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  • Title: Changes in humoral responses to Trypanosoma cruzi during the course of infection in mice held at elevated temperature.
    Author: Dimock KA, Davis CD, Kuhn RE.
    Journal: J Parasitol; 1992 Aug; 78(4):687-96. PubMed ID: 1635028.
    Abstract:
    A parasite-specific, enzyme-linked immunosorbent assay and immunoblot analysis were used to examine the development of humoral immunity in Trypanosoma cruzi-infected C3H mice that survive acute infection when held at elevated environmental temperature. Both parasite-specific antibody levels and numbers of antigens identified increased during infection in mice held at 36 C, with the greatest reactivity measured in sera from mice that had resolved parasitemias. Heat shock of culture forms of T. cruzi resulted in production of different antigens, but there was no strong difference in the antigens recognized by sera from mice held at room temperature and those recognized by sera from mice held at 36 C. Immunoblot analysis using blood-form trypomastigote antigens identified a band of approximately 61 kDa produced by trypomastigotes in mice held at 36 C that was strongly detected by sera from mice held at 36 C. Little if any reactivity to this antigen was observed using sera from mice held at room temperature.
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