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ergotamine/raž
Odkaz sa uloží do schránky
Strana 1 od 38 výsledky
[Risks related to the use of ergotamine in the therapy of hemicrania. Description of a case].
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The ergotamine tartrate used for the migraine headache therapy can induce to a condition of chronic intoxication (ergotism) similar to what occurs after the ingestion of Claviceps purpurea contaminated rye. The case of an Italian woman affected by chronic migraine rectally treated with ergotamine
[Spurred rye alkaloids and synthetic ergotamines].
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[The occurrence of ergotamine in Spanish ergot of rye].
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Detection of Total Ergot Alkaloids in Cereal Flour and in Bread by a Generic Enzyme Immunoassay Method.
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Four sets of polyclonal antibodies against ergot alkaloids ergometrine, ergotamine, α-ergocryptine, and ergocornine were produced and characterized in a competitive direct or indirect enzyme immunoassay (EIA). Standard curve LODs were 0.03 ng/mL (ergometrine EIA) to 2.0 ng/mL (ergocornine EIA).
Determination of ergot alkaloids in rye and rye flour.
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An effective and timesaving analytical method was developed for the determination of 12 ergot alkaloids (ergometrine, ergotamine, ergocristine, α-ergokryptine, ergosine, ergocornine, and their respective -inine isomers) in rye and rye flour. Samples were extracted with dichloromethane/ethyl
Ricinoleic acid as a marker for ergot impurities in rye and rye products.
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Ergot alkaloid and ricinoleic acid contents of 63 ergot sclerotia samples from rye throughout Germany of the harvest years 2006-2009 were determined. Alkaloid contents were analyzed by means of high-performance liquid chromatography with fluorescence detection (HPLC-FLD) and ricinoleic acid contents
A basic tool for risk assessment: a new method for the analysis of ergot alkaloids in rye and selected rye products.
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As a basis for the collection of occurrence and exposure data of ergot alkaloids in food, an HPLC method coupled with fluorimetric detection (HPLC-FLD) for the determination of 12 pharmacologically active ergot alkaloids in rye and rye products was developed. Samples were extracted with a mixture of
Ergot alkaloids in some rye-based UK cereal products.
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UK rye-based cereal products were analysed for six major ergot alkaloids using an in-house-validated liquid chromatography-tandem mass spectrometry (LC-MS/MS) method that distinguished -ine and -inine epimers (isomers). Ergot alkaloids were detected in 25 of 28 samples subject to quantification
Ergot Alkaloids in Wheat and Rye Derived Products in Italy.
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Genus Claviceps is a plant pathogen able to produce a group of toxins, ergot alkaloids (EAs), whose effects have been known since the Middle Ages (ergotism). Claviceps purpurea is the most important representative specie, known to infect more than 400 monocotyledonous plants including
Ergot of rye-the first specific for migraine.
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Over the past decade the various triptan derivatives have been accepted as the most effective available agents for relieving migraine attacks. Prior to that, for a period of half a century, ergotamine was the only 'specific' available for this purpose. In 1918, Stoll had isolated it from the various
Quantitative determination of five ergot alkaloids in rye flour by liquid chromatography-electrospray ionisation tandem mass spectrometry.
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A confirmatory method for detecting five ergot alkaloids, ergocristine, ergotamine, ergonovine, ergocornine and alpha-ergokryptine, in rye flour is described using high performance liquid chromatography coupled to tandem mass spectrometry detection by monitoring two transition reactions per analyte.
Ergot alkaloids in rye flour determined by solid-phase cation-exchange and high-pressure liquid chromatography with fluorescence detection.
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Ergot alkaloids are mycotoxins that are undesirable contaminants of cereal products, particularly rye. A method was developed employing clean-up by cation-exchange solid-phase extraction, separation by high-performance liquid chromatography under alkaline conditions and fluorescence detection. It is
Variability in the content and composition of alkaloids found in Canadian ergot. I. Rye.
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The total alkaloid content and individual alkaloid composition were determined by colorimetry and high performance liquid chromatography, respectively, for Canadian rye ergot sclerotia. The total alkaloid content was highly variable between sclerotia from the same head, field, or region and ranged
[Effect of a hydrothermal treatment on ergot alkaloid content in ergot contaminated rye].
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Hydrothermal treatments are primarily used to increase the digestibility of nutrients and therefore to improve the feeding value of feedstuffs mainly for non-ruminants. Other positive side effects may occur, e.g. a decrease in toxicity of feed contaminated with mycotoxins. To study such effects, 4
Distribution of ergot alkaloids and ricinoleic acid in different milling fractions.
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The sclerotia of the fungus Claviceps sp. are still a challenge for the milling industry. Ergot sclerotia are a constant contamination of the rye crop and have to be removed by modern milling technologies. Changing sizes and coloration of the sclerotia make it difficult to separate them from the
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