Plasmodium falciparum resistance to chloroquine

Discussion in 'Aralen' started by Lisik, 02-Mar-2020.

  1. freeman2007 New Member

    Plasmodium falciparum resistance to chloroquine

    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.

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    Drug-resistant P. falciparum. Chloroquine-resistant P. falciparum first developed independently in three to four areas in Southeast Asia, Oceania, and South America in the late 1950s and early 1960s. Since then, chloroquine resistance has spread to nearly all areas of the world where falciparum malaria is transmitted. Hide 10 20 30 40 50 mkfaskknnq knsskndery reldnlvqeg ngsrlgggsc lgkcahvfkl 60 70 80 90 100 ifkeikdnif iyilsiiyls vcvmnkifak rtlnkignys fvtsethnfi 110 120 130 140 150 cmimffivys lfgnkkgnsk erhrsfnlqf faismldacs vilafigltr 160 170 180 190 200 ttgniqsfvl qlsipinmff cflilryryh lynylgavii vvtialvemk 210 220 230 240 250 lsfetqeens iifnlvlisa lipvcfsnmt reivfkkyki dilrlnamvs 260 270 280 290 300. Since the discovery of Plasmodium falciparum chloroquine CQ resistance transporter PfCRT and its role as the primary genetic determinant of chloroquine resistance CQR in P. falciparum, 53 distinct isoforms of this 424 amino acid protein have been found to be expressed in parasite isolates from around the globe 1–4.

    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.

    Plasmodium falciparum resistance to chloroquine

    On the Mechanism of Chloroquine Resistance in Plasmodium falciparum, CRT - Chloroquine resistance transporter - Plasmodium falciparum - CRT.

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  7. Where the person was infected what Plasmodium species is likely to be responsible and what drug is needed. P. falciparum and P. vivax have been confirmed to be resistant in some areas to many antimalarial drugs. For example, chloroquine resistant strain of P. falciparum has spread to most endemic areas.

    • Plasmodium Falciparum - Malaria.
    • Plasmodium falciparum chloroquine resistance transporter PfCRT..
    • Return of chloroquine-sensitive Plasmodium falciparum parasites and..

    Chloroquine resistance in the human malaria parasite, Plasmodium falciparum, arises from decreased accumulation of the drug in the `digestive vacuole' of the parasite, an acidic compartment in which chloroquine exerts its primary toxic effect. It has been proposed that changes in the pH of the digestive vacuole might underlie the decreased accumulation of chloroquine by chloroquine-resistant. Chloroquine mechanism of drug action and resistance in Plasmodium falciparum. Slater AF1. Author information 1Picower Institute for Medical Research, Manhasset, NY 11030. Quinoline-containing drugs such as chloroquine and quinine have had a long and successful history in antimalarial chemotherapy. Juge N, Moriyama S, Miyaji T, Kawakami M, Iwai H, Fukui T, Nelson N, Omote H, Moriyama Y 2015 Plasmodium falciparum chloroquine resistance transporter is a H +-coupled polyspecific nutrent and drug exporter. Proc Natl Acad Sci USA 112, 3356-3361.

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    Chloroquine Phosphate Cleared by Trump, Food and Drug. Additive in aquariums to kill microscopic organisms that might harm fish President Trump announced in a press conference Thursday that chloroquine phosphate — a substance found in drugs used to.

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