[The development of a test system for determining antibodies to Bacteroides melaninogenicus using solid-phase immunoenzyme analysis].

A test system for enzyme immunoassay of antibodies to Bacteroides melaninogenicus has been developed. The authors describe a method for the preparation of the protein and polysaccharide antigens with the use of ultrasonic, lysozyme, and beta-naphthol treatment. A total of 105 blood serum samples, 46 samples of gingival blood and gingival fluid from patients with maxillofacial phlegmons and periodontitis were examined, making use of the 1 +/- 3 omega index (from the values in healthy donors). The results evidence statistically significant difference in antibody levels of patients from whom B. melaninogenicus were isolated and of those with the negative results of bacteriologic analysis. The titers of antibodies to B. melaninogenicus in the blood and gingival fluid of patients with periodontitis were in good correlation.