Evidence map›Paper›PMID 34215195›Full record

ArticleBMC neurology2021

The significance of the oxidative stress markers in the one-year prognosis of patients with acute ischemic stroke: a case-control study.

Sheida Shaafi, Fina Hadisi, Mahsa Mahmoudinezhad, Hamidreza Razmi, Seyed Aria Nejadghaderi, Mohammad Khalili

Open access · goldAbstract read
In one paragraph

Article in BMC neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  6. Delayed Transplantation of Neural Stem Cells Improves Initial Graft Survival after Stroke.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 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 3 institutions in 1 country.

Sheida ShaafiDepartment of Neurology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Fina HadisiNeurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Mahsa MahmoudinezhadStudent Research Committee, Department of Community Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
Hamidreza RazmiStudent Research Committee, Department of Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
Seyed Aria NejadghaderiSchool of Medicine, Shahid Beheshti, University of Medical Sciences, Tehran, Iran.
Mohammad KhaliliMultiple Sclerosis Research Center, Neuroscience institute, Tehran University of Medical Sciences, Tehran, Iran. nutrifoodkhalili@gmail.com.
Tabriz University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStroke is a major cause of mortality and morbidity. Also, free radicals and oxidative stress are deleterious factor in the stroke progression. We aimed to evaluate the association between oxidative stress markers and odds of having risk factor for stroke or developing stroke.

methodsThe present case-control study was conducted on 556 participants in Imam-Reza hospital, Tabriz, Iran. Subjects were divided into three group, including individuals with acute ischemic stroke, those who were at risk of stroke, and healthy controls. All enrolled participants except for controls underwent neurological examinations and brain magnetic resonance imaging (MRI). Stroke-related disability and stroke severity were evaluated by modified Rankin Scale (mRS) and National Institutes of Health Stroke Scale (NIHSS), respectively. Serum malondialdehyde (MDA) level and total antioxidant capacity (TAC) were measured within 48 h of the initiation of stroke. One-way ANOVA and Chi-square tests were used for comparing characteristics between groups. Multivariable logistic regression was implemented for odds of stroke based on MDA and TAC quartiles. Also, Spearman's correlation was utilized.

resultsSerum MDA, systolic and diastolic blood pressure, cholesterol, and triglyceride were significantly higher in the stroke group than controls. High levels of MDA were associated with increased development of stroke (P-value < 0.001), however TAC and MDA were not associated with having risk factors for stroke (P-value = 1.00 and 0.27, respectively). Also, TAC level was negatively associated with baseline (ρ = - 0.28; P-value = 0.04) and follow-up (ρ = - 0.31; P-value = 0.03) NIHSS scores. Moreover, MDA was correlated with mRS score at follow-up (ρ = - 0.26; P-value = 0.04).

conclusionsThe balance between antioxidants and oxidants markers might reveal a new approach in this context. Further studies are warranted to identify the source of oxidative stress as well as cessation of the production of oxygen radicals in stroke.

Indexed as

Ischemic StrokeAntioxidantsBiomarkersCase-Control StudiesHumansOxidative StressPrognosisRisk FactorsAntioxidantsBiomarkersCase-control studyMalondialdehydeModified Rankin scaleNational Institutes of Health stroke scaleStrokeTotal antioxidant capacity

Identifiers

PMID34215195
PMCPMC8252289
OpenAlexW3175419278

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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.