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Título : Serum antiphospholipid antibody levels as biomarkers for diagnosis of pulmonary tuberculosis patients
Otros títulos : Int J Tuberc Lung Dis
Autor : Arruda, Sérgio Marcos
Takenami, I.
Oliveira, C. C. de
Petrilli, J. D.
Machado Jr, A.
Riley, L. W.
Palabras clave : Cardiolipin; Phosphatidylcholine; Phosphatidylethanolamine; Phosphatidylinositol; Sulfatide
Fecha de publicación : 2018
Resumen : OBJECTIVE: To evaluate the immunoglobulin (Ig)M and total IgG antibody response to cardiolipin (CL), phosphatidylcholine (PTC), phosphatidylethanolamine (PE), phosphatidylinositol (PI) and sulfatide (SL-I) as biosignatures that can be used to diagnose pulmonary tuberculosis (TB) and its applicability for monitoring the efficacy of anti-tuberculosis treatment. DESIGN: Serum samples from 37 adult pulmonary TB patients and 48 controls (16 healthy household contacts, 19 household contacts with latent tuberculous infection [LTBI] and 13 non-TB patients with lung disease) were screened using enzyme-linked immunosorbent assays (ELISAs) for IgM and total IgG against phospholipids. RESULTS: Levels of IgM response to CL, PE and PI, and IgG response to CL, PE, PI and PTC were significantly higher in TB patients than in control groups. Anti-CL IgG had the best performance characteristics, with a sensitivity and specificity of respectively 86.5% and 87.2%. This IgG anti-CL ELISA test detected 86.5% (32/37) of the TB patients, whereas the number detected using sputum smear was only 65.9% (24/37). After antituberculosis treatment, the median value for all antiphospholipid antibodies decreased significantly compared with baseline values (P , 0.05). CONCLUSION: Our results suggest that the total IgG anti-CL level could be useful to complement conventional bacteriological tests for the rapid diagnosis of adult pulmonary TB.
URI : http://www7.bahiana.edu.br//jspui/handle/bahiana/2970
ISSN : 1063–1070
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