Chloroquine has been extensively used in mass drug administrations, which may have contributed to the emergence and spread of resistance. It is recommended to check if chloroquine is still effective in the region prior to using it. Arthritis medicine plaquenil Chloroquine phosphate reef tank Adults will be randomized to receive 1, 3 or 5 bites of Anopheles A. stephensi mosquitoes infected with the NF54 strain of chloroquine-sensitive Plasmodium P. falciparum. Part B will be informed by the results of Part A. Thus, a total of approximately 38 adults will receive a malaria challenge. The samples were tested in triplicate against the chloroquine-sensitive NF54 strain and chloroquine-resistant K1 strain of P. falciparum. Continuous in vitro cultures of asexual erythrocyte stages of P. falciparum were conserved using a modified method of Trager and Jensen. Chloroquine is used extensively in malaria endemic areas in Africa to treat the uncomplicated form of Plasmodium falciparum malaria. However, the efficiency of chloroquine has been severely impacted by the recent development of chloroquine resistant plasmodium falciparum parasites. The Centers for Disease Control and Prevention recommend against treatment of malaria with chloroquine alone due to more effective combinations. In areas where resistance is present, other antimalarials, such as mefloquine or atovaquone, may be used instead. Falciparum nf54 chloroquine Whole-blood transcriptomic signatures induced during., Evaluation of PTA-derived rutheniumII and iridiumIII. Cognative issues plaquenilPlaquenil and vascular system P. falciparum strain NF54 PfNF54 was derived from a patient who had never left the Netherlands. PfNF54 can be obtained from the European Malaria Reagent Repository or the Malaria Research and Reference Reagent Resource Center MR4 and is sensitive to a panel of antimalarial compounds including chloroquine and pyrimethamine. Plasmodium falciparum Malaria Target Species page IUPHAR.. Chloroquine Resistance in Plasmodium falciparum - microbewiki. WHO Model Prescribing Information Drugs Used in Parasitic.. Two strains of P. falciparum are used in this study the drug-sensitive NF54 an airport strain of unknown origin and K1 a clone originating fr om Thailand which is resistant to chloroquine and pyrimethamine. The strains are maintained in RPMI 1640 medium with 0.36 mM hypoxanthine, Usual Adult Dose for Malaria Prophylaxis. 500 mg chloroquine phosphate 300 mg base orally on the same day each week Comments-If possible, suppressive therapy should start 2 weeks prior to exposure; if unable to start 2 weeks before exposure, an initial loading dose of 1 g chloroquine phosphate 600 mg base may be taken orally in 2 divided doses, 6 hours apart. Infected mosquitoes were obtained by feeding on gametocytes of NF54, a chloroquine-sensitive strain of P. falciparum, as described previously. 13 NF54 is genetically homogeneous but has not been.