podophyllotoxin/dichloromethane

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Improving the production of podophyllotoxin in hairy roots of Hyptis suaveolens induced from regenerated plantlets.

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Prijava / prijava

Ten Hyptis suaveolens hairy root lines were established by infecting nodal explants with K599+pGus-GFP+ and ATCC15834+pTDT strains from Agrobacterium rhizogenes. Genetic transformation was confirmed by epifluorescence and plagiotropic hairy root growth in absence of growth regulators. Cytotoxicity

Optimization of podophyllotoxin extraction method from Linum album cell cultures.

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Prijava / prijava

BACKGROUND Suspension cultures of Linum album Kotschy ex Boiss. (Linaceae) accumulate podophyllotoxin (an anticancer agent) and could therefore serve as an alternative source of this important aryltetralin lactone lignan. OBJECTIVE The present work compared four podophyllotoxin extraction methods

Synthesis of 4beta-amido and 4beta-sulphonamido analogues of podophyllotoxin as potential antitumour agents.

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Prijava / prijava

The new 4beta-amido analogues of podophyllotoxin or 4'-O-demethylepipodophyllotoxin have been prepared either by the coupling of 4beta-amino podophyllotoxin or 4beta-amino-4'-O-demethyl epipodophyllotoxin with the corresponding acids in presence of DCC in dichloromethane or by treating the

Biologically active components against Drosophila melanogaster from Podophyllum hexandrum.

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In the course of screening for novel naturally occurring insecticides from Chinese crude drugs, a dichloromethane extract of Podophyllum hexandrum was found to give an insecticidal activity against larvae of Drosophila melanogaster Meigen. From the extract, an insecticidal compound was isolated by

New Phenolics from Linum mucronatum subsp. orientale.

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BACKGROUND Lignans and flavonoids are widely distributed phenolics in the plant kingdom. Aryltetralin type lignans (podophyllotoxin derivatives) as the major secondary metabolites of Linum species play an important role in the production of chemotherapy drugs. In the present study, lignans and

[Studies on the TLC scanning determination of lignans in Diphylleia sinensis Li].

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Prijava / prijava

A simple, sensitive and accurate method for the separation and determination of the lignans: podophylltoxone (I), isopicropodophyllone (II), picropodophyllone (III), dehydropodophyllotoxin (IV), picropodophyllin (V), podophyllotoxin (VI), 4'-demethylpodophyllotoxin (VII) and diphyllin (VIII) is

[HPLC determination of 4-[4"-(2",2",6",6"-tetramethyl-1"-piperidinyloxy) amino]-4'-demethylepipodophyllotoxin in rat plasma and studies of its pharmacokinetics].

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Prijava / prijava

4-[4"-(2",2",6",6"-tetramethyl-1"-piperidinyloxy) amino]-4'- demethylepipodophyllotoxin (GP-7) is a new podophyllotoxin spin-labeled derivative. Its primary effect is the antitumor activity on transplanted mouse tumors and cultured tumor cells. This paper describes a method for its determination

INDUCTION OF CELL CYCLE ARREST AND APOPTOSIS BY ORMENIS ERIOLEPIS A MORROCAN ENDEMIC PLANT IN VARIOUS HUMAN CANCER CELL LINES.

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Prijava / prijava

BACKGROUND Ormenis eriolepis Coss (Asteraceae) is an endemic Moroccan subspecies, traditionally named "Hellala" or "Fergoga". It's usually used for its hypoglycemic effect as well as for the treatment of stomacal pain. As far as we know, there is no scientific exploration of anti tumoral activity of

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