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Dynamic functional brain network connectivity during pseudoword processing relates to children’s reading skill
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Development of a standard of care for patients with valosin-containing protein associated multisystem proteinopathy.
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In: Orphanet journal of rare diseases, vol 17, iss 1 (2022)
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Family history of FXTAS is associated with age-related cognitive-linguistic decline among mothers with the FMR1 premutation.
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In: Journal of neurodevelopmental disorders, vol 14, iss 1 (2022)
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Cortical microstructure in primary progressive aphasia: a multicenter study.
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Illán-Gala, Ignacio; Montal, Victor; Borrego-Écija, Sergi; Mandelli, Maria Luisa; Falgàs, Neus; Welch, Ariane E; Pegueroles, Jordi; Santos-Santos, Miguel; Bejanin, Alexandre; Alcolea, Daniel; Dols-Icardo, Oriol; Belbin, Olivia; Sánchez-Saudinós, Mª Belén; Bargalló, Nuria; González-Ortiz, Sofía; Lladó, Albert; Blesa, Rafael; Dickerson, Bradford C; Rosen, Howard J; Miller, Bruce L; Lleó, Alberto; Gorno-Tempini, Maria Luisa; Sánchez-Valle, Raquel; Fortea, Juan
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In: Alzheimer's research & therapy, vol 14, iss 1 (2022)
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Abstract:
BackgroundCortical mean diffusivity is a novel imaging metric sensitive to early changes in neurodegenerative syndromes. Higher cortical mean diffusivity values reflect microstructural disorganization and have been proposed as a sensitive biomarker that might antedate macroscopic cortical changes. We aimed to test the hypothesis that cortical mean diffusivity is more sensitive than cortical thickness to detect cortical changes in primary progressive aphasia (PPA).MethodsIn this multicenter, case-control study, we recruited 120 patients with PPA (52 non-fluent, 31 semantic, and 32 logopenic variants; and 5 GRN-related PPA) as well as 89 controls from three centers. The 3-Tesla MRI protocol included structural and diffusion-weighted sequences. Disease severity was assessed with the Clinical Dementia Rating scale. Cortical thickness and cortical mean diffusivity were computed using a surface-based approach.ResultsThe comparison between each PPA variant and controls revealed cortical mean diffusivity increases and cortical thinning in overlapping regions, reflecting the canonical loci of neurodegeneration of each variant. Importantly, cortical mean diffusivity increases also expanded to other PPA-related areas and correlated with disease severity in all PPA groups. Cortical mean diffusivity was also increased in patients with very mild PPA when only minimal cortical thinning was observed and showed a good correlation with measures of disease severity.ConclusionsCortical mean diffusivity shows promise as a sensitive biomarker for the study of the neurodegeneration-related microstructural changes in PPA.
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Keyword:
2.1 Biological and endogenous factors; Acquired Cognitive Impairment; Aging; Alzheimer's disease; Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD); Alzheimer’s disease; Aphasia; Biomedical Imaging; Brain Disorders; Case-Control Studies; Clinical Research; Dementia; Diffusion; Diffusion Magnetic Resonance Imaging; Frontotemporal Dementia (FTD); Frontotemporal lobar degeneration; Humans; Magnetic resonance; Magnetic Resonance Imaging; Medical and Health Sciences; Neurodegenerative; Neurological; Neurosciences; Primary Progressive; Primary progressive aphasia; Rare Diseases
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URL: https://escholarship.org/uc/item/4td346vg
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Providing a parent-administered outcome measure in a bilingual family of a father and a mother of two adolescents with ASD: brief report.
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In: Developmental neurorehabilitation, vol 25, iss 2 (2022)
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Computational Models in Electroencephalography.
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In: Brain topography, vol 35, iss 1 (2022)
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Hippocampal ensembles represent sequential relationships among an extended sequence of nonspatial events.
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In: Nature communications, vol 13, iss 1 (2022)
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Protocol for the development of the international population registry for aphasia after stroke (I-PRAISE)
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In: Research outputs 2014 to 2021 (2022)
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An aphasia research agenda – a consensus statement from the collaboration of aphasia trialists
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In: Research outputs 2014 to 2021 (2022)
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Quantitative MRI Biomarkers of Neurodegeneration in Multiple Sclerosis
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Platten, Michael. - : KTH, Medicinsk avbildning, 2022. : Karolinska Institutet, 2022. : Stockholm : KTH, 2022
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Implicit, Explicit, and Predictive Perceptual Processing in Dyslexia
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Raw birdsong data for "Vocal changes in a zebra finch model of Parkinson’s Disease characterized by alpha-synuclein overexpression in the song-dedicated anterior forebrain pathway" ...
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Raw birdsong data for "Vocal changes in a zebra finch model of Parkinson’s Disease characterized by alpha-synuclein overexpression in the song-dedicated anterior forebrain pathway" ...
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Applications of artificial intelligence to aid early detection of dementia: a scoping review on current capabilities and future directions
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Internal and external speech timing mechanisms in persistent developmental stuttering
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Characterizing microRNA-128 as a Therapeutic Target for Vocal Communication Deficits
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Language distance in orthographic transparency affects cross-language pattern similarity between native and non-native languages.
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In: Human brain mapping, vol 42, iss 4 (2021)
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Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
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