Evidence map›Paper›PMID 41532542›Full record

ArticleJournal of the American Heart Association2026

Associations of Serum Complement Biomarkers With Adverse Clinical Outcomes Among Patients With Ischemic Stroke.

Lulu Sun, Yong Wang, Yang Liu, Xinyue Chang, Xueyu Mao, Xuechun Wu, Min Chu, Huicong Niu, Mengyao Shi, Daoxia Guo and 2 more

Abstract read
In one paragraph

Article in Journal of the American Heart Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

12 authors.

Lulu Sun *Department of Epidemiology, the Affiliated Guangji Hospital of Soochow University, School of Public Health Suzhou Medical College of Soochow University Suzhou Jiangsu China.
Yong Wang *Department of Neurology, Minhang Hospital Fudan University Shanghai China.
Yang LiuDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.ORCID 0000-0001-5939-572X
Xinyue ChangDepartment of Epidemiology, the Affiliated Guangji Hospital of Soochow University, School of Public Health Suzhou Medical College of Soochow University Suzhou Jiangsu China.
Xueyu MaoDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.ORCID 0000-0001-6143-197X
Xuechun WuDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.
Min ChuDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.
Huicong NiuDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.ORCID 0000-0001-9112-8883
Mengyao ShiDepartment of Epidemiology, the Affiliated Guangji Hospital of Soochow University, School of Public Health Suzhou Medical College of Soochow University Suzhou Jiangsu China.
Daoxia GuoSchool of Nursing Suzhou Medical College of Soochow University Suzhou China.
Zhengbao ZhuDepartment of Epidemiology, the Affiliated Guangji Hospital of Soochow University, School of Public Health Suzhou Medical College of Soochow University Suzhou Jiangsu China.ORCID 0000-0001-5500-0014
Jing ZhaoDepartment of Neurology, Minhang Hospital Fudan University Shanghai China.ORCID 0000-0001-5197-9181

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe complement system plays a crucial role in immune regulation and inflammatory response and is believed to be involved in the onset and progression of ischemic stroke. Therefore, we aimed to investigate the associations of baseline serum complement C3 and C4 levels with the prognosis of ischemic stroke.

methodsWe measured baseline serum complemental C3 and C4 levels in 3979 patients with ischemic stroke from the Minhang Stroke Cohort. The primary outcome was death or major disability at discharge after ischemic stroke. Secondary outcomes included major disability, death, and pneumonia. In addition, we constructed a complement biomarker score based on serum complement C3 and C4 levels to systematically evaluate the impact of the complement system on the prognosis among patients with ischemic stroke.

resultsAmong the 3979 patients with ischemic stroke, 1360 (34.18%) experienced death or major disability at discharge. After multivariable adjustment, the odds ratios of the primary outcome for the highest versus the lowest quartile were 1.34 (95% confidence intervals [CI], 1.06-1.69;

conclusionsHigh serum complement C3 and C4 levels were associated with increased risks of adverse outcomes at discharge after ischemic stroke, suggesting that the complement system might be implicated in the progression of ischemic stroke and could be potential intervention targets for improving prognosis.

Indexed as

Brain IschemiaComplement C3Complement C4Ischemic StrokeAgedBiomarkersChinaFemaleHumansMaleMiddle AgedPrognosisRisk FactorsBiomarkersC3 protein, humanComplement C3Complement C4complement C3complement C4ischemic strokeprognosisscore

Identifiers

PMID41532542
PMCPMC12919470

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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.