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  • Title: Reactivity of IgE in human Schistosoma mansoni sera to S. mansoni antigens.
    Author: Reiner G, Zahner H.
    Journal: Parasitol Res; 1989; 75(5):392-5. PubMed ID: 2498868.
    Abstract:
    Sera from Schistosoma mansoni-infected human patients were tested for total IgE levels and specific IgE and IgG antibodies to S. mansoni adult worm, cercaria, and egg antigen by ELISA. Of 50 sera, 28 were investigated by enzyme-linked crossed immunoelectrophoresis (ELCIE) to detect IgE reactivity to individual adult worm extract components. All sera showed increased total IgE levels. Specific IgE antibody levels to the different antigens varied; they were significantly correlated with each other but independent from total IgE. No correlation was found between specific IgG and any of the IgE antibody levels. Testing of the 28 individual sera by ELCIE revealed heterogeneous patterns. Seven sera were found to be nonreactive: three reacted with one precipitate, and the others reacted with between two and nine precipitates. However, in no case were identical patterns recognized, although four antigens reacted with about 80% of the sera. The number of bands detected by the individual sera depended neither on the levels of total IgE nor on those of specific IgE.
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