Abstract
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Malaria Journal |
| Vol/bind | 1 |
| Sider (fra-til) | 11 |
| ISSN | 1475-2875 |
| Status | Udgivet - 2002 |
Bibliografisk note
Keywords: ATP-Binding Cassette Transporters; Animals; Antimalarials; Chloroquine; Codon; Dihydropteroate Synthase; Drug Resistance; Drug Resistance, Multiple; Europe; Folic Acid Antagonists; Humans; Malaria, Falciparum; Membrane Proteins; Membrane Transport Proteins; Plasmodium falciparum; Point Mutation; Protozoan Proteins; Tetrahydrofolate Dehydrogenase; TravelCitationsformater
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I: Malaria Journal, Bind 1, 2002, s. 11.
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
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TY - JOUR
T1 - Molecular surveillance of drug resistance through imported isolates of Plasmodium falciparum in Europe
AU - Jelinek, Tomas
AU - Peyerl-Hoffmann, Gabriele
AU - Mühlberger, Nikolai
AU - Wichmann, Ole
AU - Wilhelm, Michael
AU - Schmider, Nadja
AU - Grobusch, Martin P
AU - von Sonnenburg, Frank
AU - Gascon, Joaquim
AU - Laferl, Hermann
AU - Hatz, Christoph
AU - Alifrangis, Michael
AU - Burchard, Gerd
AU - McWhinney, Paul
AU - Schulze, Marco
AU - Kollaritsch, Herwig
AU - da Cunha, Saraiva
AU - Beran, Jiri
AU - Kern, Peter
AU - Gjørup, Ida
AU - Cuadros, Juan
N1 - Keywords: ATP-Binding Cassette Transporters; Animals; Antimalarials; Chloroquine; Codon; Dihydropteroate Synthase; Drug Resistance; Drug Resistance, Multiple; Europe; Folic Acid Antagonists; Humans; Malaria, Falciparum; Membrane Proteins; Membrane Transport Proteins; Plasmodium falciparum; Point Mutation; Protozoan Proteins; Tetrahydrofolate Dehydrogenase; Travel
PY - 2002
Y1 - 2002
N2 - BACKGROUND: Results from numerous studies point convincingly to correlations between mutations at selected genes and phenotypic resistance to antimalarials in Plasmodium falciparum isolates. In order to move molecular assays for point mutations on resistance-related genes into the realm of applied tools for surveillance, we investigated a selection of P. falciparum isolates that were imported during the year 2001 into Europe to study the prevalence of resistance-associated point mutations at relevant codons. In particular, we tested for parasites which were developing resistance to antifolates and chloroquine. The screening results were used to map the prevalence of mutations and, thus, levels of potential drug resistance in endemic areas world-wide. RESULTS: 337 isolates have been tested so far. Prevalence of mutations that are associated with resistance to chloroquine on the pfcrt and pfmdr genes of P. falciparum was demonstrated at high levels. However, the prevalence of mutations associated with resistance to antifolates at the DHFR and DHPS genes was unexpectedly low, rarely exceeding 60% in endemic areas. CONCLUSIONS: Constant screening of imported isolates will enable TropNetEurop to establish a screening tool for emerging resistance in endemic areas.
AB - BACKGROUND: Results from numerous studies point convincingly to correlations between mutations at selected genes and phenotypic resistance to antimalarials in Plasmodium falciparum isolates. In order to move molecular assays for point mutations on resistance-related genes into the realm of applied tools for surveillance, we investigated a selection of P. falciparum isolates that were imported during the year 2001 into Europe to study the prevalence of resistance-associated point mutations at relevant codons. In particular, we tested for parasites which were developing resistance to antifolates and chloroquine. The screening results were used to map the prevalence of mutations and, thus, levels of potential drug resistance in endemic areas world-wide. RESULTS: 337 isolates have been tested so far. Prevalence of mutations that are associated with resistance to chloroquine on the pfcrt and pfmdr genes of P. falciparum was demonstrated at high levels. However, the prevalence of mutations associated with resistance to antifolates at the DHFR and DHPS genes was unexpectedly low, rarely exceeding 60% in endemic areas. CONCLUSIONS: Constant screening of imported isolates will enable TropNetEurop to establish a screening tool for emerging resistance in endemic areas.
M3 - Journal article
C2 - 12423552
SN - 1475-2875
VL - 1
SP - 11
JO - Malaria Journal
JF - Malaria Journal
ER -