Evidence map›Paper›PMID 33531576›Full record

ArticleScientific reports2021

Elevated hemoglobin is independently associated with enlarged perivascular spaces in the central semiovale.

Yingchao Huo, Siyuan Huang, Rui Li, Xue Gong, Wenyu Zhang, Rongrong Zhang, Xinyue Qin

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 53% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
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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

7 authors at 3 institutions in 1 country.

Yingchao HuoDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
Siyuan HuangDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
Rui LiDivision of Life Sciences and Medicine, Department of Neurology, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, People's Republic of China.
Xue GongDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
Wenyu ZhangDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
Rongrong ZhangDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China.
Xinyue QinDepartment of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China. qinxy2019@sina.com.
Chongqing Medical University · CNFirst Affiliated Hospital of Chongqing Medical University · CNUniversity of Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enlarged perivascular spaces (EPVS) are widely considered as a feature of cerebral small vessel diseases (SVD), but its underlying pathology is still under active investigation. The aim of this study was to explore the association between hemoglobin level and the severity of EPVS. Consecutive patients with acute ischemic stroke who underwent baseline MRI scan and hemoglobin testing were evaluated. EPVS in basal ganglia (BG) and central semiovale (CS) were rated with a validated 4-point semiquantitative scale (0 = none; 1 = 1-10; 2 = 11-20; 3 = 21-40; and 4 ≥ 40). Bivariate logistic regression models were used to identify the associations of hemoglobin with predefined high-degree (score > 1) CS-EPVS and BG-EPVS. Multinomial logistic regression models were used to analyze the associations between hemoglobin and CS-/BG-EPVS predominance patterns. A total of 401 patients were included in the final analysis, 94 patients (23.4%) had a high degree of CS-EPVS and 45 patients (11.2%) had a high degree of BG-EPVS. Compared with tertile 1 of hemoglobin, tertile 3 of hemoglobin was independently associated with high degree of CS-EPVS after adjusting for other features of SVD (odds ratio [OR] 2.399, 95% confidence interval [CI] 1.315-4.379, P = 0.004) and potential confounding factors (OR 2.611, 95% CI 1.346-5.066, P = 0.005). In multinomial logistic regression models, compared with tertile 1 of hemoglobin, tertile 2 (OR 2.463, 95% CI 1.195-5.075, P = 0.015) and tertile 3 (OR 2.625, 95% CI 1.102-6.251, P = 0.029) of hemoglobin were associated with higher odds of BG-EPVS = CS-EPVS pattern, and tertile 3 of hemoglobin (OR 2.576, 95% CI 1.004-6.608, P = 0.049) was associated with higher odds of BG-EPVS < CS-EPVS pattern. Elevated hemoglobin level was independently associated with high degree of CS-EPVS and higher odds of CS-EPVS predominance pattern, but not with BG-EPVS, which support that the topography of EPVS is characteristic. However, the pathogenesis linking hemoglobin and CS-EPVS is unclear and still needs further investigation.

Indexed as

AdultAgedAged, 80 and overBasal GangliaCerebral Small Vessel DiseasesFemaleGlymphatic SystemHemoglobinsHumansIschemic StrokeMagnetic Resonance ImagingMaleMiddle AgedProspective StudiesRetrospective StudiesSeverity of Illness IndexHemoglobins

Identifiers

PMID33531576
PMCPMC7854720
OpenAlexW3127653669

What OpenQuestion holds

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LicenceCC BY
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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.