Evidence map›Paper›PMID 36517875›Full record

ArticleClinical epigenetics2022

Defining post-acute COVID-19 syndrome (PACS) by an epigenetic biosignature in peripheral blood mononuclear cells.

Frida Nikesjö, Shumaila Sayyab, Lovisa Karlsson, Eirini Apostolou, Anders Rosén, Kristofer Hedman, Maria Lerm

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Circulating angiogenic progenitor cell apoptosis in Post-COVID-19 syndrome.International journal of cardiology. Heart & vasculature · 2026
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Role of Trained Immunity in Heath and Disease.Current cardiology reports · 2025
    Review
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  14. Article
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  16. Review
  17. Article
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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

7 authors at 1 institution in 1 country.

Frida NikesjöDepartment of Respiratory Medicine in Linköping, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Shumaila SayyabDivision of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Campus US, Medical Microbiology, Lab1, Floor 12, 581 85, Linköping, Sweden. shumaila.sayyab@liu.se.
Lovisa KarlssonDivision of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Campus US, Medical Microbiology, Lab1, Floor 12, 581 85, Linköping, Sweden.
Eirini ApostolouDivision of Cell Biology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Anders RosénDivision of Cell Biology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
Kristofer HedmanDepartment of Clinical Physiology, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
Maria LermDivision of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Campus US, Medical Microbiology, Lab1, Floor 12, 581 85, Linköping, Sweden. maria.lerm@liu.se.
Linköping University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Post-acute COVID-19 syndrome (PACS) has been defined as symptoms persisting after clearance of a COVID-19 infection. We have previously demonstrated that alterations in DNA methylation (DNAm) status persist in individuals who recovered from a COVID-19 infection, but it is currently unknown if PACS is associated with epigenetic changes. We compared DNAm patterns in patients with PACS with those in controls and in healthy COVID-19 convalescents and found a unique DNAm signature in PACS patients. This signature unravelled modified pathways that regulate angiotensin II and muscarinic receptor signalling and protein-protein interaction networks that have bearings on vesicle formation and mitochondrial function.

Indexed as

COVID-19Leukocytes, MononuclearDNA MethylationEpigenesis, GeneticHumansPost-Acute COVID-19 SyndromeBiosignatureCOVID-19DNA methylationEpigeneticsPACSPBMCPost-acute COVID-19 syndromeSARS-CoV-2

Identifiers

PMID36517875
PMCPMC9748378
OpenAlexW4311368705

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.