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Abstract
Abstract
Man is concerned with only four well-authenticated species, Plasmodium vivax, P. falciparum, P. malariae and P. ovale, of some 140 known species, of the protozoon Plasmodium which, transmitted by the female anopheline mosquito, are the cause of malaria. There is a high degree of specificity in host-parasite relationships for, with the exception of Plasmodium vivax which can produce a mild parasitaemia in chimpanzees1, none of the human parasites has yet been transmitted to other animals.
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Absence of potentiation between quinine and pyrimethamine in infections of Plasmodium gallinaceum in chicks. Parasitology 2009. [DOI: 10.1017/s0031182000026457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The effect of combined doses of pyrimethamine and quinine has been studied in P. gallinaceum. No potentiation of the action of the drugs was observed.
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MANWELL REGINALDD, KHABIR PARVIZA. Further Studies in the Chemotherapy of Plasmodium hexamerium Infections in Ducks. ACTA ACUST UNITED AC 2007. [DOI: 10.1111/j.1550-7408.1954.tb00801.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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ROLLO IM. The mode of action of sulphonamides, proguanil and pyrimethamine on Plasmodium gallinaceum. BRITISH JOURNAL OF PHARMACOLOGY AND CHEMOTHERAPY 2003; 10:208-14. [PMID: 14389662 PMCID: PMC1509507 DOI: 10.1111/j.1476-5381.1955.tb00084.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Biguanides. Med Chem 1972. [DOI: 10.1016/b978-0-12-688950-5.50018-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Biochemistry, Metabolism, and Cultivation of Malaria Parasites. Med Chem 1972. [DOI: 10.1016/b978-0-12-688950-5.50007-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ferone R, Hitchings GH. Folate cofactor biosynthesis by Plasmodium berghei. Comparison of folate and dihydrofolate as substrates. THE JOURNAL OF PROTOZOOLOGY 1966; 13:504-6. [PMID: 4381842 DOI: 10.1111/j.1550-7408.1966.tb01951.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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JACOBS RL. Role of p-aminobenzoic acid in Plasmodium berghei infection in the mouse. Exp Parasitol 1964; 15:213-25. [PMID: 14191322 DOI: 10.1016/0014-4894(64)90017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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SCHELLENBERG KA, COATNEY GR. The influence of antimalarial drugs on nucleic acid synthesis in Plasmodium gallinaceum and Plasmodium berghei. Biochem Pharmacol 1961; 6:143-52. [PMID: 13747452 DOI: 10.1016/0006-2952(61)90158-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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BISHOP A. The action of 2:4-diamino-6:7-diisopropylpteridine upon Plasmodium gallinaceum and its relation to other compounds which are pteroylglutamic acid antagonists. Parasitology 1954; 44:450-64. [PMID: 13214921 DOI: 10.1017/s0031182000019132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
1. Two strains ofPlasmodium gallinaceumwere made resistant to 2:4-diamino-6:7-diisopropylpteridine (0/129) by treatment with that drug.2. The 0/129-resistant strains were resistant to proguanil, pyrimethamine, 2:4-diamino-6:7-diphenylpteridine (0/63) and 2:4-diamino-5-(p–chlorophenoxy)-6-methylpyrimidine (48–210), but not to sulphadiazine.3. In one strain treated with 0/129, the development of resistance to that drug itself preceded resistance to proguanil, and resistance to proguanil preceded resis tance to pyrimethamine.4. A strain ofP. gallinaceummade resistant to 0/63 was resistant to proguanil, pyrimethamine and 0/129, but not to sulphadiazine.5. The action of 0/129 and proguanil uponP. gallinaceumwas not antagonized byp–A.B., though in the minimum effective dose their action was antagonized by relatively large doses of P.G.A.6. Whereas the action of sulphadiazine uponP. gallinaceumwas antagonized competitively byp–A.B., it was antagonized by P.G.A. only when the sulphadiazine was given in small doses.
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CLYDE DF, SHUTE GT. Resistance of East African varieties of Plasmodium falciparum to pyrimethamine. Trans R Soc Trop Med Hyg 1954; 48:495-500. [PMID: 13216953 DOI: 10.1016/0035-9203(54)90085-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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GREENBERG J. The effect of analogues of folic acid on the activity of sulfadiazine against Plasmodium gallinaceum. Exp Parasitol 1954; 3:351-7. [PMID: 13183094 DOI: 10.1016/0014-4894(54)90033-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
The action of pyrimethamine, sulphadiazine, proguanil and its active metabolite CPT, and 2:4-diaminopteridines against infections ofPlasmodium bergheiin mice was antagonized byP–aminobenzoic acid and by pteroylglutamic acid. Antagonism was in some instances detected only whenP–aminobenzoic acid was given in solution in the drinking water as well as being injected subcutaneously. No antagonism was detected with a number of amino acids and nucleic acid derivatives.As all of the above group of drugs can be antagonized byP–aminobenzoic acid and by pteroylglutamic acid, it would seem that they are alike in their mode of action. There must, however, be some differences between the mode of action or absorption of these drugs because species ofPlasmodiumthat are very sensitive to the action of one of these drugs are frequently not very sensitive to the action of others.AsP. bergheiis dependent onp–aminobenzoic acid, it is suggested that it can utilize this compound in the synthesis of pteroylglutamic acid to a greater extent than canP. gallinaceum, and that it resemblesP. knowlesimore than other species ofPlasmodium.
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