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Appl Environ Microbiol. 1970 March; 19(3): 425-428
Copyright © 1970 American Society for Microbiology. All Rights Reserved.

Positive Fluorescent Treponemal Antibody Reactions in Diabetes 1

M. Kathryn Hughes, Matthew H. Fusillo and Bob S. Roberson

Veterans Administration Hospital, Washington, D.C. 20010
Department of Microbiology, University of Maryland, College Park, Maryland 20742

ABSTRACT

In a survey of 129 diabetic patients and 142 normal individuals, a significantly higher percentage of positive reactions in the fluorescent treponemal antibody-200 (FTA-200) test was found among diabetic patients than in the normal population. Absorption of all FTA-200-reactive sera with an extract of Reiter's treponeme eliminated most of the positive reactions in sera from diabetic patients, and three of the five positive reactions detected in sera from apparently normal subjects. On immunoelectrophoresis, precipitin bands developed most frequently between the Reiter sorbent and sera from diabetic patients positive in the FTA-200 test. Serum components responsible for FTA reactivity and precipitin reactions against the sorbent were resistant to treatment with mercaptoethanol, suggesting antibody of the IgG class. Cross-reacting antibodies produced in response to normal treponemal flora, and perhaps acquiring enhanced reactivity by means of nonspecific interacting substances in sera peculiar to the altered physiological state of diabetes, are suggested as possible causes of positive reactions of unabsorbed sera. No correlation could be made between age of the diabetic patient, treatment or duration of the disease, and FTA or precipitin reactivity of the patient's serum.

FOOTNOTES

1 Presented in part in partial fulfillment of the requirements for the M.S. degree at the University of Maryland, College Park, Md.

Appl Environ Microbiol. 1970 March; 19(3): 425-428
Copyright © 1970 American Society for Microbiology. All Rights Reserved.





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