Evidence map›Paper›PMID 35928017›Full record

ArticleFrontiers in neuroscience2022

Aberrant Dynamic Functional Connectivity of Posterior Cingulate Cortex Subregions in Major Depressive Disorder With Suicidal Ideation.

Weicheng Li, Chengyu Wang, Xiaofeng Lan, Ling Fu, Fan Zhang, Yanxiang Ye, Haiyan Liu, Kai Wu, Guohui Lao, Jun Chen and 3 more

Abstract read
In one paragraph

Article in Frontiers in neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Weicheng LiThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Chengyu WangThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Xiaofeng LanThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Ling FuThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Fan ZhangThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Yanxiang YeThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Haiyan LiuThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Kai WuThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Guohui LaoThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Jun ChenGuangdong Institute of Medical Instruments, Guangzhou, China.
Guixiang LiInstitute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, China.
Yanling ZhouThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Yuping NingThe Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Accumulating evidence indicates the presence of structural and functional abnormalities of the posterior cingulate cortex (PCC) in patients with major depressive disorder (MDD) with suicidal ideation (SI). Nevertheless, the subregional-level dynamic functional connectivity (dFC) of the PCC has not been investigated in MDD with SI. We therefore sought to investigate the presence of aberrant dFC variability in PCC subregions in MDD patients with SI. We analyzed resting-state functional magnetic resonance imaging (fMRI) data from 31 unmedicated MDD patients with SI (SI group), 56 unmedicated MDD patients without SI (NSI group), and 48 matched healthy control (HC) subjects. The sliding-window method was applied to characterize the whole-brain dFC of each PCC subregion [the ventral PCC (vPCC) and dorsal PCC (dPCC)]. In addition, we evaluated associations between clinical variables and the aberrant dFC variability of those brain regions showing significant between-group differences. Compared with HCS, the SI and the NSI groups exhibited higher dFC variability between the left dPCC and left fusiform gyrus and between the right vPCC and left inferior frontal gyrus (IFG). The SI group showed higher dFC variability between the left vPCC and left IFG than the NSI group. Furthermore, the dFC variability between the left vPCC and left IFG was positively correlated with Scale for Suicidal Ideation (SSI) score in patients with MDD (i.e., the SI and NSI groups). Our results indicate that aberrant dFC variability between the vPCC and IFG might provide a neural-network explanation for SI and may provide a potential target for future therapeutic interventions in MDD patients with SI.

Indexed as

dynamic functional connectivity (dFC)magnetic resonance imagingmajor depressive disorderposterior cingulate cortexsuicidal ideation

Identifiers

PMID35928017
PMCPMC9344055

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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.