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Paucity of Plasmodium vivax mature schizonts in peripheral blood is associated with their increased cytoadhesive potential.

The Journal of infectious diseases (2014-01-15)
Stefanie C P Lopes, Letusa Albrecht, Bruna O Carvalho, André M Siqueira, Richard Thomson-Luque, Paulo A Nogueira, Carmen Fernandez-Becerra, Hernando A Del Portillo, Bruce M Russell, Laurent Rénia, Marcus V G Lacerda, Fabio T M Costa
RÉSUMÉ

There is now a growing body of evidence that challenges the current view that Plasmodium vivax-infected erythrocyte (Pv-iE) are unable to sequester. Here we used ex vivo adhesion assays with Pv-iE before and after maturation to demonstrate a higher binding potential of schizonts compared to other asexual stages. These experimental results are correlated with our observations in a panel of 50 vivax malaria patients where schizonts were completely absent in 27 isolates, and few schizonts were observed in the remaining patients. These observations prompt a paradigm shift in P. vivax biology and open avenues to investigate the role of Pv-iE sequestration.

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Sigma-Aldrich
Primaquine bisphosphate, 98%
USP
Primaquine phosphate, United States Pharmacopeia (USP) Reference Standard
Primaquine diphosphate, European Pharmacopoeia (EP) Reference Standard