Results 71 to 80 of about 1,190 (207)
Convergent Synthesis and Biological Activity of the WXYZA′B′C′ Ring System of Maitotoxin
The WXYZA′B′C′ ring system (1) of maitotoxin (MTX) was synthesized in a convergent manner via successive coupling of the W, Z, and C′ ring fragments through construction of the XY and A′B′ ring systems.
Futoshi Hasegawa (2112709) +5 more
core +2 more sources
Maitotoxin, a Ca2+ channel activator candidate.
Effects of maitotoxin, the most potent marine toxin, were studied using a rat pheochromocytoma cell line, PC12h. A low concentration (10(-8) g/ml) of maitotoxin induced a profound increase in CA2+ influx into PC12h cells and the Ca2+-dependent release of [3H]norepinephrine from them.
M, Takahashi, Y, Ohizumi, T, Yasumoto
openaire +2 more sources
Synthetic Studies on Maitotoxin. 3. Stereoselective Synthesis of the BCDE-Ring System
The stereoselective synthesis of the BCDE-ring system of maitotoxin has been accomplished through a two-directional strategy for the construction of polycyclic ether.
Tadashi Nakata (2103187) +2 more
core +2 more sources
Synthesis of the QRSTU Domain of Maitotoxin and Its 85-epi- and 86-epi-Diastereoisomers
A devised synthetic strategy toward the QRSTU ring system 4 of the marine-derived biotoxin maitotoxin (1) delivered, in addition to 4, its diastereoisomers 85-epi-QRSTU and 86-epi-QRSTU ring systems 5 and 6.
Taiki Umezawa (2008570) +4 more
core +1 more source
Synthesis and Biological Activity of the C′D′E′F′ Ring System of Maitotoxin
Stereoselective synthesis of the C′D′E′F′ ring system of maitotoxin was achieved starting from the E′ ring through successive formation of the D′ and C′ rings based on SmI2-mediated reductive cyclization.
Takahiro Oshima (81705) +6 more
core +1 more source
Gambierdiscus toxicus strains isolated from Australia and French Polynesia were grown in modified f2 and f10 nutrient media and the cells extracted for ciguatoxin and maitotoxin.
Lewis, Richard J. +5 more
core +1 more source
Calcium is permeable through a maitotoxin-activated nonselective cation channel in mouse L cells
The shellfish poison maitotoxin causes the irreversible opening of nonselective cation channels in mouse L cell fibroblasts, consistent with the action of this toxin in other cell types and the previously demonstrated existence of 28-pS voltage ...
M. Estacion, J. J. Gargus, H. B. Nguyen
core +1 more source
The stereoselective synthesis of the maitotoxin C′D′E′F′-ring system having a side chain has been accomplished through a convergent strategy. The key reactions include Horner-Wadsworth-Emmons coupling of the C′D′E′-ring and the side chain and subsequent ...
Tadashi Nakata (2103187) +3 more
core +2 more sources
Synthetic Studies on Maitotoxin. 2. Stereoselective Synthesis of the WXYZA′-Ring System
The stereoselective synthesis of the WXYZA′-ring system of maitotoxin has been accomplished via a linear synthetic approach, in which key reactions were SmI2-induced cyclization of β-alkoxyacrylate for the construction of the A′-, Y-, and X-rings and 6 ...
Tadashi Nakata (2103187) +3 more
core +1 more source
Neurotoxic Syndromes in Marine Poisonings a Review
Background: Marine neurotoxins as of Marine biotoxins are natural toxins that produced mainly by dinoflagellates, diatoms and several species of invertebrates and fish.
Gholam Hossein Mohebbi +2 more
doaj

