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Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2022.tde-16022023-111551
Document
Author
Full name
Clarissa Carvalho de Miranda Valões
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2022
Supervisor
Committee
Sallum, Adriana Maluf Elias (President)
Leal, Gabriela Nunes
Magalhães, Claudia Saad
Souza, Fernando Henrique Carlos de
Title in Portuguese
A influência de fatores ambientais sobre a Dermatomiosite Juvenil, curso e a refratariedade ao tratamento
Keywords in Portuguese
Dermatomiosite
Doença ambiental
Exposição ocupacional
Poluição do ar
Poluição por fumaça de Tabaco
Tratamento
Abstract in Portuguese
Objetivo: Avaliar a influência de fatores ambientais sobre a DMJ, seu curso e refratariedade ao tratamento. Métodos: Caso-controle com 35 pacientes seguidos em um hospital terciário. Todos os participantes residiam na região metropolitana de São Paulo. Foram classificados de acordo com o curso da doença em monocíclico, policíclio ou crônicos e se foram refratários ou não ao tratamento. A concentração diária dos poluentes (material particulado, dióxido de enxofre, dióxido de nitrogênio, ozônio e monóxido de carbono) foram fornecidos pela Companhia Ambiental do Estado de São Paulo. Os dados dos participantes foram obtidos por preenchimento de questionário. O estudo foi aprovado pelo Comitê de Ética. Resultados: Quinze pacientes tinham curso monocíclio e 19 curso policíclico/crônico. Dezoito pacientes foram refratários ao tratamento. A exposição ocupacional materna a um dos agentes inaláveis (OR=17,88; IC 95% 2,15-148,16, p=0,01) e a exposição ao O3 no quinto ano de vida (terceiro tercil >86,28g/m3; OR=6,53, IC95% 1,60-26,77, p=0,01) foram fatores de risco para DMJ na análise multivariada nos modelos de regressão logística. A presença de fábricas/pedreiras a uma distância entre 200-500 metros das creches/escolas foi um fator protetor para a doença. A exposição aos poluentes atmosféricos/ fumaça do cigarro/ outras fontes emissoras de poluentes inalatórios nos locais de moradia e trabalho da mãe no período gestacional não foi associada à DMJ, nem ao curso da doença e refratariedade ao tratamento. Conclusão: A exposição materna aos poluentes ocupacionais durante a gestação e a exposição ao O3 no quinto ano de vida foram fatores de risco para DMJ
Title in English
The influence of environmental factors related to Juvenile Dermatomyositis (JDM), its course and refractoriness to treatment
Keywords in English
Air pollution
Chronic disease
Dermatomyositis
Environmental illness
Occupational exposure
Tobacco smoking pollution
Treatment
Abstract in English
Objective: To evaluate the influence of environmental factors relating to JDM, its course and refractoriness to treatment. Methods: A case-control study with 35 patients followed up at a tertiary hospital. All resided São Paulo. They were classified according to monocyclic, polycyclic or chronic disease courses and refractoriness to treatment. The daily concentrations of pollutants (inhalable particulate matter-PM10, sulfur dioxide-SO2, nitrogen dioxide-NO2, ozone-O3 and carbon monoxide-CO) were provided by the Environmental Company of São Paulo. Data from the population were obtained through a questionnaire. The study was approved by the Ethics Committee. Results: Fifteen patients had monocyclic course, and 19 polycyclic/chronic courses. Eighteen patients were refractory to treatment. Occupational exposure to one of the inhalable agents (OR=17.88; IC 95% 2.15-148.16, p=0.01) and exposure to O3 in the fifth year of life (third tertile >86.28g/m3; OR=6.53, IC95% 1.60-26.77, p=0.01) were a risk factors for JDM in the multivariate logistic regression model. The presence of a factory/quarry at a distance between 200-500 meters from daycare/school (OR=0.22; IC 95% 0.06-0.77; p=0.02) was a protective factor in the same analysis. Exposure to air pollutants/cigarette smoke/sources of inhalable pollutants in the mother's places of residence and work during the gestational period were not associated with JDM. Maternal exposure to occupational pollutants during pregnancy was not associated with disease course and treatment refractoriness. Conclusion: Risk factors for JDM were maternal occupational exposure and exposure to O3 in the fifth year of life
 
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Publishing Date
2023-02-17
 
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