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Exp Parasitol. 1999 Feb;91(2):115-8.

Plasmodium falciparum: enhanced gametocyte formation in vitro in reticulocyte-rich blood.

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  • 1Rockefeller Univerisity, New York, New York 10021, USA.


Concentrates of late stage parasites of the gametocyte-forming clone HB-3 were mixed with blood rich in reticulocytes from anemic patients, or with normal control blood, and kept under culture conditions for 4 days. Significantly more gametocytes were always formed in the reticulocyte-rich blood than in the control. This was true whether the anemic blood supported a larger asexual parasitemia than the control, or a lower one, or the same and without regard to the cause of the anemia. Gametocytes as a percentage of asexual forms were up to 10 times higher in reticulocyte-rich blood than in normal blood.

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