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Research Article

Cytogenetic biomonitoring of peripheral blood and oral mucosa cells from car painters

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Pages 497-501 | Received 14 Dec 2011, Accepted 23 Mar 2012, Published online: 09 Apr 2012
 

Abstract

The aim of the present study was to comparatively evaluate genomic damage and cellular death in exfoliated oral mucosa cells and peripheral blood from car painters. A total of 24 car painters and 19 healthy controls (non-exposed individuals) were included in this setting. Individuals had epithelial cells from cheek mucosa (left and right side) mechanically exfoliated, placed in fixative and dropped in clean slides which were checked for the specific nuclear phenotypes. A total of 5 μL from peripheral blood was collected for the single cell gel (comet) assay. The results pointed out statistically significant differences (p < 0.05) of micronucleated oral mucosa cells from car painters. In addition, DNA damage was detected in peripheral blood cells by single cell gel (comet) assay. Nevertheless, exposure to car paints did not cause increases other nuclear alterations closely related to cytotoxicity such as karrhyorexis, pyknosis and karyolysis in buccal mucosa cells. In summary, the results of the present study suggest that car painters comprise a high risk group since paints can induce genotoxic and mutagenic effects in peripheral blood and oral mucosa cells, respectively.

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