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https://www.readbyqxmd.com/read/28100729/toward-quantitative-mri-analysis-a-smart-approach-to-characterize-neonatal-white-matter-injury
#1
Gregory A Lodygensky, Deanne K Thompson
No abstract text is available yet for this article.
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28100728/direct-cortical-stimulation-of-human-posteromedial-cortex
#2
Brett L Foster, Josef Parvizi
BACKGROUND: The posteromedial cortex (PMC) is a collective term for an anatomically heterogeneous area of the brain constituting a core node of the human default mode network (DMN), which is engaged during internally focused subjective cognition such as autobiographical memory. METHODS: We explored the effects of causal perturbations of PMC with direct electric brain stimulation (EBS) during presurgical epilepsy monitoring with intracranial EEG electrodes. RESULTS: Data were collected from 885 stimulations in 25 patients implanted with intracranial electrodes across the PMC...
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28100727/quantitative-assessment-of-white-matter-injury-in-preterm-neonates-association-with-outcomes
#3
Ting Guo, Emma G Duerden, Elysia Adams, Vann Chau, Helen M Branson, M Mallar Chakravarty, Kenneth J Poskitt, Anne Synnes, Ruth E Grunau, Steven P Miller
OBJECTIVE: To quantitatively assess white matter injury (WMI) volume and location in very preterm neonates, and to examine the association of lesion volume and location with 18-month neurodevelopmental outcomes. METHODS: Volume and location of WMI was quantified on MRI in 216 neonates (median gestational age 27.9 weeks) who had motor, cognitive, and language assessments at 18 months corrected age (CA). Neonates were scanned at 32.1 postmenstrual weeks (median) and 68 (31...
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28100726/decreased-intestinal-acetylcholinesterase-in-early-parkinson-disease-an-11c-donepezil-pet-study
#4
Tatyana D Fedorova, Louise B Seidelin, Karoline Knudsen, Anna C Schacht, Jacob Geday, Nicola Pavese, David J Brooks, Per Borghammer
OBJECTIVE: To investigate systemic levels of acetylcholinesterase in early Parkinson disease (PD) with (11)C-donepezil PET, a potential marker of parasympathetic innervation. METHODS: This was a cross-sectional study with 19 patients with early-stage PD (disease duration 1.5 ± 0.6 years) and 16 age-matched controls who had clinical assessments, olfaction tests, and (11)C-donepezil PET to measure acetylcholinesterase density in peripheral organs. RESULTS: The patients with PD showed significantly reduced (11)C-donepezil uptake in the small intestine (-14%, p = 0...
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28100725/genome-wide-association-study-identifies-mapt-locus-influencing-human-plasma-tau-levels
#5
Jason Chen, Jin-Tai Yu, Kevin Wojta, Hui-Fu Wang, Henrik Zetterberg, Kaj Blennow, Jennifer S Yokoyama, Michael W Weiner, Joel H Kramer, Howard Rosen, Bruce L Miller, Giovanni Coppola, Adam L Boxer
OBJECTIVE: To identify genetic loci associated with plasma tau concentrations in healthy elders and individuals with Alzheimer disease. METHODS: Four hundred sixty-three non-Hispanic white individuals exceeding quality control criteria were included from the Alzheimer's Disease Neuroimaging Initiative (ADNI-1) cohort. Association of plasma tau with genetic polymorphisms was performed with a linear regression model. Significant associations were validated in an independent replication cohort consisting of 431 healthy elders or individuals with mild cognitive impairment recruited from the University of California, San Francisco Memory and Aging Center...
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28100724/transient-smartphone-blindness-relevance-to-misdiagnosis-in-neurologic-practice
#6
Saraniya Sathiamoorthi, Dean M Wingerchuk
No abstract text is available yet for this article.
January 18, 2017: Neurology
https://www.readbyqxmd.com/read/28087828/tdp-43-pathology-and-memory-impairment-in-elders-without-pathologic-diagnoses-of-ad-or-ftld
#7
Sukriti Nag, Lei Yu, Robert S Wilson, Er-Yun Chen, David A Bennett, Julie A Schneider
OBJECTIVE: To investigate the association of TAR DNA-binding protein 43 (TDP-43) pathology with memory, other cognitive domains, and dementia in community-dwelling elders without pathologic diagnoses of Alzheimer disease (AD) or frontotemporal lobar degeneration (FTLD). METHODS: Of 1,058 autopsied participants, 343 (32.4%) did not have pathologic diagnoses of AD or FTLD. Diagnosis of dementia was based on clinical evaluation and cognitive performance tests, which were used to create summary measures of global cognition and of 5 cognitive domains...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087827/neuropsychological-outcome-following-frontal-lobectomy-for-pharmacoresistant-epilepsy-in-adults
#8
Robyn M Busch, Darlene P Floden, Lisa Ferguson, Shamseldeen Mahmoud, Audrina Mullane, Stephen Jones, Lara Jehi, William Bingaman, Imad M Najm
OBJECTIVE: This retrospective cohort study characterized cognitive and motor outcomes in a large sample of adults who underwent frontal lobe resections for treatment of pharmacoresistant epilepsy. METHODS: Ninety patients who underwent unilateral frontal lobe resection for epilepsy (42 language-dominant hemisphere/48 nondominant hemisphere) between 1989 and 2014 completed comprehensive preoperative and postoperative neuropsychological evaluations that included measures of verbal and nonverbal intellectual functioning, attention/working memory, processing speed, language, executive functioning, verbal and visual memory, and motor functioning...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087826/comparison-of-brain-mri-findings-with-language-and-motor-function-in-the-dystroglycanopathies
#9
Brianna N Brun, Shelley R H Mockler, Katie M Laubscher, Carrie M Stephan, Anne M Wallace, Julia A Collison, M Bridget Zimmerman, William B Dobyns, Katherine D Mathews
OBJECTIVE: To describe the spectrum of brain MRI findings in a cohort of individuals with dystroglycanopathies (DGs) and relate MRI results to function. METHODS: All available brain MRIs done for clinical indications on individuals enrolled in a DG natural history study (NCT00313677) were reviewed. Reports were reviewed when MRI was not available. MRIs were categorized as follows: (1) cortical, brainstem, and cerebellar malformations; (2) cortical and cerebellar malformations; or (3) normal...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087825/incidence-and-predictors-of-epilepsy-after-pediatric-arterial-ischemic-stroke
#10
Lori L Billinghurst, Lauren A Beslow, Nicholas S Abend, Michael Uohara, Laura Jastrzab, Daniel J Licht, Rebecca N Ichord
OBJECTIVE: To determine the cumulative incidence and clinical predictors of remote symptomatic seizures and epilepsy after pediatric arterial ischemic stroke (AIS). METHODS: We performed a retrospective analysis of 218 participants with neonatal AIS (NAIS), presumed perinatal AIS (PPAIS), and childhood AIS (CAIS) from a single-center prospective consecutive cohort enrolled from 2006 to 2014. Medical records were reviewed for timing, semiology, and treatment of acute symptomatic seizures, remote symptomatic seizures (RSS), and epilepsy...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087824/neuropathology-of-sudep-role-of-inflammation-blood-brain-barrier-impairment-and-hypoxia
#11
Zuzanna Michalak, Dima Obari, Matthew Ellis, Maria Thom, Sanjay M Sisodiya
OBJECTIVE: To seek a neuropathologic signature of sudden unexpected death in epilepsy (SUDEP) in a postmortem cohort by use of immunohistochemistry for specific markers of inflammation, gliosis, acute neuronal injury due to hypoxia, and blood-brain barrier (BBB) disruption, enabling the generation of hypotheses about potential mechanisms of death in SUDEP. METHODS: Using immunohistochemistry, we investigated the expression of 6 markers (CD163, human leukocyte antigen-antigen D related, glial fibrillary acid protein, hypoxia-inducible factor-1α [HIF-1α], immunoglobulin G, and albumin) in the hippocampus, amygdala, and medulla in 58 postmortem cases: 28 SUDEP (definite and probable), 12 epilepsy controls, and 18 nonepileptic sudden death controls...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087823/prognosis-of-carotid-dissecting-aneurysms-results-from-cadiss-and-a-systematic-review
#12
Susanna C Larsson, Alice King, Jeremy Madigan, Christopher Levi, John W Norris, Hugh S Markus
OBJECTIVE: To determine the natural history of dissecting aneurysm (DA) and whether DA is associated with an increased recurrent stroke risk and whether type of antithrombotic drugs (antiplatelets vs anticoagulants) modifies the persistence or development of DA. METHODS: We included 264 patients with extracranial cervical artery dissection (CAD) from the Cervical Artery Dissection in Stroke Study (CADISS), a multicenter prospective study that compared antiplatelet with anticoagulation therapy...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087822/amygdala-and-hippocampus-are-symptomatogenic-zones-for-central-apneic-seizures
#13
Nuria Lacuey, Bilal Zonjy, Luisa Londono, Samden D Lhatoo
OBJECTIVE: To identify limbic sites of respiratory control in the human brain, and by extension, the symptomatogenic zone for central apnea. METHODS: We used direct stimulation of anatomically, precisely placed stereotactic EEG electrodes to analyze breathing responses. We prospectively studied 3 patients who were explored with stereotactically implanted depth electrodes. The amygdala and hippocampus, as well as extralimbic sites (orbitofrontal, temporal tip, and temporal neocortex), were investigated...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087821/selection-of-first-line-therapy-in-multiple-sclerosis-using-risk-benefit-decision-analysis
#14
David Bargiela, Matthew T Bianchi, M Brandon Westover, Lori B Chibnik, Brian C Healy, Philip L De Jager, Zongqi Xia
OBJECTIVE: To integrate long-term measures of disease-modifying drug efficacy and risk to guide selection of first-line treatment of multiple sclerosis. METHODS: We created a Markov decision model to evaluate disability worsening and progressive multifocal leukoencephalopathy (PML) risk in patients receiving natalizumab (NTZ), fingolimod (FGL), or glatiramer acetate (GA) over 30 years. Leveraging publicly available data, we integrated treatment utility, disability worsening, and risk of PML into quality-adjusted life-years (QALYs)...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28077496/left-ventricular-wall-motion-abnormalities-what-can-they-tell-us-about-stroke-recurrence
#15
Raf Brouns
No abstract text is available yet for this article.
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28077495/left-ventricular-wall-motion-abnormalities-are-associated-with-stroke-recurrence
#16
Jeong-Yoon Choi, Jaehyung Cha, Jin-Man Jung, Woo-Keun Seo, Kyungmi Oh, Kyung-Hee Cho, Sungwook Yu
OBJECTIVE: To investigate the role of left ventricular wall motion abnormalities (LVWMA), unrelated to high-risk cardioembolic conditions, in stroke recurrence. METHODS: This study included consecutive acute ischemic stroke patients. Transthoracic echocardiography was performed as a routine evaluation for stroke patients. The outcomes were the time to recurrent any stroke and ischemic stroke. RESULTS: Among 4,316 acute ischemic stroke patients, 430 had LVWMA without high-risk cardioembolic sources...
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28077494/practice-guideline-summary-use-of-fmri-in-the-presurgical-evaluation-of-patients-with-epilepsy-report-of-the-guideline-development-dissemination-and-implementation-subcommittee-of-the-american-academy-of-neurology
#17
Jerzy P Szaflarski, David Gloss, Jeffrey R Binder, William D Gaillard, Alexandra J Golby, Scott K Holland, Jeffrey Ojemann, David C Spencer, Sara J Swanson, Jacqueline A French, William H Theodore
OBJECTIVE: To assess the diagnostic accuracy and prognostic value of functional MRI (fMRI) in determining lateralization and predicting postsurgical language and memory outcomes. METHODS: An 11-member panel evaluated and rated available evidence according to the 2004 American Academy of Neurology process. At least 2 panelists reviewed the full text of 172 articles and selected 37 for data extraction. Case reports, reports with <15 cases, meta-analyses, and editorials were excluded...
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28077493/disease-modifying-therapies-modulate-retinal-atrophy-in-multiple-sclerosis-a-retrospective-study
#18
Julia Button, Omar Al-Louzi, Andrew Lang, Pavan Bhargava, Scott D Newsome, Teresa Frohman, Laura J Balcer, Elliot M Frohman, Jerry Prince, Peter A Calabresi, Shiv Saidha
OBJECTIVE: To retrospectively investigate whether disease-modifying therapies (DMTs) exert differential effects on rates of retinal atrophy in relapsing-remitting multiple sclerosis (RRMS), as assessed using optical coherence tomography (OCT). METHODS: A total of 402 patients with RRMS followed at the Johns Hopkins MS Center who underwent Cirrus-HD OCT were assessed for eligibility. Inclusion criteria included at least 1 year of OCT follow-up and adherence to a single DMT during the period of follow-up...
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28077492/dystonia-treatment-patterns-of-medication-use-in-an-international-cohort
#19
Sarah Pirio Richardson, Ashley R Wegele, Betty Skipper, Amanda Deligtisch, H A Jinnah
OBJECTIVE: To determine the frequency of medication use in patients with dystonia enrolled in an international biorepository study. METHODS: In a cross-sectional analysis, we included 2,026 participants enrolled at 37 sites in the United States, Canada, Europe, and Australia through Project 1 of the Dystonia Coalition, an international biorepository study. The primary aim was to assess the frequency of medication classes recommended for treating patients with dystonia, and the secondary aim was to compare characteristics (disease type, age, sex, duration of disease, comorbid conditions, severity)...
January 11, 2017: Neurology
https://www.readbyqxmd.com/read/28077491/sphingosine-1-phosphate-lyase-deficiency-causes-charcot-marie-tooth-neuropathy
#20
Derek Atkinson, Jelena Nikodinovic Glumac, Bob Asselbergh, Biljana Ermanoska, David Blocquel, Regula Steiner, Alejandro Estrada-Cuzcano, Kristien Peeters, Tinne Ooms, Els De Vriendt, Xiang-Lei Yang, Thorsten Hornemann, Vedrana Milic Rasic, Albena Jordanova
OBJECTIVE: To identify the unknown genetic cause in a nuclear family with an axonal form of peripheral neuropathy and atypical disease course. METHODS: Detailed neurologic, electrophysiologic, and neuropathologic examinations of the patients were performed. Whole exome sequencing of both affected individuals was done. The effect of the identified sequence variations was investigated at cDNA and protein level in patient-derived lymphoblasts. The plasma sphingoid base profile was analyzed...
January 11, 2017: Neurology
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