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Background:  The emergence of resistance to artemisinin derivatives in western Cambodia is threatening to revert the recent advances made toward global malaria control and elimination. Known resistance-mediating polymorphisms in the  K13, pfcrt, pfmdr1, pfdhfr , and  pfdhps  genes are of greatest importance for monitoring the spread of antimalarial drug resistance.  Methods : Samples for the present study were collected from 244 patients with uncomplicated malaria in health centers of Bobo-Dioulasso, Burkina Faso. Blood sample was collected on filter paper before the subject received any treatment. The parasite DNA was then extracted and amplified by Polymerase Chain Reaction (PCR) to evaluate the prevalence of polymorphism of  pfcrt K76T,  pfmdr1  (N86Y, Y184F), and  pfdhps  (A437G, K540E). The K13 gene polymorphism was analyzed by nested PCR followed by sequencing.  Results : The overall results showed 2.26% (5/221) of K13 synonymous mutant alleles (two C469C, one Y493Y, one G496G, and one V589V), 24.78%, 19.58%, 68.75%, 60.9%, 53.7%, 63.8%, and 64.28%, respectively, for mutant  pfcrt 76T ,  pfmdr1-86Y, pfmdr1-184F, pfdhfr51I, pfdhfr59R, pfdhfr108N , and  pfdhps 437G.  We did not report any mutation at codon 540 of  pfdhps .  Conclusion : These results provide baseline prevalence of known drug resistance polymorphisms and suggest that artemisinin combination therapies may retain good efficacy in the treatment of uncomplicated malaria in Burkina Faso.

Polymorphisms inK13, pfcrt, pfmdr1, pfdhfr, andpfdhpsin parasites isolated from symptomatic malaria patients in Burkina Faso