Results 121 to 130 of about 735 (162)

Avaliação do efeito de microalgas nocivas e ficotoxinas em hemócitos de ostras do pacífico Crassostrea gigas [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Bioquímica, Florianópolis, 2012Os hemócitos são responsáveis por mediar uma série de reações imunológicas essenciais para a ...
Mello, Danielle Ferraz
core  

Effects of Four Marine Toxins on Murine Hepatic Biotransformation Enzymes

Toxins
This study assesses the impact of sublethal levels of four marine toxins ciguatoxin (CTX-1), maitotoxin-2 (MTX-2), saxitoxin (STX) and brevetoxin-2 (BTX-2) on murine hepatic detoxification enzymes expressed in mouse liver.
Joanna Soto de Jesus, Carmen González-Keelan, Peter A. Meléndez, Carmen L. Cadilla, Jasmine Contreras, Braulio D. Jiménez-Vélez   +5 more
doaj   +1 more source

Sodium-dependent increase in quantal secretion induced by brevetoxin-3 in Ca2+-free medium is associated with depletion of synaptic vesicles and swelling of motor nerve terminals in situ

, 1997
Brevetoxin-3 at nanomolar concentrations markedly enhanced spontaneous quantal transmitter release from neuromuscular junctions equilibrated in a Ca2+-free EGTA medium. After about 3 h, the sustained increase in miniature endplate potential frequency led
Colasante, C, Meunier, FA, Molgo, J
core   +1 more source

Brevetoxin concentrations in various sample types from stranded bottlenose dolphins in the 2005/2006 UME.

, 2012
Values (mean calculations of all available assay data) are reported in ng brevetoxin-3 equiv./g or ng/mL. Data are median, quartile, and minimum/maximum values indicated by the midline, box, and whisker lines; respectively.
Joseph K. Gaydos (142699), Zhihong Wang (142713), Christine K. Johnson (142701), Jan H. Landsberg (22004), Lori Schwacke (29493), Sabrina R. Bowen-Stevens (142694), Teresa K. Rowles (142717), Michael J. Twiner (142684), Tod A. Leighfield (22017), Spencer E. Fire (142689), Blair Mase-Guthrie (142707), Leanne J. Flewelling (22010), Frances M. Van Dolah (22016)   +12 more
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Inhalation Toxicity of Brevetoxin 3 in Rats Exposed for Twenty-Two Days-0

, 2011
Copyright information:Taken from "Inhalation Toxicity of Brevetoxin 3 in Rats Exposed for Twenty-Two Days"Environmental Health Perspectives 2005;113(5):626-631.Published online 9 Feb 2005PMCID:PMC1257559.This is an Open Access article: verbatim copying ...
Jacob D. McDonald (21439), Gregory D. Bossart (71747), Thomas H. March (71743), Julia Zaias (71746), Janet M. Benson (71741), Mohan J. Sopori (71745), Daniel G. Baden (71736), Fletcher F. Hahn (71742), Andrea J. Bourdelais (71737), Jerome Naar (71740), Andrea P. Gomez (71744)   +10 more
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The structure and mode of action of the dinoflagellate toxins

Iranian South Medical Journal, 2016
Background: Dinoflagellates are the major causative agents of harmful algal blooms. In different studies, it has been shown that many dinoflagellate species produce various natural toxins.
Akram Najafi, Iraj Nabipour
doaj  

Neurotoxic Shellfish Poisoning

Marine Drugs, 2008
Neurotoxic shellfish poisoning (NSP) is caused by consumption of molluscan shellfish contaminated with brevetoxins primarily produced by the dinoflagellate, Karenia brevis. Blooms of K.
Roberta Hammond, Lora E. Fleming, Andrew Reich, Sharon M. Watkins   +3 more
doaj  

A Highly Convergent Approach to Brevetoxin A [PDF]

Organic Letters, 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. Further studies toward an alternative protecting group strategy for the GHIJ fragment elucidated a shortened synthesis.
Michael T, Crimmins, J Lucas, Zuccarello, Pamela A, Cleary, Jonathan D, Parrish   +3 more
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Total synthesis of brevetoxin A

Nature, 1998
Brevetoxin A is the most potent neurotoxin secreted by Gymnodinium breve Davis, a marine organism often associated with harmful algal blooms known as 'red tides'. The compound, whose mechanism of action involves binding to and opening of sodium channels, is sufficiently toxic to kill fish at concentrations of nanograms per ml and, after accumulation in
K C, Nicolaou, Z, Yang, G, Shi, J L, Gunzner, K A, Agrios, P, Gärtner   +5 more
openaire   +4 more sources

Antibodies to brevetoxin B: Serologic differentiation of brevetoxin B and brevetoxin A

Toxicon, 1992
A brevetoxin B immunogen was prepared by reacting brevetoxin B with the amino groups of bovine albumin followed by treatment with sodium borohydride. Immunized rabbits produced antibodies that bound [3H]brevetoxin B-alcohol. This binding increased with repeated immunization (KD for one rabbit after three courses of immunization was about 10 pM ...
L, Levine, Y, Shimizu
openaire   +2 more sources