Abstract
Introduction: Primary age-related tauopathy (PART) is characterized by the presence of neurofibrillary tangles and absent-minimal β-amyloid deposition. Transactive response DNA-binding protein of 43 kDa (TDP-43), a third protein, has recently garnished a lot of attention in Alzheimer's disease where it is associated with memory loss and amygdala and hippocampal atrophy. We aimed to determine whether TDP-43 is associated with brain atrophy in PART. Methods: We assessed the frequency of TDP-43 in PART and performed voxel-level analysis in SPM12, as well as region-of-interest analysis using linear regression modeling, controlling for variables of interest, to assess for associations between TDP-43 and brain atrophy. Results: Of 116 PART cases, 31 (26.7%) had TDP-43. The presence of TDP-43 was associated with significantly greater amygdala, hippocampal, and anterior temporal atrophy in both the region-of-interest and the voxel level analyses. Discussion: TDP-43 is associated with greater brain atrophy in PART.
Original language | English (US) |
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Pages (from-to) | 799-806 |
Number of pages | 8 |
Journal | Alzheimer's and Dementia |
Volume | 15 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2019 |
Keywords
- Atrophy
- Hippocampus
- MRI
- PART
- TDP-43
- Tauopathy
ASJC Scopus subject areas
- Epidemiology
- Health Policy
- Developmental Neuroscience
- Clinical Neurology
- Geriatrics and Gerontology
- Cellular and Molecular Neuroscience
- Psychiatry and Mental health