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Burnt sugarcane harvesting is associated with rhinitis symptoms and inflammatory markers

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Autor(es):
Trevisan, Iara Buriola [1] ; Santos, Ubiratan de Paula [2] ; Leite, Marceli Rocha [2] ; Ferreira, Aline Duarte [1] ; de Alencar Silva, Bruna Spolador [1] ; Coelho Figueira Freire, Ana Paula [1] ; Santa Brigida, Gabriel Faustino [1] ; Cipulo Ramos, Ercy Mara [1] ; Ramos, Dionei [1]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista, Fac Ciencias & Tecnol, Dept Fisioterapia, UNESP, Presidente Prudente, SP - Brazil
[2] Univ Sdo Paulo, Fac Med, Inst Coracao InCor, Div Pulm, Sao Paulo, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Brazilian Journal of Otorhinolaryngology; v. 85, n. 3, p. 337-343, MAY-JUN 2019.
Citações Web of Science: 0
Resumo

Introduction: Burnt sugarcane harvesting requires intense physical exertion in an environment of high temperature and exposure to particulate matter. Objective: To evaluate the effects of burnt sugarcane harvesting on rhinitis symptoms and inflammatory markers in sugarcane workers. Methods: A total of 32 male sugarcane workers were evaluated with questionnaire for rhinitis symptoms, and for inflammatory markers on peripheral blood and nasal lavage, in the non-harvesting, and 3 and 6 months into the sugarcane harvesting period. Weather data and particulate matter fine concentrations were measured in the same day. Results: The particulate matter concentrations in sugarcane harvesting were 27 (23-33 mu g/m(3)), 112 (96-122 mu g/m(3)), and 63 (17-263 mu g/m(3)); 24 h temperatures were 32.6 (25.4-37.4 degrees C), 32.3 (26.7-36.7 degrees C) and 29.7 (24.1-34.0 degrees C) and relative humidities were 45.4 (35.0-59.7%), 47.9 (39.1-63.0%), and 59.9 (34.7-63.2%) in the non-harvesting period, three and 6 months of the harvesting period. The age was 37.4 +/- 10.9 years. The prevalence of rhinitis symptoms was significantly higher at 3 months of the harvesting period (53.4%), compared to non-harvesting period (26.7%; p= 0.039) and at 6 months into the harvesting period (20%; p = 0.006). Concentrations of interleukin 6 (IL-6) in nasal lavage increased after 3 months of the harvesting period compared to the non-harvesting period (p= 0.012). The presence of rhinitis symptoms, after 3 months of the harvesting period, was directly associated with blood eosinophils and inversely associated with neutrophils. Conclusions: After 3 months of work in burnt sugarcane harvesting the prevalence of rhinitis symptoms and IL-6 in nasal lavage increased. Furthermore, eosinophil counts were directly associated with the rhinitis symptoms in the period of higher concentration of particulate matter. (C) 2018 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda. (AU)

Processo FAPESP: 14/08029-0 - Análise da reação inflamatória nasal e sistêmica em cortadores de cana-de-açúcar submetidos à intensa atividade física e exposição a poluição atmosférica
Beneficiário:Iara Buriola Trevisan
Linha de fomento: Bolsas no Brasil - Mestrado