Circulating immune Complex in Syphilis Min Geol Lee, M.D., Ho Kwahck, M.D., Joo Young Park, M.D.*, Se Jong Kim, M.D.*, Jung Bock Lee, M.D. Departments of Dermatology, Microbiology* Yonsei University College of Medicine, Seoul, Korea In this study,...
Circulating immune Complex in Syphilis Min Geol Lee, M.D., Ho Kwahck, M.D., Joo Young Park, M.D.*, Se Jong Kim, M.D.*, Jung Bock Lee, M.D. Departments of Dermatology, Microbiology* Yonsei University College of Medicine, Seoul, Korea In this study, the author tried to clarify the relationships between the clinical stages of untreated syphilis and the positive rates of circalating immune complex(CIC). Additionally, the study looks at the duration of CIC conversion to negative in the treated previously positive patient by means of solid phase CIq enzyme assay(CIq EA), solid phase anti-CIq enzyme assay (anti-Ciq EA), and platelet aggregation test(PAT)to get the following results. The results are as follows : 1. Among the 132 untreated patients, 36 patients(27.3%) were CIC positive in at least one of the three tests performed, and in the negative groups, two out of 50(4.0%) were CIC positive. 2. The positive rates beginning with the highest were as follows : secondary syphilis, early latent syphilis, late latent syphilis, and primary syphilis. 3. Among the seven CIq EA positive patients before treatment, two had negative conversion in the first week after treatment. Among the remaining five, one remained positive after three weeks and four after three months. 4. Among the six anti-CIq EA positive patients before treatment, there were three negative conversions after two weeks, one after three months ; the remaining two stayed positive. 5. The one PAT positive patient showed negative coversion after one week of treatment.