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A Standardized Pipeline for Examining Human Cerebellar Grey Matter Morphometry using Structural Magnetic Resonance Imaging
Published on: February 4, 2022
Cerebellar volume in patients with dementia
Leonardo Baldaçara1, João Guilherme Fiorani Borgio, Walter André dos Santos Moraes
1Laboratório Interdisciplinar de Neurociências Clínicas, Department of Psychiatry, Universidade Federal de São Paulo, Brazil. leonardobaldassara@gmail.com
Revista Brasileira De Psiquiatria (Sao Paulo, Brazil : 1999)
|August 11, 2011
Summary
Reduced cerebellar volume is an early indicator of Alzheimer's disease progression, even before dementia symptoms appear. This finding highlights the cerebellum's role in cognitive decline and disease prognosis.
Area of Science:
- Neuroimaging
- Neurology
- Gerontology
Background:
- Alzheimer's disease (AD) is a progressive neurodegenerative disorder.
- Cerebellar involvement in AD is not fully understood.
- Early detection and prognostic markers for AD are crucial.
Purpose of the Study:
- To investigate cerebellar volume changes in subjects across different stages of Alzheimer's disease.
- To determine the relationship between cerebellar volume reduction and cognitive decline.
- To assess the predictive value of cerebellar volume for dementia onset.
Main Methods:
- Magnetic resonance imaging (MRI) was used to assess cerebellar and temporal lobe volumes in 96 subjects.
- Cognitive function was evaluated using the Mini-Mental State Examination (MMSE) and Functional Activities Questionnaire (FAQ).
- Subjects were stratified into five groups based on the Clinical Dementia Rating (CDR) scale, with a subset re-evaluated after two years.
Main Results:
- Significant reductions in cerebellar hemispheres, posterior lobe, vermis, and temporal lobe volumes were observed with increasing AD severity.
- Cerebellar and temporal lobe volumes positively correlated with language, attention, and total scores on cognitive assessments (MMSE and FAQ).
- Reduced temporal lobe, posterior cerebellar lobe, and vermal volumes at baseline were identified as risk factors for dementia onset.
Conclusions:
- This study provides the first evidence of reduced cerebellar volume in the predementia stage of Alzheimer's disease.
- Cerebellar volume reduction is associated with cognitive decline and disease progression in AD.
- While not directly implicated in AD's origin, the cerebellum offers valuable prognostic insights for Alzheimer's disease.
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