PIG-A gene mutation as a genotoxicity biomaker in polycyclic aromatic hydrocarbon-exposed barbecue workers

Autor: Yiyi Cao, Jing Xi, Chuanxi Tang, Ziying Yang, Weiying Liu, Xinyue You, Nannan Feng, Xin Yu Zhang, Jingui Wu, Yingxin Yu, Yang Luan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Genes and Environment, Vol 43, Iss 1, Pp 1-9 (2021)
Druh dokumentu: article
ISSN: 1880-7062
DOI: 10.1186/s41021-021-00230-1
Popis: Abstract Background The PIG-A gene mutation assay is a valuable tool for measuring in vivo gene mutations in blood cells. The human PIG-A assay, used as a potential genotoxicity biomarker, is minimally invasive, sensitive, and cost-efficient; however, the relationship between carcinogen exposure and PIG-A mutations is not well understood. Methods We investigated the genotoxic effect of red blood cells using PIG-A assay and lymphocyte cytokinesis-block micronucleus test in barbecue restaurant workers (N = 70) exposed to polycyclic aromatic hydrocarbons (PAHs) and self-identified healthy control subjects (N = 56). Urinary PAH metabolites were measured to evaluate internal exposure levels. Results Multivariate Poisson regression showed that the PAH-exposed workers exhibited significantly higher PIG-A mutant frequency (MF) (8.04 ± 6.81 × 10− 6) than did the controls (5.56 ± 5.26 × 10− 6) (RR = 0.707, 95% CI: 0.615–0.812, P
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