Pulmonary tuberculosis: evaluation of interferon-gamma levels as an immunological healing marker based on the response to the Bacillus Calmette-Guerin
Mem. Inst. Oswaldo Cruz
;
99(3): 283-287, May 2004. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-361996
RESUMO
Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis whose interaction with the host may lead to a cell-mediated protective immune response. The presence of interferon-gamma is related to this response. With the purpose of understanding the immunological mechanisms involved in this protection, the lymphoproliferative response, IFN-gamma and other cytokines like interleukin (IL-5, IL-10), and tumor necrosis factor alpha (TNF-alfa) were evaluated before and after the use of anti-TB drugs on 30 patients with active TB disease, 24 healthy household contacts of active TB patients, with positive purified protein derivative (PPD) skin tests (induration > 10 mm), and 34 asymptomatic individuals with negative PPD skin test results (induration < 5 mm). The positive lymphoproliferative response among peripheral blood mononuclear cells of patients showed high levels of IFN-gamma, TNF-alfa, and IL-10. No significant levels of IL-5 were detected. After treatment with rifampicina, isoniazida, and pirazinamida, only the levels of IFN-gamma increased significantly (p < 0.01). These results highlight the need for further evaluation of IFN-gamma production as a healing prognostic of patients treated.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Tuberculosis Pulmonar
/
Leucocitos Mononucleares
/
Vacuna BCG
/
Citocinas
/
Antituberculosos
Tipo de estudio:
Estudio pronóstico
Límite:
Adolescente
/
Adulto
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2004
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Prefeitura de Belo Horizonte/BR
/
Universidade Federal de Minas Gerais/BR
/
Universidade Federal do Piauí/BR
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