Results 41 to 50 of about 240,114 (259)

Abnormal connectivity between the default mode and the visual system underlies the manifestation of visual hallucinations in Parkinson’s disease:A task-based fMRI study [PDF]

, 2015
Background: The neural substrates of visual hallucinations remain an enigma, due primarily to the difficulties associated with directly interrogating the brain during hallucinatory episodes.
Halliday, Glenda M., Hornberger, Michael, Lewis, Simon J. G., Muller, Alana J., O’Callaghan, Claire, Shine, James M.   +5 more
core   +1 more source

Cerebello‐Prefrontal Connectivity Underlying Cognitive Dysfunction in Spinocerebellar Ataxia Type 2

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 2 (SCA2) is a hereditary cerebellar degenerative disorder, with motor and cognitive symptoms. The constellation of cognitive symptoms due to cerebellar degeneration is named cerebellar cognitive affective syndrome (CCAS), which has increasingly been recognized to profoundly impact patients' quality of life;
Ami Kumar, Ruo‐Yah Lai, Zena Fadel, Yicheng Lin, Pia Parekh, Rachel Griep, Ming‐Kai Pan, Sheng‐Han Kuo   +7 more
wiley   +1 more source

Parkinson's Disease and Parkinsonism: Neuropathology [PDF]

Cold Spring Harbor Perspectives in Medicine, 2012
Parkinsonism, the clinical term for a disorder with prominent bradykinesia and variable associated extrapyramidal signs and symptoms, is accompanied by degeneration of the nigrostriatal dopaminergic system, with neuronal loss and reactive gliosis in the substantia nigra found at autopsy.
openaire   +3 more sources

Dysphagia and Mortality Risk in Individuals With Primary Progressive Apraxia of Speech

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Individuals with primary progressive apraxia of speech (PPAOS) often develop parkinsonism and dysphagia. To evaluate the clinical correlates and impact of dysphagia in this population, we compared enrollment visit data between individuals with (n = 12) versus individuals without (n = 44) dysphagia symptoms.
Gabriela Meade, Nha Trang Thu Pham, Sarah M. Boland, Heather M. Clark, Joseph R. Duffy, Jennifer L. Whitwell, Hugo Botha, Keith A. Josephs, Rene L. Utianski   +8 more
wiley   +1 more source

Author response: Effects of orthostatic hypotension on cognition in Parkinson disease [PDF]

, 2017
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in persons with Parkinson's disease (PD) without dementia.
Canova, Alexander O., Centi, Justin, Cronin-Golomb, Alice, Freeman, Roy, Gibbons, Christopher H., Neargarder, Sandy   +5 more
core   +1 more source

A 14‐Year Study of Serum Glial Fibrillary Acidic Protein and Total Tau in Premanifest Huntington's

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT There is a pressing need for blood biomarkers that can identify Huntington's disease (HD) gene carriers' proximity to manifest disease. We previously examined serial serum neurofilament light (NfL) concentrations in 21 premanifest HD gene carriers and 14 controls over 14 years, finding that NfL demonstrates high prognostic value and distinct ...
Natalia E. Owen, Zanna J. Voysey, Jonathan A. Holbrook, Maura Malpetti, Clara Le Draoulec, Lennart R. B. Spindler, Anna O. G. Goodman, Alpar S. Lazar, Roger A. Barker   +8 more
wiley   +1 more source

Barriers to reporting non-motor symptoms to health-care providers in people with Parkinson's [PDF]

, 2019
Background: Non-motor symptoms (NMS) are common in Parkinson's disease (PD) and cause significant distress. A high rate of non-declaration of NMS by patients to healthcare providers (HCP) means that many NMS remain untreated. Current understanding of the
Brown, R. G., Chaudhuri, K. R., Hurt, C. S., Moss-Morris, R., Rixon, L., Samuel, M.   +5 more
core   +3 more sources

CNS Mitochondria‐Derived Vesicle in Blood: Potential Biomarkers for Brain Mitochondria Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mitochondrial dysfunction is a hallmark of neurodegenerative diseases like Alzheimer's (AD) and Parkinson's (PD). Our goal was to develop practical, noninvasive methods to assess mitochondrial status through the detection of mitochondria‐derived vesicles (MDVs).
Qi Liu, Wentao Chen, Yahong Wu, Zhen Guo, Jun Chen, Chen Tian, Pan Wang, Shaopeng Zeng, Bin Xu, Jing Duan, Shilong Han, Xiao Xiong, Jing Zhang   +12 more
wiley   +1 more source

Laserlight visual cueing device for freezing of gait in Parkinson's disease: a case study of the biomechanics involved [PDF]

, 2015
Background: Freezing of gait (FOG) is a serious gait disorder affecting up to two-thirds of people with Parkinson's disease (PD). Cueing has been explored as a method of generating motor execution using visual transverse lines on the floor.
B. Evans, C. J. Egerton, Fahn S, Gerstmann J, J. D. Richards, J. Janssen, P. McCandless, Richards J   +7 more
core   +1 more source

Validity and Reliability of Clinical and Patient‐Reported Outcomes in Multisystem Proteinopathy 1

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Valosin‐containing protein (VCP)‐associated multisystem proteinopathy 1 (MSP1) is caused by variants in the VCP gene. MSP1 results in various phenotypes including progressive myopathy, Paget's disease of bone, frontotemporal dementia, amyotrophic lateral sclerosis, and parkinsonism, among others.
Lindsay N. Alfano, Megan A. Iammarino, Natalie F. Reash, Linda P. Lowes, Lindsay Pietruszewski, Kathleen Adderley, Lauren Humphrey, Audrey B. Knight, Christopher L. Steiner, Melissa A. Smith, Zarife Sahenk, Anne M. Connolly, Momen Almomen, Eleonora S. D'Ambrosio, Nathan Peck, Allison Peck   +15 more
wiley   +1 more source