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https://www.readbyqxmd.com/read/28718500/neurofilament-light-as-an-immune-target-for-pathogenic-antibodies
#1
Fabiola Puentes, Baukje J van der Star, Stephanie D Boomkamp, Markus Kipp, Louis Boon, Isabel Bosca, Joel Raffel, Sharmilee Gnanapavan, Paul van der Valk, Jodie Stephenson, Susan C Barnett, David Baker, Sandra Amor
Antibodies to neuronal antigens are associated with many neurological diseases including paraneoplastic neurological disorders, epilepsy, amyotrophic lateral sclerosis and multiple sclerosis. Immunisation with neuronal antigens such as neurofilament light NF-L, a neuronal intermediate filament in axons, has been shown to induce neurological disease and spasticity in mice. Also, while antibodies to NF-L are widely used as surrogate biomarkers of axonal injury in amyotrophic lateral sclerosis and multiple sclerosis, it remains to be elucidated if antibodies to NF-L contribute to neurodegeneration and neurological disease...
July 17, 2017: Immunology
https://www.readbyqxmd.com/read/28718354/mercury-induced-motor-and-sensory-neurotoxicity-systematic-review-of-workers-currently-exposed-to-mercury-vapor
#2
Cheryl A Fields, Jonathan Borak, Elan D Louis
The neurotoxicity of elemental mercury (Hg(0)) is well-recognized, but it is uncertain whether and for how long neurotoxicity persists; among studies that evaluated previously exposed workers, only one examined workers during and also years after exposure ceased. The aim of this review is to document the type, frequency, and dose-relatedness of objective neurological effects in currently exposed mercury workers and thereby provide first approximations of the effects one would have expected in previously exposed workers evaluated during exposure...
July 18, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28718302/cardiovascular-risk-factors-among-patients-with-vestibular-neuritis
#3
Yahav Oron, Shay Shemesh, Sagit Shushan, Udi Cinamon, Abraham Goldfarb, Ron Dabby, Sharon Ovnat Tamir
OBJECTIVE: To investigate the correlation between cardiovascular risk factors (CVRFs) and vestibular neuritis (VN) in hospitalized adult patients. METHODS: A cross-sectional retrospective study was conducted in a tertiary hospital setting. The medical records of patients (aged over 18 years old) who were hospitalized between the years 2005 and 2014 with the diagnosis of VN were retrieved. Inclusion criteria were: (1) acute vertigo lasting for at least 24 hours, (2) absence of auditory complaints, (3) horizontal unidirectional nystagmus present during physical examination, and (4) absence of neurological symptoms or signs...
August 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28718234/paediatrics-brain-imaging-in-epilepsy-common-presenting-symptoms-and-spectrum-of-abnormalities-detected-on-mri
#4
Azmat Ali, Faiza Akram, Ghayyur Khan, Shaukat Hussain
BACKGROUND: Epilepsy, a common neurological disorder can present at any age and has a number of aetiologies with underlying brain disease being the most common aetiology. Brain imaging becomes important and mandatory in the work up for epilepsy in localization and lateralization of the seizure focus. METHODS: This cross-sectional study was conducted in the department of Radiology Ayub Medical Teaching Institution Abbottabad from 1st March 2015 to 31st March 2016...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717781/spinal-cord-infarction-mimicking-ischemic-heart-disease
#5
Dae Won Lee, Yoon Hee Choi
Spinal cord infarction is a rare condition and is easily misdiagnosed owing to its initial non-specific manifestation. We report a case of a 77-year-old man who presented with chest pain and upper back pain initially, and was misdiagnosed with a myocardial infarction. Four hours after admission, he complained of numbness in his entire left leg below the knee, with rapid deterioration of neurological symptoms. After 9 hours, loss of sensation progressed up to the T4 dermatome, strength of both lower extremities deteriorated to grade 0, and decrease in anal tone and deep tendon reflex was observed...
June 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28717604/central-vestibular-syndrome-in-a-red-fox-vulpes-vulpes-with-presumptive-right-caudal-cerebral-artery-ischemic-infarct-and-prevalent-midbrain-involvement
#6
Mario Ricciardi, Floriana Gernone, Antonio De Simone, Pasquale Giannuzzi
A wild young male red fox (Vulpes vulpes) was found in the mountainous hinterland of Rome (Italy) with a heavily depressed mental status and unresponsive to the surrounding environment. Neurological examination revealed depression, left circling, right head tilt, ventromedial positional strabismus and decreased postural reactions on the left side. Neurological abnormalities were suggestive of central vestibular syndrome. Two consecutive MRIs performed with 30 days interval were compatible with lacunar ischemic infarct in the territory of right caudal cerebral artery and its collateral branches...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28717417/analysis-of-extracellular-rna-in-cerebrospinal-fluid
#7
Julie A Saugstad, Theresa A Lusardi, Kendall R Van Keuren-Jensen, Jay I Phillips, Babett Lind, Christina A Harrington, Trevor J McFarland, Amanda L Courtright, Rebecca A Reiman, Ashish S Yeri, M Yashar S Kalani, P David Adelson, Jorge Arango, John P Nolan, Erika Duggan, Karen Messer, Johnny C Akers, Douglas R Galasko, Joseph F Quinn, Bob S Carter, Fred H Hochberg
We examined the extracellular vesicle (EV) and RNA composition of pooled normal cerebrospinal fluid (CSF) samples and CSF from five major neurological disorders: Alzheimer's disease (AD), Parkinson's disease (PD), low-grade glioma (LGG), glioblastoma multiforme (GBM), and subarachnoid haemorrhage (SAH), representing neurodegenerative disease, cancer, and severe acute brain injury. We evaluated: (I) size and quantity of EVs by nanoparticle tracking analysis (NTA) and vesicle flow cytometry (VFC), (II) RNA yield and purity using four RNA isolation kits, (III) replication of RNA yields within and between laboratories, and (IV) composition of total and EV RNAs by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and RNA sequencing (RNASeq)...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28717094/limbic-encephalitis-associated-with-human-herpesvirus-7-hhv-7-in-an-immunocompetent-adult-the-first-reported-case-in-japan
#8
Yoko Aburakawa, Takayuki Katayama, Tsukasa Saito, Jun Sawada, Tatsuo Suzutani, Hitoshi Aizawa, Naoyuki Hasebe
A 35-year-old male who had not previously suffered any major illnesses was admitted to our hospital because of general fatigue, fever, headache, vomiting, consciousness disturbance, and seizures. A neurological examination showed that he was in a semi-comatose state and exhibited neck stiffness. Brain magnetic resonance imaging detected high-intensity areas in the bilateral hippocampi and periventricular white matter. A cerebrospinal fluid examination revealed mononuclear pleocytosis, an elevated protein level, and positivity for human herpesvirus-7 (HHV-7) DNA...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28716764/influence-of-time-and-direction-information-on-video-head-impulse-gains
#9
Oğuz Yılmaz, Ersoy Öz, Serkan Kurt, Öyküm Esra Aşkın, Elifnur Taşdemir, Berna Özge Mutlu, Ahmet Keleş, Raşit Cevizci
OBJECTIVE: The objective of this study was to establish which factor leads to a higher vestibulo-ocular reflex (VOR) gain: the timing of the movement or the direction of the movement. For this purpose, healthy volunteers were examined under three conditions: (1) when they were informed about the timing of the head movement; (2) when they were informed about the direction of the head movement; and (3) when they knew both the timing and the direction of the head movement. MATERIALS AND METHODS: This study included data from 19 participants between the ages of 20 and 23 years with no neurological or vestibular ailments...
July 17, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28716636/a-simplified-clinical-prediction-rule-for-prognosticating-independent-walking-after-spinal-cord-injury-a-prospective-study-from-a-canadian-multicenter-spinal-cord-injury-registry
#10
Katharine E Hicks, Yichen Zhao, Nader Fallah, Carly Rivers, Vanessa Noonan, Tova Plashkes, Eugene K Wai, Darren M Roffey, Eve Tsai, Jerome Paquet, Najmedden Attabib, Travis Marion, Henry Ahn, Philippe Phan
BACKGROUND: Context: Traumatic spinal cord injury (SCI) is a debilitating condition with limited treatment options for neurological or functional recovery. The ability to predict the prognosis of walking post-injury with emerging prediction models could aid in rehabilitation strategies and reintegration into the community. PURPOSE: To re-validate an existing clinical prediction model for independent ambulation (van Middendorp et al. 2011) utilising acute and long-term post-injury follow-up data, and to investigate the accuracy of a simplified model using prospectively collected data from a Canadian multicenter SCI database, the Rick Hansen Spinal Cord Injury Registry (RHSCIR)...
July 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28716552/is-heterotopic-ossification-getting-nervous-the-role-of-the-peripheral-nervous-system-in-heterotopic-ossification
#11
Eleanor L Davis, Alan R Davis, Zbigniew Gugala, Elizabeth A Olmsted-Davis
Heterotopic ossification (HO), or de novo bone formation in soft tissue, is often observed following traumatic injury. Recent studies suggest that peripheral nerves may play a key functional role in this process. The results supporting a neurological basis for HO are examined in this article. Evidence supports the fact that BMPs released from bone matrix possess the capacity to induce HO. However, the process cannot be recapitulated using recombinant proteins without extremely high doses suggesting other components are required for this process...
July 14, 2017: Bone
https://www.readbyqxmd.com/read/28716324/identifying-patients-with-high-risk-neurogenic-bladder-beyond-detrusor-leak-point-pressure
#12
REVIEW
Elizabeth V Dray, Anne P Cameron
More than 12,000 spinal cord injuries occur annually in the United States; more than 80% of these individuals will experience urinary tract dysfunction. Despite the clinical demand, there is a paucity of guidelines for the care of these patients. Although most urologists are familiar with dangerous urodynamic parameters and the benefits of clean intermittent catheterization, these patients face a myriad of risks that may go unrecognized. In this article, the authors discuss the impact of specific neurologic diseases on the urinary tract, examine the risks inherent to each, and determine strategies for screening, prevention, and treatment of these complications...
August 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28716288/uric-acid-levels-correlate-with-the-severity-of-diabetic-sensorimotor-polyneuropathy
#13
Alon Abraham, Ari Breiner, Carolina Barnett, Hans D Katzberg, Leif E Lovblom, Bruce A Perkins, Vera Bril
INTRODUCTION: Diabetic sensorimotor polyneuropathy (DSP) is the most frequent complication in patients with diabetes mellitus (DM), and is associated with age, DM duration, and HbA1c levels. In addition, higher uric acid (UA) levels are reported in patients with DSP. OBJECTIVES: To explore whether UA levels correlate with DSP severity. METHODS: We extracted the demographic data, clinical history, neurological and electrophysiological examinations and laboratory findings of 115 patients diagnosed with DSP from January 2012 to December 2015...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28716274/head-ct-findings-at-a-public-hospital-in-rural-haiti
#14
Yannis K Valtis, Maggie F Cochran, Louine Martineau, Bregenet Lamour, Jeffrey B Mendel, Aaron L Berkowitz
BACKGROUND: Neuroimaging is often unavailable in low-income countries, creating challenges for precise diagnosis of neurologic disease in individual patients, and impeding acquisition of precise neuroepidemiologic data for program and policy development. METHODS: We analyzed reports from 3614 head CTs performed between July 2013 and January 2016 at Hôpital Universitaire de Mirebalais, a public academic hospital in rural Haiti, extracting patients' age, study indication, and radiologic findings...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28715642/reduced-brain-volume-and-impaired-memory-in-betaine-homocysteine-s-methyltransferase-knockout-mice
#15
Emily A K Prieur, Eneda Pjetri, Steven H Zeisel, Nafisa M Jadavji
Using a mouse model, this study examined the impact of lack of betaine homocysteine S-methyltransferase (BHMT) on neurological function. Bhmt-/- mice maintained on a control diet had elevated concentrations of homocysteine, reduced total brain MRI volume, as well as impaired reference and short- term memories. The results of this study indicate that the absence of BHMT may play a role in neurological function.
July 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28715518/early-accurate-diagnosis-and-early-intervention-in-cerebral-palsy-advances-in-diagnosis-and-treatment
#16
Iona Novak, Cathy Morgan, Lars Adde, James Blackman, Roslyn N Boyd, Janice Brunstrom-Hernandez, Giovanni Cioni, Diane Damiano, Johanna Darrah, Ann-Christin Eliasson, Linda S de Vries, Christa Einspieler, Michael Fahey, Darcy Fehlings, Donna M Ferriero, Linda Fetters, Simona Fiori, Hans Forssberg, Andrew M Gordon, Susan Greaves, Andrea Guzzetta, Mijna Hadders-Algra, Regina Harbourne, Angelina Kakooza-Mwesige, Petra Karlsson, Lena Krumlinde-Sundholm, Beatrice Latal, Alison Loughran-Fowlds, Nathalie Maitre, Sarah McIntyre, Garey Noritz, Lindsay Pennington, Domenico M Romeo, Roberta Shepherd, Alicia J Spittle, Marelle Thornton, Jane Valentine, Karen Walker, Robert White, Nadia Badawi
Importance: Cerebral palsy describes the most common physical disability in childhood and occurs in 1 in 500 live births. Historically, the diagnosis has been made between age 12 and 24 months but now can be made before 6 months' corrected age. Objectives: To systematically review best available evidence for early, accurate diagnosis of cerebral palsy and to summarize best available evidence about cerebral palsy-specific early intervention that should follow early diagnosis to optimize neuroplasticity and function...
July 17, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28714784/the-management-of-paediatric-neurogenic-bladder-an-approach-in-a-resource-poor-setting
#17
Patrick Opoku Manu Maison, John Lazarus
BACKGROUND: If untreated, paediatric neurogenic bladder can cause renal failure and urinary incontinence. It is usually caused by neural tube defects such as myelomeningocele. Children with a neurogenic bladder should be monitored from birth and management should aim to preserve renal function and achieve social continence. This article outlines the management options appropriate for these children in resource-poor settings. ASSESSMENT: In most low- and middle-income countries, a general lack of awareness of the neurological effects on the urinary tract results in late presentation, usually with urological complications even when spina bifida is diagnosed early...
July 17, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28714199/the-effect-of-dopaminergic-medication-on-conflict-adaptation-in-parkinson-s-disease
#18
Marit F L Ruitenberg, Elger L Abrahamse, Patrick Santens, Wim Notebaert
Parkinson's disease (PD) is a neurological disorder associated primarily with motor symptoms such as tremor, slowness of movement, and difficulties with gait and balance. Most patients take dopaminergic medication to improve their motor functions. Previous studies reported indications that such medication can impair higher cognitive functions (cf. dopamine overdose hypothesis). In the present study, we examined the effect of medication status on conflict adaptation. PD patients performed a Stroop task in which we manipulated the proportion of congruent and incongruent items, thereby allowing us to explore conflict adaptation...
July 16, 2017: Journal of Neuropsychology
https://www.readbyqxmd.com/read/28713835/rapid-detection-of-the-mt3243a%C3%A2-%C3%A2-g-mutation-using-urine-sediment-in-elderly-chinese-type-2-diabetic-patients
#19
Yinan Zhang, Xiujuan Du, Xinqian Geng, Chen Chu, Huijuan Lu, Yixie Shen, Ruihua Chen, Pingyan Fang, Yanmei Feng, Xiaojie Zhang, Yan Chen, Yanping Zhou, Congrong Wang, Weiping Jia
OBJECTIVE: In this study, we aimed to identify mt3243A > G mutation carriers in a group of Chinese elderly type 2 diabetic patients by a rapid and noninvasive diagnostic system. METHODS: DNA was extracted from blood, saliva, and urine sediment samples. The mutation screening and quantitation of heteroplasmy were performed by high-resolution melting (HRM) curve and pyrosequencing, respectively. Patients with mt3243A > G mutation underwent a detailed audiometric, ophthalmologic, neurological, and cardiac examination...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28713667/absent-congenital-cervical-pedicle-nearly-misdiagnosed-as-a-facet-dislocation-a-case-report
#20
Scott Safir, Jonathan Rasouli, Jeremy Steinberger, Branko Skovrlj, Amish Doshi, Konstantinos Margetis, Saadi Ghatan
BACKGROUND: Cervical spinal injury encompasses up to 1.5% of all pediatric injuries. Children, and more specifically infants, are a difficult subset of patients to obtain neurological exam in the setting of trauma, thus necessitating the use of cervical X-rays, CT scans, and MRI imaging. CASE DESCRIPTION: A healthy, 15-month-old boy had an unwitnessed fall down a flight of stairs and received a CT scan of the head and cervical spine in the emergency department due to cephalohematoma and mechanism of injury...
September 2017: Interdisciplinary Neurosurgery: Advanced Techniques and Case Management
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