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- Document 0683
- DOCN M9610683
- TI Preliminary evaluation of a Mycobacterium tuberculosis
- lipooligosaccharide (LOS) antigen in the serological diagnosis of
- tuberculosis in HIV seropositive and seronegative patients.
- DT 9601
- AU Daleine G; Lagrange PH; Service de Microbiologie, Hopital Saint-Louis,
- Paris, France.
- SO Tuber Lung Dis. 1995 Jun;76(3):234-9. Unique Identifier : AIDSLINE
- MED/96014892
- AB OBJECTIVE: To assess the value of detection of specific IgG or IgM
- antibodies against three polar glycolipids of Mycobacterium tuberculosis
- in HIV seropositive and seronegative patients with documented active
- tuberculosis. DESIGN: Using an ELISA test, concentrations of IgM and IgG
- antibodies against phenolic glycolipid Tb1 (PGL Tb1), 2.3 diacyl
- trehalose (DAT) and polar lipooligosaccharide (LOS) were measured in the
- serum of 36 patients with active tuberculosis: 16 tuberculosis patients
- were coinfected with HIV (TB HIV+), and 20 were HIV seronegative (TB
- HIV-). 104 control sera were tested: they were collected from 50 healthy
- blood donors and from 54 asymptomatic HIV seropositive patients.
- Specificity, sensitivity and predictive positive and negative values
- were calculated. RESULTS: For the LOS antigen tested, sensitivity,
- specificity and predictive positive value of specific IgG antibodies
- were 75%, 95% and 84% respectively among the 36 tuberculosis patients.
- No significant results were obtained either with the IgM against the LOS
- antigen or with IgG against the DAT and PGL Tb1 antigens. Significant
- sensitivity and positive predictive values were demonstrated only with
- the ELISA test measuring specific IgG against the LOS antigen. The
- sensitivity was greater in the TB HIV+ subgroup (94%) as compared with
- the TB HIV- (60%) subgroup. These results were not related to different
- potential factors such as the site of disease (pulmonary or
- extrapulmonary) or by the acid-fast bacteria load as detected by the
- smear microscopic (Ziehl-Neelsen) examination. CONCLUSIONS: The results
- suggest that of the 3 antigens tested, only the LOS antigen is a
- potential marker for detecting the development of tuberculosis in HIV
- patients.
- DE Antibodies, Bacterial/BLOOD Antigens, Bacterial/*BLOOD/IMMUNOLOGY
- AIDS-Related Opportunistic Infections/*DIAGNOSIS Biological
- Markers/ANALYSIS Enzyme-Linked Immunosorbent Assay/METHODS Human HIV
- Seropositivity/*COMPLICATIONS IgG/*BLOOD IgM/*BLOOD
- Immunohistochemistry Lipopolysaccharides/*BLOOD/IMMUNOLOGY
- Mycobacterium tuberculosis/IMMUNOLOGY Tuberculosis/*DIAGNOSIS JOURNAL
- ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-