Evidence map›Paper›PMID 34316005›Full record

ArticleMolecular psychiatry2021

Resolving heterogeneity in schizophrenia through a novel systems approach to brain structure: individualized structural covariance network analysis.

Zhaowen Liu, Lena Palaniyappan, Xinran Wu, Kai Zhang, Jiangnan Du, Qi Zhao, Chao Xie, Yingying Tang, Wenjun Su, Yarui Wei and 11 more

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 2 pooled it
10.7field-weighted citation impact, top 1% 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

70 citing papers in PubMed, 2 syntheses or guidelines pooled it, 145 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Tracking early cognitive decline in preclinical AD with brain MRI similarity.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  11. Article
  12. Article
  13. GABAMolecular psychiatry · 2026
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

10 more citing papers are in PubMed but not listed here.

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

21 authors at 9 institutions in 7 countries.

Zhaowen Liu *Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.
Lena Palaniyappan *Department of Psychiatry and Robarts Research Institute, University of Western Ontario, London, ON, Canada.
Xinran WuInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.
Kai ZhangSchool of Computer Science and Technology, East China Normal University, Shanghai, P. R. China.
Jiangnan DuInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.
Qi ZhaoInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.
Chao XieInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.
Yingying TangShanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China.
Wenjun SuShanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China.
Yarui WeiDepartment of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China.
Kangkang XueDepartment of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China.
Shaoqiang HanDepartment of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China.
Shih-Jen TsaiInstitute of Brain Sciences, National Yang-Ming Chiao-Tung University, Taipei, Taiwan.
Ching-Po LinKey Laboratory of Computational Neuroscience and Brain Inspired Intelligence, Fudan University, Ministry of Education, Shanghai, P. R. China.ORCID http://orcid.org/0000-0001-6848-8776
Jingliang ChengDepartment of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China. cjr.chjl@vip.163.com.
Chunbo LiShanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China.
Jijun WangShanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China.
Barbara J SahakianInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.ORCID http://orcid.org/0000-0001-7352-1745
Trevor W RobbinsInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China.ORCID http://orcid.org/0000-0003-0642-5977
Jie ZhangInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China. zhangjie80@fudan.edu.cn.ORCID http://orcid.org/0000-0002-5016-9192
Jianfeng FengInstitute of Science and Technology for Brain Inspired Intelligence, Fudan University, Shanghai, P. R. China. jffeng@fudan.edu.cn.
Fudan University · CNHenan University of Technology · CNShanghai Jiao Tong University · CNNational Yang Ming Chiao Tung University · TWUniversity of Cambridge · GBBroad Institute · USEast China Normal University · CNWestern University · CAZhejiang Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reliable mapping of system-level individual differences is a critical first step toward precision medicine for complex disorders such as schizophrenia. Disrupted structural covariance indicates a system-level brain maturational disruption in schizophrenia. However, most studies examine structural covariance at the group level. This prevents subject-level inferences. Here, we introduce a Network Template Perturbation approach to construct individual differential structural covariance network (IDSCN) using regional gray-matter volume. IDSCN quantifies how structural covariance between two nodes in a patient deviates from the normative covariance in healthy subjects. We analyzed T1 images from 1287 subjects, including 107 first-episode (drug-naive) patients and 71 controls in the discovery datasets and established robustness in 213 first-episode (drug-naive), 294 chronic, 99 clinical high-risk patients, and 494 controls from the replication datasets. Patients with schizophrenia were highly variable in their altered structural covariance edges; the number of altered edges was related to severity of hallucinations. Despite this variability, a subset of covariance edges, including the left hippocampus-bilateral putamen/globus pallidus edges, clustered patients into two distinct subgroups with opposing changes in covariance compared to controls, and significant differences in their anxiety and depression scores. These subgroup differences were stable across all seven datasets with meaningful genetic associations and functional annotation for the affected edges. We conclude that the underlying physiology of affective symptoms in schizophrenia involves the hippocampus and putamen/pallidum, predates disease onset, and is sufficiently consistent to resolve morphological heterogeneity throughout the illness course. The two schizophrenia subgroups identified thus have implications for the nosology and clinical treatment.

Indexed as

SchizophreniaBrainGray MatterHumansMagnetic Resonance ImagingSystems Analysis

Identifiers

PMID34316005
OpenAlexW3183311417

What OpenQuestion holds

Textmetadata
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.