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Anti-Helicobacter pylori activity of plants used in Mexican traditional medicine for gastrointestinal disorders.
AIM OF THE STUDY Helicobacter pylori is the major etiological agent of chronic active gastritis and peptic ulcer disease and is linked to gastric carcinoma. Treatment to eradicate the bacteria failedExpand
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Phytogrowth-inhibitory and antifungal constituents of Helianthella quinquenervis.
Investigation on the roots of Helianthella quinquenervis (Hook.) A. Gray (Asteraceae), led to the isolation of one new benzofuran (6-methoxy-tremetone (1)) and a new prenylacetophenoneExpand
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Antimycobacterial agents from selected Mexican medicinal plants
As part of the ICBG program Bioactive Agents from Dryland Biodiversity of Latin America, the present investigation was undertaken to explore the possible antimycobacterial potential of compoundsExpand
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Geranins C and D, additional new antiprotozoal A-type proanthocyanidins from Geranium niveum.
Two new additional A-type proanthocyanidins have been isolated from Geranium niveum. Their structures were determined by spectroscopic, chemical and chiroptical methods asExpand
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Antiinflammatory constituents from Heterotheca inuloides.
Three new compounds, cadalen-15-oic acid (1), 3,7-dihydroxy-3(4H)-isocadalen-4-one (2), and dicadalenol (3), were isolated from the aerial parts of Heterotheca inuloides (Mexican arnica), togetherExpand
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Bioactive oleanolic acid saponins and other constituents from the roots of Viguiera decurrens.
The bisdesmoside oleanolic acid saponin, 3-0-(methyl-beta-D-glucuronopyranosiduronoate)-28-0-beta-D-glucopyranosyl-oleanolate along with nine known compounds (two diterpenic acids, one chromene,Expand
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Geranins A and B, new antiprotozoal A-type proanthocyanidins from Geranium niveum.
Bioassay-guided fractionation of the antiprotozoal extract of Geranium niveum led to the isolation of two new A-type proanthocyanidins, epi-afzelechin-(4beta-->8, 2beta-->O-->7)-afzelechin (1) andExpand
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Antispasmodic activity of extracts and compounds of Acalypha phleoides Cav.
The aerial parts of Acalypha phleoides are usually prescribed in the Mexican traditional medicine for a variety of gastrointestinal complaints. The MeOH–CHCl3 (1:1) extract of the aerial part of A.Expand
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Vasoactive effects of aqueous extracts from five Mexican medicinal plants on isolated rat aorta.
The present investigation describes the effects of aqueous extracts from Chiranthodendron pentadactylon flowers, Galphimia glauca leaves and flowers, Ipomoea stans roots, Juglans regia leaves andExpand
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Somatic embryogenesis and organogenesis of Agave victoriae-reginae: Considerations for its conservation
Agave victoriae-reginae somatic embryos were produced through a callus phase from seedling stem segments cultured on MS medium. The optimal treatment was MS medium with 2.26 μM 2,4-D. Multiple shootExpand
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