Reduction of rat pleural microvilli caused by noise pollution.

Authors:
Maria Joao Oliveira
Maria Joao Oliveira
Abel Salazar Institute for Biomedical Sciences
Portugal
Artur P Aguas
Artur P Aguas
University of Porto
Portugal
Laura Guimaraes
Laura Guimaraes
University of Porto
Diamantino Freitas
Diamantino Freitas
Abel Salazar Institute for Biomedical Sciences
Portugal

Exp Lung Res 2003 Oct-Nov;29(7):445-54

Department of Anatomy, ICBAS, Abel Salazar Institute for Biomedical Sciences, UMIB and IBMC, Porto, Portugal.

Scanning electron microscopy (SEM) was used to investigate whether chronic exposure to noise modifies pleural morphology. Rats were submitted to 8-h/day schedule of noise that is similar to the working hours at cotton-mill rooms. Morphometry of the area occupied by microvilli on the pleural surface showed a decrease in microvilli after 3 months of rat exposure to noise. The reduction of microvilli was 10% after 3 months of noise exposure (reaching 20% after 7 months of noise treatment) and is consistent with pleural effusions found in some of the patients working in noise-polluted environments.

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June 2004
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