Análise de resistência a antimicrobianos de cepas de Mycobacterium tuberculosis isoladas no Estado de Goiás

• Ano de defesa: 2010
• Autor(a) principal: SANTOS, Lorena Cristina
• Orientador(a): KIPNIS, André
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Doutorado em Medicina Tropical
• Departamento: Ciências da Saúde
• País: BR
• Palavras-chave em Português: Tuberculose; resistência; MDR-TB; 1. Tuberculose Goiás (Estado) 2. Multidrogas resistentes. 3. Mycobacterium tuberculosis
• Palavras-chave em Inglês: Tuberculosis, resistance, MDR-TB
• Área do conhecimento CNPq: CNPQ::CIENCIAS DA SAUDE::MEDICINA
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tde/1567

Tuberculosis (TB) is a serious global public health. In Brazil for the confirmed TB cases is recommended a multi-drug therapy regimen which combines different drugs during at least 6 month. However, because of treatment inconsistency, the emergency and spread of drug resistant M. tuberculosis become a serious threat. Actually, strains resistant to at least one drug used in the TB treatment have been one of the main factor that avoid the effective TB control. According to WHO M. tuberculosis strains that are resistant to at least INH and RMP, the key drugs used in the TB treatment, are considered multidrug resistant (MDRTB). The main mutations responsible for INH and RMP resistance occur at some specific regions in the katG, inhA and rpoB genes. We analyzed by phenotypic and genotypic methods the susceptibility profile of M. tuberculosis isolated from 132 patients treated at a reference hospital in Goiânia-Goiás, between January of 2006 and July of 2007 and then performed the resistant strains genotypic identifications by RFLP-IS6110. Additionally, clinical and epidemiological informations from the patients was collected. A high frequency of drug resistance was observed in previously untreated patients (13.6% to at least one antibiotic and 6.1% MDR-TB), and a high DNA polymorphism was observed among these strains. Our results suggest that the prevalence of resistant TB in Goiás is underestimated and that resistance in new TB cases was not associated with an outbreak in this region.