Arsenic Exposure, Blood DNA Methylation, and Cardiovascular Disease

Author:

Domingo-Relloso Arce123ORCID,Makhani Kiran4,Riffo-Campos Angela L.56ORCID,Tellez-Plaza Maria2ORCID,Klein Kathleen Oros4,Subedi Pooja7,Zhao Jinying7,Moon Katherine A.8,Bozack Anne K.9ORCID,Haack Karin10ORCID,Goessler Walter11ORCID,Umans Jason G.1213ORCID,Best Lyle G.14,Zhang Ying15,Herreros-Martinez Miguel16ORCID,Glabonjat Ronald A.1ORCID,Schilling Kathrin1ORCID,Galvez-Fernandez Marta12ORCID,Kent Jack W.10,Sanchez Tiffany R1,Taylor Kent D.17ORCID,Johnson W. Craig18ORCID,Durda Peter19,Tracy Russell P.19ORCID,Rotter Jerome I.17ORCID,Rich Stephen S.20ORCID,Van Den Berg David21,Kasela Silva2223ORCID,Lappalainen Tuuli2223,Vasan Ramachandran S2425ORCID,Joehanes Roby2627ORCID,Howard Barbara V.1213,Levy Daniel2627ORCID,Lohman Kurt28,Liu Yongmei28,Fallin M Daniele29,Cole Shelley A.10,Mann Koren K.430,Navas-Acien Ana1ORCID

Affiliation:

1. Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY (A.D.-R., R.A.G., K.S., M.G.-F., T.R.S., A.N.-A.).

2. Integrative Epidemiology Group, Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institute, Madrid, Spain (A.D.-R., M.T.-P., M.G.-F.).

3. Department of Statistics and Operations Research (A.D.-R.), University of Valencia, Spain.

4. Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada (K.M., K.O.K., K.K.M.).

5. Department of Computer Science, ETSE (A.L.R.-C.), University of Valencia, Spain.

6. Millennium Nucleus on Sociomedicine (SocioMed) and Vicerrectoría Académica, Universidad de La Frontera, Temuco, Chile (A.L.R.-C.).

7. Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, Gainesville (P.S., J.Z.).

8. Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD (K.A.M.).

9. Department of Environmental Health Sciences, School of Public Health, University of California, Berkeley (A.K.B.).

10. Population Health Program, Texas Biomedical Research Institute, San Antonio‚ TX (K.H., J.W.K., S.A.C.).

11. Institute of Chemistry - Analytical Chemistry for Health and Environment, University of Graz, Austria (W.G.).

12. MedStar Health Research Institute, Hyattsville, MD. Now with Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC (J.G.U., B.W.H.).

13. Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC (J.G.U., B.V.H.).

14. Missouri Breaks Industries and Research, Inc, Eagle Butte, SD (L.G.B.).

15. Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center (Y.Z.).

16. Bioinformatics Unit, Institute for Biomedical Research INCLIVA, Valencia, Spain (M.H.-M.).

17. The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA (K.D.T., J.I.R.).

18. Department of Biostatistics, University of Washington, Seattle (W.C.J.).

19. Department of Pathology Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT (P.D., R.P.T.).

20. Center for Public Health Genomics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA (S.S.R.).

21. Department of Population and Public Health Sciences, Keck School of Medicine of USC, University of Southern California, Los Angeles‚ CA (D.V.D.B.).

22. New York Genome Center (S.K., T.L.).

23. Department of Systems Biology, Columbia University‚ NY (S.K., T.L.).

24. National Heart, Lung, and Blood Institute’s and Boston University’s Framingham Heart Study, Framingham, MA (R.S.V.).

25. Sections of Preventive Medicine and Epidemiology and Cardiovascular Medicine, Department of Medicine, Department of Epidemiology, Boston University Schools of Medicine and Public Health, MA (R.S.V.).

26. Population Sciences Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (R.J., D.L.).

27. Framingham Heart Study, MA (R.J., D.L.).

28. Department of Medicine, Duke University Medical Center, Durham, NC (K.L., Y.L.).

29. Departments of Mental Health and Epidemiology, Johns Hopkins University, Baltimore, MD (M.D.F.).

30. Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada (K.K.M.).

Abstract

Background:Epigenetic dysregulation has been proposed as a key mechanism for arsenic-related cardiovascular disease (CVD). We evaluated differentially methylated positions (DMPs) as potential mediators on the association between arsenic and CVD.Methods:Blood DNA methylation was measured in 2321 participants (mean age 56.2, 58.6% women) of the Strong Heart Study, a prospective cohort of American Indians. Urinary arsenic species were measured using high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry. We identified DMPs that are potential mediators between arsenic and CVD. In a cross-species analysis, we compared those DMPs with differential liver DNA methylation following early-life arsenic exposure in the apoE knockout (apoE−/−) mouse model of atherosclerosis.Results:A total of 20 and 13 DMPs were potential mediators for CVD incidence and mortality, respectively, several of them annotated to genes related to diabetes. Eleven of these DMPs were similarly associated with incident CVD in 3 diverse prospective cohorts (Framingham Heart Study, Women’s Health Initiative, and Multi-Ethnic Study of Atherosclerosis). In the mouse model, differentially methylated regions in 20 of those genes and DMPs in 10 genes were associated with arsenic.Conclusions:Differential DNA methylation might be part of the biological link between arsenic and CVD. The gene functions suggest that diabetes might represent a relevant mechanism for arsenic-related cardiovascular risk in populations with a high burden of diabetes.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Cardiology and Cardiovascular Medicine,Physiology

Reference115 articles.

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2. Arsenic, metals, fibres, and dusts.;IARC Working Group.;IARC Monogr Eval Carcinog Risks Hum,2012

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4. National Research Council. Critical aspects of EPA’s IRIS assessment of inorganic arsenic: Interim report. National Academies Press; 2013.

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