Ex Vivo MRI and Morphometry in MPTP-Treated Marmoset Parkinson's Model

Encompassing ex vivo T2-weighted magnetic resonance images from control and MPTP-treated marmosets, used to study structural brain changes in a non-human primate model of Parkinson's disease. It includes volume measurements of the caudate, putamen, and substantia nigra, and employs tensor-based morphometry for hypothesis-free assessment of widespread cortical atrophy.

Use Cases

• Compare volume measurements of the caudate, putamen, and substantia nigra between control and MPTP-treated marmoset groups to quantify regional atrophy.
• Apply tensor-based morphometry to the MRI data to identify patterns of widespread cortical atrophy caused by MPTP toxin insult.
• Develop imaging biomarkers for Parkinson's disease by analyzing structural changes in the nigrostriatal pathway and extra-nigral brain structures from the MRI scans.
• Correlate findings of regional cortical atrophy from tensor-based morphometry with specific motor or cognitive deficit models in non-human primates.

Strengths

• Data is derived from a non-human primate model, specifically marmosets, whose neuroanatomy is considered essential for developing imaging biomarkers of Parkinson's disease.
• Analysis includes both targeted volume measurements of key brain structures (caudate, putamen, substantia nigra) and a hypothesis-free, extensive assessment via tensor-based morphometry.
• Dataset is associated with a peer-reviewed research publication focusing on the structural basis of Parkinson's disease progression.

Limitations

• Data is from ex vivo imaging, which may not fully represent in vivo conditions or be directly applicable for developing non-invasive, in vivo diagnostic tools.
• Sample size is not specified, which limits assessment of statistical power for detecting significant atrophy or morphometric changes.
• The MPTP-treated marmoset model represents a toxin-induced Parkinsonism, which may not capture all aspects of idiopathic Parkinson's disease progression in humans.

Provenance

Source

Dryad digital repository.

Collection Method

Ex vivo T2-weighted magnetic resonance imaging of control and MPTP-treated marmoset brains, followed by volume measurement and tensor-based morphometry analysis.

Freshness

Last updated 2020-06-24.