The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil
We report on the measurement of saliva anti-Purified Protein Derivative sIgA and 38kDa antibodies from 127 children, of whom 31 were strong tuberculosis suspects and 96 were healthy contact children. The results concerning the percentage of children with antibody reactivity to PPD and 38kDa antigens...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Medicina Tropical (SBMT)
2006-10-01
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| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822006000500007 |
| _version_ | 1817971351894360064 |
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| author | Carlos Fernández de Larrea Jacobus Henry de Waard Francesca Giampietro Zaida Araujo |
| author_facet | Carlos Fernández de Larrea Jacobus Henry de Waard Francesca Giampietro Zaida Araujo |
| author_sort | Carlos Fernández de Larrea |
| collection | DOAJ |
| description | We report on the measurement of saliva anti-Purified Protein Derivative sIgA and 38kDa antibodies from 127 children, of whom 31 were strong tuberculosis suspects and 96 were healthy contact children. The results concerning the percentage of children with antibody reactivity to PPD and 38kDa antigens showed that, of these 2 antigens, 38kDa induced higher reactivity in patients positive and negative for the Tuberculin Skin Test (28% and 16.6%, respectively) in comparison to controls positive and negative for the TST (11.7% and 7.1%, respectively). There was a statistically significant difference between patients positive and controls negative for the TST. In relation to the Purified Protein Derivative antigen, while 14.2% of patients positive for the TST showed antibody reactivity to the PPD antigen, no patients negative for the TST had reactivity to this antigen. The findings suggest that these two antigens seem be associated with a different development of the mucosal defence mechanisms mediated by sIgA against Mycobacterium tuberculosis.<br>Foram dosados anticorpos sIgA anti-Purified Protein Derivative e 38kDa da saliva de 127 crianças, das quais 31 eram de pacientes altamente suspeitos de tuberculose e 96 eram provenientes de crianças saudáveis, que tiveram contato com pacientes. Os resultados referentes à porcentagem de crianças, reativas ao PPD e ao antígeno 38kDa, mostraram que destes dois antígenos, o 38kDa induziu maior reatividade em pacientes positivos e negativos ao Tuberculin Skin Test (28% e 16,6%, respectivamente), em comparação aos controles positivos e negativos ao TST (11,7% e 7,1%, respectivamente). Houve diferença estatisticamente significativa entre pacientes positivos e controles negativos ao Tuberculin Skin Test. Em relação ao antígeno PPD, enquanto 14,2% de pacientes positivos ao TST mostraram anticorpos reativos ao antígeno Purified Protein Derivative, nenhum paciente negativo ao TST foi reativo ao antígeno. Os achados sugerem que, aparentemente, estes dois antígenos estão associados a desenvolvimento distinto dos mecanismos de defesa da mucosa mediados por sIgA contra Mycobacterium tuberculosis. |
| first_indexed | 2024-04-13T20:45:02Z |
| format | Article |
| id | doaj.art-0cfa7eee8c874507b70ccc281b9666b7 |
| institution | Directory Open Access Journal |
| issn | 0037-8682 1678-9849 |
| language | English |
| last_indexed | 2024-04-13T20:45:02Z |
| publishDate | 2006-10-01 |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
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| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-0cfa7eee8c874507b70ccc281b9666b72022-12-22T02:30:42ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical0037-86821678-98492006-10-0139545646110.1590/S0037-86822006000500007The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantilCarlos Fernández de LarreaJacobus Henry de WaardFrancesca GiampietroZaida AraujoWe report on the measurement of saliva anti-Purified Protein Derivative sIgA and 38kDa antibodies from 127 children, of whom 31 were strong tuberculosis suspects and 96 were healthy contact children. The results concerning the percentage of children with antibody reactivity to PPD and 38kDa antigens showed that, of these 2 antigens, 38kDa induced higher reactivity in patients positive and negative for the Tuberculin Skin Test (28% and 16.6%, respectively) in comparison to controls positive and negative for the TST (11.7% and 7.1%, respectively). There was a statistically significant difference between patients positive and controls negative for the TST. In relation to the Purified Protein Derivative antigen, while 14.2% of patients positive for the TST showed antibody reactivity to the PPD antigen, no patients negative for the TST had reactivity to this antigen. The findings suggest that these two antigens seem be associated with a different development of the mucosal defence mechanisms mediated by sIgA against Mycobacterium tuberculosis.<br>Foram dosados anticorpos sIgA anti-Purified Protein Derivative e 38kDa da saliva de 127 crianças, das quais 31 eram de pacientes altamente suspeitos de tuberculose e 96 eram provenientes de crianças saudáveis, que tiveram contato com pacientes. Os resultados referentes à porcentagem de crianças, reativas ao PPD e ao antígeno 38kDa, mostraram que destes dois antígenos, o 38kDa induziu maior reatividade em pacientes positivos e negativos ao Tuberculin Skin Test (28% e 16,6%, respectivamente), em comparação aos controles positivos e negativos ao TST (11,7% e 7,1%, respectivamente). Houve diferença estatisticamente significativa entre pacientes positivos e controles negativos ao Tuberculin Skin Test. Em relação ao antígeno PPD, enquanto 14,2% de pacientes positivos ao TST mostraram anticorpos reativos ao antígeno Purified Protein Derivative, nenhum paciente negativo ao TST foi reativo ao antígeno. Os achados sugerem que, aparentemente, estes dois antígenos estão associados a desenvolvimento distinto dos mecanismos de defesa da mucosa mediados por sIgA contra Mycobacterium tuberculosis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822006000500007TuberculoseWaraoIgA secretóriaTeste cutâneo da tuberculinaTuberculosisWaraoSecretory IgATuberculin skin test |
| spellingShingle | Carlos Fernández de Larrea Jacobus Henry de Waard Francesca Giampietro Zaida Araujo The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil Revista da Sociedade Brasileira de Medicina Tropical Tuberculose Warao IgA secretória Teste cutâneo da tuberculina Tuberculosis Warao Secretory IgA Tuberculin skin test |
| title | The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil |
| title_full | The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil |
| title_fullStr | The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil |
| title_full_unstemmed | The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil |
| title_short | The secretory immunoglobulin A response to Mycobacterium tuberculosis in a childhood population Resposta da imunoglobulina A secretória ao Mycobacterium tuberculosis em população infantil |
| title_sort | secretory immunoglobulin a response to mycobacterium tuberculosis in a childhood population resposta da imunoglobulina a secretoria ao mycobacterium tuberculosis em populacao infantil |
| topic | Tuberculose Warao IgA secretória Teste cutâneo da tuberculina Tuberculosis Warao Secretory IgA Tuberculin skin test |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822006000500007 |
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