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Prevalence of pfk13 and pfmdr1 polymorphisms in Bounkiling, Southern Senegal

March 31, 2021 - 14:26 -- Open Access
Ahouidi A, Oliveira R, Lobo L, Diedhiou C, Mboup S, Nogueira F
PLoS One. 2021 Mar 26;16(3):e0249357

Delayed Plasmodium falciparum parasite clearance has been associated with Single Nucleotide Polymorphisms (SNPs) in the kelch protein propeller domain (coded by pfk13 gene). SNPs in the Plasmodium falciparum multidrug resistance gene 1 (pfmdr1) are associated with multi-drug resistance including the combination artemether-lumefantrine. To our knowledge, this is the first work providing information on the prevalence of k13-propeller and pfmdr1 mutations from Sédhiou, a region in the south of Senegal.

Expansion of a Specific Plasmodium falciparum PfMDR1 Haplotype in Southeast Asia with Increased Substrate Transport

December 3, 2020 - 13:33 -- Open Access
Calçada C, Silva M, Baptista V, Thathy V, Silva-Pedrosa R, Granja D, Ferreira PE, Gil JP, Fidock DA, Veiga MI
mBio. 2020 Dec 1;11(6):e02093-20

Artemisinin-based combination therapies (ACTs) have been vital in reducing malaria mortality rates since the 2000s. Their efficacy, however, is threatened by the emergence and spread of artemisinin resistance in Southeast Asia. The Plasmodium falciparum multidrug resistance protein 1 (PfMDR1) transporter plays a central role in parasite resistance to ACT partner drugs through gene copy number variations (CNV) and/or single nucleotide polymorphisms (SNPs). Using genomic epidemiology, we show that multiple pfmdr1 copies encoding the N86 and 184F haplotype are prevalent across Southeast Asia.

Polymorphisms of pfcrt, pfmdr1, and K13-propeller genes in imported falciparum malaria isolates from Africa in Guizhou province, China

July 20, 2020 - 15:28 -- Open Access
She D, Wang Z, Liang Q, Lu L, Huang Y, Zhang K, An D, Wu J
BMC Infect Dis. 2020 Jul 16;20(1):513

Imported falciparum malaria from Africa has become a key public health challenge in Guizhou Province since 2012. Understanding the polymorphisms of molecular markers of drug resistance can guide selection of antimalarial drugs for the treatment of malaria. This study was aimed to analyze the polymorphisms of pfcrt, pfmdr1, and K13-propeller among imported falciparum malaria cases in Guizhou Province, China.

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