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oleandrigenin/nerium
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12 resultados
Inhibition of Na,K-ATPase by oleandrin and oleandrigenin, and their detection by digoxin immunoassays.
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Ingestion of oleander plant, containing the cardiac glycoside oleandrin, has been reported to induce fatal poisonings. Derivatives of oleandrin are structurally similar to digoxin. We investigated the cross-reactivities of oleandrin and its aglycone metabolite, oleandrigenin, in several commercially
Interference of oleandrin and oleandrigenin in digitoxin immunoassays: minimal cross reactivity with a new monoclonal chemiluminescent assay and high cross reactivity with the fluorescence polarization assay.
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Toxicity from ingestion of the oleander plant is common. Oleandrin, the oleander glycoside, has structural similarity to cardiac glycoside digoxin and is known to cross react with various digoxin immunoassays. The authors studied the cross reactivity of oleandrin and its deglycosylated congener
Synthesis and evaluation of cytotoxic and Na+/K+-ATP-ase inhibitory activity of selected 5α-oleandrigenin derivatives.
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Oleandrin, the major biologically active constituent of shrub Nerium oleander preparations of which have been used in traditional Mediterranean and Asian medicine, attracts a great deal of attention due to its pronounced anticancer activity. The synthesis of oleandrigenin model,
In vitro study of the effectiveness of three commercial adsorbents for binding oleander toxins.
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BACKGROUND
Oleander (Nerium oleander) poisoning is a common problem found in many parts of the world. The oleander toxicity is due to oleandrin and its aglycone metabolite oleandrigenin. Activated charcoal is a useful gastrointestinal decontamination agent that limits the absorption of ingested
Murine pharmacokinetics and metabolism of oleandrin, a cytotoxic component of Nerium oleander.
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Pharmacokinetic studies of [3H]oleandrin, a cardiac glycoside component of Anvirzel, were conducted in mice after either an i.v. dose (40 micrograms/kg) or a p.o. dose (80 micrograms/kg). Oleandrin was rapidly absorbed after oral dosing (Cmax at 20 min) although the elimination half-life was longer
Simultaneous determination of cardenolides by sonic spray ionization liquid chromatography-ion trap mass spectrometry--a fatal case of oleander poisoning.
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Simultaneous determination of oleandrin and its three related compounds, desacetyloleandrin, oleandrigenin, and gitoxigenin in blood by using liquid chromatography-three-dimensional quadrupole mass spectrometry (LC-3DQMS) system equipped with sonic spray ionization (SSI) interface was conducted.
Unexpectedly dangerous escargot stew: oleandrin poisoning through the alimentary chain.
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A female, aged 43 and a male, aged 66, experienced gastrointestinal and cardiovascular symptoms after a meal including snail stew. Twelve hours after the ingestion, they presented with nausea, vomiting, diarrhea, and cardiovascular symptoms typical of acute toxic digoxin ingestion and were
Glycosylation of cardenolide aglycones in the leaves of Nerium oleander.
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Application of [ (14)C]-progesterone to the leaves of NERIUM OLEANDER L. (Apocynaceae) resulted in the formation of [ (14)C]-digitoxigenin and [ (14)C]-oleandrigenin glycosides; the labelled aglycones were obtained after hydrolysis from the cardenolide extract. Both radioactive cardenolide aglycones
Biotransformation of 5βH-pregnan-3βol-20-one and cardenolides in cell suspension cultures of Nerium oleander L.
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In order to demonstrate enzyme activities playing a role in the biosynthesis of cardenolides and 2,6-dideoxysugars, 5βH-pregnan-3βol-20-one and cardenolides (digitoxigenin, oleandrigenin/L-oleandrose, oleandrin, neriifolin, digitoxigeninmonodigitoxoside and strospeside) were fed to cell suspension
Activated charcoal is effective but equilibrium dialysis is ineffective in removing oleander leaf extract and oleandrin from human serum: monitoring the effect by measuring apparent digoxin concentration.
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Accidental poisoning from oleander leaf or oleander tea can be life threatening. The authors studied the effectiveness of activated charcoal and equilibrium dialysis in removing oleander leaf extract and commercially available oleandrin as well as oleandrigenin, the active components of oleander
LC/MS/MS analyses of an oleander extract for cancer treatment.
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An HPLC/MS/MS method has been developed for the characterization and quantification of the cardiac glycosides oleandrin, odoroside, neritaloside and the aglycone oleandrigenin, all contained in a patented-hot-water extract of Nerium oleander L (Anvirzel). Qualitative analysis of such extracts was
Inhibition of export of fibroblast growth factor-2 (FGF-2) from the prostate cancer cell lines PC3 and DU145 by Anvirzel and its cardiac glycoside component, oleandrin.
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Anvirzel is an extract of Nerium oleander currently undergoing Phase I clinical evaluation as a potential treatment for cancer. Two of the active components of Anvirzel are the cardiac glycosides oleandrin and oleandrigenin. Previous studies have demonstrated that, in vitro, cardiac glycosides may
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