Results 121 to 130 of about 25,095 (260)

White matter hyperintensities are associated with locus coeruleus atrophy and astrocytic β₂-adrenergic receptor expression. [PDF]

Alzheimers Dement
Abstract INTRODUCTION White matter hyperintensities (WMHs) are a robust marker of brain aging and dementia risk, typically attributed to vascular pathology. However, impaired astrocytic support may also contribute. The locus coeruleus (LC), which degenerates early in aging and Alzheimer's disease, provides widespread noradrenergic projections that ...
Vidal V, Farías G, Delgado C, Delano PH, Vergara RC, Orellana P, Ossandón T, Crossley NA, Gonzalez-Campo C, Naismith SL, Gonzalez-Gomez R, Coronel-Oliveros C, Ibáñez A, Wainstein G, Sanders RD, Shine JM, Medel V.   +16 more
europepmc   +2 more sources

Perinatal Post‐Anoxic Spinal Cord Injury: A Barrier to Pallidal Neuromodulation? About 2 Cases

Movement Disorders Clinical Practice, EarlyView.
Marylou Grasso, Cassandra Coelho, Emilie Chan‐Seng, Philippe Coubes, Gaëtan Poulen   +4 more
wiley   +1 more source

[18F]Fluorodeoxyglucose positron emission tomography ([18F]FDG PET) Characterizes Neurodegeneration Levels Across the α‐Synucleinopathy Continuum

Movement Disorders, EarlyView.
Abstract Background [18F]Fluorodeoxyglucose positron emission tomography ([18F]FDG PET) represents an endorsed neurodegeneration biomarker in neuronal α‐synucleinopathies. Idiopathic/isolated rapid eye movement (REM) sleep behavior disorder (iRBD) represents a prodromal stage of such disorders.
Beatrice Orso, Ignacio Roura, Pietro Mattioli, Francesco Famà, Federico Massa, Luigi Lorenzini, Andrea Brugnolo, Nicola Girtler, Mattia Losa, Stefano Raffa, Luca Sofia, Monica Roascio, Gabriele Arnulfo, Silvia Morbelli, Matteo Pardini, Dario Arnaldi   +15 more
wiley   +1 more source

Co‐ and Multi‐Pathologies in Parkinson's Disease: An International Parkinson and Movement Disorder Society Scientific Issues Committee Review

Movement Disorders, EarlyView.
Abstract Parkinson's disease (PD) has been historically defined as a disease of striatal dopamine deficiency secondary to degeneration of dopaminergic neurons in the substantia nigra pars compacta, related to the presence of Lewy bodies and Lewy neurites.
Michele Matarazzo, Per Borghammer, Inas Elsayed, Jennifer G. Goldman, Yue Huang, Katja Lohmann, Per Svenningsson, Lorraine V. Kalia, Daniela Berg, Jeffrey H. Kordower, the MDS Scientific Issues Committee   +10 more
wiley   +1 more source

From Uncertainty to Pathogenicity: Resolving a CSF1R Variant of Uncertain Significance Using Long‐Read Transcriptomics

Movement Disorders, EarlyView.
Abstract Background CSF1R‐related disorder (CSF1R‐RD) is a severe autosomal dominant leukoencephalopathy characterized by progressive cognitive, neuropsychiatric, and motor decline. Although genetic testing is widely available, numerous likely pathogenic variants in CSF1R frequently remain classified as variants of uncertain significance (VUS ...
Charles Wade, Kylie Montgomery, Gabriela E. Jones, Peter Sellars, Akram A. Hosseini, Simon Paine, Henry Houlden, Mina Ryten, David S. Lynch   +8 more
wiley   +1 more source

Evaluating the Influence of Injury‐Induced Microstructural Variations on the Efficacy of a Diffusion MRI‐Derived Axon Diameter Surrogate

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate the utility of a recently demonstrated diffusion MRI derived axon diameter surrogate measure (∆D⟂) under pathologic conditions induced by a spinal cord injury model. Methods Contusion injuries were performed on the thoracic–lumbar spinal cord of adult male rats.
Hannah E. Alderson, Chaoqi Mu, Li Min Chen, Mark D. Does, Kevin D. Harkins   +4 more
wiley   +1 more source

Ultrafast fMRI Detects Age‐Related Changes in Harmonics of Cardiac Pulsations in the Brain at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Aging impacts pulsatility of blood vessels in the brain, reflecting vascular health. Resolving characteristics of cardiac pulsatility requires faster acquisitions than traditional fMRI. An ultrafast fMRI method was developed and applied to sample several harmonics of cardiac pulsations at 7 T.
Charles Marchini, Dema Abdelkarim, Yuhui Chai, Monica Fabiani, Gabriele Gratton, Bradley P. Sutton   +5 more
wiley   +1 more source

Multiple‐TE Based Blood–Brain‐Barrier Water Exchange Time Measurement Using a TE‐Resolved 3D TSE Stack‐Of‐Spirals Readout

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a slice‐wise blurring‐free and densely sampled TE‐resolved multiple‐TE (mTE) ASL sequence (TASL) for measuring blood–brain barrier (BBB) water exchange time. Methods A 3D TSE spiral‐readout pCASL sequence was modified to enable TE‐resolved acquisition.
Bo Li, Yiran Li, Xiao Liang, Amnah Mahroo, Manuel Taso, Marta Vidorreta Díaz de Cerio, Lucas Lemos Franco, Yulin Chang, María Asunción Fernández Seara, Matthias Günther, John A. Detre, Ze Wang   +11 more
wiley   +1 more source

A Schizophrenia‐Spectrum Presentation with Panda Sign: Huntington's Disease Confirmed, Wilson Disease Excluded

Movement Disorders Clinical Practice, EarlyView.
Eva‐Maria Tsapakis, Georgia Zafeiridou, Elizabeth Psoma, Angelos Giannoutsos, Andreas Kiryttopoulos, Konstantinos N. Fountoulakis   +5 more
wiley   +1 more source

Nomogram integrating MRI radiomics and white matter hyperintensity grading for predicting overall survival in patients with non‐small cell lung cancer and brain metastases receiving whole‐brain radiotherapy

Precision Radiation Oncology, EarlyView.
A prognostic nomogram integrating radiomic features and white matter hyperintensity (WMH) grading was developed to enable individualized survival prediction in patients with brain metastases (BMs). Integration of these imaging biomarkers into the clinical model enhanced predictive performance, indicating their incremental prognostic value for BM ...
Jianan Ni, Yuefeng Lu, Haoli Xu, Xuni Xu, Mengjing Zhao, Yingnan Xue, Gang Li, Yuxia Duan   +7 more
wiley   +1 more source