Evidence map›Paper›PMID 34862613›Full record

ArticleJournal of medical virology2022

Total antioxidant capacity as a marker of severity of COVID-19 infection: Possible prognostic and therapeutic clinical application.

Neda Yaghoubi, Masoud Youssefi, Farahzad Jabbari Azad, Faramarz Farzad, Zahra Yavari, Farnaz Zahedi Avval

Open access · bronzeAbstract read
In one paragraph

Article in Journal of medical virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Involvement of oxidative stress in post-acute sequelae of COVID-19: clinical implications.Redox report : communications in free radical research · 2025
    Article
  3. Article
  4. Article
  5. Biomarkers of Oxidative Stress in COVID-19 Patients.International journal of molecular sciences · 2025
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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

6 authors at 1 institution in 1 country.

Neda YaghoubiDepartment of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Masoud YoussefiAntimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Farahzad Jabbari AzadAllergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Faramarz FarzadDepartment of Immunology, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Zahra YavariDepartment of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Farnaz Zahedi AvvalDepartment of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.ORCID 0000-0001-8915-3596
Mashhad University of Medical Sciences · IR

Funding

Mashhad University of Medical Sciences 990636
6 · The paper itself

Abstract

The pathogenesis of SARS-CoV-2 infection, causative pathogen of the known COVID-19 pandemic is not well clarified. In this regard oxidative stress is one of the topics that need to be investigated. Therefore, the present research was performed to explore the relationship between the oxidant/antioxidant system and COVID-19 exacerbation. Sera were collected from 120 patients with COVID-19 infection and 60 healthy volunteers as the control group. The patient group consisted of 60 cases with mild disease and 60 severely ill patients. Serum levels of total antioxidant capacity (TAC) and nitric oxide (NO) as well as serum activities of the two main antioxidant defense enzymes, superoxide dismutase (SOD) and catalase (CAT), were measured. TAC levels were considerably lower in patients compared with healthy individuals (p < 0.05) and also between patients with mild and severe diseases (p < 0.05). A rather decreasing trend was also found in NO concentration as well as SOD and CAT activity, though, the observed differences were not statistically significant (p > 0.05). These findings suggest that COVID-19 patients may be susceptible to depleted total antioxidant capacity. Moreover, showing such variations in blood samples of infected individuals could be considered as a predictive marker of COVID-19 severity.

Indexed as

AdultAntioxidantsBiomarkersCase-Control StudiesCatalaseCOVID-19Cross-Sectional StudiesFemaleHumansLogistic ModelsMaleMiddle AgedNitric OxideOxidative StressPredictive Value of TestsSeverity of Illness IndexAntioxidantsBiomarkersCatalaseNitric OxideSuperoxide Dismutaseantioxidant enzymeCOVID-19oxidative stressTAC

Identifiers

PMID34862613
PMCPMC9015601
OpenAlexW3215571786

What OpenQuestion holds

Textmetadata
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.