Evidence map›Paper›PMID 39754499›Full record

ArticleThe Australian and New Zealand journal of psychiatry2025

Associations between structural brain changes and blood neurofilament light chain protein in treatment-resistant schizophrenia.

Brandon-Joe Cilia, Dhamidhu Eratne, Cassandra Wannan, Charles Malpas, Shorena Janelidze, Oskar Hansson, Ian Everall, Chad Bousman, Naveen Thomas, Alexander F Santillo and 2 more

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Article in The Australian and New Zealand journal of psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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

  1. Pooled it
  2. Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Brandon-Joe CiliaNeuropsychiatry, The Royal Melbourne Hospital, Parkville, VIC, Australia.ORCID 0000-0002-7814-0471
Dhamidhu EratneNeuropsychiatry, The Royal Melbourne Hospital, Parkville, VIC, Australia.ORCID 0000-0002-3226-7645
Cassandra WannanCentre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia.
Charles MalpasDepartment of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia.
Shorena JanelidzeClinical Memory Research Unit, Department of Clinical Sciences, Faculty of Medicine, Lund University, Malmö, Sweden.
Oskar HanssonClinical Memory Research Unit, Department of Clinical Sciences, Faculty of Medicine, Lund University, Malmö, Sweden.
Ian EverallVisiting Professor, King's College London, London, UK.
Chad BousmanDepartment of Medical Genetics, University of Calgary, Calgary, AB, Canada.
Naveen ThomasMental Health and Wellbeing Services, Western Health, St Albans VIC, Australia.
Alexander F SantilloClinical Memory Research Unit, Department of Clinical Sciences, Faculty of Medicine, Lund University, Malmö, Sweden.
Dennis VelakoulisNeuropsychiatry, The Royal Melbourne Hospital, Parkville, VIC, Australia.
Christos PantelisMelbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia.ORCID 0000-0002-9565-0238

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAround 30% of people with schizophrenia are refractory to antipsychotic treatment (treatment-resistant schizophrenia). Abnormal structural neuroimaging findings, in particular volume and thickness reductions, are often described in schizophrenia. Novel biomarkers of active brain pathology such as neurofilament light chain protein are now expected to improve current understanding of psychiatric disorders, including schizophrenia. This study explored whether treatment-resistant schizophrenia individuals exhibit different associations between plasma neurofilament light chain protein levels and regional cortical thickness reductions compared with controls.

methodsPlasma neurofilament light chain protein levels were measured, and T1-weighted magnetic resonance imaging sequences were obtained and processed via FreeSurfer for each participant. General linear models adjusting for age and body mass index were estimated to determine whether the interaction between diagnostic group and plasma neurofilament light chain protein level predicted lower cortical thickness across frontotemporal structures and the insula.

resultsA total of 79 participants were included: 37 treatment-resistant schizophrenia and 42 healthy controls. Significant (false discovery rate-corrected) cortical thinning of the left (

conclusionsThe association between regional thickness reduction of the bilateral insula and left inferior temporal gyrus with plasma neurofilament light chain protein may reflect a neuroprogressive component to schizophrenia, which is not observed in the normal population.

Indexed as

Cerebral CortexNeurofilament ProteinsSchizophreniaSchizophrenia, Treatment-ResistantAdultBiomarkersCase-Control StudiesFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedBiomarkersneurofilament protein LNeurofilament ProteinsbiomarkerneurofilamentneuroimagingSchizophreniatreatment-resistant

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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.