veratramine/rak

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Identification and characterization of in vitro and in vivo metabolites of steroidal alkaloid veratramine.

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Prijava / prijava

Veratramine, a steroidal alkaloid originating from Veratrum nigrum L., has demonstrated distinct anti-tumor and anti-hypertension effects, however, its metabolism has rarely been explored. The objective of the current study was to provide a comprehensive investigation of its metabolic pathways. The

Gender-Dependent Pharmacokinetics of Veratramine in Rats: In Vivo and In Vitro Evidence.

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Prijava / prijava

Veratramine, a major alkaloid from Veratrum nigrum L., has distinct anti-tumor and anti-hypertension effects. Our previous study indicated that veratramine had severe toxicity toward male rats. In order to elucidate the underling mechanism, in vivo pharmacokinetic experiments and in vitro

Hedgehog antagonist cyclopamine isomerizes to less potent forms when acidified.

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Prijava / prijava

The effect of acid treatment of cyclopamine, a natural antagonist of the hedgehog (Hh) signaling pathway and a potential anti-cancer drug, has been studied. Previous reports have shown that under acidic conditions, as in the stomach, cyclopamine is less effective. Also, it has been stated that

Antitumor and antiplatelet activity of alkaloids from veratrum dahuricum.

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Prijava / prijava

Ten steroidal alkaloids - cyclopamine, veratramine, jervine, 3, 15-diangyloylgermine, 3-angyloylzygadenine, 3-veratroyl zygadenine, 15-veratroylgermine, germine, veratrosine and pseudojervine - from Veratrum dahuricum, together with the ethanol extract and total alkaloids, were evaluated for their

Antitumor activity of extracts and compounds from the rhizomes of Veratrum dahuricum.

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The antitumor activity of six extracts (ethanol extract, petroleum ether fraction, CHCl(3) fraction, ethyl acetate fraction, n-butanol fraction and total alkaloids) from the rhizomes of Veratrum dahuricum, and six compounds (veratramine (1), jervine (2), germine (3), veramitaline (4), veratrosine

Steroidal alkaloid variation in Veratrum californicum as determined by modern methods of analytical analysis.

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Prijava / prijava

Veratrum californicum is a rich source of steroidal alkaloids, many of which have proven to be antagonists of the Hedgehog (Hh) signaling pathway that becomes aberrant in over twenty types of cancer. These alkaloids first became known in the 1950's due to their teratogenic properties, which resulted

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