Evidence map›Paper›PMID 30880940›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Disrupted resting-state spontaneous neural activity in stable COPD.

Huizhen Xin, Haijun Li, Honghui Yu, Jingjing Yu, Juan Zhang, Wenjing Wang, Dechang Peng

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  7. Review
  8. Relationship between Pulmonary Gas Exchange Function and Brain Uptake Dynamics Investigated with HyperpolarizedMagnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2025
    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 2 institutions in 1 country.

Huizhen XinDepartment of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China, pengdcdoctor@163.com.
Haijun LiDepartment of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China, pengdcdoctor@163.com.
Honghui YuDepartment of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China, pengdcdoctor@163.com.
Jingjing YuDepartment of Respiratory, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China.
Juan ZhangDepartment of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China, pengdcdoctor@163.com.
Wenjing WangDepartment of Respiratory, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China.
Dechang PengDepartment of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, People's Republic of China, pengdcdoctor@163.com.
Nanchang University · CNFirst Affiliated Hospital of Nanchang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

INTRODUCTION AND

aimAbnormal brain structure and function in COPD has been reported on MRI. However, the deficit in local synchronization of spontaneous activity in patients with stable COPD remains unknown. The main aim of the present study was to explore spontaneous brain activity in patients with COPD compared with normal controls using the regional homogeneity (ReHo) method based on resting-state functional MRI.

methodsNineteen patients with stable COPD and 20 well-matched (including age, sex, and number of years of education) normal controls who were recruited for the present study underwent resting-state functional MRI examinations and a series of neuropsychological and clinical assessments. The ReHo method was used to assess the strength of local brain signal synchrony. The mean ReHo values in brain areas with abnormal ReHo were evaluated with a receiver operating characteristic curve. The relationships between the brain regions with altered ReHo values and the clinical and neuropsychological parameters in COPD patients were assessed using Pearson's correlation.

resultsPatients with COPD showed significantly lower ReHo values in the left occipital lobe and the right lingual, bilateral precuneus, and right precentral gyrus. The result of receiver operating characteristic curve analysis showed that the altered average ReHo values have high efficacy for distinguishing function. The mean lower ReHo values in the precuneus gyrus showed a significant positive correlation with FEV

conclusionThe COPD patients demonstrated abnormal synchrony of regional spontaneous activity, and the regions with abnormal activity were all correlated with visual processing pathways, which might provide us with a new perspective to further understand the underlying pathophysiology of cognitive impairment in patients with COPD.

Indexed as

Brain WavesAgedBrainBrain MappingCase-Control StudiesCross-Sectional StudiesFemaleForced Expiratory VolumeHealth StatusHumansLungMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsPulmonary Disease, Chronic Obstructiveblood oxygen-level-dependentchronic obstructive pulmonary diseaseregional homogeneityresting-state functional magnetic resonance imagingvisual processing pathways

Identifiers

PMID30880940
PMCPMC6398400
OpenAlexW2915464282

What OpenQuestion holds

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Registered trials

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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.