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A Visual Description of the Dissection of the Cerebral Surface Vasculature and Associated Meninges and the Choroid Plexus from Rat Brain
Published on: November 14, 2012
Structural indices of brain aging in methamphetamine use disorder
Johannes Petzold1, Jean-Baptiste F Pochon2, Dara G Ghahremani2
1Jane and Terry Semel Institute of Neuroscience and Human Behavior, and Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, CA, USA; Department of Psychiatry and Psychotherapy, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.
Methamphetamine use disorder (MUD) is linked to accelerated brain aging, showing premature brain atrophy and white matter lesions in individuals aged 26-54. These changes may impact cognition and treatment effectiveness.
Area of Science:
- Neuroscience
- Addiction Medicine
- Radiology
Background:
- Global methamphetamine use is increasing.
- Methamphetamine use is associated with neurological conditions like stroke, Parkinsonism, and dementia.
- These conditions suggest methamphetamine may accelerate brain aging.
Purpose of the Study:
- To investigate if individuals with methamphetamine use disorder (MUD) exhibit accelerated brain aging.
- To compare structural brain aging indices in MUD patients during early abstinence with healthy controls (HC).
Main Methods:
- Retrospective study comparing MUD (n=89) and HC (n=89) participants (ages 26-54).
- Analysis of T1-weighted MRI scans for brain volume/cerebrospinal fluid (BV/CSF) index, white matter hyperintensities, and choroid plexus volume.
- Age- and sex-matched groups were utilized.
Main Results:
- MUD group showed a lower BV/CSF index and larger white matter hyperintensities and choroid plexus volumes (p<0.01).
- Regression analyses indicated different age trajectories for BV/CSF index and choroid plexus volume in MUD.
- Larger white matter hyperintensities were observed in older participants and the MUD group, independent of age.
Conclusions:
- Individuals with MUD exhibit premature brain pathology, including atrophy and choroid plexus abnormalities.
- This pathology may stem from cerebrovascular damage and choroid plexus dysfunction.
- Accelerated brain aging in MUD could impair cognition and reduce the effectiveness of behavioral therapies.
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