4.5 Article

Volumetric differences in gray and white matter of cerebellar Crus I/II across the different clinical stages of schizophrenia

期刊

PSYCHIATRY AND CLINICAL NEUROSCIENCES
卷 75, 期 8, 页码 256-264

出版社

WILEY
DOI: 10.1111/pcn.13277

关键词

cerebellum; clinical stages; Crus I; II; schizophrenia; volumetric differences

资金

  1. Agency for Medical Research and Development (AMED) [JP19dm0307001, JP19dm0207069]
  2. Japan Society for the Promotion of Science (JSPS) KAKENHI [16H06399]
  3. University of Tokyo Center for Integrative Science of Human Behaviour (CiSHuB)
  4. International Research Center for Neurointelligence (WPI-IRCN) at the University of Tokyo Institutes for Advanced Study (UTIAS)

向作者/读者索取更多资源

The study suggests that the morphology of Crus I/II plays a critical role in schizophrenia, with associations found between different genders and disease stages. Additionally, alterations in WM volume of Crus I/II may serve as a potential biological marker for early detection and treatment of individuals with UHR.
Aim Schizophrenia is considered to be a disorder of progressive structural brain abnormalities. Previous studies have indicated that the cerebellar Crus I/II plays a critical role in schizophrenia. We aimed to investigate how specific morphological features in the Crus I/II at different critical stages of the schizophrenia spectrum contribute to the disease. Methods The study involved 73 participants on the schizophrenia spectrum (28 with ultra-high risk for psychosis [UHR], 17 with first-episode schizophrenia [FES], and 28 with chronic schizophrenia) and 79 healthy controls. We undertook a detailed investigation into differences in Crus I/II volume using a semiautomated segmentation method optimized for the cerebellum. We analyzed the effects of group and sex, as well as their interaction, on Crus I/II volume in gray matter (GM) and white matter (WM). Results Significant group x sex interactions were found in WM volumes of the bilateral Crus I/II; the males with UHR demonstrated significantly larger WM volumes compared with the other male groups, whereas no significant group differences were found in the female groups. Additionally, WM and GM volumes of the Crus I/II had positive associations with symptom severity in the UHR group, whereas, in contrast, GM volumes in the FES group were negatively associated with symptom severity. Conclusions The present findings provide evidence that the morphology of Crus I/II is involved in schizophrenia in a sex- and disease stage-dependent manner. Additionally, alterations of WM volumes of Crus I/II may have potential as a biological marker of early detection and treatment for individuals with UHR.

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