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Detection of an antibody response in immunocompetent patients with systemic candidiasis or Candida albicans
J C Porsius1, H J van Vliet, J H van Zeijl
1Department of Clinical Microbiology, Erasmus University, Rotterdam, The Netherlands.
Abstract:
Tests to detect circulating antibodies to Candida albicans antigens were performed in sera from 27 immunocompetent patients, 15 of whom had deep-seated candidiasis and 12 of whom were colonised by Candida albicans. For the diagnosis of deep-seated candidiasis in patients with either deep-seated candidiasis or Candida albicans colonisation, counterimmunoelectrophoresis had a sensitivity of 87% and a specificity of 75%. Using immunoblotting it could be shown that antibodies to 35K, 47K, 68K and 88K antigens of Candida albicans occurred more frequently in patients with deep-seated candidiasis than in colonised patients. The presence of dense bands in immunoblots representing antibodies against the 47K and/or 68K antigen served to discriminate significantly between deep-seated and superficial candidiasis (p less than 0.05).