Evidence map›Paper›PMID 32199607›Full record

ArticleBiological psychiatry2020

Schizophrenia and Epigenetic Aging Biomarkers: Increased Mortality, Reduced Cancer Risk, and Unique Clozapine Effects.

Albert T Higgins-Chen, Marco P Boks, Christiaan H Vinkers, René S Kahn, Morgan E Levine

Open access · greenAbstract read
In one paragraph

Article in Biological psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 3 pooled it
4.4field-weighted citation impact, top 4% 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

56 citing papers in PubMed, 3 syntheses or guidelines pooled it, 106 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. System-Specific Epigenetic Aging Signatures in Autistic Adults.bioRxiv : the preprint server for biology · 2026
    Article
  7. Article
  8. Article
  9. Premature aging in serious mental illness.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Albert T Higgins-ChenDepartment of Psychiatry, Yale University School of Medicine, New Haven, Connecticut. Electronic address: a.higginschen@yale.edu.
Marco P BoksDepartment of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht, The Netherlands.
Christiaan H VinkersDepartment of Psychiatry, Amsterdam University Medical Center, Amsterdam, The Netherlands; Department of Anatomy and Neurosciences, Amsterdam University Medical Center, Amsterdam, The Netherlands.
René S KahnDepartment of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht, The Netherlands.
Morgan E LevineDepartment of Pathology, Yale University School of Medicine, New Haven, Connecticut.
University Medical Center Utrecht · NLYale University · USAmsterdam Neuroscience · NL

Funding

Yale Study Support Suite (YES3): Dashboard and Web Portal Software Supporting Research Workflow through integrated, customizable REDCap External ModulesP30AG021342 · NIA · YALE UNIVERSITY · PI Albert C Shaw · 2002 to 2026
$37.9M
Clinical Neuroscience Research Training Program in PsychiatryT32MH019961 · NIMH · YALE UNIVERSITY · PI Christopher John Pittenger · 1996 to 2026
$5.9M
Molecular Networks Underlying Resilience to Alzheimer's Disease Among APOE E4 CarriersR01AG057912 · NIA · YALE UNIVERSITY · PI GAITERI, CHRISTOPHER A., HIGGINS-CHEN, ALBERT TZONGYANG · 2017 to 2021
$4.5M
Schizophrenia Research FellowshipR25MH071584 · NIMH · YALE UNIVERSITY · PI Christopher John Pittenger · 2005 to 2026
$4.4M
Molecular mechanisms and social constructs: How genes and environment regulate the rate of agingR00AG052604 · NIA · YALE UNIVERSITY · PI LEVINE, MORGAN ELYSE, TIGNANELLI, CHRISTOPHER J · 2017 to 2020
$866k
NIA NIH HHS P30 AG021342NIA NIH HHS R00 AG052604NIA NIH HHS R01 AG057912NIMH NIH HHS R25 MH071584NIMH NIH HHS T32 MH019961
6 · The paper itself

Abstract

backgroundSchizophrenia (SZ) is associated with increased all-cause mortality, smoking, and age-associated proteins, yet multiple previous studies found no association between SZ and biological age using Horvath's epigenetic clock, a well-established aging biomarker based on DNA methylation. However, numerous epigenetic clocks that may capture distinct aspects of aging have been developed. This study tested the hypothesis that altered aging in SZ manifests in these other clocks.

methodsWe performed a comprehensive analysis of 14 epigenetic clocks categorized according to what they were trained to predict: chronological age, mortality, mitotic divisions, or telomere length. To understand the etiology of biological age differences, we also examined DNA methylation predictors of smoking, alcohol, body mass index, serum proteins, and cell proportions. We independently analyzed 3 publicly available multiethnic DNA methylation data sets from whole blood, a total of 567 SZ cases and 594 nonpsychiatric controls.

resultsAll data sets showed accelerations in SZ for the 3 mortality clocks up to 5 years, driven by smoking and elevated levels of 6 age-associated proteins. The 2 mitotic clocks were decelerated in SZ related to antitumor natural killer and CD8T cells, which may help explain conflicting reports about low cancer rates in epidemiological studies of SZ. One cohort with available medication data showed that clozapine is associated with male-specific decelerations up to 7 years in multiple chronological age clocks.

conclusionsOur study demonstrates the utility of studying the various epigenetic clocks in tandem and highlights potential mechanisms by which mental illness influences long-term outcomes, including cancer and early mortality.

Indexed as

ClozapineNeoplasmsSchizophreniaAgingBiomarkersDNA MethylationEpigenesis, GeneticHumansMaleBiomarkersClozapineAgingCancerClozapineEpigeneticsSchizophreniaSmoking

Identifiers

PMID32199607
PMCPMC7368835
OpenAlexW3004565626

What OpenQuestion holds

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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.