Psychiatry Investig.  2019 May;16(5):336-345. 10.30773/pi.2019.02.10.1.

Long-Term Grey Matter Changes in First Episode Psychosis: A Systematic Review

Affiliations
  • 1Neuroimaging Unit, Technological Facilities,Valdecilla Biomedical Research Institute IDIVAL, Santander, Cantabria, Spain.
  • 2Marqués de Valdecilla University Hospital, Department of Psychiatry, School of Medicine, University of Cantabria, IDIVAL, Santander, Spain. setiensuero@hotmail.com
  • 3CIBERSAM, Biomedical Research Network on Mental Health Area, Madrid, Spain.

Abstract


OBJECTIVE
To determine possible progressive changes of the grey matter at the first stages of the schizophrenia spectrum disorders, and to determine what regions are involved in these changes.
METHODS
We searched the literature concerning studies on longitudinal changes in grey matter in first-episode psychosis using magnetic resonance imaging, especially studies with an interval between scans of more than a year. Only articles published before 2018 were searched. We selected 19 magnetic resonance imaging longitudinal studies that used different neuroimaging analysis techniques to study changes in cerebral grey matter in a group of patients with a first episode of psychosis.
RESULTS
Patients with first episode of psychosis showed a decrease over time in cortical grey matter compared with a group of control subjects in frontal, temporal (specifically in superior regions), parietal, and subcortical regions. In addition to the above, studies indicate that patients showed a grey matter decrease in cerebellum and lateral ventricles volume.
CONCLUSION
The results suggest a decrease in grey matter in the years after the first episode of psychosis. Furthermore, the results of the studies showed consistency, regardless of the methods used in their analyses, as well as the time intervals between image collections.

Keyword

Grey matter; First-episode psychosis; Schizophrenia; Magnetic resonance imaging; Longitudinal

MeSH Terms

Cerebellum
Gray Matter*
Humans
Lateral Ventricles
Longitudinal Studies
Magnetic Resonance Imaging
Neuroimaging
Psychotic Disorders*
Rabeprazole
Schizophrenia
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