Research Article

High Molecular Weight Proteins of Trypanosoma cruzi Reduce Cross-Reaction with Leishmania spp. in Serological Diagnosis Tests

Figure 5

Western blot analysis of chagasic and leishmaniasic patients’ sera using deglycosylated extracts. Enzymatic deglycosylation was performed with (A, C) O-glycosidase and α( )-neuraminidase; (B, D) β( )-galactosidase and β-N-acetylglucosaminidase. 1 and 2 correspond to chagasic patients’ sera samples and 3 and 4 correspond to leishmaniasic patients’ sera samples (dilution 1 : 750) and peroxide-conjugated anti-human IgG (1 : 10000). Lectin PT was used as a positive control for carbohydrate recognition. A positive serum sample was also used as a positive control for antigenic recognition.
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