Evidence map›Paper›PMID 37942144›Full record

SynthesisFrontiers in neuroscience2023

Functional changes of default mode network and structural alterations of gray matter in patients with irritable bowel syndrome: a meta-analysis of whole-brain studies.

Mengqi Zhao, Zeqi Hao, Mengting Li, Hongyu Xi, Su Hu, Jianjie Wen, Yanyan Gao, Collins Opoku Antwi, Xize Jia, Yang Yu and 1 more

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. 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

11 authors at 3 institutions in 1 country.

Mengqi Zhao *School of Psychology, Zhejiang Normal University, Jinhua, China.
Zeqi Hao *School of Psychology, Zhejiang Normal University, Jinhua, China.
Mengting LiSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Hongyu XiSchool of Western Languages, Heilongjiang University, Harbin, China.
Su HuSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Jianjie WenSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Yanyan GaoSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Collins Opoku AntwiSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Xize JiaSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Yang YuDepartment of Psychiatry, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Jun RenSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Zhejiang Normal University · CNHeilongjiang University · CNSecond Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Irritable bowel syndrome (IBS) is a brain-gut disorder with high global prevalence, resulting from abnormalities in brain connectivity of the default mode network and aberrant changes in gray matter (GM). However, the findings of previous studies about IBS were divergent. Therefore, we conducted a meta-analysis to identify common functional and structural alterations in IBS patients. Methods: Altogether, we identified 12 studies involving 194 IBS patients and 230 healthy controls (HCs) from six databases using whole-brain resting state functional connectivity (rs-FC) and voxel-based morphometry. Anisotropic effect-size signed differential mapping (AES-SDM) was used to identify abnormal functional and structural changes as well as the overlap brain regions between dysconnectivity and GM alterations. Results: Findings indicated that, compared with HCs, IBS patients showed abnormal rs-FC in left inferior parietal gyrus, left lingual gyrus, right angular gyrus, right precuneus, right amygdala, right median cingulate cortex, and left hippocampus. Altered GM was detected in the fusiform gyrus, left triangular inferior frontal gyrus (IFG), right superior marginal gyrus, left anterior cingulate gyrus, left rectus, left orbital IFG, right triangular IFG, right putamen, left superior parietal gyrus and right precuneus. Besides, multimodal meta-analysis identified left middle frontal gyrus, left orbital IFG, and right putamen as the overlapped regions. Conclusion: Our results confirm that IBS patients have abnormal alterations in rs-FC and GM, and reveal brain regions with both functional and structural alterations. These results may contribute to understanding the underlying pathophysiology of IBS. Systematic review registration: https://www.crd.york.ac.uk/prospero, identifier CRD42022351342.

Indexed as

default mode networkfunctional connectivityirritable bowel syndromemeta-analysisvoxel-based morphometry

Identifiers

PMID37942144
PMCPMC10627928
OpenAlexW4387900115

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.