Molecular determination of point mutation haplotypes in the dihydrofolate reductase and dihydropteroate synthase of Plasmodium falciparum in three districts of northern Tanzania.

@article{Pearce2003MolecularDO,
  title={Molecular determination of point mutation haplotypes in the dihydrofolate reductase and dihydropteroate synthase of Plasmodium falciparum in three districts of northern Tanzania.},
  author={Richard J. Pearce and Christopher J. Drakeley and Daniel DC Chandramohan and Franklin W. Mosha and Cally Roper},
  journal={Antimicrobial agents and chemotherapy},
  year={2003},
  volume={47 4},
  pages={1347-54}
}
The antimalarial combination of sulfadoxine and pyrimethamine (SP) was introduced as first-line treatment for uncomplicated malaria in Tanzania during 2001 following 18 years of second-line use. The genetic determinants of in vitro resistance to the two drugs individually are shown to be point mutations at seven sites in the dihydrofolate reductase gene (dhfr) conferring resistance to pyrimethamine and five sites in the dihydropteroate synthase (dhps) gene conferring resistance to sulfadoxine… CONTINUE READING

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