title: Bacteriological study of periodontal lesions in two sisters with juvenile periodontitis and their mother.
abstract: A total of five bacteriological samples from the periodontal pockets of two sisters with localized juvenile periodontitis and their mother with advanced periodontitis was studied. Gram-negative anaerobic rods were predominant in the samples. Bacteroides intermedius and Bacteroides loescheii were the most predominant species. The antigenicity and bacteriocinogenicity of these isolates were quite similar. Serum immunoglobulin G antibody levels of the subjects to gram-negative periodontopathic bacteria were measured by using the micro-enzyme-linked immunosorbent assay. The levels of antibodies to saccharolytic black-pigmented Bacteroides species were significantly higher than the levels in healthy young females.
mesh_terms: D000293:Adolescent; D000328:Adult; D000942:Antigens, Bacterial / Q000032:analysis; D001419:Bacteria / Q000302:isolation & purification; D001439:Bacteroides / Q000302:isolation & purification*; D001442:Bacteroides Infections / Q000382:microbiology*; D005260:Female; D005881:Gingiva / Q000382:microbiology; D006801:Humans; D005779:Immunodiffusion; D007074:Immunoglobulin G / Q000032:analysis; D010518:Periodontitis / Q000235:genetics / Q000382:microbiology*
chemical_list: D000942:Antigens, Bacterial; D007074:Immunoglobulin G