Citas bibligráficas
Rivera, C., (2015). Determinación del daño genotóxico en trabajadores expuestos a formaldehído de tres laboratorios de anatomía patológica de Lima Metropolitana [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/4260
Rivera, C., Determinación del daño genotóxico en trabajadores expuestos a formaldehído de tres laboratorios de anatomía patológica de Lima Metropolitana [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2015. https://hdl.handle.net/20.500.12672/4260
@misc{renati/490000,
title = "Determinación del daño genotóxico en trabajadores expuestos a formaldehído de tres laboratorios de anatomía patológica de Lima Metropolitana",
author = "Rivera Orcoapaza, Cesar",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2015"
}
--- Introduction: Formaldehyde is a genotoxic, mutagenic and carcinogenic chemical heavy and routinely used in pathology laboratories, exposure levels reported in workplaces air often exceed the permissible limit and preventive measures are insufficient, which raise a problem in occupational health. Objectives: To evaluate occupational genotoxic damage and occupational exposure in anatomy pathology workers exposed to formaldehyde in three laboratories of Lima metropolitan area. Design: Cross sectional study. Location: Pathology laboratories of Guillermo Almenara Irigoyen National Hospital, National Institute of Neoplastic Diseases and Central Morgue of Lima. Participants: Health workers in pathology laboratories exposed to formaldehyde. Methods: Evaluation of local genotoxic effects was performed by application of micronucleus and nuclear abnormalities test in exfoliated epithelial cells from buccal mucosa and systemic gentotoxic effect by cometa assay in capillary blood lymphocytes. The study was carried out in 42 workers exposed to formaldehyde and 38 unexposed workers. Additionally, exposure assessment was performed by applying spectrophotometric method with chromotropic acid for determination of formaldehyde in air and compared with permissible exposure limit. Main outcome measures: Local and systemic genotoxic damage and formaldehyde concentration in air. Results: The average formaldehyde in air concentration was 0.96 mg/m3, exceeding permissible exposure limit (TLV-ceiling 0.37 mg/m3). It was found that workers exposed to formaldehyde had increased micronucleous, nuclear buds and binucleations frequencies in buccal epithelium compared to unexposed group (p <0.01). No significant differences were found in any of the comet assay parameters between study groups (p> 0.05). Conclusions: Workers in pathology laboratories exposed to formaldehyde show genotoxic damage in the buccal epithelium. These results, together with the presence of high formaldehyde concentrations in the workplace and its carcinogenic nature, point out high risk that must be prevented by implementing a comprehensive risk management program.
Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons