Results 71 to 80 of about 79,429 (193)
, 2012 [[abstract]]Mimosa pudica is a perennial herb, it can be used as Chinese herbal medicine in Taiwan. Mimosa pudica are collected from several towns in Taiwan.We proposed by gas chromatography mass spectrometry (GC-MS) to detect Mimosa pudica whether ...
Lai, De-Hong
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The Inclusion of Pyrrolizidine Alkaloids by α- and β-Cyclodextrins
, 1994 The association constants of α- and β- cyclodextrins with several pyrrolizidine alkaloids have been determined at pH 1.5 and 9.2 by using competitive spectrophotometry and solubility studies, respectively.
N Anderton, JJ Gosper, C May
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Cytochrome P450-based toxicity research of Pyrrolizidine alkaloids
, 2007 Pyrrolizidine alkaloids were considered as the essential components in the toxicity of some composite plants. The previous study suggested that cytochrome P450 (CYPs)–mediated bioactivation and succedent formation of DNA adducts triggered toxicity of ...
张江伟 +5 more
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Pyrrolizidine alkaloids from Onosma leptantha
, 2003 Three new pyrrolizidine alkaloids, leptanthine (2), its corresponding N-oxide 1, and N-oxide of 3′-O-acetylechihumiline (3), were isolated from the aerial parts of Onosma leptantha, together with two known alkaloids of the same type, echihumiline (5) and
Aligiannis, N. +3 more
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Safety profile of a special butterbur extract from in migraine prevention with emphasis on the liver
Cephalalgia Reports, 2018 Background: Butterbur supplements are available in the USA and Canada and are commonly used for treating migraines. Petadolex, a special butterbur extract from Petasites hybridus, is a natural herbal product and the only butterbur extract with proven ...
HC Diener, FG Freitag, U Danesch
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Pyrrolizidine alkaloids from Cryptantha species
, 1993 In the first alkaloid investigation of the genus Cryptantha (Boraginaceae), pyrrolizidine alkaloids were identified from C. cana, C. clevelandii, C. confertiflora, C. flava, C. fendleri, C. leiocarpa, C. thyrsiflora, C. virgata and C. virginensis.
R. Stermitz, Frank +7 more
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Pyrrolizidine Alkaloids in and from the Austrian Alps
Natural Product Communications, 2015 The alkaloid content of Adenostyles alliariae and A. glabra (Asteraceae) has been evaluated. Both species contain toxic macrocyclic unsaturated pyrrolizidine alkaloids with seneciphylline as the main compound accounting for more than 90% of the alkaloid ...
Remigius Chizzola
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, 2011 [[abstract]]Heliotropium indicum L. (Boraginaceae) is used in folk medicine for the treatment of pneumonia, liver disease and ulcer. In the present study, we have investigated the hepatotoxic and tumorigenic pyrrolizidine alkaloids (PAs) contained in H ...
Wu, Hao-Yang
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Tropane alkaloids in food [PDF]
, 2010 A large number of wild and cultured plants produce secondary metabolites that are toxic to humans and animals. Through accidental or intentional mixing of these plants with normal food and feed the consumers of these products will be exposed to the ...
Adamse, P., Egmond, H.P., van
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Pyrrolizidine alkaloids: Hepatic metabolism and extrahepatic toxicity
, 1994 Pyrrolizidine alkaloids are proposed to be metabolized in the liver to reactive pyrrole species, or dehydroalkaloids. These reactive pyrroles are hypothesized to be responsible for pyrrolizidine alkaloid toxicity.
Wild, Stacie Lynn.
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