Air Pollution, the Aging Brain and Alzheimer's Disease

空气污染、大脑老化和阿尔茨海默病

基本信息

批准号：
9512117
负责人：
Gail Li
金额：
$ 15.61万
依托单位：
UNIVERSITY OF WASHINGTON
依托单位国家：
美国
项目类别：
财政年份：
2016
资助国家：
美国
起止时间：
2016-09-30 至 2021-07-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9512117
关键词：
Address Adult Adverse effects Age Aging Air Pollutants Air Pollution Alzheimer&apos s Disease Alzheimer&apos s disease risk Amyloid beta-Protein Animals Antioxidants Area Ascorbic Acid Autopsy Back Behavior Biological Markers Blood - brain barrier anatomy Blood Circulation Brain Cerebrovascular Disorders Child Cognition Cognitive Collaborations Communities Complex Mixtures Data Databases Dementia Diagnosis Disease Elderly Enrollment Environmental Exposure Environmental Health Epidemiologist F2-Isoprostanes Freezing Functional disorder Funding Gases Gene-Modified Genetic Genotype Goals Health Hydroxymethylglutaryl-CoA Reductase Inhibitors Impaired cognition In Vitro Incidence Individual International Intervention Lewy Bodies Lewy Body Disease Link Location Longitudinal prospective study Measurement Measures Medical Modeling Molecular Monitor National Institute of Environmental Health Sciences Natural History Nerve Degeneration Neurodegenerative Disorders Nitrogen Oxides Olfactory Pathways Outcome Oxidative Stress Ozone Participant Particulate Matter Pathologic Pathology Persons Pharmaceutical Preparations Pharmacy facility Phenotype Physicians Play Pollution Population Positioning Attribute Prevention Process Prospective cohort study Public Health Recording of previous events Records Regulation Research Research Design Resources Risk Risk Factors Role Sampling Science Scientist Site Strategic Planning Targeted Research Therapeutic Time United States National Institutes of Health Vitamin E aging brain aging population ambient air pollution base brain health cardiovascular health cerebral atrophy cerebrovascular cognitive function cohort computerized data resource epidemiology study fine particles follow-up fundamental research genetic variant healthy aging improved insight misfolded protein multidisciplinary neuroinflammation neuropathology neurotoxic neurotoxicity novel particle pollutant prospective public health priorities residence respiratory health response sound spatiotemporal tau Proteins

项目摘要

Prevention of cognitive decline and delay of onset of Alzheimer's disease (AD) are public health priorities, and improving brain health is a firm commitment of the National Institutes of Health. Since ambient air pollution exposures are pervasive and modifiable, they are an appropriate target for research on brain health. Evidence for air pollution links to neurodegeneration is accumulating with recent studies implicating fine particulate matter (PM2.5), ozone (O3), oxides of nitrogen (NOx and NO2) and traffic-related pollution in lower cognitive function, cognitive decline, incidence of AD and all-cause dementia, and brain atrophy. The effects of air pollutants on neuropathology in the aging brain are unknown. Deeper understanding of air pollutants as potential risk factors will lead to better characterization of disease mechanisms. Improvements in public health will follow since air pollution exposures can be modified by changes in regulations and individual behaviors. Few epidemiological studies have been well-positioned to overcome many of the inherent weaknesses in exposure assessment, study design, and outcome data availability, including a unique set of neuropathology measures, needed to advance our understanding of the role of time-varying air pollution exposures on cognitive health, AD, and aging. This study is a unique collaboration between leading experts in the fields of aging and AD research, statistical, and environmental health sciences. It will use a long-term prospective cohort study design to examine the effects of air pollution on cognitive decline, all-cause dementia and AD incidence, and brain neuropathologies. It leverages the community-based sample of 5,088 adults free of dementia at the time of enrollment from the NIA-funded Adult Changes in Thought (ACT) study. ACT is an outstanding resource representative of the community with prospective, long-term (up to 20 years), and high- quality cognitive follow-up, careful diagnosis of incident dementia by subtype, and outstanding data availability including 633 brain autopsies, genetic data, and decades of extensive medical, and residential history data extending decades prior to study enrollment. We will collect new air pollution measurements to develop for ACT participants state-of-the-art long-term average air pollution predictions for ambient PM2.5, O3, NOx, and NO2 of the highest quality to address our study hypotheses. Our overarching goal is to identify air pollution risk factors and quantify their effects in order to promote healthy aging. This study provides an extraordinary opportunity to advance our comprehensive understanding of the effects of air pollution exposures on cognition in the aging brain and on risk of AD. It aligns well with the 2012-2017 NIEHS Strategic Plan by advancing fundamental research using state-of-the-art exposure science.

预防认知能力下降和延缓阿尔茨海默病 (AD) 的发病是公共卫生的首要任务，改善大脑健康是美国国立卫生研究院的坚定承诺。由于环境空气污染暴露是普遍且可改变的，它们是大脑健康研究的适当目标。证据最近的研究表明空气污染与神经退行性疾病的联系越来越多，这些研究表明细颗粒物认知能力较低的物质（PM2.5）、臭氧（O3）、氮氧化物（NOx 和 NO2）以及与交通相关的污染功能、认知能力下降、AD 和全因痴呆的发病率以及脑萎缩。空气的影响污染物对衰老大脑神经病理学的影响尚不清楚。更深入地了解空气污染物潜在的危险因素将有助于更好地描述疾病机制。公共卫生的改善由于空气污染暴露可以通过法规和个人行为的变化来改变，因此将会随之而来。很少有流行病学研究能够很好地克服许多固有的弱点暴露评估、研究设计和结果数据可用性，包括一套独特的神经病理学需要采取措施来加深我们对随时间变化的空气污染暴露对环境的影响的理解认知健康、AD 和衰老。这项研究是各领域领先专家之间的独特合作衰老和 AD 研究、统计和环境健康科学。它将用长期的前瞻性队列研究设计旨在检验空气污染对认知能力下降、全因痴呆和 AD 的影响发病率和脑神经病理学。它利用了基于社区的 5,088 名成年人样本，没有在 NIA 资助的成人思想变化 (ACT) 研究中入组时患有痴呆症。 ACT 是一个具有前瞻性、长期性（长达20年）、高价值的社会优秀资源代表高质量的认知随访、按亚型仔细诊断痴呆症事件以及出色的数据可用性包括 633 份脑部尸检、遗传数据以及数十年的广泛医疗和居住史数据在入学前延长几十年。我们将收集新的空气污染测量数据，以制定 ACT 参与者对环境 PM2.5、O3、NOx 和最高质量的 NO2 可以满足我们的研究假设。我们的首要目标是识别空气污染风险因素并量化其影响，以促进健康老龄化。这项研究提供了非凡的有机会促进我们全面了解空气污染暴露对认知的影响大脑老化和 AD 风险。它与 2012-2017 年 NIEHS 战略计划非常吻合，通过推进使用最先进的暴露科学进行基础研究。