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dc.contributor.authorS. Boonpucknavigen_US
dc.contributor.authorS. Kurathongen_US
dc.contributor.authorW. Thamaviten_US
dc.contributor.otherMahidol Universityen_US
dc.identifier.citationJournal of Clinical and Laboratory Immunology. Vol.19, No.3 (1986), 135-137en_US
dc.description.abstractThe indirect immunofluorescent antibody technique (IFA) was used for detection of antibodies in sera of patients with Opisthorchiasis. Antibodies to fluke worm and egg antigens were detected in 166 of 205 (81%) patients. The test showed that only the IgG class of antibodies reacting exclusively with integumental wall of the worm (AW) were positive in 46.8% (96/205), reacting only with the wall of intact eggs in 11 out of 205 (5.4%) and antibodies to both fluke and their egg antigens were present in 28.8% (59/205). In addition, 5.4% (11/205) of patients' sera were positive for autoantibodies producing a speckled antinuclear antibodies (ANA) pattern. The sera positive for only AW contained detectable autoantibodies to other cell antigens including: anti-smooth muscle antibodies of 9.4% (9/96), antimitochondrial antibodies of 3.1% (3/96), anti-liver/kidney microsomes of 1% (1/96) and anti-parietal cell antibodies of 1% (1/96). Autoantibodies were undetectable in sera from normal subjects. Among the ANA positive sera, 55% (6/11) exhibited antibodies against an extractable nuclear antigen (ENA) by a tanned red cell hemagglutination assay. This finding may suggest that the autoantibody response was due to the cross reaction between worm antigen and self antigen or it may be the result of polyclonal activation of B lymphocytes in these patients.en_US
dc.rightsMahidol Universityen_US
dc.subjectImmunology and Microbiologyen_US
dc.titleDetection of antibodies in sera from patients with opisthorchiasisen_US
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