M. Haag-Berrurier

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Haitian empirical medicine sprang from both European (16th to 19th century) and African (especially voodoo) traditional therapies. The use of medicinal herbs is highly developed. Our purpose was to list the plants held to be antifertility agents in the island. We identified about twenty species more or less currently used by the women as abortifacients or(More)
Ginkgo biloba extract is known to be efficient in diseases associated with free radical generation. The purpose of this work was to study, under in vitro conditions, the action ofGinkgo biloba extract (Gbe) against superoxide anion ( $$O_{2^{\bar .} }$$ ), which is directly or indirectly implicated in cell damage. Gbe appears to have both an $$O_{2^{\bar .}(More)
Two new saponins were isolated from Mimosa tenuiflora and their structures established as 3-O-[alpha-L-rhamnopyranosyl(1----2)-beta-D-glucopyranosyl-(1----3]-(alp ha-L- arabinopyranosyl-(1----4]-beta-D-xylopyranosyl-(1----2)]-[beta-D- xylopyranosyl-(1----4)]-beta-D-glucopyranosyl)-28-O-alpha-L-rhamnopyrano syl oleanolic acid and(More)
An HPLC method for the separation and the quantitative determination of flavonol glycosides, acylflavonol glycosides, and biflavones in crude leaf extracts from GINKGO BILOBA is described. The results, expressed in percentage of rutine, kaempferol P-coumaroyl glucorhamnoside, and bilobetin showed a higher amount of acylflavonol glycosides in buds, of(More)
The antagonistic activity of various thiol compounds versus the cytotoxic effects of valtrate and didrovaltrate has been evaluated on cultured hepatoma cells. Compounds with free SH groups like cysteine, mercaptoethanol, dithioerythritol, and glutathione were able to suppress the cytotoxicity of the valepotriates in a dose-dependent way, whereas compounds(More)