Comparison of cerebellar grey matter alterations in bipolar and cerebellar patients: Evidence from voxel-based analysis

Michela Lupo, Giusy Olivito, Andrea Gragnani, Marco Saettoni, Libera Siciliano, Corinna Pancheri, Matteo Panfili, Marco Bozzali, Roberto Delle Chiaie, Maria Leggio

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this study was to compare the patterns of cerebellar alterations associated with bipolar disease with those induced by the presence of cerebellar neurodegenerative pathologies to clarify the potential cerebellar contribution to bipolar affective disturbance. Twenty-nine patients affected by bipolar disorder, 32 subjects affected by cerebellar neurodegenerative pathologies, and 37 age-matched healthy subjects underwent a 3T MRI protocol. A voxel-based morphometry analysis was used to show similarities and differences in cerebellar grey matter (GM) loss between the groups. We found a pattern of GM cerebellar alterations in both bipolar and cerebellar groups that involved the anterior and posterior cerebellar regions (p = 0.05). The direct comparison between bipolar and cerebellar patients demonstrated a significant difference in GM loss in cerebellar neurodegenerative patients in the bilateral anterior and posterior motor cerebellar regions, such as lobules I−IV, V, VI, VIIIa, VIIIb, IX, VIIb and vermis VI, while a pattern of overlapping GM loss was evident in right lobule V, right crus I and bilateral crus II. Our findings showed, for the first time, common and different alteration patterns of specific cerebellar lobules in bipolar and neurodegenerative cerebellar patients, which allowed us to hypothesize a cerebellar role in the cognitive and mood dysregulation symptoms that characterize bipolar disorder.

Original languageEnglish
Article number3511
JournalInternational Journal of Molecular Sciences
Volume22
Issue number7
DOIs
Publication statusPublished - Apr 1 2021

Keywords

  • Bipolar disorder
  • Cerebellar atrophy
  • Cerebellar grey matter volume
  • Voxel-based morphometry

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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