Molecular characterization of Plasmodium falciparum antifolate resistance markers in Thailand between 2008 and 2016

R Sugaram, K Suwannasin, C Kunasol, VB Mathema… - Malaria journal, 2020 - Springer
Background Resistance to anti-malarials is a major threat to the control and elimination of
malaria. Sulfadoxine–pyrimethamine (SP) anti-malarial treatment was used as a national …

Pyrimethamine-resistant dihydrofolate reductase enzymes of Plasmodium falciparum are not enzymatically compromised in vitro

CI Sandefur, JM Wooden, IK Quaye… - Molecular and …, 2007 - Elsevier
Plasmodium falciparum, the protozoan that causes the most lethal form of human malaria,
has been controlled principally by two safe, affordable drugs, chloroquine and sulfadoxine …

Mutations in Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase of isolates from the Amazon region of Brazil

KF Vasconcelos, CV Plowe, CJ Fontes… - Memorias do Instituto …, 2000 - SciELO Brasil
Since the late 1970s pyrimethamine-sulfadoxine (PS; FansidarTM Hoffman-LaRoche, Basel)
has been used as first line therapy for uncomplicated malaria in the Amazon basin …

Plasmodium falciparum Strains Harboring Dihydrofolate Reductase with the I164L Mutation Are Absent in Malawi and Zambia Even under Antifolate Drug Pressure

E Ochong, DJ Bell, DJ Johnson… - Antimicrobial agents …, 2008 - Am Soc Microbiol
The Plasmodium falciparum dihydrofolate reductase (PfDHFR) enzyme is the target of
pyrimethamine, a component of the antimalarial pyrimethamine-sulfadoxine. Resistance to …

Similar Trends of Pyrimethamine Resistance-Associated Mutations in Plasmodium vivax and P. falciparum

MT Alam, H Bora, PK Bharti, MA Saifi… - Antimicrobial agents …, 2007 - Am Soc Microbiol
The antifolate drugs sulfadoxine and pyrimethamine are commonly used to treat
Plasmodium falciparum malaria. However, they can also affect the Plasmodium vivax …

Analysis of sulphadoxine/pyrimethamine resistance-conferring mutations of Plasmodium falciparum from Mozambique reveals the absence of the dihydrofolate …

N Fernandes, P Figueiredo, VE Do Rosário, P Cravo - Malaria Journal, 2007 - Springer
Background Plasmodium falciparum is the predominant human malaria species in
Mozambique and a lead cause of mortality among children and pregnant women …

[HTML][HTML] Dihydrofolate reductase I164L mutation in Plasmodium falciparum, Madagascar

D Ménard, V Andriantsoanirina… - Emerging infectious …, 2008 - ncbi.nlm.nih.gov
Analysis of the molecular basis of antimalarial drug resistance has demonstrated that
mutations in the dihydrofolate reductase (dhfr) and dihydropteroate synthase genes are …

Role of Plasmodium vivax dihydropteroate synthase polymorphisms in sulfa drug resistance

W Pornthanakasem, P Riangrungroj… - Antimicrobial Agents …, 2016 - Am Soc Microbiol
Dihydropteroate synthase (DHPS) is a known sulfa drug target in malaria treatment, existing
as a bifunctional enzyme together with hydroxymethyldihydropterin pyrophosphokinase …

Emergence of sulfadoxine–pyrimethamine resistance in Indian isolates of Plasmodium falciparum in the last two decades

A Kumar, R Moirangthem, SK Gahlawat… - Infection, Genetics and …, 2015 - Elsevier
Genotyping the sulfadoxine–pyrimethamine (SP) genes will help in identifying the genes
under drug selection and the emergence of resistance in dhfr and dhps genes. India is an …

Mutations in Plasmodium falciparum dihydrofolate reductase and dihydropteroate synthase genes in Senegal

D Ndiaye, JP Daily, O Sarr, O Ndir… - Tropical Medicine & …, 2005 - Wiley Online Library
Senegal recently (2004) switched to sulfadoxine‐pyrimethamine (SP) with amodiaquine as
first line therapy for malaria in response to increasing chloroquine resistance. In anticipation …