Antiplasmodial volatile extracts from Cleistopholis patens Engler & Diels and Uvariastrum pierreanum Engl. (Engl. & Diels) (Annonaceae) growing in Cameroon

被引:24
作者
Boyom, Fabrice Fekam [1 ]
Ngouana, Vincent [1 ]
Kemgne, Eugenie Aimee Madiesse [1 ]
Zollo, Paul Henri Amvam [1 ]
Menut, Chantal [2 ]
Bessiere, Jean Marie [3 ]
Gut, Jiri [4 ]
Rosenthal, Philip Jon [4 ]
机构
[1] Univ Yaounde I, Fac Sci, Dept Biochem, Yaounde, Cameroon
[2] ENSCM, Lab Chim Biomol, UMR 5032, Montpellier, France
[3] ENSCM, Lab Phytochim, Montpellier, France
[4] Univ Calif San Francisco, Dept Med, Div Infect Dis, San Francisco, CA USA
关键词
VIVO ANTIMALARIAL ACTIVITY; PLASMODIUM-FALCIPARUM; ESSENTIAL OILS; PLANTS; COMPONENTS; GROWTH;
D O I
10.1007/s00436-010-2165-7
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
In a search for alternative treatment for malaria, plant-derived essential oils extracted from the stem barks and leaves of Cleistopholis patens and Uvariastrum pierreanum (Annonaceae) were evaluated in vitro for antiplasmodial activity against the W2 strain of Plasmodium falciparum. The oils were obtained from 500 g each of stem barks and leaves, respectively, by hydrodistillation, using a Clevenger-type apparatus with the following yields: 0.23% and 0.19% for C. patens and 0.1% and 0.3% for U. pierreanum (w/w relative to dried material weight). Analysis of 10% (v/v) oil in hexane by gas chromatography and mass spectrometry identified only terpenoids in the oils, with over 81% sesquiterpene hydrocarbons in C. patens extracts and U. pierreanum stem bark oil, while the leaf oil from the latter species was found to contain a majority of monoterpenes. For C. patens, the major components were alpha-copaene, delta-cadinene, and germacrene D for the stem bark oil and beta-caryophyllene, germacrene D, and germacrene B for the leaf oil. The stem bark oil of U. pierreanum was found to contain mainly beta-bisabolene and alpha-bisabolol, while alpha- and beta-pinenes were more abundant in the leaf extract. Concentrations of oils obtained by diluting 1-mg/mL stock solutions were tested against P. falciparum in culture. The oils were active, with IC50 values of 9.19 and 15.19 mu g/mL for the stem bark and leaf oils, respectively, of C. patens and 6.08 and 13.96 mu g/mL, respectively, for those from U. pierreanum. These results indicate that essential oils may offer a promising alternative for the development of new antimalarials.
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页码:1211 / 1217
页数:7
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