ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024
How fiber bundle alterations differ in presumed LATE and amnestic Alzheimer's disease.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Progression of fiber bundle damage in amnestic Alzheimer's disease and LATE: a 2-year fixel-based study.GeroScience · 2026Article
- Early Microstructural Changes in the Left Inferior Fronto-Occipital Fasciculus: A Key Factor in Probable Alzheimer's Disease Patients With Slow Gait Speed.Brain and behavior · 2026Article
- White matter microstructural and macrostructural profiles during midlife reveal sex differences between men and women at different menopausal stages.Scientific reports · 2025Article
- Relation of Alzheimer's disease-related TDP-43 proteinopathy to metrics from diffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI).Neurobiology of aging · 2025Article
- White matter structural changes in the visual pathway of thyroid-associated ophthalmopathy patients: a free water and multi-shell diffusion imaging study.Frontiers in neurology · 2025Article
- TDP-43-proteinopathy at the crossroads of tauopathy: on copathology and current and prospective biomarkers.Frontiers in cellular neuroscience · 2025Review
- How fiber bundle alterations differ in presumed LATE and amnestic Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
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8 authors.
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Abstract
introductionTypical Alzheimer's disease (AD) and limbic-predominant age-related TAR DNA-binding protein 43 (TDP-43) encephalopathy (LATE) are two neurodegenerative diseases that present with a similar initial amnestic clinical phenotype but are associated with distinct proteinopathies.
methodsWe investigated white matter (WM) fiber bundle alterations, using fixel-based analysis, a state-of-the-art diffusion magnetic resonance imaging model, in early AD, presumed LATE, and controls. We also investigated regional cortical atrophy.
resultsBoth amnestic AD and presumed LATE patients exhibited WM alterations in tracts of the temporal and limbic lobes and in callosal fibers connecting superior frontal gyri. In addition, presumed LATE patients showed alterations in callosal fibers connecting the middle frontal gyri and in the cerebello-thalamo-cortical tract. Cortical thickness was reduced in regions connected by the most altered tracts. DISCUSSION: These findings, the first to describe WM fiber bundle alterations in presumed LATE, are consistent with results on cortical atrophy and with the staging system of tau or TDP-43 accumulation. HIGHLIGHTS: Fixel-based analysis revealed white matter (WM) fiber bundle alterations in presumed limbic-predominant age-related TAR DNA-binding protein 43 encephalopathy (LATE) patients identified by isolated episodic/limbic amnesia, the absence of positive Alzheimer's disease (AD) biomarkers, and no other neurological diagnosis after 2 years of follow-up. Presumed LATE and amnestic AD shared similar patterns of WM alterations in fiber bundles of the limbic and temporal lobes, in congruence with their similar limbic cognitive phenotype. Presumed LATE differed from AD by the alteration of the callosal fibers connecting the middle frontal gyri and of the cerebello-thalamo-cortical tract. WM fiber bundle alterations were consistent with results on regional cortical atrophy. The different anatomical patterns of WM degeneration could provide information on the propagation pathways of distinct proteinopathies.
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