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Efficient and Scalable Production of Full-length Human Huntingtin Variants in Mammalian Cells using a Transient Expression System
Published on: December 10, 2021
Variation within the Huntington's disease gene influences normal brain structure
Mark Mühlau1, Juliane Winkelmann, Dan Rujescu
1Department of Neurology, Technische Universität München, Munich, Germany. muehlau@lrz.tum.de
Plos One
|January 12, 2012
Summary
Genetic variations in the IT15 gene, specifically CAG repeat length, influence normal human brain structure, particularly in the pallidum. This finding offers insights into both healthy and diseased brain development.
Area of Science:
- Neurogenetics
- Human Brain Anatomy
- Neurodegenerative Diseases
Background:
- The genetic basis for variations in normal and diseased brain structure is not fully understood.
- Trinucleotide repeat expansions are known to cause neurodegenerative disorders like Huntington's disease.
Purpose of the Study:
- To investigate if variations in the IT15 gene influence normal human brain structure.
- To test the hypothesis that CAG repeat length in the IT15 gene affects brain anatomy.
Main Methods:
- Studied 278 healthy individuals.
- Determined CAG repeat length in the IT15 gene.
- Analyzed high-resolution T1-weighted MRI scans using voxel-based morphometry.
Main Results:
- Found a positive correlation between longer CAG repeat lengths and increased gray matter (GM) in the pallidum.
- Observed an interaction between CAG repeat length and age in the pallidum.
- The pallidum is a brain region implicated in Huntington's disease.
Conclusions:
- A specific trinucleotide repeat influences normal human brain structure.
- This genetic variation impacts brain anatomy in healthy individuals.
- Results have implications for understanding both healthy brain function and neurodegenerative conditions.
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