Purpose: To assess for associations between hippocampal atrophy and measures of cognitive function, hippocampal magnetization transfer ratio (MTR), and diffusion measures of the fornix, the largest efferent white matter tract from the hippocampus, in patients with multiple sclerosis (MS) and controls.
Materials And Methods: A total of 53 patients with MS and 20 age- and sex-matched healthy controls participated in cognitive testing and scanning including high spatial-resolution diffusion imaging and a T1-MPRAGE scan. Hippocampal volume and fornicial thickness measures were calculated and compared to mean values of fornicial transverse diffusivity, mean diffusivity, longitudinal diffusivity, fractional anisotropy, mean hippocampal MTR, and scores on measures of episodic memory, processing speed, and working memory tasks.
Results: In patients with MS, hippocampal volume was significantly related to fornicial diffusion measures (P<7×10(-4)) and to measures of verbal (P=0.030) and visual spatial (P=0.004) episodic memory and a measure of information processing speed (P<0.037).
Discussion: These results highlight the role of the hippocampus in cognitive dysfunction in patients with MS and suggest that measures of hippocampal atrophy could be used to capture aspects of disease progression.
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http://dx.doi.org/10.1016/j.mri.2013.12.012 | DOI Listing |
Alzheimers Dement (Amst)
January 2025
Weill Institute for Neurosciences, Department of Neurology, Memory and Aging Center University of California, San Francisco San Francisco California USA.
Introduction: Plasma amyloid beta/amyloid beta (Aβ/Aβ) and phosphorylated tau217 (p-tau217) identify individuals with primary Alzheimer's disease (AD). They may detect AD co-pathology in the setting of other primary neurodegenerative diseases, but this has not been systematically studied.
Methods: We compared the clinical, neuroimaging, and neuropathological associations of plasma Aβ/Aβ (mass spectrometry), p-tau217 (electrochemiluminescence), and neurofilament light ([NfL], single molecule array [Simoa]), as markers of AD co-pathology, in a sporadic frontotemporal dementia (FTD) cohort ( = 620).
Neuroimage Rep
December 2024
The Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, New York City, NY, USA.
Introduction: Alzheimer's disease (AD) is a phenotypically and pathologically heterogenous neurodegenerative disorder. This heterogeneity can be studied and disentangled using data-driven clustering techniques.
Methods: We implemented a self-organizing map clustering algorithm on baseline volumetric MRI measures from nine brain regions of interest (ROIs) to cluster 1041 individuals enrolled in the placebo arm of the EXPEDITION3 trial.
Biol Psychiatry Cogn Neurosci Neuroimaging
January 2025
Department of Psychiatry, Washington University in St. Louis, School of Medicine, Saint Louis, MO, USA.
Background: The understanding of the neural correlates of borderline personality disorder (BPD) is limited, but suggests alterations in limbic structures play a role in adult BPD. The developmental course of structural neural differences in BPD is unknown. Whether there is specificity for structural alterations in BPD compared with other psychiatric presentations, such as major depressive disorder (MDD), remains unexplored.
View Article and Find Full Text PDFFortschr Neurol Psychiatr
January 2025
Klinik und Poliklinik für Psychiatrie und Psychotherapie, University Hospital Carl Gustav Carus, Dresden, Germany.
To investigate the diagnostic value of the MTA score according to age, cerebral small vessel disease and in times of automated volumetry. Retrospective analysis of patients with subjective cognitive decline (SCD), amnestic mild cognitive impairment (aMCI), Alzheimer's disease (AD) and mixed dementia (MD) who presented to our outpatient dementia clinic between February 2018 and October 2020. Patients underwent cranial magnetic resonance imaging (MRI) including specific MRI sequences needed for automated volumetry.
View Article and Find Full Text PDFFront Aging Neurosci
January 2025
Department of Neurology, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People's Hospital), Wenzhou, Zhejiang, China.
Background: Recent studies have shown that cerebrospinal fluid (CSF) levels of soluble triggering receptor expressed on myeloid cells 1 (sTREM1) are elevated in individuals with Alzheimer's disease (AD), though the relationship between CSF sTREM1 and hippocampal atrophy remains to be elucidated. The primary aim of this study was to investigate the association between CSF sTREM1 levels and longitudinal changes in hippocampal volumes, and to determine if this relationship is moderated by cognitive status.
Methods: We included 576 participants, comprising 152 cognitively unimpaired (CU) and 424 cognitively impaired (CI) individuals.
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