Related Experiment Video
Updated: Nov 25, 2025
11:50
A Standardized Pipeline for Examining Human Cerebellar Grey Matter Morphometry using Structural Magnetic Resonance Imaging
Published on: February 4, 2022
4.3K
Longitudinal Macro/Microstructural Alterations of Different Callosal Subsections in Parkinson's Disease Using
Jingjing Wu1, Tao Guo1, Cheng Zhou1
1Department of Radiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Frontiers in Aging Neuroscience
|December 17, 2020
Summary
Parkinson's disease progressively damages the corpus callosum (CC) structure over time, impacting motor and non-motor functions. Specific CC subsections show distinct relationships with clinical symptoms in PD patients.
Area of Science:
- Neuroscience
- Neurology
- Medical Imaging
Background:
- The corpus callosum (CC) plays a crucial role in both motor and non-motor functions in Parkinson's disease (PD).
- CC is not structurally uniform; damage to specific subsections correlates with distinct clinical deficits.
Purpose of the Study:
- To investigate cross-sectional and longitudinal structural changes in CC subsections in PD.
- To evaluate the relationship between CC structural alterations and clinical performance in PD patients.
Main Methods:
- Utilized 3D imaging to divide the CC into five subsections based on callosal-cortical connectivity.
- Analyzed fractional anisotropy (FA), mean diffusivity (MD), and volume of CC subsections in 39 PD patients and 82 controls.
- Employed regression models to assess structure-clinical performance relationships.
Main Results:
- No significant baseline macro/microstructural differences were observed between PD patients and controls.
- Over time, PD showed decreased FA and increased MD in most CC subsections, with reduced motor subsection volume.
- Specific CC subsections correlated with mood (temporal-parietal-occipital FA, motor volume) and motor (somatosensory MD) domains.
Conclusions:
- CC structure and its subsections are initially preserved in early PD but progressively degrade.
- Distinct CC subsections exhibit specific associations with clinical performance in Parkinson's disease.
