Baseline in vitro activities of the antimalarials pyronaridine and methylene blue against Plasmodium falciparum isolates from Kenya

  • John Okombo*
  • , Steven M. Kiara
  • , Leah Mwai
  • , Lewa Pole
  • , Eric Ohuma
  • , Lynette Isabella Ochola
  • , Alexis Nzila
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We have analyzed the in vitro activities of pyronaridine and methylene blue against 59 Plasmodium falciparum isolates from Kenya in association with polymorphisms in Pfcrt (codon 76), Pfmdr1 (codon 86), and Pfnhe (full sequence). The median inhibitory concentrations that kill 50% of parasites were 13.5 and 3.3 nM for pyronaridine and methylene blue, respectively. Their activities were not associated with polymorphisms in these genes. The drugs' high in vitro activities indicate that they would be efficacious against Kenyan isolates in vivo.

Original languageEnglish
Pages (from-to)1105-1107
Number of pages3
JournalAntimicrobial Agents and Chemotherapy
Volume56
Issue number2
DOIs
StatePublished - Feb 2012

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

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