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Feminization of the agricultural labor is common in Mexico; these women and their families are vulnerable to several health risks including genotoxicity. Previous papers have presented contradictory information with respect to indirect exposure to pesticides and DNA damage. We aimed to evaluate the genotoxic effect in buccal mucosa from female farmers and children, working in the agricultural valley of Maneadero, Baja California. Frequencies of micronucleated cells (MNc) and nuclear abnormalities (NA) in 2000 cells were obtained from the buccal mucosa of the study population ( n  = 144), divided in four groups: (1) farmers ( n  = 37), (2) unexposed ( n  = 35), (3) farmers' children ( n  = 34), and (4) unexposed children ( n  = 38). We compared frequencies of MNc and NA and fitted generalized linear models to investigate the interaction between these variables and exposition to pesticides. Differences were found between farmers and unexposed women in MNc ( p  < 0.0001), CC ( p  = 0.3376), and PN ( p  < 0.0001). With respect to exposed children, we found higher significant frequencies in MNc ( p  < 0.0001), LN ( p  < 0.0001), CC ( p  < 0.0001), and PN ( p  < 0.004) when compared to unexposed children. Therefore working as a farmer is a risk for genotoxic damage; more importantly indirectly exposed children were found to have genotoxic damage, which is of concern, since it could aid in future disturbances of their health.

journal of toxicology

Biomonitoring with Micronuclei Test in Buccal Cells of Female Farmers and Children Exposed to Pesticides of Maneadero Agricultural Valley, Baja California, Mexico