Evidence map›Paper›PMID 40207024›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2025

Abnormal Brain Functional Connectivity in Patients with Chronic Obstructive Pulmonary Disease and Correlations with Clinical and Cognitive Parameters.

Kyung-Il Han, Yoomi Yeo, Hang Joon Jo, Min Ju Jo, Yeonkyung Park, Tai Sun Park, Sung Jun Jung, Jin Ho Bae, Sung-Ho Jang, Joonho Choi and 2 more

Abstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Effective Connectivity and Clinical Correlates in Chronic Obstructive Pulmonary Disease.International journal of chronic obstructive pulmonary disease · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. 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.

Kyung-Il Han *Department of Pulmonary and Critical Care Medicine, Asan Medical Center, Seoul, Korea.ORCID 0009-0002-3204-8423
Yoomi Yeo *Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Seoul, Korea.ORCID 0000-0002-2447-2067
Hang Joon Jo *Department of Physiology, Hanyang University College of Medicine, Seoul, Korea.
Min Ju JoDepartment of Internal Medicine, Myongji St. Mary's Hospital, Seoul, Korea.
Yeonkyung ParkDepartment of Internal Medicine, Veterans Health Service Medical Center, Seoul, Korea.ORCID 0000-0003-1608-394X
Tai Sun ParkDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Seoul, Korea.
Sung Jun JungDepartment of Physiology, Hanyang University College of Medicine, Seoul, Korea.
Jin Ho BaeDepartment of Biomedical Engineering, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea.
Sung-Ho JangDepartment of Rehabilitation, College of Medicine, Hanyang University Guri Hospital, Guri, Korea.
Joonho ChoiDepartment of Psychiatry, College of Medicine, Hanyang University Guri Hospital, Guri, Korea.ORCID 0000-0003-0597-0877
Dong Woo ParkDepartment of Radiology, College of Medicine, Hanyang University Guri Hospital, Guri, Korea.
Tae-Hyung KimDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Seoul, Korea.ORCID 0000-0002-3863-7854

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Cognitive impairment is a major comorbidity of chronic obstructive pulmonary disease (COPD), but the underlying mechanisms are not fully understood. In this study, we used resting-state functional magnetic resonance imaging to investigate brain functional connectivity (FC) abnormalities in patients with COPD and explored the correlation between abnormal FC and COPD-related clinical parameters. Methods: Forty-one patients with COPD, without a definite diagnosis of cognitive impairment or depression, and 30 age- and sex-matched controls were recruited. A total of 184 resting-state functional connectivity (RSFC) maps were generated for all seed points. Welch's Results: Patients with COPD had lower scores on the Mini-Mental State Exam (MMSE) and Korean version of the Montreal Cognitive Assessment and higher scores on the Beck Depression Inventory than the control group. Additionally, patients with COPD showed decreased RSFC in the left middle-posterior cingulate cortex, left posterior-dorsal cingulate cortex, and right superior occipital gyrus and increased RSFC in the left superior temporal sulcus, left posterior transverse collateral sulcus, right occipital pole, and right precentral gyrus. The regions showing differences in FC correlated with MMSE score, COPD symptom assessment scales, such as the COPD Assessment Test and modified Medical Research Council Dyspnea Scale, and pulmonary function parameters, including forced expiratory volume in one second and forced vital capacity. Conclusion: Patients with COPD showed significant differences in FC within specific brain regions that correlated with symptoms, cognition, and lung function.

Indexed as

BrainCognitionCognitive DysfunctionConnectomeLungPulmonary Disease, Chronic ObstructiveAgedBrain MappingCase-Control StudiesFemaleForced Expiratory VolumeHumansMagnetic Resonance ImagingMaleMental Status and Dementia TestsMiddle AgedBrain functional magnetic resonance imagingchronic obstructive pulmonary diseaseresting state functional connectivity

Identifiers

PMID40207024
PMCPMC11980928

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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.