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Methylation-based estimated biological age and cardiovascular disease.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiovascular epidemiology.ORCID iD: 0000-0003-2335-8542
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, UCR-Uppsala Clinical Research Center. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Cardiology.ORCID iD: 0000-0003-2247-8454
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, UCR-Uppsala Clinical Research Center. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Chemistry.
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2018 (English)In: European Journal of Clinical Investigation, ISSN 0014-2972, E-ISSN 1365-2362, Vol. 48, no 2, article id e12872Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: DNA methylation changes over life at specific sites in the genome, which can be used to estimate "biological age." The aim of this population-based longitudinal cohort study was to investigate the association between estimated biological age and incident cardiovascular disease (CVD).

MATERIALS AND METHODS: Based on formulas published by Hannum et al and Horvath et al, "biological age" was calculated using data from the Illumina 450k Bead Methylation chip in 832 participants free from cardiovascular disease in the Prospective Study of the Vasculature in Uppsala Seniors (PIVUS) study (50% women, all aged 70 years at the examination). The difference between estimated biological and chronological age was calculated (DiffAge).

RESULTS: During 10 years of follow-up, 153 incident cases of cardiovascular disease occurred. In the sex-adjusted analyses, the Horvath estimation of DiffAge was significantly related to incident cardiovascular disease (HR 1.040, 95% CI 1.010-1.071, P = .0079). Thus, for each year of increased biological age, a 4% increased risk of future cardiovascular disease was observed. This relationship was still significant following adjustment for the traditional risk factors sex, BMI, diabetes, HDL and LDL-cholesterol, systolic blood pressure and smoking (HR 1.033, 95% CI 1.004-1.063, P = .024). No such significant association was found using the Hannum formula.

CONCLUSIONS: DNA methylation-based estimation of "biological age" per Horvath was associated with incident cardiovascular disease.

Place, publisher, year, edition, pages
2018. Vol. 48, no 2, article id e12872
Keywords [en]
DNA, age, cardiovascular diseases, methylation, risk factors
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:uu:diva-343485DOI: 10.1111/eci.12872ISI: 000423370500006PubMedID: 29231988OAI: oai:DiVA.org:uu-343485DiVA, id: diva2:1186201
Available from: 2018-02-27 Created: 2018-02-27 Last updated: 2018-03-07Bibliographically approved

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Lind, LarsSundström, JohanSiegbahn, AgnetaLampa, Erik

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