Evidence map›Paper›PMID 41804549›Full record

SynthesisDialogues in clinical neuroscience2026

Unravelling the role of the gut microbiome in antipsychotic-induced weight gain and metabolic dysfunction in humans and rodents: A systematic review.

Maximilian Tufvesson-Alm, Louise Walsh, Sinead Pierce, Finola Keohane, Gerard Clarke, Karen O'Connor, John F Cryan, Harriet Schellekens

Abstract readSystematic Review
In one paragraph

Synthesis in Dialogues in clinical neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

8 authors.

Maximilian Tufvesson-AlmAPC Microbiome Ireland, University College Cork, Cork, Ireland.ORCID 0000-0002-5481-745X
Louise WalshAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Sinead PierceRISE Early Intervention in Psychosis service in South Lee, Cork, Ireland.
Finola KeohaneAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Gerard ClarkeAPC Microbiome Ireland, University College Cork, Cork, Ireland.
Karen O'ConnorRISE Early Intervention in Psychosis service in South Lee, Cork, Ireland.
John F CryanAPC Microbiome Ireland, University College Cork, Cork, Ireland.ORCID 0000-0001-5887-2723
Harriet SchellekensAPC Microbiome Ireland, University College Cork, Cork, Ireland.ORCID 0000-0002-6065-3797

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Second-generation antipsychotics are frequently linked to weight gain and metabolic dysfunction, yet the mechanisms driving these effects remain elusive. The gut microbiome has been proposed as a potential mediator of these adverse outcomes. This study aimed to investigate the role of the gut microbiota in antipsychotic-induced weight gain. A systematic search of PubMed and Embase was conducted. In total, 24 publications were included in this review, including clinical and preclinical observational and intervention studies. Collectively, there is strong evidence that atypical antipsychotic-induced weight gain and metabolic dysfunction is accompanied by microbiota alterations. However, there is a lack of consensus with regards to the exact mechanisms and involvement of the microbiome in antipsychotic-induced weight gain. Nevertheless, a few patterns and common observations were found across studies, such as reduced diversity, increased

Indexed as

Antipsychotic AgentsGastrointestinal MicrobiomeMetabolic DiseasesWeight GainAnimalsHumansAntipsychotic Agentsatypical antipsychoticsGut-brain axisschizophreniaweight gain

Identifiers

PMID41804549
PMCPMC12978182

What Socratic 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 Socratic graph.