Potent antimalarial activity of the alkaloid nitidine, isolated from a Kenyan herbal remedy

Bioassay-guided fractionation of extracts of Toddalia asiatica, a plant used by the Pokot tribe of Kenya to treat fevers, has yielded the alkaloid nitidine as the major antimalarial component. Fractions containing nitidine have in vitro 50% inhibitory concentrations against Plasmodium falciparum in...

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Vydáno v:Antimicrobial agents and chemotherapy Ročník 39; číslo 12; s. 2606
Hlavní autoři: Gakunju, D M, Mberu, E K, Dossaji, S F, Gray, A I, Waigh, R D, Waterman, P G, Watkins, W M
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 01.12.1995
Témata:
Animals
Antimalarials - chemistry
Antimalarials - isolation & purification
Antimalarials - pharmacology
Benzophenanthridines
Biological Assay
Drug Resistance
Kenya
Mass Spectrometry
Phenanthridines - chemistry
Phenanthridines - isolation & purification
Phenanthridines - pharmacology
Plant Extracts - analysis
Plants, Medicinal - chemistry
Plasmodium falciparum - drug effects
Kenya
ISSN:0066-4804
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Shrnutí:Bioassay-guided fractionation of extracts of Toddalia asiatica, a plant used by the Pokot tribe of Kenya to treat fevers, has yielded the alkaloid nitidine as the major antimalarial component. Fractions containing nitidine have in vitro 50% inhibitory concentrations against Plasmodium falciparum in the range of 9 to 108 ng/ml for a range of chloroquine-susceptible and -resistant strains. The results show a lack of cross-resistance between chloroquine and nitidine.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0066-4804
DOI:10.1128/aac.39.12.2606