Hematological and immunological effects of stress of air traffic controllers in northeastern Brazil

AUTOR(ES)

Ribas, Valdenilson Ribeiro, Martins, Hugo André de Lima, Viana, Marcelo Tavares, Fraga, Simone do Nascimento, Carneiro, Severino Marcos de Oliveira, Galvão, Bruno Henrique Andrade, Bezerra, Alice Andrade, Castro, Célia Maria Machado Barbosa de, Sougey, Everton Botelho, Castro, Raul Manhães de

FONTE

Revista Brasileira de Hematologia e Hemoterapia

DATA DE PUBLICAÇÃO

2011-06

RESUMO

BACKGROUND: Several studies have shown that stress and emotional reactions can affect immune responses in animals and humans. OBJECTIVE: The aim of this study was to evaluate hematological and immunological effects of stress on air traffic controllers. METHODS: Thirty air traffic controllers and 15 aeronautical information service operators were evaluated. The groups were divided as information service operators with 10 years or more of experience (AIS>10) and with less than 10 years in the profession (AIS<10) and air traffic controllers with 10 years or more of experience (ATCo>10) and with less than 10 years in the profession (ATCo<10). Blood samples were drawn at 8:00 a.m. and 2:00 p.m. The paired t-test was used to compare monocyte and nitric oxide concentrations and ANOVA was used for the other parameters. RESULTS: The ATCo>10 group presented a significantly lower phagocytosis rate of monocytes at 2:00 p.m. compared to 8:00 a.m. Moreover, the ATCo>10 group presented lower hemoglobin, mean corpuscular hemoglobin concentration, platelet and leukocyte levels, and increased cortisol concentrations at 8:00 a.m. compared to the other groups. Additionally, this group had lower phagocytosis rate of monocytes, and hemoglobin, platelet, leukocyte, basophils and nitric oxide levels at 2:00 p.m. compared to the other groups. CONCLUSION: Stress seems to greatly affect immune responses of air traffic controllers with more than ten years of experience.

Documentos Relacionados

• Hoarseness and vocal tract discomfort and associated risk factors in air traffic controllers
• pH in exhaled breath condensate and nasal lavage as a biomarker of air pollution-related inflammation in street traffic-controllers and office-workers
• Air Traffic and Infectious Disease
• Effects of ozone therapy on hematological, biochemical, and oxidative stress parameters of vaquejada athlete horses
• Clean air matters: an overview of traffic-related air pollution and pregnancy