Validation of a real-time PCR assay for the molecular identification of Mycobacterium tuberculosis
Braz. j. microbiol
;
45(4): 1362-1369, Oct.-Dec. 2014. graf, tab
Artigo
em Inglês
| LILACS
| ID: lil-741288
ABSTRACT
Mycobacterium tuberculosis is the major cause of tuberculosis in humans. This bacillus gained prominence with the occurrence of HIV, presenting itself as an important opportunistic infection associated with acquired immunodeficiency syndrome (AIDS). The current study aimed to develop a real-time PCR using Eva Green technology for molecular identification of M. tuberculosis isolates. The primers were designed to Rv1510 gene. Ninety nine samples of M. tuberculosis and sixty samples of M. bovis were tested and no sample of the bovine bacillus was detected by the qPCR. Statistical tests showed no difference between the qPCR and biochemical tests used to identify the Mycobacterium tuberculosis. The correlation between tests was perfect with Kappa index of 1.0 (p < 0.001, CI = 0.84 - 1.0). The diagnostic sensitivity and specificity were 100% (CI = 95.94% - 100%) and 100% (CI = 93.98% - 100%). This qPCR was developed with the goal of diagnosing the bacillus M. tuberculosis in samples of bacterial suspension. TB reference laboratories (health and agriculture sectors), public health programs and epidemiological studies probably may benefit from such method.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Tuberculose
/
Reação em Cadeia da Polimerase em Tempo Real
/
Mycobacterium tuberculosis
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. j. microbiol
Assunto da revista:
Microbiologia
Ano de publicação:
2014
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Laboratório Nacional Agropecuário de Minas Gerais/BR
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