Results 41 to 50 of about 3,497 (175)
Transformation of a marine toxic polyether, okadaic acid. [PDF]
Natural okadaic acid 1 was transformed into the 7, 24, 27-tri-0-benzyl-l, 2-acetonide derivative (4) in a 66% overall yidd. The corresponding synthetic derivative (4) was identified with this authentic sample.
ICHIKAWA, Yoshiyasu +2 more
openaire +2 more sources
Dinophysis Toxins: Distribution, Fate in Shellfish and Impacts
Several planktonic dinoflagellate species of the genus Dinophysis produce one or two groups of lipophilic toxins: (i) okadaic acid (OA) and its derivatives, the dinophysistoxins (DTXs), and (ii) pectenotoxins (PTXs) [...]
Beatriz Reguera, Juan Blanco
doaj +1 more source
We present a novel proteolysis‐targeting chimera (PROTAC) system conjugated to lipoic acid gold nanoclusters (PLANC), designed to degrade pTau, regulate inflammatory signaling, and effectively traverse the blood‐brain barrier (BBB). PLANC degraded pTau at various phosphorylation sites, with mechanistic studies confirming proteasome‐mediated degradation
Sarah Nevins +9 more
wiley +1 more source
Numerous toxin-producing harmful algal (HAB) species occur in Florida's coastal waters. Exposure to these toxins has been shown to have sublethal effects in sea turtles.
Justin R. Perrault +5 more
doaj +1 more source
2D nanosheets, with large surface area, excellent optical/electrical properties, and high specificity, combine with lateral flow assay strips to enable rapid, readable detection, boosting the strips’ development and applications. Abstract Lateral flow assays (LFAs) are widely used for point‐of‐care diagnostics, but their detection capability remains ...
Weimin Xu +11 more
wiley +1 more source
Marine toxins and the cytoskeleton: okadaic acid and dinophysistoxins [PDF]
Okadaic acid (OA) and its analogs, the dinophysistoxins, are potent inhibitors of protein phosphatases 1 and 2A. This action is well known to cause diarrhea and gastrointestinal symptons when the toxins reach the digestive tract by ingestion of mollusks. A less well‐known effect of these group of toxins is their effect in the cytoskeleton.
Carmen, Vale, Luis M, Botana
openaire +2 more sources
Okadaic acid exerts a positive inotropic effect in cardiac preparations. We studied whether the positive inotropic effect of okadaic acid in cardiac preparations could be due to phosphatase inhibition and whether this inhibition affects the ...
A. M. Watanabe +6 more
core +1 more source
Oysters (Crassostrea virginica) were screened for 12 phycotoxins over two years in nearshore waters to collect baseline phycotoxin data and to determine prevalence of phycotoxin co-occurrence in the commercially and ecologically-relevant species.
Sarah K.D. Pease +12 more
doaj +1 more source
FIR irradiation enhances the physical association between Akt and PP2Ac in VSMCs, independent of the hyperthermal effect of FIR rays. The increased binding between Akt and PP2Ac induced by FIR irradiation facilitates the dephosphorylation of Akt at Ser473.
Na‐Young Lee +5 more
wiley +1 more source
Isoproterenol-induced dephosphorylation events in the presence of okadaic acid.
MEFs were pretreated with okadaic acid (1 μM) for 30 minutes and then were stimulated with isoproterenol (10 μM) for various times (0, 5, 10, 20, 30, or 60 minutes).
Steven M. Chan (493709) +3 more
core +1 more source

