Evidence map›Paper›PMID 25829970›Full record

ArticleClinical epigenetics2015

Premature aging of leukocyte DNA methylation is associated with type 2 diabetes prevalence.

Gidon Toperoff, Jeremy D Kark, Dvir Aran, Hisham Nassar, Wiessam Abu Ahmad, Ronit Sinnreich, Dima Azaiza, Benjamin Glaser, Asaf Hellman

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
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  11. Novel positioning from obesity to cancer: FTO, an mJournal of cancer research and clinical oncology · 2019
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  12. Article
  13. Review
  14. Article
  15. Review
  16. DNA methylation-based variation between human populations.Molecular genetics and genomics : MGG · 2017
    Review
  17. Epigenetic contribution of the myosin light chain kinase gene to the risk for acute respiratory distress syndrome.Translational research : the journal of laboratory and clinical medicine · 2017
    Article
  18. Article
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  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Gidon ToperoffDepartment of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, 91120 Israel.
Jeremy D KarkEpidemiology Unit, Braun School of Public Health and Community Medicine, Hebrew University and Hadassah Medical Organization, Jerusalem, Israel.
Dvir AranDepartment of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, 91120 Israel ; School of Computer Science and Engineering, Hebrew University, Jerusalem, Israel.
Hisham NassarCardiology Department, Hadassah-Hebrew University Medical Center, Hadassah Medical Organization, Ein Kerem, Jerusalem, Israel ; St Joseph Hospital (East Jerusalem), Jerusalem, Israel.
Wiessam Abu AhmadEpidemiology Unit, Braun School of Public Health and Community Medicine, Hebrew University and Hadassah Medical Organization, Jerusalem, Israel.
Ronit SinnreichEpidemiology Unit, Braun School of Public Health and Community Medicine, Hebrew University and Hadassah Medical Organization, Jerusalem, Israel.
Dima AzaizaDepartment of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, 91120 Israel.
Benjamin GlaserEndocrinology and Metabolism Service, Department of Internal Medicine, Hadassah-Hebrew University Medical Center, Hadassah Medical Organization, Ein Kerem, Jerusalem, Israel.
Asaf HellmanDepartment of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, 91120 Israel.
Hadassah Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundType 2 diabetes mellitus (T2D) is highly prevalent in Middle-Eastern and North African Arab populations, but the molecular basis for this susceptibility is unknown. Altered DNA methylation levels were reported in insulin-secreting and responding tissues, but whether methylation in accessible tissues such as peripheral blood is associated with T2D risk remains an open question. Age-related alteration of DNA methylation level was reported in certain methylation sites, but no association with T2D has been shown. Here we report on a population-based study of 929 men and women representing the East Jerusalem Palestinian (EJP) Arab population and compare with the findings among Israeli Ashkenazi Jews. This is the first reported epigenetic study of an Arab population with a characteristic high prevalence of T2D.

resultsWe found that DNA methylation of a prespecified regulatory site in peripheral blood leukocytes (PBLs) is associated with impaired glucose metabolism and T2D independent of sex, body mass index, and white blood cell composition. This CpG site (Chr16: 53,809,231-2; hg19) is located in a region within an intron of the FTO gene, suspected to serve as a tissue-specific enhancer. The association between PBL hypomethylation and T2D varied by age, revealing differential patterns of methylation aging in healthy and diabetic individuals and between ethnic groups: T2D patients displayed prematurely low methylation levels, and this hypomethylation was greater and occurred earlier in life among Palestinian Arabs than Ashkenazi Jews.

conclusionsOur study suggests that premature DNA methylation aging is associated with increased risk of T2D. These findings should stimulate the search for more such sites and may pave the way to improved T2D risk prediction within and between human populations.

Indexed as

Ashkenazi JewsDNA methylationEast Jerusalem PalestiniansEpigenetic agingEthnic groupsLeukocytesPopulation epigeneticsType 2 diabetes

Identifiers

PMID25829970
PMCPMC4379765
OpenAlexW2011598191

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.