Search Results - "Umekita, L F"

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  1. 1

    How are antibodies involved in the protective mechanism of susceptible mice infected with T. cruzi? by Umekita, L F, Mota, I

    “…Host resistance to Trypanosoma cruzi is dependent on both natural and acquired immune responses. During the acute phase of the infection the presence of…”
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    Journal Article
  2. 2

    Changes of anti- Trypanosoma cruzi antibodies after γ-irradiation of mice in the chronic phase of the infection by Umekita, L.F, Leite, R.A, Barbaro, K.C, Mota, I

    Published in Acta tropica (25-03-2000)
    “…The effect of sublethal whole body irradiation (800 rads) on the level and biological activities of antibodies in mice chronically infected with the CL strain…”
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  3. 3

    One Fate of Bloodstream Trypomastigote Forms of Trypanosoma cruzi after Immune Clearance: An Ultrastructural Study by Umekita, Lília F., Carneiro, Sylvia M., Sesso, Antonio, Mota, Ivan

    Published in The Journal of parasitology (01-10-1999)
    “…The fate of bloodstream forms of Trypanosoma cruzi in tissues of mice was studied after immune elimination from circulation. Observations using transmission…”
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  4. 4

    One Fate of Epimastigote Forms of Trypanosoma cruzi Injected in Mice. An Ultrastructural Study by Umekita, Lília F., Carneiro, Sylvia M., Mota, Ivan

    Published in The Journal of parasitology (01-12-1998)
    “…Recently, we suggested that epimastigote forms of Trypanosoma cruzi are cleared from circulation of mice by a mechanism independent of lysis and that platelets…”
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  5. 5

    ALTERATIONS OF THE MICROCIRCULATORY NETWORK DURING THE CLEARANCE OF EPIMASTIGOTE FORMS OF TRYPANOSOMA CRUZI: AN INTRAVITAL MICROSCOPIC STUDY by Umekita, Lilia F, Lopes-Ferreira, Mônica, Fontes Piazza, Roxane M, Umezawa, Eufrosina S, Nascimento, Marilda S, Poliselli Farsky, Sandra H, Mota, Ivan

    Published in The Journal of parasitology (01-02-2001)
    “…The distribution of epimastigote forms of Trypanosoma cruzi in the microcirculatory network and the vessel alterations were observed using an intravital…”
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    Journal Article
  6. 6

    Biological activity of chronic phase antibodies eluted from sensitized Trypanosoma cruzi trypomastigotes by Umekita, L.F, Ramos, D.P, Barbaro, K.C, Mota, I

    Published in Immunology letters (01-11-1999)
    “…Chronic infection with Trypanosoma cruzi induces high levels of antibodies that have lytic and clearance activities on bloodstream trypomastigote forms. These…”
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  7. 7

    Clearance-inducing antibodies are responsible for protection against the acute phase of Trypanosoma cruzi infection in mice by Umekita, L F, Ramos, D P, Mota, I

    “…A study was conducted on mice infected with strains Y and CL of Trypanosoma cruzi. The ability of anti-Y and anti-CL sera to induce complement-mediated lysis,…”
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  8. 8

    Specificity and role of anti-Trypanosoma cruzi clearance antibodies by Umekita, L F, Barbaro, K C, Mota, I

    “…Two strains of Trypanosoma cruzi (Y and CL) were used to study the specificity and role of anti-T. cruzi clearance antibodies. Clearance antibodies were only…”
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    Journal Article
  9. 9

    Role of platelets and complement in the clearance of epimastigote forms of Trypanosoma cruzi by Umekita, L F, Piazza, R M, Mota, I

    “…1. Trypanosoma cruzi epimastigote forms are very rapidly removed from the circulation of normal and C5-deficient mice. Depletion of C3 by cobra venom factor…”
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  10. 10

    Role of the mononuclear phagocytic system in the immune and nonspecific clearance of Trypanosoma cruzi bloodstream trypomastigotes by Umekita, L F, Mota, I

    “…1. The removal of T. cruzi bloodstream trypomastigotes (BTRYS) from the circulation is mediated mostly by the mononuclear phagocytic system (MPS). In the…”
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    Journal Article
  11. 11

    Role of the antibody Fc in the immune clearance of Trypanosoma cruzi by Umekita, L F, Takehara, H A, Mota, I

    Published in Immunology letters (01-01-1988)
    “…Passive transfer of immune serum obtained from mice chronically infected with Trypanosoma cruzi to mice containing circulating bloodstream trypomastigotes…”
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  12. 12

    Role of platelets in the in vivo removal of T. cruzi from circulation by Umekita, L F, Mota, I

    “…The possible role of platelets in the clearance of Trypanosoma cruzi was studied in vivo in A/sn female mice. Platelet depletion achieved by anti-platelet IgG…”
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  13. 13

    The effect of C3 depletion on the clearance of Trypanosoma cruzi induced by IgG antibodies by Mota, I, Umekita, L F

    Published in Immunology letters (01-06-1989)
    “…Passive transfer of homologous immune serum or IgG anti-Trypanosoma cruzi antibodies to normal mice containing circulating T. cruzi bloodstream trypomastigotes…”
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  14. 14

    In-vitro lysis of sensitized Trypanosoma cruzi by platelets: role of C3b receptors by Umekita, L F, Mota, I

    Published in Parasite immunology (01-09-1989)
    “…Incubation of Trypanosoma cruzi bloodstream trypomastigotes (Btrys) with C5-deficient blood in the presence of anti-T. cruzi immune mouse serum (IMS) or its…”
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  15. 15

    Alterations of the microcirculatory network during the clearance of epimastigote forms of Trypanosoma cruzi: An intravital microscopic study by Umekita, L F, Lopes-Ferreira, M, Piazza, RMF, Umezawa, E S, Nascimento, MS, Farsky, SHP, Mota, I

    Published in The Journal of parasitology (01-02-2001)
    “…The distribution of epimastigote forms of Trypanosoma cruzi in the microcirculatory network and the vessel alterations were observed using an intravital…”
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    Journal Article
  16. 16
  17. 17

    Sarampo: idade ótima e número de doses recomendadas para a vacinação no Brasil by SOERENSEN, B, TAKEDA, A. K, NAKANDAKARE, I. K, DE CARVALHO CURI, L, UMEKITA, L. F, ZUCCAS, W. A, GUIDONI, R, MAGALHAES, E, SANTIAGO BRITTO, S, COUTINHO FEIJO, I

    “…Este estudo foi inicialmente conduzido em população adulta normal, compreendendo doadores de Banco de Sangue, estudantes universitários e parturientes,…”
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