Evidence map›Paper›PMID 28005183›Full record

ArticleNeurotoxicity research2017

Altered Gray Matter Volume in Stable Chronic Obstructive Pulmonary Disease with Subclinical Cognitive Impairment: an Exploratory Study.

Chunrong Wang, Yanhui Ding, Bixian Shen, Dehong Gao, Jie An, Kewen Peng, Gangqiang Hou, Liqiu Zou, Mei Jiang, Shijun Qiu

Abstract read
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In one paragraph

Article in Neurotoxicity research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
–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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

10 authors.

Chunrong WangDepartment of Radiology, Nanfang Hospital Affiliated to Southern Medical University, Guangzhou, Guangdong, 510515, China.
Yanhui DingSchool of Information Science and Engineering, Shandong Normal University, Jinan, Shandong, 250014, China.
Bixian ShenDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Dehong GaoDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Jie AnDepartment of Radiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510405, China.
Kewen PengDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Gangqiang HouDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Liqiu ZouDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Mei JiangDepartment of Radiology, Nanshan Hospital Affiliated to Guangdong Medical University, Shenzhen, Guangdong, 518052, China.
Shijun QiuDepartment of Radiology, Nanfang Hospital Affiliated to Southern Medical University, Guangzhou, Guangdong, 510515, China. qiu-sj@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gray matter volume deficits have been identified in cognitively impaired patients with chronic obstructive pulmonary disease (COPD). However, it remains unknown whether the gray matter volume is altered in COPD patients with subclinical cognitive impairment. To determine whether any gray matter abnormalities are present in these patients, neuropsychological tests and structural MRI data were analyzed from 60 patients with COPD and 60 age-, gender-, education-, and handedness-matched normal controls (NCs). The COPD patients had similar Mini-Mental State Examination (MMSE) scores compared with the NCs. However, they had reduced Montreal Cognitive Assessment (MoCA) scores for visuospatial and executive and naming and memory functions (P < 0.001). Voxel-based morphometry (VBM) analysis revealed that the COPD patients had significantly lowered gray matter volumes in several brain regions, including the left precuneus (PrCU), bilateral calcarine (CAL), right superior temporal gyrus/middle temporal gyrus (STG/MTG), bilateral fusiform gyrus (FG), and right inferior parietal lobule (IPL) (P < 0.01, corrected). Importantly, the forced vital capacity (FVC) was found to be associated with the gray matter volume in the calcarine. The present study confirmed that brain structural changes were present in stable COPD patients with subclinical cognitive impairment. These findings may provide new insights into the pathogenesis of COPD.

Indexed as

AtrophyBrainCase-Control StudiesCognitive DysfunctionFemaleGray MatterHumansMagnetic Resonance ImagingMaleMiddle AgedNeuroimagingNeuropsychological TestsPulmonary Disease, Chronic ObstructiveVital CapacityBrainChronic obstructive pulmonary disease (COPD)Cognitive impairmentGray matter volumeHypoxiaVoxel-based morphometry (VBM)

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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.