ProCite
RefWorks
Reference Manager
BibTeX
Zotero
EndNote
-
1
Alker A, Mwapasa V, Meshnick SR, 2004. Rapid real-time PCR genotyping of mutations associated with sulfadoxine-pyrimethamine resistance in Plasmodium falciparum.Antimicrob Agents Chemother 48 :2924–2929.
-
2
Alker A, Mwapasa V, Purfield A, Rogerson SJ, Molyneux M, Kamwendo D, Tadesse E, Chaluluka E, Meshnick SR, 2005. Mutations Associated with sulfadoxine-pyrimethamine and chlorproguanil resistance in Plasmodium falciparum isolates from Blantyre, Malawi. Antimicrob Agents Chemother 49 :3919–3921.
-
3
Bwijo B, Kaneko A, Takechi M, Zungu IL, Moriyama Y, Lum LK, Tsukahara T, Mita T, Takahashi N, Bergqvist Y, Bjorkman A, Kobayakawa T, 2003. High Prevalence of quintuple mutant dhfr/dhps genes in Plasmodium falciparum infections seven years after introduction of sulfadoxine and pyrimethamine as first line treatment in Malawi. Acta Trop 85 :363–373.
-
4
Nkhoma S, Molyneux M, Ward S, 2007. Molecular surveillance for drug-resistant Plasmodium falciparum malaria in Malawi. Acta Trop 102 :138–142.
-
5
Kublin JG, Dzinjalamala FK, Kamwendo DD, Malkin EM, Cortese JF, Martino LM, Mukadam RA, Rogerson SJ, Lescano AG, Molyneux ME, Winstanley PA, Chimpeni P, Taylor TE, Plowe CV, 2002. Molecular markers for failure of sulfadoxine-pyrimethamine and chlorproguanil-dapsone treatment of Plasmodium falciparum malaria. J Infect Dis 185 :380–388.
-
6
Plowe CV, 2001. Folate antagonists and mechanisms of resistance. Rosenthal PJ, ed. Antimalarial Chemotherapy: Mechanisms of Action, Resistance, and New Directions in Drug Discovery. Totowa, NJ: Humana Press, 173–190.
-
7
Foote SJ, Galatis D, Cowman AF, 1990. Amino acids in the dihydrofolate reductase-thymidylate synthase gene of Plasmodium falciparum involved in cycloguanil resistance differ from those involved in pyrimethamine resistance. Proc Natl Acad Sci USA 87 :3014–3017.
-
8
Plowe CV, Cortese JF, Djimde A, Nwanyanwu OC, Watkins WM, Winstanley PA, Estrada-Franco JG, Mollinedo RE, Avila JC, Cespedes JL, Carter D, Doumbo OK, 1997. Mutations in Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase and epidemiologic patterns of pyrimethamine-sulfadoxine use and resistance. J Infect Dis 176 :1590–1596.
-
9
Sirawaraporn W, Sathitkul T, Sirawaraporn R, Yuthavong Y, Santi DV, 1997. Antifolate-resistant mutants of Plasmodium falciparum dihydrofolate reductase. Proc Natl Acad Sci USA 94 :1124–1129.
-
10
Krudsood S, Imwong M, Wilairatana P, Purkittayakamee S, Non-prasert A, Snounou G, White NJ, Looaresuwan S, 2005. Artesunate-dapsone-proguanil treatment of falciparum malaria: Genotypic determinants of therapeutic response. Trans R Soc Trop Med Hyg 99 :142–149.
-
11
Winstanley P, 2001. Chlorproguanil-dapsone (LAPDAP) for uncomplicated falciparum malaria. Trop Med Int Health 6 :952–954.
-
12
Kwiek JJ, Alker A, Wenink E, Chaponda M, Kalilani LV, Meshnick SR, 2007. Estimating true antimalarial efficacy by heteroduplex tracking assay in patients with complex Plasmodium falciparum infections. Antimicrob Agents Chemother 51 :521– 527.
-
13
Juliano JJ, Kwiek JJ, Cappell K, Mwapasa V, Meshnick SR, 2007. Minority-variant pfcrt K76T mutations and chloroquine resistance, Malawi. Emerg Infect Dis 13 :873–877.
-
14
Farnert A, Tengstam K, Palme IB, Bronner U, Lebbad M, Swedberg G, Bjorkman A, 2002. Polyclonal Plasmodium falciparum malaria in travelers and selection of antifolate mutations after proguanil prophylaxis. Am J Trop Med Hyg 66 :487–491.
-
15
Staedke SG, Sendagire H, Lamola S, Kamya MR, Dorsey G, Rosenthal PJ, 2004. Relationship between age, molecular markers, and response to sulphadoxine-pyrimethamine treatment in Kampala, Uganda. Trop Med Int Health 9 :624–629.
-
16
Kalilani L, Mofolo I, Chaponda M, Rogerson SJ, Alker AP, Kwiek JJ, Meshnick SR, 2007. A randomized controlled pilot trial of azithromycin or artesunate added to sulfadoxine-pyrimethamine as treatment for malaria in pregnant women. PLoS ONE 2 :e1166.
-
17
Mwapasa V, Rogerson SJ, Molyneux ME, Abrams ET, Kamwendo DD, Lema VM, Tadesse E, Chaluluka E, Wilson PE, Meshnick SR, 2004. The effect of Plasmodium falciparum malaria on peripheral and placental HIV-1 RNA concentrations in pregnant Malawian women. AIDS 18 :1051–1059.
-
18
Ngrenngarmlert W, Kwiek JJ, Kamwendo DD, Ritola K, Swanstrom R, Wongsrichanalai C, Miller RS, Ittarat W, Meshnick SR, 2005. Measuring allelic heterogeneity in Plasmodium falciparum by heteroduplex tracking assay. Am J Trop Med Hyg 72 :694–701.
-
19
Hastings MD, Bates SJ, Blackstone EA, Monks SM, Mutabingwa TK, Sibley CH, 2002. Highly pyrimethamine-resistant alleles of dihydrofolate reductase in isolates of Plasmodium falciparum from Tanzania. Trans R Soc Trop Med Hyg 96 :674–676.
-
20
Kamya MR, Gasasira AF, Achan J, Mebrahtu T, Ruel T, Kekitiinwa A, Charlebois ED, Rosenthal PJ, Havlir D, Dorsey G, 2007. Effects of trimethoprim-sulfamethoxazole and insecticide treated bednets on malaria among HIV-infected Ugandan children. AIDS 21 :2059–2066.
-
21
Maiga O, Djimde AA, Hubert V, Renard E, Aubouy A, Kironde F, Nsimba B, Koram K, Doumbo OK, Le Bras J, Clain J, 2007. A shared Asian origin of the triple-mutant dhfr allele in Plasmodium falciparum from sites across Africa. J Infect Dis 196 :165–172.
-
22
McCollum AM, Poe AC, Hamel M, Huber C, Zhou Z, Shi YP, Ouma P, Vulule J, Bloland P, Slutsker L, Barnwell JW, Udhayakumar V, Escalante AA, 2006. Antifolate resistance in Plasmodium falciparum: Multiple origins and identification of novel dhfr alleles. J Infect Dis 194 :189–197.
-
23
Menard D, Djalle D, Yapou F, Manirakiza A, Talarmin A, 2006. Frequency distribution of antimalarial drug-resistant alleles among isolates of Plasmodium falciparum in Bangui, Central African Republic. Am J Trop Med Hyg 74 :205–210.
-
24
Nzila A, Ochong E, Nduati E, Gilbert K, Winstanley P, Ward S, Marsh K, 2005. Why has the dihydrofolate reductase 164 mutation not consistently been found in Africa yet? Trans R Soc Trop Med Hyg 99 :341–346.
-
25
Jelinek T, Kilian AH, Curtis J, Duraisingh MT, Kabagambe G, von Sonnenburg F, Warhurst DC, 1999. Plasmodium falciparum: selection of serine108 of dihydrofolate reductase during treatment of uncomplicated malaria with co-trimoxazole in Ugandan children. Am J Trop Med Hyg 61 :125–130.
-
26
Sisowath C, Stromberg J, Martensson A, Msellem M, Obondo C, Bjorkman A, Gil JP, 2005. In vivo selection of Plasmodium falciparum pfmdr1 86N coding alleles by artemether-lumefantrine (Coartem). J Infect Dis 191 :1014–1017.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 203 | 181 | 11 |
| Full Text Views | 213 | 3 | 1 |
| PDF Downloads | 29 | 3 | 1 |
Detection of the Dihydrofolate Reductase–164L Mutation in Plasmodium falciparum Infections from Malawi by Heteroduplex Tracking Assay
Jonathan J. Juliano
Jonathan J. Juliano
Division of Infectious Diseases, University of North Carolina, School of Medicine, Chapel Hill, North Carolina; Department of Epidemiology, University of North Carolina, School of Public Health, Chapel Hill, North Carolina; Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi
Search for other papers by Jonathan J. Juliano in
Current site
Google Scholar
PubMed
Search for other papers by Jonathan J. Juliano in
Current site
Google Scholar
PubMed
Paul Trottman
Paul Trottman
Division of Infectious Diseases, University of North Carolina, School of Medicine, Chapel Hill, North Carolina; Department of Epidemiology, University of North Carolina, School of Public Health, Chapel Hill, North Carolina; Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi
Search for other papers by Paul Trottman in
Current site
Google Scholar
PubMed
Search for other papers by Paul Trottman in
Current site
Google Scholar
PubMed
Victor Mwapasa
Victor Mwapasa
Division of Infectious Diseases, University of North Carolina, School of Medicine, Chapel Hill, North Carolina; Department of Epidemiology, University of North Carolina, School of Public Health, Chapel Hill, North Carolina; Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi
Search for other papers by Victor Mwapasa in
Current site
Google Scholar
PubMed
Search for other papers by Victor Mwapasa in
Current site
Google Scholar
PubMed
Steven R. Meshnick
Steven R. Meshnick
Division of Infectious Diseases, University of North Carolina, School of Medicine, Chapel Hill, North Carolina; Department of Epidemiology, University of North Carolina, School of Public Health, Chapel Hill, North Carolina; Department of Community Health, College of Medicine, University of Malawi, Blantyre, Malawi
Search for other papers by Steven R. Meshnick in
Current site
Google Scholar
PubMed
Search for other papers by Steven R. Meshnick in
Current site
Google Scholar
PubMed
Standard polymerase chain reaction methods often cannot detect drug-resistance mutations in Plasmodium falciparum infections if the mutation is present in ≤ 20% of the parasites. A heteroduplex tracking assay was developed that can detect dihydrofolate reductase 164-L mutations in variants representing 1% of the parasites in an individual host. Using this assay, we confirmed the presence of the mutation in P. falciparum infections in Malawi.
Author Notes
ProCite
RefWorks
Reference Manager
BibTeX
Zotero
EndNote
-
1
Alker A, Mwapasa V, Meshnick SR, 2004. Rapid real-time PCR genotyping of mutations associated with sulfadoxine-pyrimethamine resistance in Plasmodium falciparum.Antimicrob Agents Chemother 48 :2924–2929.
-
2
Alker A, Mwapasa V, Purfield A, Rogerson SJ, Molyneux M, Kamwendo D, Tadesse E, Chaluluka E, Meshnick SR, 2005. Mutations Associated with sulfadoxine-pyrimethamine and chlorproguanil resistance in Plasmodium falciparum isolates from Blantyre, Malawi. Antimicrob Agents Chemother 49 :3919–3921.
-
3
Bwijo B, Kaneko A, Takechi M, Zungu IL, Moriyama Y, Lum LK, Tsukahara T, Mita T, Takahashi N, Bergqvist Y, Bjorkman A, Kobayakawa T, 2003. High Prevalence of quintuple mutant dhfr/dhps genes in Plasmodium falciparum infections seven years after introduction of sulfadoxine and pyrimethamine as first line treatment in Malawi. Acta Trop 85 :363–373.
-
4
Nkhoma S, Molyneux M, Ward S, 2007. Molecular surveillance for drug-resistant Plasmodium falciparum malaria in Malawi. Acta Trop 102 :138–142.
-
5
Kublin JG, Dzinjalamala FK, Kamwendo DD, Malkin EM, Cortese JF, Martino LM, Mukadam RA, Rogerson SJ, Lescano AG, Molyneux ME, Winstanley PA, Chimpeni P, Taylor TE, Plowe CV, 2002. Molecular markers for failure of sulfadoxine-pyrimethamine and chlorproguanil-dapsone treatment of Plasmodium falciparum malaria. J Infect Dis 185 :380–388.
-
6
Plowe CV, 2001. Folate antagonists and mechanisms of resistance. Rosenthal PJ, ed. Antimalarial Chemotherapy: Mechanisms of Action, Resistance, and New Directions in Drug Discovery. Totowa, NJ: Humana Press, 173–190.
-
7
Foote SJ, Galatis D, Cowman AF, 1990. Amino acids in the dihydrofolate reductase-thymidylate synthase gene of Plasmodium falciparum involved in cycloguanil resistance differ from those involved in pyrimethamine resistance. Proc Natl Acad Sci USA 87 :3014–3017.
-
8
Plowe CV, Cortese JF, Djimde A, Nwanyanwu OC, Watkins WM, Winstanley PA, Estrada-Franco JG, Mollinedo RE, Avila JC, Cespedes JL, Carter D, Doumbo OK, 1997. Mutations in Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase and epidemiologic patterns of pyrimethamine-sulfadoxine use and resistance. J Infect Dis 176 :1590–1596.
-
9
Sirawaraporn W, Sathitkul T, Sirawaraporn R, Yuthavong Y, Santi DV, 1997. Antifolate-resistant mutants of Plasmodium falciparum dihydrofolate reductase. Proc Natl Acad Sci USA 94 :1124–1129.
-
10
Krudsood S, Imwong M, Wilairatana P, Purkittayakamee S, Non-prasert A, Snounou G, White NJ, Looaresuwan S, 2005. Artesunate-dapsone-proguanil treatment of falciparum malaria: Genotypic determinants of therapeutic response. Trans R Soc Trop Med Hyg 99 :142–149.
-
11
Winstanley P, 2001. Chlorproguanil-dapsone (LAPDAP) for uncomplicated falciparum malaria. Trop Med Int Health 6 :952–954.
-
12
Kwiek JJ, Alker A, Wenink E, Chaponda M, Kalilani LV, Meshnick SR, 2007. Estimating true antimalarial efficacy by heteroduplex tracking assay in patients with complex Plasmodium falciparum infections. Antimicrob Agents Chemother 51 :521– 527.
-
13
Juliano JJ, Kwiek JJ, Cappell K, Mwapasa V, Meshnick SR, 2007. Minority-variant pfcrt K76T mutations and chloroquine resistance, Malawi. Emerg Infect Dis 13 :873–877.
-
14
Farnert A, Tengstam K, Palme IB, Bronner U, Lebbad M, Swedberg G, Bjorkman A, 2002. Polyclonal Plasmodium falciparum malaria in travelers and selection of antifolate mutations after proguanil prophylaxis. Am J Trop Med Hyg 66 :487–491.
-
15
Staedke SG, Sendagire H, Lamola S, Kamya MR, Dorsey G, Rosenthal PJ, 2004. Relationship between age, molecular markers, and response to sulphadoxine-pyrimethamine treatment in Kampala, Uganda. Trop Med Int Health 9 :624–629.
-
16
Kalilani L, Mofolo I, Chaponda M, Rogerson SJ, Alker AP, Kwiek JJ, Meshnick SR, 2007. A randomized controlled pilot trial of azithromycin or artesunate added to sulfadoxine-pyrimethamine as treatment for malaria in pregnant women. PLoS ONE 2 :e1166.
-
17
Mwapasa V, Rogerson SJ, Molyneux ME, Abrams ET, Kamwendo DD, Lema VM, Tadesse E, Chaluluka E, Wilson PE, Meshnick SR, 2004. The effect of Plasmodium falciparum malaria on peripheral and placental HIV-1 RNA concentrations in pregnant Malawian women. AIDS 18 :1051–1059.
-
18
Ngrenngarmlert W, Kwiek JJ, Kamwendo DD, Ritola K, Swanstrom R, Wongsrichanalai C, Miller RS, Ittarat W, Meshnick SR, 2005. Measuring allelic heterogeneity in Plasmodium falciparum by heteroduplex tracking assay. Am J Trop Med Hyg 72 :694–701.
-
19
Hastings MD, Bates SJ, Blackstone EA, Monks SM, Mutabingwa TK, Sibley CH, 2002. Highly pyrimethamine-resistant alleles of dihydrofolate reductase in isolates of Plasmodium falciparum from Tanzania. Trans R Soc Trop Med Hyg 96 :674–676.
-
20
Kamya MR, Gasasira AF, Achan J, Mebrahtu T, Ruel T, Kekitiinwa A, Charlebois ED, Rosenthal PJ, Havlir D, Dorsey G, 2007. Effects of trimethoprim-sulfamethoxazole and insecticide treated bednets on malaria among HIV-infected Ugandan children. AIDS 21 :2059–2066.
-
21
Maiga O, Djimde AA, Hubert V, Renard E, Aubouy A, Kironde F, Nsimba B, Koram K, Doumbo OK, Le Bras J, Clain J, 2007. A shared Asian origin of the triple-mutant dhfr allele in Plasmodium falciparum from sites across Africa. J Infect Dis 196 :165–172.
-
22
McCollum AM, Poe AC, Hamel M, Huber C, Zhou Z, Shi YP, Ouma P, Vulule J, Bloland P, Slutsker L, Barnwell JW, Udhayakumar V, Escalante AA, 2006. Antifolate resistance in Plasmodium falciparum: Multiple origins and identification of novel dhfr alleles. J Infect Dis 194 :189–197.
-
23
Menard D, Djalle D, Yapou F, Manirakiza A, Talarmin A, 2006. Frequency distribution of antimalarial drug-resistant alleles among isolates of Plasmodium falciparum in Bangui, Central African Republic. Am J Trop Med Hyg 74 :205–210.
-
24
Nzila A, Ochong E, Nduati E, Gilbert K, Winstanley P, Ward S, Marsh K, 2005. Why has the dihydrofolate reductase 164 mutation not consistently been found in Africa yet? Trans R Soc Trop Med Hyg 99 :341–346.
-
25
Jelinek T, Kilian AH, Curtis J, Duraisingh MT, Kabagambe G, von Sonnenburg F, Warhurst DC, 1999. Plasmodium falciparum: selection of serine108 of dihydrofolate reductase during treatment of uncomplicated malaria with co-trimoxazole in Ugandan children. Am J Trop Med Hyg 61 :125–130.
-
26
Sisowath C, Stromberg J, Martensson A, Msellem M, Obondo C, Bjorkman A, Gil JP, 2005. In vivo selection of Plasmodium falciparum pfmdr1 86N coding alleles by artemether-lumefantrine (Coartem). J Infect Dis 191 :1014–1017.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 203 | 181 | 11 |
| Full Text Views | 213 | 3 | 1 |
| PDF Downloads | 29 | 3 | 1 |