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Optic neuritis

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https://www.readbyqxmd.com/read/28806345/pediatric-optic-neuritis-what-is-new
#1
Mark Borchert, Grant T Liu, Stacy Pineles, Amy T Waldman
Few diseases blur the margins between their childhood and adult-onset varieties as much as optic neuritis. This report will review our state of knowledge of pediatric optic neuritis, as well as its relationship to the latest consensus definitions of neuroinflammatory disease. Current diagnostic and treatment options will be explored, as well as our potential to uncover an understanding of pediatric optic neuritis through systematic prospective studies. The risk of evolving multiple sclerosis is probably less than in adults, but pediatric optic neuritis is more likely to be an initial manifestation of acute disseminated encephalomyelitis...
September 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28802665/no-evidence-of-association-between-optic-neuritis-and-secondary-lhon-mtdna-mutations-in-patients-with-multiple-sclerosis
#2
Sasan Andalib, Mahnaz Talebi, Ebrahim Sakhinia, Mehdi Farhoudi, Homayoun Sadeghi-Bazargani, Nooshin Masoodian, Manouchehr Seyedi Vafaee, Albert Gjedde
Leber's Hereditary Optic Neuropathy (LHON) shares features with Multiple Sclerosis (MS). Both diseases develop optic lesions. Frequent secondary LHON mutations in MS patients may explain the optic damage. Here, we tested the hypothesis that secondary LHON mutations are associated with optic neuritis (ON) in MS patients. We recruited 56 MS subjects with ON and 47 MS subjects without ON. DNA was extracted by salting out, after sampling of peripheral blood from each participant. We completed Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) analysis with appropriate primers and restriction endonucleases for seven secondary LHON mutations...
August 9, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28789573/the-protective-effect-of-fish-oil-against-cisplatin-induced-eye-damage-in-rat
#3
Burcu Gul Baykalir, Osman Ciftci, Aslı Cetin, Nese Basak Turkmen
Ocular toxicity induced by anticancer chemotherapy is not uncommon, but underestimated and under-reported. Visual changes have been attributed to a number of chemotherapeutic agents in humans. Cisplatin (CP), a heavy metal compound, is used in the treatment of many types of tumors. CP is known to produce non-specific blurred vision, papilledema and optic neuritis for high doses as well as cumulative dose regimens. The aim of this study was to investigate the possible beneficial effects of fish oil (FO) on eye tissue oxidative status and histological alterations against CP-induced in the rats...
August 8, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28770374/mog-antibody-related-disorders-common-features-and-uncommon-presentations
#4
Álvaro Cobo-Calvo, Anne Ruiz, Hyacintha D'Indy, Anne-Lise Poulat, Maryline Carneiro, Nicolas Philippe, Françoise Durand-Dubief, Kumaran Deiva, Sandra Vukusic, Vincent Desportes, Romain Marignier
Myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) have been reported in acute demyelinating encephalomyelitis (ADEM), optic neuritis (ON), and neuromyelitis optica spectrum disorders (NMOSD) in adults and pediatrics. We aimed to delineate the common features of MOG-Ab-related disorders in children and adults, and report uncommon presentations. Twenty-seven consecutive pediatric and adult patients testing positive for MOG-Ab, with a minimum follow-up of 6 months, were included. Comprehensive epidemiological, clinical, radiological, and laboratory data were retrospectively analyzed...
August 2, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28754639/bevacizumab-for-radiation-associated-visual-decline-among-aggressive-residual-recurrent-suprasellar-tumors-more-than-a-mere-anti-neoplastic-effect
#5
Pinaki Dutta, Sivashanmugam Dhandapani, Narendra Kumar, Prakamya Gupta, Chirag Ahuja, K K Mukherjee
BACKGROUND: Angiogenesis and vascular endothelial growth factor (VEGF) are recently being implicated in animal and clinical models of radiation-induced optic nerve-retinal and brain necrosis. Though there are isolated case reports of anti-VEGF therapy (Bevacizumab) as a treatment modality in the management of radiation induced brain necrosis, there is paucity of data defining its role in radiation induced optic nerve damage. PATIENTS AND METHOD: patients with sellar suprasellar tumor who received intensity modulated or Gamma Knife radiotherapy and developed radiation induced optic neuritis refractory to three weeks of glucocorticoid therapy who were given bevacizumab 5mg/Kg intra venously as initial dose followed by 10mg/Kg subsequent doses...
July 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28752311/natural-history-of-lesions-with-the-mr-imaging-appearance-of-multinodular-and-vacuolating-neuronal-tumor
#6
Reema Alsufayan, Paula Alcaide-Leon, Lyne Noel de Tilly, Daniel M Mandell, Timo Krings
PURPOSE: Multinodular and vacuolating neuronal tumor (MVNT) have been recently added to the WHO classification of CNS tumors and has not been extensively reported upon in the radiological literature. We report the first radiological and the largest series of cases, aiming to highlight the natural history of lesions with the imaging appearance of MVNT with long follow-up time. METHODS: In this retrospective study, we collected cases with the imaging appearance of MVNT...
July 27, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28749847/optic-canal-decompression-with-unexpected-changes-in-cerebrospinal-fluid-of-the-optic-canal
#7
Ende Wu, Wencan Wu
Optic neuritis is a common inflammatory disease of the optic nerve. And the cerebral spinal fluid (CSF) in the subarachnoid space of optic nerve is thought to be homogeneous as in spine. We report a case of optic neuritis, some unexpected opaque fluid observed to flow out from the optic canal during the optic canal decompression surgery when the CSF in spine is normal. One day after the surgery, the visual acuity of the patient improved dramatically to 0.4 from 0.05. This report highlights the possible restrictive pathological changes of the CSF in the optic nerve of acute optic neuritis, which may be the reason of the dysfunction of the optic nerve...
July 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28738904/increased-interleukin-27-cytokine-expression-in-the-central-nervous-system-of-multiple-sclerosis-patients
#8
Patrice H Lalive, Mario Kreutzfeldt, Odile Devergne, Imke Metz, Wolfgang Bruck, Doron Merkler, Caroline Pot
BACKGROUND: Multiple sclerosis (MS) is an autoimmune disorder characterized by chronic inflammation, demyelination, and neuronal damage. During autoimmunity, cytokines are important mediators of the inflammation. In this line, interleukin-27 (IL-27) modulates inflammation and can be produced directly at inflammatory sites such as in the joints during rheumatoid arthritis or in the central nervous system (CNS) during MS. While in animal models of MS, treatment with IL-27 decreases the disease severity, its role in humans is not clearly established and it is not known if IL-27 could be detected in the cerebrospinal fluid (CSF) of MS patients...
July 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28733756/glial-and-neuronal-antibodies-in-patients-with-idiopathic-intracranial-hypertension
#9
Güneş Altıokka-Uzun, Ece Erdağ, Betül Baykan, John Tzartos, Duygu Gezen-Ak, Bedia Samancı, Erdinç Dursun, Paraskevi Zisimopoulou, Katerina Karagiorgou, Christos Stergiou, Erdi Şahin, Esme Ekizoğlu, Murat Kürtüncü, Erdem Tüzün
Headache and visual disturbances are the main presenting symptoms of idiopathic intracranial hypertension (IIH) characterized by increased intracranial pressure (ICP) with an unknown cause. We aimed to investigate the antibodies against optic neuritis-associated glial antigens, aquaporin-4 (AQP4) and myelin oligodendrocyte glycoprotein (MOG) and uncharacterized neuronal membrane antigens in IIH patients. Consecutive patients diagnosed according to Friedman revised diagnostic criteria and control subjects were included after their consent...
July 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28727882/corneal-confocal-microscopy-an-imaging-endpoint-for-axonal-degeneration-in-multiple-sclerosis
#10
Ioannis N Petropoulos, Saadat Kamran, Yi Li, Adnan Khan, Georgios Ponirakis, Naveed Akhtar, Dirk Deleu, Ashfaq Shuaib, Rayaz A Malik
Purpose: To evaluate whether corneal confocal microscopy (CCM) detects axonal degeneration and whether this is associated with retinal nerve fiber degeneration and clinical disability in patients with multiple sclerosis (MS). Methods: Twenty-five patients with MS and 25 healthy control subjects underwent CCM, optical coherence tomography (OCT), and assessment of neurological disability using the expanded disability status scale (EDSS) and MS severity score (MSSS)...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28726788/neuroprotection-by-eif2%C3%AE-chop-inhibition-and-xbp-1-activation-in-eae-optic-neuritiss
#11
Haoliang Huang, Linqing Miao, Feisi Liang, Xiaodong Liu, Lin Xu, Xiuyin Teng, Qizhao Wang, William H Ridder, Kenneth S Shindler, Yang Sun, Yang Hu
No therapies exist to prevent neuronal deficits in multiple sclerosis (MS), because the molecular mechanism responsible for the progressive neurodegeneration is unknown. We previously showed that axon injury-induced neuronal endoplasmic reticulum (ER) stress plays an important role in retinal ganglion cell (RGC) death and optic nerve degeneration in traumatic and glaucomatous optic neuropathies. Optic neuritis, one of the most common clinical manifestations of MS, is readily modeled by experimental autoimmune encephalomyelitis (EAE) in mouse...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28719871/optic-neuritis-in-pregnancy-after-tdap-vaccination-report-of-two-cases
#12
Jose M Cabrera-Maqueda, Rocio Hernández-Clares, Ana E Baidez-Guerrero, Julian Ignacio Bermúdez Pío-Rendón, Jose J Martín Fernández
Two pregnant women developed one-eye blurring vision within three weeks after Tdap vaccination. Neurophtalmologic and MR examination confirmed an unilateral optic neuritis without evidence of underlying disease. Both patients had a full recovery, one after intravenous metilprednisolone. This is the first report of optic neuritis related with Tdap vaccination in pregnancy.
September 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28718500/neurofilament-light-as-an-immune-target-for-pathogenic-antibodies
#13
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. Immunization 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, although 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/28716667/pupillometric-evaluation-of-the-melanopsin-containing-retinal-ganglion-cells-in-mitochondrial-and-non-mitochondrial-optic-neuropathies
#14
Shakoor Ba-Ali, Henrik Lund-Andersen
In recent years, chromatic pupillometry is used in humans to evaluate the activity of melanopsin expressing intrinsic photosensitive retinal ganglion cells (ipRGCs). Blue light is used to stimulate the ipRGCs and red light activates the rod/cone photoreceptors. The late re-dilation phase of pupillary light reflex is primarily driven by the ipRGCs. Optic neuropathies i.e. Leber hereditary optic neuropathy (LHON), autosomal dominant optic atrophy (ADOA), nonarteritic anterior ischemic optic neuropathy (NAION), glaucoma, optic neuritis and idiopathic intracranial hypertension (IIH) are among the diseases, which have been subject to pupillometric studies...
July 14, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28709761/central-nervous-system-involvement-in-eosinophilic-granulomatosis-with-polyangiitis-churg-strauss-report-of-26-patients-and-review-of-the-literature
#15
REVIEW
Raphaël André, Vincent Cottin, Jean-Luc Saraux, Gilles Blaison, Boris Bienvenu, Pascal Cathebras, Robin Dhote, Aurélie Foucher, Helder Gil, Joëlle Lapoirie, David Launay, Valentine Loustau, François Maurier, Edouard Pertuiset, Thierry Zénone, Jörg Seebach, Nathalie Costedoat-Chalumeau, Xavier Puéchal, Luc Mouthon, Loïc Guillevin, Benjamin Terrier
BACKGROUND: Although peripheral nervous system involvement is common in eosinophilic granulomatosis with polyangiitis (EGPA), central nervous system (CNS) manifestations are poorly described. This study aimed to describe CNS involvement in EGPA. PATIENTS AND METHODS: This retrospective, observational, multicenter study included patients with EGPA and CNS involvement affecting cranial nerves, brain and/or spinal cord. We also undertook a systematic literature review...
July 12, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28694135/characteristics-of-pediatric-multiple-sclerosis-the-turkish-pediatric-multiple-sclerosis-database
#16
Ünsal Yılmaz, Banu Anlar, Kıvılcım Gücüyener
OBJECTIVE: To document the clinical and paraclinical features of pediatric multiple sclerosis (MS) in Turkey. METHODS: Data of MS patients with onset before age 18 years (n = 193) were collected from 27 pediatric neurology centers throughout Turkey. Earlier-onset (<12 years) and later-onset (≥12 years) groups were compared. RESULTS: There were 123 (63.7%) girls and 70 (36.3%) boys aged 4-17 years, median 14 years at disease onset. Family history of MS was 6...
June 29, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28684532/longitudinal-analysis-of-myelin-oligodendrocyte-glycoprotein-antibodies-in-cns-inflammatory-diseases
#17
Jae-Won Hyun, Mark R Woodhall, Su-Hyun Kim, In Hye Jeong, Byungsoo Kong, Gayoung Kim, Yeseul Kim, Min Su Park, Sarosh R Irani, Patrick Waters, Ho Jin Kim
BACKGROUND: We evaluated the seroprevalence of myelin oligodendrocyte glycoprotein immunoglobulin G1 (MOG-IgG) and associated clinical features of patients from a large adult-dominant unselected cohort with mainly relapsing central nervous system (CNS) inflammatory diseases. We also investigate the clinical relevance of MOG-IgG through a longitudinal analysis of serological status over a 2-year follow-up period. METHODS: Serum samples from 505 patients with CNS inflammatory diseases at the National Cancer Center were analysed using cell-based assays for MOG-IgG and aquaporin-4 immunoglobulin G (AQP4-IgG)...
July 6, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28680531/mitochondrial-uncoupler-prodrug-of-2-4-dinitrophenol-mp201-prevents-neuronal-damage-and-preserves-vision-in-experimental-optic-neuritis
#18
Reas S Khan, Kimberly Dine, John G Geisler, Kenneth S Shindler
The ability of novel mitochondrial uncoupler prodrug of 2,4-dinitrophenol (DNP), MP201, to prevent neuronal damage and preserve visual function in an experimental autoimmune encephalomyelitis (EAE) model of optic neuritis was evaluated. Optic nerve inflammation, demyelination, and axonal loss are prominent features of optic neuritis, an inflammatory optic neuropathy often associated with the central nervous system demyelinating disease multiple sclerosis. Currently, optic neuritis is frequently treated with high-dose corticosteroids, but treatment fails to prevent permanent neuronal damage and associated vision changes that occur as optic neuritis resolves, thus suggesting that additional therapies are required...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28674367/neuromyelitis-optica-spectrum-disorder-with-recurrent-intracranial-hemorrhage
#19
Hiroaki Yaguchi, Yasunori Mito, Ikkei Ohashi, Taichi Nomura, Ichiro Yabe, Yasutaka Tajima
The patient was a woman without hypertension who had previously experienced intracranial hemorrhage twice at 48 and 56 years of age. At 59 years of age, she was diagnosed with neuromyelitis optica spectrum disorder (NMOSD) based on the presence of a brain stem lesion and the detection of anti-aquaporin 4 (AQP4) antibodies. After 5 months of continuous treatment with prednisolone (15 mg/day), she presented with optic neuritis and intracranial bleeding. A recurrent attack of NMOSD and intracranial hemorrhage were concurrently diagnosed...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28670343/differential-diagnosis-of-neuromyelitis-optica-spectrum-disorders
#20
REVIEW
Sung-Min Kim, Seong-Joon Kim, Haeng Jin Lee, Hiroshi Kuroda, Jacqueline Palace, Kazuo Fujihara
Neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory disorder of the central nervous system (CNS) mostly manifesting as optic neuritis and/or myelitis, which are frequently recurrent/bilateral or longitudinally extensive, respectively. As the autoantibody to aquaporin-4 (AQP4-Ab) can mediate the pathogenesis of NMOSD, testing for the AQP4-Ab in serum of patients can play a crucial role in diagnosing NMOSD. Nevertheless, the differential diagnosis of NMOSD in clinical practice is often challenging despite the phenotypical and serological characteristics of the disease because: (1) diverse diseases with autoimmune, vascular, infectious, or neoplastic etiologies can mimic these phenotypes of NMOSD; (2) patients with NMOSD may only have limited clinical manifestations, especially in their early disease stages; (3) test results for AQP4-Ab can be affected by several factors such as assay methods, serologic status, disease stages, or types of treatment; (4) some patients with NMOSD do not have AQP4-Ab; and (5) test results for the AQP4-Ab may not be readily available for the acute management of patients...
July 2017: Therapeutic Advances in Neurological Disorders
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