Evidence map›Paper›PMID 32066415›Full record

ArticleBMC psychiatry2020

Abnormal resting-state functional connectivity of hippocampal subfields in patients with major depressive disorder.

Zi Yu Hao, Yuan Zhong, Zi Juan Ma, Hua Zhen Xu, Jing Ya Kong, Zhou Wu, Yun Wu, Jian Li, Xin Lu, Ning Zhang and 1 more

Abstract read
In one paragraph

Article in BMC psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing 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.

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3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline 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

11 authors.

Zi Yu HaoNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Yuan ZhongSchool of Psychology, Nanjing Normal University, Nanjing, 210097, Jiangsu, China.
Zi Juan MaNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Hua Zhen XuNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Jing Ya KongNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Zhou WuSchool of Psychology, Nanjing Normal University, Nanjing, 210097, Jiangsu, China.
Yun WuNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Jian LiNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Xin LuNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Ning ZhangNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Chun WangNanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, 210029, Jiangsu, China. fm51109@163.com.ORCID 0000-0003-4251-8337

Funding

key research and development program (Social Development) project of Jiangsu province BE20156092015National Natural Science Foundation of China 81571344, 81871344,81201064Natural Science Foundation of Jiangsu Province BK20161109Natural Science Foundation of the Higher Education Institutions of Jiangsu Province, China 18KJB190003
6 · The paper itself

Abstract

backgroundMany studies have found that the hippocampus plays a very important role in major depressive disorder (MDD). The hippocampus can be divided into three subfields: the cornu ammonis (CA), dentate gyrus (DG) and subiculum. Each subfield of the hippocampus has a unique function and are differentially associated with the pathological mechanisms of MDD. However, no research exists to describe the resting state functional connectivity of each hippocampal subfield in MDD.

methodsFifty-five patients with MDD and 25 healthy controls (HCs) matched for gender, age and years of education were obtained. A seed-based method that imposed a template on the whole brain was used to assess the resting-state functional connectivity (rsFC) of each hippocampal subfield.

resultsPatients with MDD demonstrated increased connectivity in the left premotor cortex (PMC) and reduced connectivity in the right insula with the CA seed region. Increased connectivity was reported in the left orbitofrontal cortex (OFC) and left ventrolateral prefrontal cortex (vlPFC) with the DG seed region. The subiculum seed region revealed increased connectivity with the left premotor cortex (PMC), the right middle frontal gyrus (MFG), the left ventrolateral prefrontal cortex (vlPFC) and reduced connectivity with the right insula. ROC curves confirmed that the differences between groups were statistically significant.

conclusionThe results suggest that the CA, DG and subiculum have significant involvement with MDD. Specifically, the abnormal functional connectivity of the CA may be related to bias of coding and integration of information in patients with MDD. The abnormal functional connectivity of the DG may be related to the impairment of working memory in patients with MDD, and the abnormal functional connectivity of the subiculum may be related to cognitive impairment and negative emotions in patients with MDD.

Indexed as

Neural PathwaysRestAdultCerebral CortexFemaleHippocampusHumansMajor Depressive DisorderMaleCornu ammonisDentate gyrusHippocampal subfieldsMajor depressive disorderResting-state functional connectivitySubiculum

Identifiers

PMID32066415
PMCPMC7026985

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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.