Evidence mapPaperPMID 39902241Full record

SynthesisFrontiers in psychiatry2024

Metformin for neurocognitive dysfunction in schizophrenia: a systematic review.

Zhen-Juan Qin, Zhan-Ming Shi, Li-Juan Li, Xin Wei, Hui-Lin Hu, Wei Wei, Zhi-Yuan Xie, Hang-Xi Ji, Yu-Hua Wei, Wei Zheng

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Zhen-Juan Qin *Department of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Zhan-Ming Shi *Department of Psychiatry, Chongqing Jiangbei Mental Health Center, Chongqing, China.
Li-Juan Li *Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.
Xin WeiDepartment of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Hui-Lin HuDepartment of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Wei WeiDepartment of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Zhi-Yuan XieDepartment of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Hang-Xi JiDepartment of Psychiatry, Chongqing Jiangbei Mental Health Center, Chongqing, China.
Yu-Hua WeiDepartment of Psychiatry, The Brain Hospital of Guangxi Zhuang Autonomous Region, LiuZhou, China.
Wei ZhengDepartment of Psychiatry, The Affiliated Brain Hospital, Guangzhou Medical University, Guangzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The efficacy and safety of metformin for addressing neurocognitive dysfunction in schizophrenia remain inconclusive. This systematic review evaluates the evidence from randomized controlled trials (RCTs) on the effects of metformin on neurocognitive function in patients with schizophrenia. Methods: A comprehensive search of Chinese databases (WanFang, Chinese Journal Net) and English databases (PubMed, EMBASE, PsycINFO, and Cochrane Library) was conducted to identify RCTs assessing metformin's impact on neurocognitive outcomes in schizophrenia. Results: Four RCTs involving 271 patients with schizophrenia were included. Three RCTs (75%) demonstrated significant improvements in neurocognitive function with metformin compared to controls, as assessed by the MATRICS Consensus Cognitive Battery, Repeatable Battery for the Assessment of Neuropsychological Status, and Mini-Mental State Examination, but not the Brief Assessment of Cognition in Schizophrenia. Two RCTs (50%) evaluated metformin's effects on total psychopathology and found no significant differences between groups. Adverse events were reported in two RCTs, with inconsistent findings on decreased appetite and diarrhea. Other adverse events and discontinuation rates were comparable between groups. Conclusion: Preliminary evidence suggests that metformin may improve neurocognitive function in schizophrenia. However, further large-scale, double-blind, high quality RCTs are warranted to validate these findings.

Indexed as

efficacymetforminneurocognitive dysfunctionschizophreniasystematic review

Identifiers

PMID39902241
PMCPMC11788895

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.