Objective: Febrifugine, a quinazoline alkaloid isolated from roots, shows powerful antimalarial Dichroa febrifuga activity against iparum. This review aimed to illustrate structural aspects of the naturally occurring Plasmodium falc febrifugine (1) and isofebrifugine (2) and how these issues were ultimately resolved by chemical synthesis. Materials and methods: Although the use of ferifugine as...

BACKGROUND Increasing resistance to first line antimalarial drugs led to a change in the antimalarial policy of Uganda in 2005. Successful implementation of this policy depends on changing prescribing patterns of health workers. OBJECTIVES To describe prescribing patterns for malaria and associated factors in a rural Ugandan hospital following a change in antimalarial treatment policy from ch...

Health care in malaria endemic areas of Africa is at a crucial tipping point. On the positive side, increased commitment to and funding for malaria control is leading to improved access to effective antimalarial drugs, with over the counter availability and extensive subsidies. However, current efforts do not yet adequately address the need for tools to diagnose malaria accurately and track its...

The shikimate pathway for aromatic biosynthesis presents a target for antimalarial drug development as this pathway is absent from animals. This study extends previous work on inhibitors of the shikimate pathway, by examining their interaction with the antimalarial drugs pyrimethamine and atovaquone. Combinations of atovaquone with several shikimate analogues exhibited synergistic effects. Thes...

A panel of sulfated oligosaccharides was tested for antimalarial activity and inhibition of adhesion to the placental malaria receptor chondroitin-4-sulfate (CSA). The heparan sulfate mimetic PI-88, currently undergoing phase II anticancer trials, displayed the greatest in vitro antimalarial activity against Plasmodium falciparum (50% inhibitory concentration of 7.4 microM) and demonstrated mod...

Abstract: A new series of plasmepsin II (PM II) inhibitors has been prepared based on 4-aminopiperidine-tert-butyl-carbamate (1). These compounds might be useful as antimalarial drugs acting via a new mechanism, and therefore be less susceptible to parasite resistance now often observed with current antimalarial therapies. Some of the final compounds prepared exhibited encouraging inhibitory ac...

We report here for the first time the in vitro localization of unlabeled antimalarial drugs with high spatial resolution. This strategy further enhances our understanding of the action mechanisms of antimalarial drugs. Our approach may be applied to a wide range of domains where quantitative chemical imaging of drugs at the sub-cellular level appears critical.

To determine risk for drug-resistant malaria parasites entering Madagascar from Comoros Islands, we screened travelers. For the 141 Plasmodium falciparum isolates detected by real-time PCR, frequency of mutant alleles of genes associated with resistance to chloroquine and pyrimethamine was high. International-level antimalarial policy and a regional antimalarial forum are needed.