Evidence map›Paper›PMID 34956420›Full record

ArticleDisease markers2021

Plasma S-Adenosylmethionine Is Associated with Lung Injury in COVID-19.

Evgeny Vladimirovich Kryukov, Alexander Vladimirovich Ivanov, Vladimir Olegovich Karpov, Valery Vasil'evich Aleksandrin, Alexander Mikhaylovich Dygai, Maria Petrovna Kruglova, Gennady Ivanovich Kostiuchenko, Sergei Petrovich Kazakov, Aslan Amirkhanovich Kubatiev

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Disease markers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.7field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. MTHFR allele and one-carbon metabolic profile predict severity of COVID-19.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Oral SARS-CoV-2 Infection and Risk for Long Covid.Reviews in medical virology · 2025
    Review
  6. Persistent Post COVID-19 Endothelial Dysfunction and Oxidative Stress in Women.Pathophysiology : the official journal of the International Society for Pathophysiology · 2024
    Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. COVID-19 and One-Carbon Metabolism.International journal of molecular sciences · 2022
    Review
  13. An Altered Metabolism in Leukocytes ShowingFrontiers in molecular biosciences · 2022
    Article
  14. Article
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 3 institutions in 1 country.

Evgeny Vladimirovich KryukovBurdenko Main Military Clinical Hospital, Ministry of Defense, Gospitalnaya Sq., 3, Moscow, 105229, Russia.ORCID https://orcid.org/0000-0002-8396-1936
Alexander Vladimirovich IvanovInstitute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia.ORCID https://orcid.org/0000-0002-2424-6115
Vladimir Olegovich KarpovBurdenko Main Military Clinical Hospital, Ministry of Defense, Gospitalnaya Sq., 3, Moscow, 105229, Russia.
Valery Vasil'evich AleksandrinInstitute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia.
Alexander Mikhaylovich DygaiInstitute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia.ORCID https://orcid.org/0000-0001-6286-5315
Maria Petrovna KruglovaSechenov First Moscow State Medical University, Trubetskaya St., 8-2, Moscow, 119991, Russia.ORCID https://orcid.org/0000-0001-6939-160X
Gennady Ivanovich KostiuchenkoRegional Clinical Hospital, Lyapidevsky St., 1, Barnaul, 656024, Russia.
Sergei Petrovich KazakovBurdenko Main Military Clinical Hospital, Ministry of Defense, Gospitalnaya Sq., 3, Moscow, 105229, Russia.
Aslan Amirkhanovich KubatievInstitute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia.ORCID https://orcid.org/0000-0001-8077-2905
Research Institute of General Pathology and Pathophysiology, the Russian Academy of Medical Sciences · RURegional State Budget Health Care Institution "Regional Clinical Hospital" · RUSechenov University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveS-Adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH) are indicators of global transmethylation and may play an important role as markers of severity of COVID-19.

methodsThe levels of plasma SAM and SAH were determined in patients admitted with COVID-19 (

resultsSAM was found to be a potential marker of lung damage risk in COVID-19 patients (SAM > 80 nM; CT3,4 vs. CT 0-2: relative ratio (RR) was 3.0;

conclusionsA high SAM level and high methylation index are associated with the risk of lung injury in patients with COVID-19. The association of SAM with IL-6 and glutathione indicates an important role of transmethylation in the development of cytokine imbalance and oxidative stress in patients with COVID-19.

Indexed as

SARS-CoV-2AdultAgedAged, 80 and overAtherosclerosisBiomarkersComorbidityCOVID-19Diabetes MellitusFemaleGlutathioneHumansHypertensionInterleukin-6Lung InjuryMaleBiomarkersGlutathioneIL6 protein, humanInterleukin-6S-AdenosylhomocysteineS-Adenosylmethionine

Identifiers

PMID34956420
PMCPMC8702356
OpenAlexW4226417465

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.