Exposure to metal mixtures in multiple critical periods of development and adolescent neuromotor function

在发育和青少年神经运动功能的多个关键时期接触金属混合物

• 批准号: 10464009
• 负责人: Alexa Friedman
• 金额: $ 1.99万
• 依托单位: BOSTON UNIVERSITY MEDICAL CAMPUS
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2022-10-16
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10464009
• 关键词: 14 year old; Academic achievement; Adolescence; Adolescent; Adverse effects; Affect; Age; Animals; Attention; Behavior; Biological; Biological Markers; Biology; Blood; Brain; Chemicals; Child; Childhood; Chromium; Cognition; Cognitive; Consensus; Copper; Data; Development; Elements; Emotional; Environmental Epidemiology; Environmental Hazards; Exposure to; Fellowship; Functional disorder; Funding; Goals; Hair; Hand; Health; Heterogeneity; Human; Individual; Industrial Waste; Industrialization; Industry; Intervention; Italy; Lead; Life; Link; Manganese; Measures; Mentorship; Metal exposure; Metals; Motor; Nail plate; National Institute of Environmental Health Sciences; Neuraxis; Neurodevelopmental Disorder; Neuropsychological Tests; Outcome; Performance; Personal Satisfaction; Posture; Predisposition; Pregnancy; Production; Productivity; Public Health; Quality of life; Reporting; Research; Role; Saliva; Social Development; Social Interaction; Societies; Soil; Speed; Statistical Methods; Time; Tooth structure; Toxic effect; Toxicology; Training; Tremor; United States National Institutes of Health; Urine; Work; aged; base; biomarker selection; career; cohort; community living; critical period; deciduous tooth; dexterity; early childhood; early life exposure; epidemiology study; girls; health goals; in utero; infancy; innovation; insight; metal poisoning; multidisciplinary; neurobehavioral; neurodevelopment; neurotoxicity; novel; pollutant; prenatal; prenatal exposure; secondary analysis; toxicant

Project Summary/Abstract Evidence for neurodevelopmental toxicity from exposure to environmental metals is mounting. Recent studies have found that neurotoxicity may depend on when during development the metal exposure occurs (e.g., in utero versus childhood) and that metals have synergistic adverse effects on children's neurodevelopment. Our study aims to elucidate the role of childhood environmental metal exposure on neuromotor function, a largely understudied neurodevelopmental outcome, by examining cumulative and interactive associations with a common industrial metal mixture. The proposed research in this F31 will use previously collected data from the Public Health Impact of Mixed Element exposure (PHIME) study, comprised of 720 children (ages 10-14 years) with varied airborne exposure to ferroalloy industry pollutants in Italy. Under the mentorship of a multidisciplinary team of experts in environmental epidemiology, neurobehavioral toxicology, exposure biology, statistical methods and chemical mixtures, Alexa Friedman (PI) proposes to estimate the associations of an industrially relevant metal mixture of manganese, copper, chromium and lead with neuromotor function in multiple critical periods of development. We will evaluate the relationship between metals, measured in multiple biomarkers (teeth, hair, nails, blood, saliva, urine) that represent exposure from the prenatal period through adolescence, and a battery of neuropsychological tests that evaluate motor function. We will use state- of-the-art statistical approaches, including Bayesian Kernel Machine Regression and quantile-based g- computation for metal mixtures, and hierarchical variable selection to examine biomarker selection. This research will inform our current understanding of metal associations with children's neuromotor function and provide insights for targeted interventions to reduce metals exposure. It also targets several NIEHS strategic goals including the study of co-exposures in communities living near environmental hazards and the innovative use of exposure data across critical developmental windows.

项目总结/文摘