Is p falciparum chloroquine resistant

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  1. Alegris Guest

    Is p falciparum chloroquine resistant

    Chloroquine was first discovered in the 1930s in Germany and began to be widely used as an anti-malaria post-World War II, in the late 1940s. However, resistance to the drug also rapidly emerged, with the first cases of not being cured by administration of chloroquine being reported in the 1950s.

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    Chloroquine should not be used for treatment of P. falciparum infections from areas of chloroquine resistance or malaria occurring in patients where chloroquine prophylaxis has failed. Patients infected with a resistant strains of plasmodia should be treated with another antimalarial drug. In most parts of the world, P. falciparum is resistant to chloroquine, and the recommended treatment is artemisinin bases combinations. Primaquine should be used in P. vivax and P. ovale malaria for eradicating the persisting liver forms and in P. falciparum malaria to destroy the gametocytes, so as to prevent the spread of infection. Haiti has been a remarkable outlier as a country in which P. falciparum malaria is endemic without evidence of chloroquine CQ resistance 3,6–8. Even though Haiti has had no comprehensive national malaria control program for 20 years 9, several reports have found no evidence of CQ resistance in Haiti 3,6–8.

    Nowadays, other drugs, and notably ones containing artemisinin-based compounds, are preferentially used to treat uncomplicated malaria and especially in areas where chloroquine resistance is known to occur. Since then, resistance has spread rapidly (since obviously it is beneficial to the parasite to be resistant, so various mutations conferring this protection have arisen multiple times in different areas in the world and also been passed on preferentially to new generations of malaria parasites), and now chloroquine resistant are found in multiple locations in south-east Asia, such as Myanmar and India, as well as from Guyana in South America.

    Is p falciparum chloroquine resistant

    P. falciparum CG2, Linked to Chloroquine Resistance, Does Not., Treatment of Malaria – Malaria Site

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  3. Chloroquine patient information leaflet
  4. Chloroquine sensitive parasites CQS accumulate much more chloroquine in the DV than chloroquine resistant strains CQR. Recent studies have associated the reduced chloroquine accumulation observed in the parasite vacuole of resistant strains 12 with point mutations in the gene encoding for the P. falciparum chloroquine resistance transporter PfCRT protein for a review see 14, 15.

    • On the Mechanism of Chloroquine Resistance in Plasmodium..
    • Chloroquine-Resistant Haplotype Plasmodium falciparum..
    • Chloroquine Resistance in Plasmodium falciparum Malaria..

    Chemosensitizing agents “resistance reversal agents” that can be coadministered with chloroquine may offer another therapeutic approach against chloroquine-resistant P. falciparum. A number of agents of diverse chemical structures and properties selectively enhance the activity of chloroquine against chloroquine-resistant but not chloroquine-sensitive malaria parasites in vitro 37, 67–70. Sep 30, 2015 Mutations in the Plasmodium falciparum chloroquine resistance transporter, PfCRT, are the major determinant of chloroquine resistance in this lethal human malaria parasite. Since the first documentation of P. falciparum chloroquine resistance in the 1950s, resistant strains have appeared throughout East and West Africa, Southeast Asia, and South America. The effectiveness of chloroquine against P. falciparum has declined as resistant strains of the parasite evolved.

  5. aspect-media Guest

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  6. cherep88 XenForo Moderator

    Plaquenil is the brand name for the prescription drug hydroxychloroquine. Plaquenil Uses, Dosage & Side Effects - Taking Plaquenil for Rheumatoid Arthritis What Conditions does Plaquenil Treat? - WebMD
  7. scolopax Well-Known Member

    WHO Antimalarial drug efficacy maps These interactive maps, based on the WHO global antimalarial drug efficacy database, provide a visual overview of therapeutic efficacy study results, according to malaria species, antimalarial treatment, year and geographic location.

    Update Chloroquine-Resistant Plasmodium falciparum -- Africa