Polyfluorinated and perfluorinated chemicals (PFCs) are environmentally persistent, detectible across a wide range in almost every American, and linked to worrisome health outcomes in human and animal studies including developmental toxicities, cancers, and thyroid dysfunction. Less consistent evidence also links higher levels of PFCs with risk factors for cardiometabolic disease including higher body mass index (BMI), cholesterol, and metabolic syndrome as well as type 2 diabetes mellitus. However, many prior studies were limited by small sample sizes, reliance on mortality data, and/or weaker designs including cross sectional and case-control rather than prospective cohort studies. We propose to evaluate longitudinal associations of PFCs with detailed cardio-metabolic risk measures in a large, well-characterized population of adults who are at high risk for developing type 2 diabetes and cardiovascular disease (CVD). We will study over 1000 participants enrolled in the Diabetes Prevention Program/Diabetes Prevention Program Outcomes Study (DPPOS) who have stored baseline and follow-up plasma samples available for analysis. These participants with baseline impaired glucose tolerance were randomized to an intensive lifestyle (ILS) intervention (n=637) or to a placebo-treated control group (n=398), and have been followed for 15 years or more. At least annually, outcomes potentially sensitive to PFCs have been assessed including: adiposity, blood pressure, lipids, glycemia, and conversion to type 2 diabetes. The use of this randomized trial cohort will also allow for effect modification analysis in which we will investigate whether intervention effects (ILS vs. placebo) on weight change and diabetes risk differ by PFC exposure level. This project will leverage the unparalleled resources of the DPPOS to assess, for the first time ever within this highly productive cohort, the contribution of synthetic chemicas to adiposity, diabetes, and other CVD risks. By adding PFC measures, we have an exceptionally cost-effective opportunity to conduct 15+ years of analysis over just a 5-year grant cycle.

Public Health Relevance

This study will provide strong evidence to support or refute an effect of polyfluorinated and perfluorinated compounds (PFCs) on diabetes and cardio-metabolic disease risk in adults. Our results will influence policies to further limit PFC production, research focused on the mechanisms of PFC action, clinical practice for assessment of contributors to cardio-metabolic risk, and individual behaviors to limit exposure to PFC.

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Research Project (R01)
Project #
5R01ES024765-03
Application #
9230371
Study Section
Kidney, Nutrition, Obesity and Diabetes (KNOD)
Program Officer
Schug, Thaddeus
Project Start
2015-03-01
Project End
2020-02-28
Budget Start
2017-03-01
Budget End
2018-02-28
Support Year
3
Fiscal Year
2017
Total Cost
$352,000
Indirect Cost
$117,929
Name
Harvard Pilgrim Health Care, Inc.
Department
Type
Other Domestic Non-Profits
DUNS #
071721088
City
Boston
State
MA
Country
United States
Zip Code
02215
Mora, Ana María; Oken, Emily; Rifas-Shiman, Sheryl L et al. (2016) Prenatal Exposure to Perfluoroalkyl Substances and Adiposity in Early and Mid-Childhood. Environ Health Perspect :