heracleum mantegazzianum/krabbamein

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Studies on cancer chemoprevention by traditional folk medicines XXIV. Inhibitory effect of a coumarin derivative, 7-isopentenyloxycoumarin, against tumor-promotion.

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7-Isopentenyloxycoumarin (1) was isolated from Heracleum lanatum MICHX. (Umbelliferae). Compound 1 inhibited phospholipid metabolism and Epstein-Barr virus activation caused by a potent tumor promoter. In an in vivo experiment, topical application of 1 suppressed skin-tumor-formation induced by

Prenylated Coumarins from Heracleum stenopterum, Peucedanum praeruptorum, Clausena lansium, and Murraya paniculata.

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Four hitherto unknown prenylated coumarins, namely 6″-O-β-D-apiofuranosylapterin (1), 4'-O-isobutyroylpeguangxienin (2), 6-(3-methyl-2-oxobutyroyl)-7-methoxycoumarin (3), and 6-hydroxycoumurrayin (4), were isolated from the ethanol extract of Heracleum stenopterum, Peucedanum praeruptorum, Clausena

Antiproliferative constituents in Umbelliferae plants II. Screening for polyacetylenes in some Umbelliferae plants, and isolation of panaxynol and falcarindiol from the root of Heracleum moellendorffii.

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Methanol extracts of 36 samples of 21 Umbelliferae plants were screened for polyacetylenic compounds using the ELISA for panaxytriol, and their antiproliferative activity was checked by MTT assay using the tumor cell lines MK-1, HeLa and B16F10. The presence of antiproliferative polyacetylenes was

Composition and biological activities of hogweed [Heracleum sphondylium L. subsp. ternatum (Velen.) Brummitt] essential oil and its main components octyl acetate and octyl butyrate.

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The essential oil obtained from the fruits of hogweed (Heracleum sphondylium subsp. ternatum) growing in central Apennines (Italy) was analysed for chemical composition by gas chromatographic-flame ionisation detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The oil was composed

Biological activity and safety profile of the essential oil from fruits of Heracleum mantegazzianum Sommier & Levier (Apiaceae).

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A composition of essential oils obtained from Heracleum mantegazzianum (Apiaceae) was examined using a GC-MS method. n-Octyl acetate (19.92%), n-hexyl-2-methylbutanoate (10.84%), n-octanol (10.13%), n-octyl butanoate (8.88%), n-octyl-2-methylbutanoate (8.01%), n-hexyl acetate (7.11%), n-octyl

Effect of bergapten from Heracleum nepalense root on production of proinflammatory cytokines.

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In the present investigation, the anti-inflammatory activity of isolated bergapten from hydroalcoholic extract of Heracleum nepalense root was evaluated in vitro using human peripheral blood mononuclear cells (PBMCs). Bergapten exhibited significant inhibition of the production of pro-inflammatory

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