Results 21 to 30 of about 2,024 (141)

Quantitation of diarrhetic shellfish poisoning toxins in Chilean Mussel using pyrenyldiazomethane as fluorescent labeling reagent [PDF]

Biological Research, 2003
Diarrhetic shellfish poisoning (DSP) is a gastrointestinal disease caused by lipid soluble polyether toxins produced by dinoflagellates and accumulated in shellfish.
CARLOS GARCÍA, PAULO PEREIRA, LUIS VALLE, NÉSTOR LAGOS   +3 more
doaj   +2 more sources

Apoptosis and Oxidative Stress in Human Intestinal Epithelial Caco-2 Cells Caused by Marine Phycotoxin Azaspiracid-2 [PDF]

Toxins
When humans consume seafood contaminated by lipophilic polyether phycotoxins, such as azaspiracids (AZAs), the toxins are mainly leached and absorbed in the small intestine, potentially causing intestinal damage.
Liye Zhao, Jiangbing Qiu, Jingrui Zhang, Aifeng Li, Guixiang Wang   +4 more
doaj   +2 more sources

Phylogeography and Diversity Among Populations of the Toxigenic Benthic Dinoflagellate Prorocentrum From Coastal Reef Systems in Mexico

Frontiers in Marine Science, 2021
The marine dinoflagellate genus Prorocentrum Ehrenberg comprises many species occupying primarily benthic or epiphytic habitats, particularly in tropical and sub-tropical waters.
Allan D. Cembella, Lorena M. Durán-Riveroll, Lorena M. Durán-Riveroll, Ulrike I. Tarazona-Janampa, Ulrike I. Tarazona-Janampa, Ulrike I. Tarazona-Janampa, Yuri B. Okolodkov, Ricardo García-Sandoval, Bernd Krock, Cora Hörstmann, Uwe John, Uwe John   +11 more
doaj   +1 more source

Gambierone and Sodium Channel Specific Bioactivity Are Associated with the Extracellular Metabolite Pool of the Marine Dinoflagellate Coolia palmyrensis

Marine Drugs, 2023
Tropical epibenthic dinoflagellate communities produce a plethora of bioactive secondary metabolites, including the toxins ciguatoxins (CTXs) and potentially gambierones, that can contaminate fishes, leading to ciguatera poisoning (CP) when consumed by ...
Alexander K. Leynse, Elizabeth M. Mudge, Andrew D. Turner, Benjamin H. Maskrey, Alison Robertson   +4 more
doaj   +1 more source

Associated Bacteria and Their Effects on Growth and Toxigenicity of the Dinoflagellate Prorocentrum lima Species Complex From Epibenthic Substrates Along Mexican Coasts

Frontiers in Marine Science, 2020
The dinoflagellate genus Prorocentrum is globally represented by a wide variety of species found upon benthic and/or epiphytic substrates. Many epibenthic Prorocentrum species produce lipophilic polyether toxins, some of which act as potent protein ...
Ulrike I. Tarazona-Janampa, Ulrike I. Tarazona-Janampa, Ulrike I. Tarazona-Janampa, Allan D. Cembella, María C. Pelayo-Zárate, María C. Pelayo-Zárate, Silvia Pajares, Laura M. Márquez-Valdelamar, Yuri B. Okolodkov, Jan Tebben, Bernd Krock, Lorena M. Durán-Riveroll, Lorena M. Durán-Riveroll   +12 more
doaj   +1 more source

Rapid Extraction and Identification of Maitotoxin and Ciguatoxin-Like Toxins from Caribbean and Pacific Gambierdiscus Using a New Functional Bioassay.

PLoS ONE, 2016
BackgroundCiguatera is a circumtropical disease produced by polyether sodium channel toxins (ciguatoxins) that enter the marine food chain and accumulate in otherwise edible fish.
Richard J Lewis, Marco Inserra, Irina Vetter, William C Holland, D Ransom Hardison, Patricia A Tester, R Wayne Litaker   +6 more
doaj   +1 more source

Solid phase extraction for removal of matrix effects in lipophilic marine toxin analysis by liquid chromatography-tandem mass spectrometry [PDF]

, 2009
The potential of solid phase extraction (SPE) clean-up has been assessed to reduce matrix effects (signal suppression or enhancement) in the liquid chromatography-tandem mass spectrometry (LC¿MS/MS) analysis of lipophilic marine toxins.
Boer, J., de, Bire, Ronel, Bire, R., de Boer, J., de Boer, J.; id_orcid, Jacob de Boer, Boer, J. de, Mulder, Patrick P. J., McElhinney, A. M., Hess, Philipp, McElhinney, M., Philipp Hess, Gerssen, A., Mairead A. McElhinney, Gerssen, Arjen, Ronel Bire, Arjen Gerssen, Bire, L., de Boer, Jacob, Patrick P. J. Mulder, Mulder, P.P.J., Hess, P., McElhinney, Mairead A.   +22 more
core   +1 more source

Fatty acid esters of azaspiracids identified in mussels (Mytilus edulis) using liquid chromatography-high resolution mass spectrometry

Toxicon: X, 2020
Azaspiracids (AZAs) are lipophilic polyether toxins produced by Azadinium and Amphidoma species of marine microalgae. The main dinoflagellate precursors AZA1 and AZA2 are metabolized by shellfish to produce an array of AZA analogues.
Elizabeth M. Mudge, Christopher O. Miles, William R. Hardstaff, Pearse McCarron   +3 more
doaj   +1 more source

Development of a New Monoclonal Antibody against Brevetoxins in Oyster Samples Based on the Indirect Competitive Enzyme-Linked Immunosorbent Assay

Foods, 2021
The consumption of shellfish contaminated with brevetoxins, a family of ladder-frame polyether toxins formed during blooms of the marine dinoflagellate Karenia brevis, can cause neurotoxic poisoning, leading to gastroenteritis and neurotoxic effects.
Xiya Zhang, Mingyue Ding, Chensi Zhang, Yexuan Mao, Youyi Wang, Peipei Li, Haiyang Jiang, Zhanhui Wang, Xuezhi Yu   +8 more
doaj   +1 more source

Radical Oxidative Cyclization of Spiroacetals to Bis-spiroacetals: An Overview

Molecules, 2004
The use of iodobenzene diacetate and iodine under photolytic conditions provides and efficient method for the oxidative cyclization of spiroacetals bearing an hydroxyalkyl side chain to bis-spiroacetals.
Margaret A. Brimble
doaj   +1 more source