Chloroquine-resistant falciparum malaria from Irian Jaya (Indonesian New Guinea). 1976

D F Clyde, and V C McCarthy, and R M Miller, and R B Hornick

A strain of Plasmodium falciparum, transmitted in Irian Jaya (Indonesian New Guinea) was isolated in 1974 and sent to the University of Maryland for characterization in nonimmune volunteers. At Maryland the Indonesia (Whit.) strain, as it has been designated, was transmitted to colonized Anopheles stephensi. Prophylactically, it was not suppressed by proguanil hydrochloride 100 mg. daily. Curatively, parasitaemia was not cleared by treatment with 1-5 g. (base) in three days of chloroquine or amodiaquine (RII responses), nor by treatment with 150 mg. of pyrimethamine in three days (RIII), and some resistance was also shown to quinine. A single dose of 1-5 g. of mefloquine (WR 142,490) produced radical cure in the two patients treated with this new 4-quinolinemethanol compound.

UI MeSH Term Description Entries
D008288 Malaria A protozoan disease caused in humans by four species of the PLASMODIUM genus: PLASMODIUM FALCIPARUM; PLASMODIUM VIVAX; PLASMODIUM OVALE; and PLASMODIUM MALARIAE; and transmitted by the bite of an infected female mosquito of the genus ANOPHELES. Malaria is endemic in parts of Asia, Africa, Central and South America, Oceania, and certain Caribbean islands. It is characterized by extreme exhaustion associated with paroxysms of high FEVER; SWEATING; shaking CHILLS; and ANEMIA. Malaria in ANIMALS is caused by other species of plasmodia. Marsh Fever,Plasmodium Infections,Remittent Fever,Infections, Plasmodium,Paludism,Fever, Marsh,Fever, Remittent,Infection, Plasmodium,Plasmodium Infection
D008297 Male Males
D010880 Piperidines A family of hexahydropyridines.
D010963 Plasmodium falciparum A species of protozoa that is the causal agent of falciparum malaria (MALARIA, FALCIPARUM). It is most prevalent in the tropics and subtropics. Plasmodium falciparums,falciparums, Plasmodium
D011739 Pyrimethamine One of the FOLIC ACID ANTAGONISTS that is used as an antimalarial or with a sulfonamide to treat toxoplasmosis. Chloridin,Daraprim,Malocide,Tindurine
D011803 Quinine An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood. Biquinate,Legatrim,Myoquin,Quinamm,Quinbisan,Quinbisul,Quindan,Quinimax,Quinine Bisulfate,Quinine Hydrochloride,Quinine Lafran,Quinine Sulfate,Quinine Sulphate,Quinine-Odan,Quinoctal,Quinson,Quinsul,Strema,Surquina,Bisulfate, Quinine,Hydrochloride, Quinine,Sulfate, Quinine,Sulphate, Quinine
D011804 Quinolines
D002727 Proguanil A biguanide compound which metabolizes in the body to form cycloguanil, an anti-malaria agent. Chlorguanid,Chloroguanide,Bigumal,Chloriguane,Chloroguanide Hydrochloride,Paludrin,Paludrine,Proguanil Hydrochloride,Hydrochloride, Chloroguanide,Hydrochloride, Proguanil
D002738 Chloroquine The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses. Aralen,Arechine,Arequin,Chingamin,Chlorochin,Chloroquine Sulfate,Chloroquine Sulphate,Khingamin,Nivaquine,Sulfate, Chloroquine,Sulphate, Chloroquine
D004351 Drug Resistance Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration. Resistance, Drug

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