Evidence map›Paper›PMID 34572973›Full record

ArticleAntioxidants (Basel, Switzerland)2021

Preliminary Findings on the Association of the Lipid Peroxidation Product 4-Hydroxynonenal with the Lethal Outcome of Aggressive COVID-19.

Neven Žarković, Biserka Orehovec, Lidija Milković, Bruno Baršić, Franz Tatzber, Willibald Wonisch, Marko Tarle, Marta Kmet, Ana Mataić, Antonia Jakovčević and 6 more

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.9field-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

39 citing papers in PubMed, 46 citations in OpenAlex.

  1. Emerging microbes & infections · 2026
    Article
  2. Article
  3. Article
  4. 4-Hydroxynonenal, a Potential Biomarker for Lung Inflammatory Diseases.International journal of molecular sciences · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Exosomal miR-145 and miR-885 Regulate Thrombosis in COVID-19.The Journal of pharmacology and experimental therapeutics · 2023
    Article
  19. Observational
  20. 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

16 authors at 6 institutions in 3 countries.

Neven ŽarkovićLaboratory for Oxidative Stress (LabOS), Ruđer Bošković Institute, 10000 Zagreb, Croatia.ORCID 0000-0001-5032-0369
Biserka OrehovecClinical Hospital Dubrava, 10000 Zagreb, Croatia.
Lidija MilkovićLaboratory for Oxidative Stress (LabOS), Ruđer Bošković Institute, 10000 Zagreb, Croatia.ORCID 0000-0002-4484-039X
Bruno BaršićClinical Hospital Dubrava, 10000 Zagreb, Croatia.
Franz TatzberOmnignostica Ltd., 3421 Höflein an der Donau, Austria.
Willibald WonischOmnignostica Ltd., 3421 Höflein an der Donau, Austria.ORCID 0000-0001-7171-9539
Marko TarleClinical Hospital Dubrava, 10000 Zagreb, Croatia.ORCID 0000-0002-4173-1278
Marta KmetClinical Hospital Dubrava, 10000 Zagreb, Croatia.
Ana MataićDepartment of Pathology, Clinical Hospital Centre Zagreb, 10000 Zagreb, Croatia.
Antonia JakovčevićDepartment of Pathology, Clinical Hospital Centre Zagreb, 10000 Zagreb, Croatia.
Tea VukovićLaboratory for Oxidative Stress (LabOS), Ruđer Bošković Institute, 10000 Zagreb, Croatia.
Danijela TalićLaboratory for Oxidative Stress (LabOS), Ruđer Bošković Institute, 10000 Zagreb, Croatia.
Georg WaegInstitute of Molecular Biosciences, Karl Franzens University, 8010 Graz, Austria.
Ivica LukšićClinical Hospital Dubrava, 10000 Zagreb, Croatia.
Elzbieta SkrzydlewskaDepartment of Inorganic and Analytical Chemistry, Medical University of Bialystok, 15-089 Bialystok, Poland.ORCID 0000-0001-5397-7139
Kamelija ŽarkovićDepartment of Pathology, Clinical Hospital Centre Zagreb, 10000 Zagreb, Croatia.
Ruđer Bošković Institute · HRUniversity Hospital Dubrava · HRUniversity Hospital Centre Zagreb · HRMedical University of Białystok · PLUniversity of Graz · ATUniversity of Zagreb · HR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major findings of the pilot study involving 21 critically ill patients during the week after admission to the critical care unit specialized for COVID-19 are presented. Fourteen patients have recovered, while seven passed away. There were no differences between them in respect to clinical or laboratory parameters monitored. However, protein adducts of the lipid peroxidation product 4-hydroxynonenal (HNE) were higher in the plasma of the deceased patients, while total antioxidant capacity was below the detection limit for the majority of sera samples in both groups. Moreover, levels of the HNE-protein adducts were constant in the plasma of the deceased patients, while in survivors, they have shown prominent and dynamic variations, suggesting that survivors had active oxidative stress response mechanisms reacting to COVID-19 aggression, which were not efficient in patients who died. Immunohistochemistry revealed the abundant presence of HNE-protein adducts in the lungs of deceased patients indicating that HNE is associated with the lethal outcome. It seems that HNE was spreading from the blood vessels more than being a consequence of pneumonia. Due to the limitations of the relatively small number of patients involved in this study, further research on HNE and antioxidants is needed. This might allow a better understanding of COVID-19 and options for utilizing antioxidants by personalized, integrative biomedicine approach to prevent the onset of HNE-mediated vitious circle of lipid peroxidation in patients with aggressive inflammatory diseases.

Indexed as

4-hydroxynonenal (HNE)antioxidantsblood vesselsCOVID-19free radicalsHNE-ELISAimmunohistochemistryinflammationlipid peroxidationlungsoxidative stressperoxidesreactive oxygen species (ROS)SARS-CoV-2

Identifiers

PMID34572973
PMCPMC8472532
OpenAlexW3195202583

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.