDNA) amplicon sequencing has been used to unveil plankton diversity in the field. Nevertheless, molecular methods, such as this, are rarely used in harmful algal bloom (HAB) monitoring programs, which ...
Raquel Ríos-Castro   +6 more
doaj   +1 more source

Studies on the immunosuppressive effects and detection of naturally-occuring toxins [PDF]

open access: yes, 2012
Episodes of toxin-producing phytoplankton occur worldwide, causing both animal and human fatalities. Toxicity occurs through consumption of phycotoxins, including azaspiracid, which accumulate in filter-feeding shellfish. Microcystins are hepatotoxins,
Stack, Edwina C.
core   +2 more sources

Synthetic and Computational Studies on the ABC Trioxadispiroketal Subunit of the Marine Biotoxin Azaspiracid-1

open access: yesNatural Product Communications, 2008
The trioxadispiroketal residue in the marine biotoxin azaspiracid-1, which exists in a configuration capable of exhibiting a double anomeric effect, is believed to be the thermodynamically most stable bis-spiroketal diastereomer.
Jialiang Li, Xiaohua Li, David R. Mootoo
doaj   +1 more source

Absorption and Effect of Azaspiracid-1 Over the Human Intestinal Barrier

open access: yesCellular Physiology and Biochemistry, 2017
Background: Azaspiracids (AZAs) are marine biotoxins produced by the dinoflagellates genera Azadinium and Amphidoma. These toxins cause azaspiracid poisoning (AZP), characterized by severe gastrointestinal illness in humans after the consumption of ...
Paula Abal   +6 more
doaj   +1 more source

A Screening Tool for the Direct Analysis of Marine and Freshwater Phycotoxins in Organic SPATT Extracts from the Chesapeake Bay

open access: yesToxins, 2020
Many detection methods for phycotoxins, bioactive compounds produced by harmful algae, focus on one compound or a class of related compounds. Multiple harmful algal species often co-occur in the environment, however, emphasizing the need to analyze for ...
Michelle D. Onofrio   +3 more
doaj   +1 more source

Marine Biotoxins in Whole and Processed Scallops from the Argentine Sea

open access: yesMarine Drugs, 2022
Harmful algal blooms are an increasing worldwide threat to the seafood industry and human health as a consequence of the natural production of biotoxins that can accumulate in shellfish.
Alejandra B. Goya   +8 more
doaj   +1 more source

LC-MS/MS method for the detection of multiple classes of shellfish toxins

open access: yesCzech Journal of Food Sciences, 2019
Marine shellfish toxins are seafood safety problems of global concern. Herein the analysis of six shellfish toxins, regulated by European Union, with one single run by LC-MS/MS with acidic mobile phase was developed.
Ling Jan Chiou   +2 more
doaj   +1 more source

Combined Effects of Lipophilic Phycotoxins (Okadaic Acid, Azapsiracid-1 and Yessotoxin) on Human Intestinal Cells Models

open access: yesToxins, 2016
Phycotoxins are monitored in seafood because they can cause food poisonings in humans. Phycotoxins do not only occur singly but also as mixtures in shellfish. The aim of this study was to evaluate the in vitro toxic interactions of binary combinations of
Pierre-Jean Ferron   +4 more
doaj   +1 more source

Total synthesis and confirmation of the revised structures of azaspiracid-2 and azaspiracid-3

open access: yes, 2006
The 39 steps: The recently proposed revised structures of azaspiracid-2 and -3 (see picture), the two most potent members of the azaspiracid family, have been confirmed through the total syntheses of the two compounds. These 39-step syntheses represent a
Nicolaou, K.   +4 more
core   +1 more source

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