Cited by 600Schizophrenia research and treatmentPsychopathy, Forensic Psychiatry, Sexual OffendingNeural and Behavioral Psychology Studies

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

Progressive Reduction in Cortical Thickness as Psychosis Develops: A Multisite Longitudinal Neuroimaging Study of Youth at Elevated Clinical Risk

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Abstract

Background Individuals at clinical high risk (CHR) who progress to fully psychotic symptoms have been observed to show a steeper rate of cortical gray matter reduction compared with individuals without symptomatic progression and with healthy control subjects. Whether such changes reflect processes associated with the pathophysiology of schizophrenia or exposure to antipsychotic drugs is unknown. Methods In this multisite study, 274 CHR cases, including 35 individuals who converted to psychosis, and 135 healthy comparison subjects were scanned with magnetic resonance imaging at baseline, 12-month follow-up, or the point of conversion for the subjects who developed fully psychotic symptoms. Results In a traveling subjects substudy, excellent reliability was observed for measures of cortical thickness and subcortical volumes. Controlling for multiple comparisons throughout the brain, CHR subjects who converted to psychosis showed a steeper rate of gray matter loss in the right superior frontal, middle frontal, and medial orbitofrontal cortical regions as well as a greater rate of expansion of the third ventricle compared with CHR subjects who did not convert to psychosis and healthy control subjects. Differential tissue loss was present in subjects who had not received antipsychotic medications during the interscan interval and was predicted by baseline levels of an aggregate measure of proinflammatory cytokines in plasma. Conclusions These findings demonstrate that the brain changes are not explained by exposure to antipsychotic drugs but likely play a role in psychosis pathophysiology. Given that the cortical changes were more pronounced in subjects with briefer durations of prodromal symptoms, contributing factors may predominantly play a role in acute-onset forms of psychosis.

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Metadata

Authors
Cannon, T. D., Chung, Y., He, G., Sun, D., Jacobson, A., van Erp, T. G. M., McEwen, S., Addington, J., Bearden, C. E., Cadenhead, K., Cornblatt, B., Mathalon, D. H., McGlashan, T., Perkins, D., Jeffries, C., Seidman, L. J., Tsuang, M., Walker, E., Woods, S. W., & Heinssen, R.
Affiliations
  • Yale University (US)
  • University of California, Los Angeles (US)
  • University of California, Irvine (US)
  • University of Calgary (CA)
  • University of California San Diego (US)
  • Zucker Hillside Hospital (US)
  • University of California, San Francisco (US)
  • University of North Carolina at Chapel Hill (US)
  • Beth Israel Deaconess Medical Center (US)
  • Emory University (US)
  • National Institute of Mental Health (US)
Corresponding author
Cannon, Tyrone D.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2015-01
Volume
77
Issue
2
Pages
147-157
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2166663076
Cited by
599
References
63
Citations by year
2026: 28 · 2025: 28 · 2024: 38 · 2023: 49 · 2022: 44 · 2021: 73 · 2020: 73 · 2019: 78 · 2018: 38 · 2017: 43 · 2016: 54 · 2015: 44
FWCI
37.92
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Commonwealth of Massachusetts
  • National Institute of Mental Health
  • National Institutes of Health (MH081902, MH066160, MH081928, MH081857, MH082004, P50 MH080272, MH081988, P50 MH066286, MH082022, MH081984)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Clinical Psychology › Psychopathy, Forensic Psychiatry, Sexual Offending
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
clinical high risk for psychosis, transition to psychosis, cortical thickness, gray matter loss, schizophrenia pathophysiology, inflammatory cytokines, frontal cortex, prodromal symptoms, youth
MeSH terms
Adolescent, Cerebral Cortex, Female, Follow-Up Studies, Humans, Longitudinal Studies, Magnetic Resonance Imaging, Male, Organ Size, Psychotic Disorders, Risk, Antipsychotic Agents, Reproducibility of Results, Cytokines, Disease Progression, Young Adult, Prodromal Symptoms

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