Results 111 to 120 of about 472,554 (253)

Limbic Structural Alterations and Structural Covariance Across Prodromal Phenotypes and Early Parkinson's Disease

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Non‐motor symptoms may precede motor diagnosis in Parkinson's disease (PD), but whether distinct prodromal phenotypes exhibit differential limbic structural alterations remains unclear. Purpose To investigate limbic structural alterations across prodromal PD phenotypes defined by rapid eye movement sleep behavior disorder (RBD) and ...
Yuanyuan Zhao   +6 more
wiley   +1 more source

Optic Nerve Thickness Assessed by Ocular Ultrasonography in Obstructive Sleep Apnea

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives Obstructive sleep apnea (OSA) has been associated with various ocular complications, yet ultrasonographic evaluation of optic nerve thickness and its relationship with nocturnal hypoxemia remains poorly understood. This study aimed to evaluate optic nerve thickness and globe dimensions using ocular ultrasonography in patients with different ...
Buğra Kerget   +4 more
wiley   +1 more source

Sex Differences in Fall Frequency, Risk Factors, and Outcomes in Parkinson's Disease: A Cross‐Sectional Analysis

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Female sex is an independent fall risk factor in Parkinson's disease (PD), yet sex‐specific fall patterns remain unclear. Objectives To compare sex‐specific fall risk and outcomes across PD, prodromal alpha‐synucleinopathy (PAS), and healthy controls (HC); estimate fall frequency across PD progression; and assess how sex modifies ...
Joaquin A. Vizcarra   +197 more
wiley   +1 more source

Tracking Genetic Parkinson's Disease with Molecular Imaging: A Systematic Review

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) is a worldwide, complex neurodegenerative disorder influenced by both genetic and environmental factors. Around 15–20% of PD cases are linked to genetic mutations, providing insights into the disease's pathogenesis.
Chiara Meneghini   +5 more
wiley   +1 more source

Disease‐Duration–Specific Percentiles for Prospective Subtyping of Parkinson's Disease: A PPMI‐Based Study

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) is clinically heterogeneous, with variable progression rates that complicate clinical trial design. The data‐driven diffuse malignant (DM), intermediate (IM), and mild‐motor predominant (MMP) subtyping model has prognostic value but lacks disease duration–specific thresholds for prospective use in disease ...
Ahmed Negida   +4 more
wiley   +1 more source

Machine Learning Prediction of Hoehn and Yahr Scores at 5‐Years Post‐123I‐Ioflupane SPECT Imaging in a Real‐World Parkinson's Disease Dataset

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) progression is highly heterogeneous, complicating clinical management and prognostication. While machine learning models have been developed using research datasets such as Parkinson's Precision Medicine Initiative (PPMI) and Parkinson's Disease Biomarkers Program (PDBP), their clinical translatability is ...
Xuehua Ye   +9 more
wiley   +1 more source

The Incidence of Sensorineural Hearing Loss Diagnoses in People with and without Parkinson's Disease

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) and sensorineural hearing loss (SNHL) are both prevalent conditions among older adults. Although increasing number of studies have investigated SNHL as a risk factor for PD, it is not well known how diagnosed PD affects the likelihood of SNHL diagnosis.
Kaisa Hokkinen   +4 more
wiley   +1 more source

JAK2 Variant and Parkinsonian Syndromes: Coincidence or Pathophysiological Link?

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background JAK2 variants are a hallmark of myeloproliferative neoplasms (MPNs), including polycythemia vera and essential thrombocythemia. These disorders are often associated with thrombotic and inflammatory complications. From a movement disorder perspective, chorea is a rare but well‐recognized neurological occurrence in this context ...
Elena Ardila Jurado   +5 more
wiley   +1 more source

Cyclic alternating pattern analysis in REM sleep behavior disorder

open access: yes, 2013
Rapid eye movement (REM) sleep behavior disorder (RBD) is a type of REM parasomnia characterized by complex motor activity during REM sleep. In this study, cyclic alternating pattern (CAP) in patients with idiopathic RBD was analyzed to evaluate the ...
Benbir, Gülçin   +4 more
core   +1 more source

Sleep‐Autonomic Interactions in Parkinson's Disease and Multiple System Atrophy: A Comparative Study Using Structural Equation Modeling

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) and multiple system atrophy (MSA) are α‐synucleinopathies with overlapping autonomic and sleep dysfunction, but distinct trajectories. Objectives This study compared sleep and autonomic profiles in PD and MSA and elucidated disease‐specific associations using structural equation modeling (SEM).
Bora Jin   +5 more
wiley   +1 more source

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