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Structure-activity relationship and classification of flavonoids as inhibitors of xanthine oxidase and superoxide scavengers.
The structure-activity relationship of flavonoids as inhibitors of xanthine oxidase and as scavengers of the superoxide radical, produced by the action of the enzyme xanthines oxidase, was investigated and showed slightly higher inhibitory activity than flavonols. Expand
Correlation between chemical composition and antibacterial activity of essential oils of some aromatic medicinal plants growing in the Democratic Republic of Congo.
The chemical composition of essential oils from 15 aromatic medicinal plant species growing in the Democratic Republic of Congo have been studied and results indicate that all essential oils inhibited the growth of selected bacteria at different extents. Expand
In vitro antiplasmodial activity of extracts and fractions from seven medicinal plants used in the Democratic Republic of Congo.
The in vitro antiplasmodial activity of seven EtOH extracts and twenty fractions from the partition of the initial ethanolic extracts from seven African medicinal plants used in the Democratic Republic of Congo was evaluated and may be related to the presence of terpenes, steroids, coumarins, flavonoids, phenolic acids, lignans, xanthones and anthraquinones. Expand
Antimalarial activity of 20 crude extracts from nine African medicinal plants used in Kinshasa, Congo.
Twenty extracts including ten EtOH and ten CH2Cl2 from different parts of nine African medicinal plants used in Congolese traditional medicine for the treatment of malaria, were submitted to aExpand
Plant-derived leading compounds for chemotherapy of human immunodeficiency virus (HIV) infection.
Many compounds of plant origin that inhibit different stages in the replication cycle of human immunodeficiency virus (HIV) have been identified and only a very few of these plant-derived anti-HIV products have been used in a limited number of patients suffering from AIDS. Expand
Phytoestrogens: recent developments.
Since phytoestrogens are structurally very similar to the estrogen 17beta-estradiol, they may exhibit selective estrogen receptor modulating activities, and special attention will be given to the hormonal effects of various isoflavonoids, including genistein, daidzein, coumestrol and equol, several prenylated flavonoid, especially 8-prenylnaringenin, and the stilbene resveratrol. Expand
Further evaluation of Rwandan medicinal plant extracts for their antimicrobial and antiviral activities.
Only Clematis hirsuta (leaves) showed a pronounced antifungal activity against Candida albicans and the dermatophytes Trichophyton rubrum, Epidermophyton floccosum, and Microsporum canis, while some plant extracts showed an antibacterial activity against Gram-positive bacteria and Mycobacterium fortuitum, but none of them were active against the Gram-negative bacteria tested. Expand
Antiamoebic and spasmolytic activities of extracts from some antidiarrhoeal traditional preparations used in Kinshasa, Congo.
Three major extracts from some traditional preparations, based on medicinal plants, used as antidiarrhoeal agents were investigated for their putative antiamoebic and spasmolytic activities in vitro.Expand
Condensed vegetable tannins: Biodiversity in structure and biological activities
The main biological and pharmacological effects reported for condensed tannins can be classified into antibacterial and antiviral activities, enzyme inhibition, anti-oxidative effects, antimutagenic and antitumoral properties, next to some more specific interactions e.g. with vascular and cardial systems and inflammation processes. Expand
In vitro antiprotozoal and cytotoxic activity of 33 ethonopharmacologically selected medicinal plants from Democratic Republic of Congo.
The antiprotozoal and cytotoxic activity of the aqueous extracts from 33 medicinal plants collected after an ethnopharmacological inventory can partly support and justify the traditional use of some of these plant species for the treatment of parasitic diseases. Expand