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  • Title: [Serodiagnosis of tuberculosis by detection of antituberculous glycolipid antigen (TBGL antigen) antibodies in serum using enzyme-linked immunosorbent assay: clinical evaluation of anti-TBGL antibodies assay kit].
    Author: Toyoda T, Osumi M, Aoyagi T, Kawashiro T.
    Journal: Kekkaku; 1996 Dec; 71(12):655-61. PubMed ID: 9011133.
    Abstract:
    Kyowa Medex Co., Ltd. developed the kit for the sero-diagnosis of tuberculosis, which detects IgG antibodies against tuberculous glycolipids antigen containing cord factor (TBGL antigen) prepared from M. tuberculosis using the enzyme-linked immunosorbent assay technique. We evaluated the kit using clinical specimens and the results are as follows: 1) In total, 34 out of 39 cases (87.2%) with active pulmonary tuberculosis showed positive anti-TBGL antibody. 2) Patients with cavity, patients with extensive lesions and patients excreting large amount of acid fast bacilli tended to show high positivity rates. 3) The antibody titers increased in 7 out of 11 cases after starting the antituberculous chemotherapy. 4) The use of the antibody is unsuitable for the determination of the activity of tuberculosis since the antibody titers only slightly decreased even after chemotherapy for two years. 5) Two out of four nontuberculous mycobacteriosis cases showed high antibody titers 6) All three AIDS patients with tuberculosis showed low antibody titers. 7) The antibody was negative in almost all healthy controls showing a positive PPD skin test after vaccination with BCG, and it was therefore assumed that the antibody titer is not increased by BCG vaccination. 8) The antibody titers of the staff members working in the tuberculosis wards were not high compared with those of staff members working in the other wards.
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