Genotypification of the MSP3 Gene in patients with complicated Malaria

Genotipificación del gen MSP3 en pacientes con Malaria complicada

Objective. The genetic diversity of the natural populations of Plasmodium vivax parasites was studied by studying the variable region ofthe Pvmsp-3α gene. Materials and methods. PCR-RFLP was performed in 29 samples of patients with P. vivax malaria with complications (PC) and 32 patients with P. vivax malaria with out complications (PNC), all patients from the Bajo-Córdoba-Uraba region, Highly endemicto malaria. Total blood samples were collected for DNA extraction using the saponin /chelex-100 technique. The RFLP technique was used using there striction en zymes HhA Iand AluI. Teneasily distinguis hablere striction patterns were detected after the PCR products were digested with the enzyme Alu I and 9 with the enzyme Hha I. Results. The Pvmsp-3α gene exhibited large polymorphismand the results suggest that this gene can be used in Colombia asa moleculare pidemiological marker for the genotypin go fP. vivax. Further more, the PH1 pattern with the AluIen zyme showed higher frequency in the complicated patients. Conclusions. The Pvmsp3 gene may be agenetic marker of variability in the circulating strain so fP. vivax and the PH1 suggest samarker for predicting a complication in patients with vivax malaria.

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