A call for using natural compounds in the development of new antimalarial treatments-an introduction

被引:103
|
作者
Ginsburg, Hagai [1 ]
Deharo, Eric [2 ,3 ]
机构
[1] Hebrew Univ Jerusalem, Inst Life Sci, Dept Biol Chem, IL-91904 Jerusalem, Israel
[2] Univ Toulouse, UPS, Lab Pharmacochim Subst Nat & Pharmacophores Redox, UMR 152, F-31062 Toulouse 9, France
[3] Inst Rech Dev, UMR 152, Lima, Peru
关键词
PLASMODIUM-FALCIPARUM; PLANTS; PRODUCTS; MEDICINES; SYNERGY; AGENTS; ETHNOPHARMACOLOGY; ARTEMISININ; COMBINATION; FLAVONOIDS;
D O I
10.1186/1475-2875-10-S1-S1
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Natural compounds, mostly from plants, have been the mainstay of traditional medicine for thousands of years. They have also been the source of lead compounds for modern medicine, but the extent of mining of natural compounds for such leads decreased during the second half of the 20(th) century. The advantage of natural compounds for the development of drugs derives from their innate affinity for biological receptors. Natural compounds have provided the best anti-malarials known to date. Recent surveys have identified many extracts of various organisms (mostly plants) as having antiplasmodial activity. Huge libraries of fractionated natural compounds have been screened with impressive hit rates. Importantly, many cases are known where the crude biological extract is more efficient pharmacologically than the most active purified compound from this extract. This could be due to synergism with other compounds present in the extract, that as such have no pharmacological activity. Indeed, such compounds are best screened by cell-based assay where all potential targets in the cell are probed and possible synergies identified. Traditional medicine uses crude extracts. These have often been shown to provide many concoctions that deal better with the overall disease condition than with the causative agent itself. Traditional medicines are used by similar to 80 % of Africans as a first response to ailment. Many of the traditional medicines have demonstrable anti-plasmodial activities. It is suggested that rigorous evaluation of traditional medicines involving controlled clinical trials in parallel with agronomical development for more reproducible levels of active compounds could improve the availability of drugs at an acceptable cost and a source of income in malaria endemic countries.
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页数:7
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