Consulta: creatorFacets:"Cruz,Heidi Lacerda Alves da"
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Data/hora: 06/06/2024 18:15:52

Evaluation of a nested-pcr for Mycobacterium tuberculosis detection in blood and urine samples
Provedor de dados: 58
Autores: Cruz,Heidi Lacerda Alves da; Montenegro,Rosana de Albuquerque; Lima,Juliana Falcão de Araújo; Poroca,Diogo da Rocha; Lima,Juliana Figueirêdo da Costa; Montenegro,Lílian Maria Lapa; Crovella,Sergio; Schindler,Haiana Charifker.
The polymerase chain reaction (PCR) and its variations, such as the nested-PCR, have been described as promising techniques for rapid diagnosis of tuberculosis (TB). With the aim of evaluating the usefulness of a nested-PCR method on samples of blood and urine of patients suspected of tuberculosis we analyzed 192 clinical samples, using as a molecular target the insertion element IS6110 specific of M. tuberculosis genome. Nested-PCR method showed higher sensitivity in patients with extrapulmonary tuberculosis (47.8% and 52% in blood and urine) when compared to patients with the pulmonary form of the disease (sensitivity of 29% and 26.9% in blood and urine), regardless of the type of biological sample used. The nested-PCR is a rapid technique that, even if...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium tuberculosis; Nested-PCR; Blood; Urine; Molecular diagnosis; IS6110 insertion sequence.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100041

DEFB1 gene polymorphisms and tuberculosis in a Northeastern Brazilian population
Provedor de dados: 58
Autores: Silva,Ronaldo Celerino da; Cruz,Heidi Lacerda Alves da; Brandão,Lucas André Cavalcanti; Guimarães,Rafael Lima; Montenegro,Lilian Maria Lapa; Schindler,Haiana Charifker; Segat,Ludovica; Crovella,Sergio.
Abstract β-Defensin-1, an antimicrobial peptide encoded by the DEFB1 gene, is known to play an important role in lung mucosal immunity. In our association study we analyzed three DEFB1 functional polymorphisms -52G&gt;A (rs1799946), -44C&gt;G (rs1800972) and -20G&gt;A (rs11362) in 92 tuberculosis patients and 286 healthy controls, both from Northeast Brazil: no association was found between the studied DEFB1 polymorphisms and the disease. However we cannot exclude that this lack of association could be due to the low number of subjects analyzed, as suggested by the low statistical power achieved for the three analyzed SNPs (values between 0.16 and 0.50).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Innate immunity; DEFB1; Genotyping; Polymorphism.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200389