logo BDSP

Base documentaire


  1. Increase in CD8+and CD4+T lymphocytes in patients with vibroacoustic disease.

    Article - En anglais

    Introduction 

    Some workers employed by the aviation industry are exposed to large pressure amplitude and low frequency (LPALF) noise (>=90 dB SPL, <=500 Hz) and have developed vibroacoustic disease (VAD), a whole-body noise-induced pathology.

    Since VAD patients have an increased prevalence of respiratory and skin infections, we investigated whether these individuals had any quantitative changes in the number of peripheral blood cell populations.

    Also, we investigated whether different types of noise environments are related to cell quantification.

    Methods 

    Quantification of peripheral blood cell populations was performed in venous blood samples of 34 VAD-diagnosed patients, and 41 controls.

    Leukocytes, monocytes, granulocytes, and surface phenotypes of CD8+and CD4+T lymphocytes were considered.

    Results 

    We found that VAD patients showed a statistically significant elevation in the number of circulating CD8+and CD4+T lymphocytes when compared with the control population, but not when compared among different noise-environments.

    Monocyte and granulocyte populations did not register significant differences.

    Conclusion 

    VAD patients present enhancement in the number of circulating cytotoxic T lymphocytes (CD8+and CD4+T cells) thus indicating that this environmental disease is associated with quantitative changes in immune cells.

    Mots-clés Pascal : Bruit, Basse fréquence, Vibration, Nuisance acoustique, Industrie aéronautique, Exposition professionnelle, Traumatisme, Agent physique, Lymphocyte T, Immunomodulation, Analyse quantitative, Aviation pathologie, Médecine aérospatiale, Médecine travail, Facteur milieu, Homme, Antigene CD4, Antigène CD8

    Mots-clés Pascal anglais : Noise, Low frequency, Vibration, Noise pollution, Aeronautic industry, Occupational exposure, Trauma, Physical agent, T-Lymphocyte, Immunomodulation, Quantitative analysis, Aviation medicine, Space medicine, Occupational medicine, Environmental factor, Human

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0253187

    Code Inist : 002B16M. Création : 16/11/1999.