Evidence map›Paper›PMID 42321796›Full record

ArticleMalaria journal2026

Molecular surveillance of antimalarial drug resistance markers in the pfcrt, pfmdr1 and pfmrp1 genes of Plasmodium falciparum isolates from southeastern Iran.

Mohadeseh Jafari, Romina Rezapour, Fahimeh Nemati, Akram Abouie Mehrizi, Sakineh Pirahmadi

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Article in Malaria journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Mohadeseh Jafari *Malaria and Vector Research Group (MVRG), WHO Collaborating Center for Vector-Borne Diseases, Biotechnology Research Center (BRC), Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran.
Romina Rezapour *Malaria and Vector Research Group (MVRG), WHO Collaborating Center for Vector-Borne Diseases, Biotechnology Research Center (BRC), Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran.
Fahimeh NematiDepartment of Biotechnology, TeMS.C., Islamic Azad University, Tehran, Iran.
Akram Abouie MehriziMalaria and Vector Research Group (MVRG), WHO Collaborating Center for Vector-Borne Diseases, Biotechnology Research Center (BRC), Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran.
Sakineh PirahmadiMalaria and Vector Research Group (MVRG), WHO Collaborating Center for Vector-Borne Diseases, Biotechnology Research Center (BRC), Pasteur Institute of Iran, P.O. Box 1316943551, Tehran, Iran. s.pirahmadi2020@googlemail.com.

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6 · The paper itself

Abstract

backgroundThe emergence and spread of Plasmodium falciparum resistance to artemisinin and its partner drugs pose a major challenge to malaria elimination efforts. Continuous monitoring of resistance-associated molecular markers provides valuable insights into the emergence of resistant genotypes and their geographical distribution.

methodsIn this study, we investigated mutations linked to antimalarial drug resistance in the pfcrt, pfmdr1, and pfmrp1 genes among 100 P. falciparum isolates collected from southeastern Iran during 2022-2023 and compared the findings with data from the same region a decade earlier. Point mutations were genotyped using PCR-RFLP.

resultsMolecular analysis demonstrated a high prevalence (95%) of the pfcrt K76T mutation. In pfmdr1, no mutations were observed at codons 1034, 1042, or 1246; however, the N86Y and Y184F mutations were detected in 3.75% and 51.25% of isolates, respectively. Comparative analysis between the previous (2007-2010) and current (2022-2023) studies revealed a significant increase in the wild-type allele for N86Y and the mutant allele for Y184F. In pfmrp1, mutations at H191Y, S437A, I876V, and F1390I were identified in 68.75%, 85%, 78.75%, and 46.25% of isolates, respectively, while no mutation was observed at K1466R. The predominant pfmdr1 haplotype shifted from wild-type (50%) in the previous study to the single-mutation haplotype N

conclusionsThe persistence of the pfcrt K76T mutant allele despite the withdrawal of Chloroquine from the treatment policy in Iran may be attributable to the co-endemicity of P. vivax in the study area. The increasing prevalence of the N

Indexed as

AntimalarialsATP-Binding Cassette, Sub-Family C ProteinsDrug ResistanceMembrane Transport ProteinsPlasmodium falciparumProtozoan ProteinsGenotypeHumansIranMalaria, FalciparumPolymerase Chain ReactionPolymorphism, Restriction Fragment LengthAntimalarialsATP-Binding Cassette, Sub-Family C ProteinsMdr1 protein, Plasmodium falciparumMembrane Transport Proteinsmultidrug resistance-associated protein 1PfCRT protein, Plasmodium falciparumProtozoan ProteinsArtemisininDrug resistanceMutationpfcrtpfmdr1pfmrp1Plasmodium falciparum

Identifiers

PMID42321796
PMCPMC13536877

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