A longitudinal study comparing the impact of pesticide exposure on cognitive abilities of Latinx children from rural farmworker and urban non-farmworker families
Monica Soni , Haiying Chen , Milton J. Cepeda , Lesley Berenson , Sydney Smith , Kim A. Anderson , Sara A. Quandt , Thomas A. Arcury , Paul J. Laurienti , Jonathan H. Burdette
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引用次数: 0
Abstract
Growing evidence shows that pesticide exposure contributes to numerous adverse health effects. Pesticide exposure can be especially problematic for vulnerable populations, and even more so for children in vulnerable populations who are still developing, such as Latinx children. Several studies have demonstrated the negative cognitive effects of prenatal exposure to pesticides, particularly organophosphates (OPs). We previously reported the results from a baseline study (Dobbins et al., 2022) designed to compare the cognitive abilities of 8-year-old children from rural, farmworking families and urban, non-farmworking families. We found that the children from both populations have considerable pesticide exposure, but to different chemicals. The children of farmworkers had greater exposure to OPs, while the children of non-farmworkers had greater exposure to organochlorines (OCs) and pyrethroids. Using the Weschler Intelligence Scale for Children–Fifth Edition (WISC-V), baseline analyses determined that children of non-farmworkers exhibited lower cognitive scores, specifically on the VSI (visual spatial) and VCI (verbal comprehension) indices. The current study examined the longitudinal significance of these findings in the same participants over a 2–3-year period. We present evidence that children from non-farmworking families exhibited significant declines on the FRI (fluid reasoning index) of the WISC-V. The children from farmworker families did not decline, and this longitudinal difference between the groups was significant. Our findings further suggest that these declines in FRI scores are likely due to greater cumulative OC exposure over the entire longitudinal period.
期刊介绍:
Neurotoxicology and Teratology provides a forum for publishing new information regarding the effects of chemical and physical agents on the developing, adult or aging nervous system. In this context, the fields of neurotoxicology and teratology include studies of agent-induced alterations of nervous system function, with a focus on behavioral outcomes and their underlying physiological and neurochemical mechanisms. The Journal publishes original, peer-reviewed Research Reports of experimental, clinical, and epidemiological studies that address the neurotoxicity and/or functional teratology of pesticides, solvents, heavy metals, nanomaterials, organometals, industrial compounds, mixtures, drugs of abuse, pharmaceuticals, animal and plant toxins, atmospheric reaction products, and physical agents such as radiation and noise. These reports include traditional mammalian neurotoxicology experiments, human studies, studies using non-mammalian animal models, and mechanistic studies in vivo or in vitro. Special Issues, Reviews, Commentaries, Meeting Reports, and Symposium Papers provide timely updates on areas that have reached a critical point of synthesis, on aspects of a scientific field undergoing rapid change, or on areas that present special methodological or interpretive problems. Theoretical Articles address concepts and potential mechanisms underlying actions of agents of interest in the nervous system. The Journal also publishes Brief Communications that concisely describe a new method, technique, apparatus, or experimental result.