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https://www.readbyqxmd.com/read/28206829/validity-of-low-contrast-letter-acuity-as-a-visual-performance-outcome-measure-for-multiple-sclerosis
#1
Laura J Balcer, Jenelle Raynowska, Rachel Nolan, Steven L Galetta, Raju Kapoor, Ralph Benedict, Glenn Phillips, Nicholas LaRocca, Lynn Hudson, Richard Rudick
Low-contrast letter acuity (LCLA) has emerged as the leading outcome measure to assess visual disability in multiple sclerosis (MS) research. As visual dysfunction is one of the most common manifestations of MS, sensitive visual outcome measures are important in examining the effect of treatment. Low-contrast acuity captures visual loss not seen in high-contrast visual acuity (HCVA) measurements. These issues are addressed by the MS Outcome Assessments Consortium (MSOAC), including representatives from advocacy organizations, Food and Drug Administration (FDA), European Medicines Agency (EMA), National Institute of Neurological Disorders and Stroke (NINDS), academic institutions, and industry partners along with persons living with MS...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28203460/the-prevalence-of-anti-aquaporin-4-antibody-in-patients-with-idiopathic-inflammatory-demyelinating-diseases-presented-to-a-tertiary-hospital-in-malaysia-presentation-and-prognosis
#2
S Abdullah, W F Wong, C T Tan
Background. There have been inconsistent reports on the prevalence and pathogenicity of anti-Aquaporin 4 (AQP4) in patients presented with idiopathic inflammatory demyelinating diseases (IIDDs). Objective. To estimate the prevalence of anti-AQP4 antibody in patients with IIDDs presented to University Malaya Medical Centre in terms of patients' clinical and radiological presentations and prognoses. Methods. Retrospective data review of IIDDs patients presented from 2005 to 2015. Patients were classified into classical multiple sclerosis (CMS), opticospinal (OS) presentation, optic neuritis (ON), transverse myelitis (TM), brainstem syndrome (BS), and tumefactive MS...
2017: Multiple Sclerosis International
https://www.readbyqxmd.com/read/28199381/impact-of-the-anti-aquaporin-4-autoantibody-on-inner-retinal-structure-function-and-structure-function-associations-in-japanese-patients-with-optic-neuritis
#3
Yoshiko Matsumoto, Sotaro Mori, Kaori Ueda, Takuji Kurimoto, Akiyasu Kanamori, Yuko Yamada, Ichiro Nakashima, Makoto Nakamura
PURPOSE: An autoantibody against aquaporin-4 (AQP4 Ab) is highly specific for neuromyelitis optica spectrum disorder and plays a pathogenic role in this disease. The purpose of this study was to investigate the impact of AQP4 Ab on inner retinal structure, function, and the structure-function relationships in eyes with optic neuritis. METHODS: Thirty five eyes from 25 cases who had received visual function tests and RTVue optical coherence tomography (OCT) measurement at least six months after the latest episode of optic neuritis were enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28197299/sirtuins-expression-and-their-role-in-retinal-diseases
#4
REVIEW
Sankarathi Balaiya, Khaled K Abu-Amero, Altaf A Kondkar, Kakarla V Chalam
Sirtuins have received considerable attention since the discovery that silent information regulator 2 (Sir2) extends the lifespan of yeast. Sir2, a nicotinamide adenine dinucleotide- (NAD-) dependent histone deacetylase, serves as both a transcriptional effector and energy sensor. Oxidative stress and apoptosis are implicated in the pathogenesis of neurodegenerative eye diseases. Sirtuins confer protection against oxidative stress and retinal degeneration. In mammals, the sirtuin (SIRT) family consists of seven proteins (SIRT1-SIRT7)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28193690/lingo-1-regulates-oligodendrocyte-differentiation-through-the-cytoplasmic-gelsolin-signaling-pathway
#5
Zhaohui Shao, Xinhua Lee, Guanrong Huang, Guoqing Sheng, Christopher E Henderson, Daniel Louvard, Jiho Sohn, Blake Pepinsky, Sha Mi
Differentiation and maturation of oligodendrocyte progenitor cells (OPCs) involve the assembly and disassembly of actin microfilaments. How actin dynamics is regulated during this process remains poorly understood. Leucine rich repeat and Immunoglobulin-like domain-containing Nogo receptor interacting protein 1(LINGO-1) is a negative regulator of OPC differentiation. We discovered that anti-LINGO-1 antibody promoted OPC differentiation was accompanied by upregulation of cytoplasmic gelsolin (cGSN), an abundant actin-severing protein involved in the depolymerization of actin filaments...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28193472/we-cannot-see-what-she-cannot-ignore
#6
Francesco Pellegrini, Emanuela Interlandi, Carlos Pavesio, Henry A Ferreyra
A 32-year-old woman presented with the acute onset of a small scotoma in the right visual field. She was initially thought to have optic neuritis, but brain magnetic resonance imaging was normal. A review of her symptoms and medications disclosed recent use of oral contraceptives. Near infrared imaging was the only objective abnormality, consistent with her Amsler grid changes, leading to the diagnosis of acute macular neuroretinopathy.
February 10, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28192539/optical-coherence-tomography-segmentation-analysis-in-relapsing-remitting-versus-progressive-multiple-sclerosis
#7
Raed Behbehani, Abdullah Abu Al-Hassan, Ali Al-Salahat, Devarajan Sriraman, J D Oakley, Raed Alroughani
INTRODUCTION: Optical coherence tomography (OCT) with retinal segmentation analysis is a valuable tool in assessing axonal loss and neuro-degeneration in multiple sclerosis (MS) by in-vivo imaging, delineation and quantification of retinal layers. There is evidence of deep retinal involvement in MS beyond the inner retinal layers. The ultra-structural retinal changes in MS in different MS phenotypes can reflect differences in the pathophysiologic mechanisms. There is limited data on the pattern of deeper retinal layer involvement in progressive MS (PMS) versus relapsing remitting MS (RRMS)...
2017: PloS One
https://www.readbyqxmd.com/read/28192497/optical-coherence-tomography-angiography-in-eyes-with-good-visual-acuity-recovery-after-treatment-for-optic-neuritis
#8
Tomoaki Higashiyama, Yasuhiro Nishida, Masahito Ohji
OBJECTIVE: To evaluate the retinal perfusion using optical coherence tomography (OCT) angiography in eyes with good visual acuity recovery after treatment for optic neuritis (ON). METHODS: Seven eyes of seven patients with good visual acuity recovery after treatment for monocular ON and seven eyes of each fellow eye used as controls were studied. Retinal perfusion around the disc and at the macula was evaluated using OCT angiography. The retinal nerve fiber layer thickness was measured around the disc...
2017: PloS One
https://www.readbyqxmd.com/read/28191358/retinitis-pigmentosa-and-bilateral-idiopathic-demyelinating-optic-neuritis-in-a-6-year-old-boy-with-ofd1-gene-mutation
#9
Xun Wang, Cong Zheng, Wen Liu, Hui Yang
To identify the cause of a sudden binocular vision decrease in patients with retinitis pigmentosa and bilateral idiopathic demyelinating optic neuritis is difficult, but early diagnosis and treatment significantly improve the prognosis. Here, we report a 6-year-old boy with a progressive binocular vision decrease in 38 days. The patient had a history of night blindness, a mottled retina without pigmentation, extinguished electroretinographic response, tritanopia, and an absent ellipsoid zone outside the macula fovea by optical coherence tomography in both eyes...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28187977/retinal-and-optic-nerve-degeneration-in-patients-with-multiple-sclerosis-followed-up-for-5-years
#10
Elena Garcia-Martin, Jose R Ara, Jesus Martin, Carmen Almarcegui, Isabel Dolz, Elisa Vilades, Laura Gil-Arribas, Francisco J Fernandez, Vicente Polo, Jose M Larrosa, Luis E Pablo, Maria Satue
PURPOSE: To quantify retinal nerve fiber layer (RNFL) changes in patients with multiple sclerosis (MS) and healthy controls with a 5-year follow-up and to analyze correlations between disability progression and RNFL degeneration. DESIGN: Observational and longitudinal study. PARTICIPANTS: One hundred patients with relapsing-remitting MS and 50 healthy controls. METHODS: All participants underwent a complete ophthalmic and electrophysiologic exploration and were re-evaluated annually for 5 years...
February 7, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28182175/diverse-clinical-signs-of-ocular-involvement-in-cat-scratch-disease
#11
Merih Oray, Sumru Önal, Aylin Koç Akbay, İlknur Tuğal Tutkun
OBJECTIVES: To describe ocular manifestations, diagnosis, and treatment of cat scratch disease. MATERIALS AND METHODS: Clinical records of patients with ocular cat scratch disease were reviewed. RESULTS: Thirteen eyes of 10 patients (7 female, 3 male) with a mean age of 26.9±18.5 years were included. Nine patients had a history of cat contact and had systemic symptoms associated with cat scratch disease 2-90 days prior to the ocular symptoms...
January 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28180195/evaluation-of-the-optic-nerve-using-strain-and-shear-wave-elastography-in-patients-with-multiple-sclerosis-and-healthy-subjects
#12
Mikail İnal, Sinan Tan, Erhan M Yumusak, Mehmet Hamdi Şahan, Murat Alpua, Kemal Örnek
AIMS: Our aim was to evaluate the elasticity features of the optic nerve using strain (SE) and shear wave elastography (SWE) in multiple sclerosis (MS) patients in comparison with healthy subjects. MATERIAL AND METHODS: One hundred and seven optic nerves from 54 MS patients and 118 optic nerves from 59 healthy subjects were examined prospectively by SE and SWE. Optic nerves were divided into three types in accordance to the elasticity designs, as follows: type 1 predominantly blue (hardest tissue); type 2 predominantly blue/green (hard tissue); and type 3 predominantly green (intermediate tissue)...
January 31, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28156036/assessing-recording-delays-in-general-practice-records-to-inform-near-real-time-vaccine-safety-surveillance-using-the-clinical-practice-research-datalink-cprd
#13
Andreia Leite, Nick J Andrews, Sara L Thomas
PURPOSE: Near real-time vaccine safety surveillance (NRTVSS) is an option for post-licensure vaccine safety assessment. NRTVSS requires timely recording of outcomes in the database used. Our main objective was to examine recording delays in the Clinical Practice Research Datalink (CPRD) for outcomes of interest for vaccine safety to inform the feasibility of NRTVSS using these data. We also evaluated completeness of recording and further assessed reporting delays for hospitalized events in CPRD...
February 3, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28143630/optic-neuritis-in-guillain-barre-syndrome
#14
Anita M Dayal, Kurt Kimpinski, J Alexander Fraser
No abstract text is available yet for this article.
February 1, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28139754/intranasal-delivery-of-a-novel-amnion-cell-secretome-prevents-neuronal-damage-and-preserves-function-in-a-mouse-multiple-sclerosis-model
#15
Reas S Khan, Kimberly Dine, Bailey Bauman, Michael Lorentsen, Lisa Lin, Helayna Brown, Leah R Hanson, Aleta L Svitak, Howard Wessel, Larry Brown, Kenneth S Shindler
The ability of a novel intranasally delivered amnion cell derived biologic to suppress inflammation, prevent neuronal damage and preserve neurologic function in the experimental autoimmune encephalomyelitis animal model of multiple sclerosis was assessed. Currently, there are no existing optic nerve treatment methods for disease or trauma that result in permanent vision loss. Demyelinating optic nerve inflammation, termed optic neuritis, induces permanent visual dysfunction due to retinal ganglion cell damage in multiple sclerosis and experimental autoimmune encephalomyelitis...
January 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28135360/retinal-architecture-and-melanopsin-mediated-pupillary-response-characteristics-a-putative-pathophysiologic-signature-for-the-retino-hypothalamic-tract-in-multiple-sclerosis
#16
Ethan Meltzer, Peter V Sguigna, Adnan Subei, Shin Beh, Eric Kildebeck, Darrel Conger, Amy Conger, Marlen Lucero, Benjamin S Frohman, Ashley N Frohman, Shiv Saidha, Steven Galetta, Peter A Calabresi, Robert Rennaker, Teresa C Frohman, Randy H Kardon, Laura J Balcer, Elliot M Frohman
Importance: A neurophysiologic signature of the melanopsin-mediated persistent constriction phase of the pupillary light reflex may represent a surrogate biomarker for the integrity of the retinohypothalamic tract, with potential utility for investigating alterations in homeostatic mechanisms associated with brain disorders and implications for identifying new treatments. Objective: To characterize abnormalities of retinal architecture in patients with multiple sclerosis (MS) and corresponding alterations in the melanopsin-mediated sustained pupillary constriction response...
January 30, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28132975/a-case-of-neuromyelitis-optica-spectrum-disorder-nmosd-with-sj%C3%A3-gren-s-syndrome-manifested-only-brain-involvement-by-preceding-parotitis
#17
Takahiro Furukawa, Naoko Matsui, Keiko Tanaka, Yuishin Izumi, Ryuji Kaji
A 33 year-old woman presented with intentional incontinence, motor aphasia, supranuclear gaze palsy, and spasticity after parotitis. Brain magnetic resonance images (MRI) showed abnormal signaling in long corticospinal tract involving internal capsules and cerebral peduncles, middle cerebellar peduncle, and frontal subcortical white matter lesions. She had a long history of dry eye and mouth. Immunoserological study showed that she was positive for anti-SS-A, aquaporin 4 (AQP4), and AQP5 antibodies. She clinically showed not only Sjögren's syndrome but also neuromyelitis optica spectrum disorder (NMOSD) without optic neuritis or myelitis...
January 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28131170/longitudinally-extensive-transverse-myelitis-immune-mediated-in-aquaporin-4-antibody-negative-patients-disease-heterogeneity
#18
Edgar Carnero Contentti, Javier Pablo Hryb, Sergio Morales, Alejandra Gomez, Edson Chiganer, José Luis Di Pace, Carmen Lessa, Mónica Perassolo
BACKGROUND: Longitudinally extensive transverse myelitis (LETM) is a frequent manifestation of neuromyelitis optica spectrum disorder (NMOSD). However, it can also occur in other immune-mediated diseases of the central nervous system (CNS). Positive aquoporin-4 antibodies (AQP4-ab) predict higher relapse rate after LETM. OBJECTIVE: To assess clinical and brain/spinal cord magnetic resonance imaging (MRI) features of LETM immune-mediated at onset and to compare AQP4-ab negative (N-LETM) with AQP4-ab positive (P-LETM) patients...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28125740/retinal-nerve-fiber-layer-may-be-better-preserved-in-mog-igg-versus-aqp4-igg-optic-neuritis-a-cohort-study
#19
Hadas Stiebel-Kalish, Itay Lotan, Judith Brody, Gabriel Chodick, Omer Bialer, Romain Marignier, Michael Bach, Mark Andrew Hellmann
BACKGROUND: Optic neuritis (ON) in patients with anti-myelin oligodendrocyte glycoprotein (MOG)-IgG antibodies has been associated with a better clinical outcome than anti-aquaporin 4 (AQP4)- IgG ON. Average retinal nerve fiber layer thickness (RNFL) correlates with visual outcome after ON. OBJECTIVES: The aim of this study was to examine whether anti-MOG-IgG ON is associated with better average RNFL compared to anti-AQP4-IgG ON, and whether this corresponds with a better visual outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28115874/optic-neuritis-and-acute-anterior-uveitis-associated-with-influenza-a-infection-a-case-report
#20
Hayate Nakagawa, Hidetaka Noma, Osamu Kotake, Ryosuke Motohashi, Kanako Yasuda, Masahiko Shimura
BACKGROUND: A few reports have described ocular complications of influenza A infection, such as impaired ocular movement, parasympathetic ocular nerve, keratitis, macular lesion, and frosted branch angiitis. We encountered a rare case of acute anterior uveitis and optic neuritis associated with influenza A infection. CASE PRESENTATION: A 70-year-old man presented with symptoms of upper respiratory tract infection. A rapid diagnostic test showed a positive result for influenza A...
2017: International Medical Case Reports Journal
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