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Detecção do risco de desenvolver reação mediante avaliação dos niveis de anticorpos anti-PGL-1 e anti-NDO-LID-1 em amostras de soros de pacientes com hanseniase, na vigência e na ausência de episódios reacionais / Detection of the risk of developing reaction by evaluating levels of anti-PGL-1 and Anti-NDO-LID-1 antibodies, in serum samples of leprosy patients, in the effectiveness and in the absence of reactive episodes
Bauru; s.n; 2017. 18 p. tab, graf.
Non-conventional in Portuguese | Sec. Est. Saúde SP, SESSP-ILSLPROD, Sec. Est. Saúde SP, SESSP-ILSLACERVO, Sec. Est. Saúde SP, SESSP-PAPSESSP, Sec. Est. Saúde SP | ID: biblio-1084225
Responsible library: BR191.1
Localization: BR191.1; 091/CD
RESUMO
Pacientes com hanseníase podem apresentar surtos reacionais (reação tipo I e reação tipo II). Métodos sorológicos são desenvolvidos visando obter marcadores laboratoriais que auxiliem o diagnóstico precoce destes episódios. Diante disto, o objetivo deste estudo foi avaliar níveis de anticorpos de pacientes com hanseníase no momento do diagnóstico, com ou sem reação, e associar os resultados obtidos com tais fenômenos. Para isto, foram obtidos dados clínicos de prontuários e amostras séricas de 224 pacientes, diagnosticados no período de 2009/2010, no município de Rondonópolis-MT. Foram realizadas quantificações de anticorpos IgM anti-PGL-1 do Mycobacterium leprae (M. leprae) pelo método de ELISA, e detecção semiquantitativa de IgG/IgM anti-NDO-LID-1 pelo teste rápido. Obtivemos baixos níveis sorológicos de anti-PGL-1 e anti-NDO-LID-1 para os pacientes tuberculóides (T) (1,56% - 15,62%) e dimorfos-tuberculóides (DT) (7,95% - 26,13%), níveis médios nos dimorfos-dimorfos (DD) (47,91% - 68,75%) e elevados nos virchovianos (V) (93,33% - 100%) e dimorfos-virchovianos (DV) (88,88% - 100%). Ao compararmos os grupos reacionais (RI e RII) com os sem reação (SR) no momento do diagnóstico, observamos uma diferença estatística significativa entre os grupos, sendo que os pacientes com RII apresentaram maior resposta sorológica para ambos testes (anti-PGL-1 66,66% e anti-NDO-LID-1 91,66%). Os pacientes que vieram a desenvolver reação após o diagnóstico inicial, também apresentaram significativa positividade aos dois testes em comparação com aqueles que permaneceram sem reação no período estudado (p<0,0001). Estes resultados permitem concluir que os testes sorológicos podem contribuir para um diagnóstico precoce de RII, sendo que o teste anti-NDO-LID-1 demonstrou ser melhor indicador.
ABSTRACT
Patients with leprosy may present reactional outbreaks which are classified as Type I or Reverse Reaction and Type II or Nodose Hansenic Erythema. Serological methods have been developed aiming to obtain data that subsidize clinical and laboratory markers for the early diagnosis of these episodes. Therefore, the objective of this study was to evaluate antibody levels of leprosy patients at the time of diagnosis, with or without reactional episodes and to associate the results obtained with such phenomena. For this, clinical data of medical records and serum samples of 224 patients, diagnosed in the 2009/2010 period, were obtained in the municipality of Rondonópolis-MT. Quantifications of anti-PGL-1 IgM antibodies of Mycobacterium leprae (M. leprae) were performed by the ELISA method, and semiquantitative detection of anti-NDO-LID-1 IgM/IgG by the rapid test. We obtained low serological levels of anti-PGL-1 and anti-NDO-LID-1 for tuberculoid (T) (1.56% - 15.62%) and borderline-tuberculoid (BT) patients (7.95% - 26,13%), medium levels in the borderline-borderline (BB) (47.91% - 68.75)% and high in lepromatous (L) (93.33% - 100%) and borderline-lepromatous BL) , 88,0% - 100%). In addition, when comparing the reactional groups (RI and RII) with the non-reactive (SR) groups at the time of diagnosis, we observed a statistically significant difference between the groups, and patients with RII presented higher serological response for both anti-PGL-1 and for anti-NDO-LID-1 (66.66% - 91.66%). About the patients who developed a reaction after the initial diagnosis, they also showed significant positivity for both anti-PGL-1 and anti-NDO-LID-1 in comparison to the patients who stayed non-reactives in the study period (p < 0.0001). These results allow us to conclude that serological tests may contribute to an early diagnosis of RII, and the anti-NDO-LID-1 test demonstrated to be a better indicator.
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Collection: National databases / Brazil Health context: Neglected Diseases Health problem: Leprosy / Neglected Diseases Database: Sec. Est. Saúde SP / SESSP-ILSLACERVO / SESSP-ILSLPROD / SESSP-PAPSESSP Main subject: Leprosy / Mycobacterium leprae Type of study: Diagnostic study / Etiology study / Risk factors / Screening study Language: Portuguese Year: 2017 Document type: Non-conventional
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Collection: National databases / Brazil Health context: Neglected Diseases Health problem: Leprosy / Neglected Diseases Database: Sec. Est. Saúde SP / SESSP-ILSLACERVO / SESSP-ILSLPROD / SESSP-PAPSESSP Main subject: Leprosy / Mycobacterium leprae Type of study: Diagnostic study / Etiology study / Risk factors / Screening study Language: Portuguese Year: 2017 Document type: Non-conventional
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