School of Public Health

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The collections in this community comprise faculty research works, as well as graduate theses and dissertations.

Note: Prior to July 1, 2007, the School of Public Health was named the College of Health & Human Performance.

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Author: search.filters.author.Puett, Robin C.

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    Long-term exposure to particulate air pollution and brachial artery flow-mediated dilation in the Old Order Amish
    (Springer Nature, 2020-05-14) Salimi, Shabnam; Yanosky, Jeff D.; Huang, Dina; Montressor-Lopez, Jessica; Vogel, Robert; Reed, Robert M.; Mitchell, Braxton D.; Puett, Robin C.
    Atmospheric particulate matter (PM) has been associated with endothelial dysfunction, an early marker of cardiovascular risk. Our aim was to extend this research to a genetically homogenous, geographically stable rural population using location-specific moving-average air pollution exposure estimates indexed to the date of endothelial function measurement. We measured endothelial function using brachial artery flow-mediated dilation (FMD) in 615 community-dwelling healthy Amish participants. Exposures to PM < 2.5 μm (PM2.5) and PM < 10 μm (PM10) were estimated at participants’ residential addresses using previously developed geographic information system-based spatio-temporal models and normalized. Associations between PM exposures and FMD were evaluated using linear mixed-effects regression models, and polynomial distributed lag (PDL) models followed by Bayesian model averaging (BMA) were used to assess response to delayed effects occurring across multiple months. Exposure to PM10 was consistently inversely associated with FMD, with the strongest (most negative) association for a 12-month moving average (− 0.09; 95% CI: − 0.15, − 0.03). Associations with PM2.5 were also strongest for a 12-month moving average but were weaker than for PM10 (− 0.07; 95% CI: − 0.13, − 0.09). Associations of PM2.5 and PM10 with FMD were somewhat stronger in men than in women, particularly for PM10. Using location-specific moving-average air pollution exposure estimates, we have shown that 12-month moving-average estimates of PM2.5 and PM10 exposure are associated with impaired endothelial function in a rural population.
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    Long-Term Exposure to Ambient Air Pollution and Type 2 Diabetes in Adults
    (Current Epidemiology Reports (Springer Link), 2019-02-09) Puett, Robin C.; Quirós-Alcalá, Lesliam; Montresor-López, Jessica A; Tchangalova, Nedelina; Dutta, Anindita; Payne-Sturges, Devon; Yanosky, Jeff D.
    PURPOSE OF REVIEW We identified 24 publications from January 2010 until September 2018 in the peer-reviewed literature addressing the relationship of long-term air pollution exposures and type 2 diabetes-related morbidity and mortality among adults. We examine key methodological issues, synthesize findings, and address study strengths and limitations. We also discuss biological mechanisms, policy implications, and future research needed to address existing knowledge gaps. RECENT FINDINGS In general, the studies included in this review employed rigorous methodology with large sample sizes, appropriate study designs to maximize available cohort study or administrative data sources, and exposure modeling that accounted for spatial patterns in air pollution levels. Overall, studies suggested increased risks of type 2 diabetes-related morbidity and mortality among adults associated with increased exposures; however, findings were not uniformly positive nor statistically significant. SUMMARY Current research is particularly limited regarding the biological mechanisms involved and the relationship between ozone and diabetes. Additionally, more research is needed to distinguish clearly the effects of nitrogen oxides from those of other pollutants and to identify potential subpopulations with greater susceptibility for certain pollutant exposures. A better understanding of the potential link between long-term ambient air pollution exposures and type 2 diabetes may provide opportunities for the reduction of health risks and inform future interventions for environmental protection and diabetes management.