Science
Gene mutation linked to drug-resistant malaria spreads rapidly in Uganda
Researchers identified a genetic cluster that reduces susceptibility to lumefantrine, a key component of standard malaria treatments.
The short version
- A study of malaria parasite samples in Uganda has identified a specific genetic mutation cluster, named PIN, that reduces the parasite's sensitivity to the widely used antimalarial drug lumefantrine.
- First detected in a 2008 sample, the mutation has spread rapidly, reaching a prevalence of 84 percent in northern Uganda and 55 percent in eastern Uganda by 2024.
- While laboratory tests confirm reduced drug susceptibility, researchers still need to determine how the mutation impacts clinical treatment outcomes in actual patients.
Key facts
- A research team led by Brown University analyzed 157 malaria parasite samples collected in Uganda between 2016 and 2024, identifying a cluster of three amino acid mutations and two deletions in the px1 gene.[Wired]
- The mutation cluster, which researchers named PIN, is associated with a reduced sensitivity to lumefantrine, a primary component of the standard artemether-lumefantrine combination therapy.[Wired]
- Historical genetic database analysis confirmed the PIN mutation was present in 2008 and has since spread rapidly across Uganda.[Wired]
- By 2024, the prevalence of the PIN mutation rose to 84 percent in northern Uganda and 55 percent in eastern Uganda.[Wired]
What remains uncertain
- The study only demonstrated reduced drug susceptibility in laboratory settings; it is not yet clear how much this mutation affects clinical outcomes in actual patients.[Wired]
- Due to a lack of current data, the extent to which the PIN mutation has spread across borders into neighboring countries remains unknown.[Wired]
Sources
- One asteroid strike may explain two mysteries of Mars’ moon DeimosScienceDaily - Science
- A Mutation Is Making It Easier for Drug-Resistant Malaria to SpreadWired metered