Read by QxMD icon Read

Neuromyelitis Optica (NMO) Spectrum Disorders

Christopher Hollen, Omer Suhaib, Aaron Farrow, Evgeny Sidorov
We present a case of an 82-year-old man with new-onset neuromyelitis optica (NMO) spectrum disorder, the treatment of which was complicated by a severe pre-existing prednisone allergy. His age caused much initial doubt about his diagnosis, and his corticosteroid allergy altered our management as we attempted to minimize risk to the patient. Our patient was a healthy 82-year-old, right-handed man who presented with sensory loss of the bilateral lower extremities and progressive, painless vision loss. MRI showed bilateral pre-chiasmatic optic nerve and optic chiasm enhancement, along with enhancement within the thoracic spinal cord from T3 to T7...
January 2018: Case Reports in Neurology
Ami Schattner, Shilo Voichanski, Livnat Uliel
A healthy 38-year-old woman developed sudden unilateral vision loss due to retrobulbar optic neuritis in the wake of varicella-zoster virus infection. She had no further central nervous system (CNS) lesions. Antinuclear antibodies (ANA) and anti-aquaporin 4 antibodies were found, consistent with neuromyelitis optica (NMO). Later, serial MRIs showed dynamic short-segment and long-segment myelitis lesions, ANA titre increased and additional autoantibodies were found including anti-dsDNA, anti-chromatin/nucleosome and antiphospholipid antibodies...
March 5, 2018: BMJ Case Reports
Seyed Mohammad Baghbanian, Nasrin Asgari, Mohammad Ali Sahraian, Abdorreza Naser Moghadasi
Neuromyelitis optica spectrum disorder (NMOSD) is an autoimmune inflammatory disorder of the central nervous system (CNS). Serum immunoglobulin G autoantibodies (NMO-IgG) are identified in the majority of NMOSD patients. The Pediatric form presents before 18 years. Based on the similarity of clinical, neuroimaging, and laboratory characteristics of pediatric NMOSD to those of the adult form, the international panel suggested that adult criteria of NMOSD also are appropriate in pediatric patients. However, the proposed criteria need validation in pediatric patients...
February 19, 2018: Journal of the Neurological Sciences
Elisabeth Maillart, Anaïs Lippi, Catherine Lubetzki, Céline Louapre, Caroline Papeix
BACKGROUND: We report a dramatic clinical and radiological worsening within two months after rituximab initiation in a patient with NeuroMyelitis Optica/Multiple Sclerosis (NMO/MS) overlap syndrome. METHODS: Case study. RESULTS: A 45-year-old Caucasian woman with NMO/MS overlap syndrome experienced a severe myelitis nine weeks after first rituximab infusion, with extensive new gadolinium-enhanced spinal cord lesions. CONCLUSION: This case report illustrates the limits of MS and NMO-Spectrum Disorder classification and challenges the criteria of therapeutic failure within the 6 months after rituximab initiation...
February 6, 2018: Multiple Sclerosis and related Disorders
Lukmanee Tradtrantip, Christian M Felix, Rolf Spirig, Adriana Baz Morelli, A S Verkman
Intravenous human immunoglobulin G (IVIG) may have therapeutic benefit in neuromyelitis optica spectrum disorders (herein called NMO), in part because of the anti-inflammatory properties of the IgG Fc region. Here, we evaluated recombinant Fc hexamers consisting of the IgM μ-tailpiece fused with the Fc region of human IgG1. In vitro, the Fc hexamers prevented cytotoxicity in aquaporin-4 (AQP4) expressing cells and in rat spinal cord slice cultures exposed to NMO anti-AQP4 autoantibody (AQP4-IgG) and complement, with >500-fold greater potency than IVIG or monomeric Fc fragments...
February 8, 2018: Neuropharmacology
E Carnero Contentti, I Soto de Castillo, V Daccach Marques, P A López, A Antunes Barreira, E Armas, C de Aquino Cruz, A Rubstein, C Lavigne Moreira, O M Molina, A Soto, V Tkachuk
BACKGROUND: The 2015 International Panel for neuromyelitis optica (NMO) spectrum disorders (NMOSD) diagnosis (IPND) criteria was recently proposed. However, because there are no studies evaluating application of the IPND criteria in Latin American populations, we aimed to assess whether these new criteria improve the diagnostic rate and reduce the time taken to make the diagnosis in a cohort of Latin American patients. METHODS: We reviewed medical records and applied both the 2006 and 2015 diagnostic criteria to all patients seen in four centers in Argentina, Brazil and Venezuela...
January 6, 2018: Multiple Sclerosis and related Disorders
G H Dale, K B Svendsen, M C Gjelstrup, T Christensen, G Houen, E Nielsen, T Bek, T Petersen
OBJECTIVES: Neuromyelitis optica (NMO)/NMO spectrum disorder (NMOSD) may be misdiagnosed as multiple sclerosis. The aim of this study was to (i) to measure AQP4-IgG in patients who fulfilled the clinical and radiological criteria of NMOSD in the Central Denmark Region and (ii) to estimate the incidence of NMOSD in the region, according to both the 2006 Wingerchuk criteria and the 2015 International Panel for NMO Diagnosis criteria. MATERIALS AND METHODS: Medical records of all patients diagnosed with a demyelinating disorder in the region from 1 January 2012 to 31 December 2013 were reviewed...
January 22, 2018: Acta Neurologica Scandinavica
Eun Bin Cho, Hye-Jin Cho, Jin Myoung Seok, Ju-Hong Min, Eun-Suk Kang, Byoung Joon Kim
B cells contribute to the pathogenesis of neuromyelitis optica (NMO) by producing Aquaporin 4-specific autoantibodies (AQP4-ab); on the other hand, there are certain B cells that suppress immune responses by producing regulatory cytokines, such as IL-10. In this study, we investigated the presence of IL-10-producing Breg cells among lymphocyte subsets. Twenty-two seropositive NMO spectrum disorder (NMOSD) patients (29 samples) and 13 healthy controls (HCs) (14 samples) were enrolled. All NMOSD patients have received one or more immunosuppressive drugs...
January 19, 2018: Neurological Sciences
Alice Bruscolini, Marta Sacchetti, Maurizio La Cava, Magda Gharbiya, Massimo Ralli, Alessandro Lambiase, Armando de Virgilio, Antonio Greco
Neuromyelitis optica (NMO) and Neuromyelitis optica spectrum disorders (NMOSD) are a group of autoimmune conditions characterized by inflammatory involvement of the optic nerve, spinal cord and central nervous system. Novel evidence showed a key role of autoantibodies against aquaporin-4 immunoglobulin G (AQP4 IgG) in the pathogenesis of NMOSD and, recently, new classification and diagnostic criteria have been adopted to facilitate an earlier identification and improve the management of these conditions. Diagnosis of NMOSD is currently based on clinical, neuroimaging and laboratory features...
January 12, 2018: Autoimmunity Reviews
Bruna Garbugio Dutra, Antônio José da Rocha, Renato Hoffmann Nunes, Antônio Carlos Martins Maia
Neuromyelitis optica (NMO) is an autoimmune demyelinating disorder for which the aquaporin-4 (AQP4) water channels are the major target antigens. Advances in the understanding of NMO have clarified several points of its pathogenesis, clinical manifestations, and imaging patterns. A major advance was the discovery of the AQP4 antibody, which is highly specific for this disorder. Descriptions of new clinical and radiologic features in seropositive patients have expanded the spectrum of NMO, and the term NMO spectrum disorder (NMOSD) has been adopted...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Philippe Beauchemin, Raffaele Iorio, Anthony L Traboulsee, Thalia Field, Anna V Tinker, Robert L Carruthers
BACKGROUND: Paraneoplastic syndromes are remote effects of cancer caused by an autoimmune response triggered by tumor cells. Paraneoplastic Neuromyelitis Optica Spectrum Disorders (NMOSD) has been previously described, but the underlying mechanism for these rare cases is not well characterized. This paper presents a newly described case series of paraneoplastic NMOSD, including 2 new histological types of cancer and histological validation. METHODS: The UBC NMO clinic database was surveyed and identified 6 patients with paraneoplastic NMOSD...
December 23, 2017: Multiple Sclerosis and related Disorders
Anjiao Peng, Xiangmiao Qiu, Lin Zhang, Xi Zhu, Shixu He, Wanlin Lai, Lei Chen
BACKGROUND: An increasing number of studies have investigated the value of optical coherence tomography in patients with neuromyelitis optica (NMO) spectrum disorders; however, no systematic review has been performed to date. We aimed to systematically review and investigate the possibility of differentiating NMO and multiple sclerosis (MS) via an optical coherence tomography measurement. METHODS: Electronic databases, including MEDLINE, EMBASE and Web of Science, were systematically searched up to June 2017...
December 15, 2017: Journal of the Neurological Sciences
Edgar Carnero Contentti, Vanessa Daccach Marques, Ibis Soto de Castillo, Veronica Tkachuk, Amilton Antunes Barreira, Elizabeth Armas, Edson Chiganer, Camila de Aquino Cruz, José Luis Di Pace, Javier Pablo Hryb, Carolina Lavigne Moreira, Carmen Lessa, Omaira Molina, Monica Perassolo, Arnoldo Soto, Alejandro Caride
BACKGROUND: Brain magnetic resonance imaging (BMRI) lesions were classically not reported in neuromyelitis optica (NMO). However, BMRI lesions are not uncommon in NMO spectrum disorder (NMOSD) patients. OBJECTIVE: To report BMRI characteristic abnormalities (location and configuration) in NMOSD patients at presentation. METHODS: Medical records and BMRI characteristics of 79 patients with NMOSD (during the first documented attack) in Argentina, Brazil and Venezuela were reviewed retrospectively...
November 8, 2017: Multiple Sclerosis and related Disorders
Jia Liu, Li Xu, Zhuo-Lin Chen, Min Li, Huan Yi, Fu-Hua Peng
Previous research indicated the association between hepatitis B virus (HBV) infection/vaccination and the onset of demyelinating diseases. However, most of these studies were single case reports, and comprehensive data are still scarce. Here we present a comprehensive analysis of 10 patients with neuromyelitis optica spectrum disorder (NMOSD) combined with chronic hepatitis B (CHB) infection and seropositive for anti-aquaporin-4 antibody (AQP4-Ab). Demographic, clinical, laboratory, neuroimaging, outcome, and follow-up data of the 10 patients were retrospectively analyzed...
February 20, 2018: Bosnian Journal of Basic Medical Sciences
Sharareh Eskandarieh, Saharnaz Nedjat, Amir Reza Azimi, Abdorreza Naser Moghadasi, Mohammad Ali Sahraian
BACKGROUND: Neuromyelitys optica spectrum disorder (NMOSD) is a rare demyelinating disease; as a result, the epidemiological data on this disorder is scarce. In this regard, the aim of this study was to estimate the prevalence, serology, and clinical features of NMOSD in Caucasian population in Tehran, Iran. METHOD: A cross sectional study was performed in Tehran from 2015 to 2016 among patients registered with NMOSD diagnosis, based on consensus criteria published in 2015...
November 2017: Multiple Sclerosis and related Disorders
Thomas Volkman, Cheryl Hemingway
Neuromyelitis optica (NMO) and NMO spectrum disorder (NMOSD) is a rare relapsing autoimmune disease of the central nervous system constituting less than 1% of demyelinating diseases (Jeffery and Buncic, 1996). It preferentially affects the optic nerves and spinal cord, with the brain parenchyma generally spared. Demyelinating lesions are characterised by longitudinally extensive transverse myelitis (LETM) and often longitudinally extensive optic neuritis. Following the discovery of a novel pathogenic antibody, Aquaporin 4 in 2004 (Lennon et al...
November 2017: Multiple Sclerosis and related Disorders
Shahd H M Hamid, Dan Whittam, Mariyam Saviour, Amal Alorainy, Kerry Mutch, Samantha Linaker, Tom Solomon, Maneesh Bhojak, Mark Woodhall, Patrick Waters, Richard Appleton, Martin Duddy, Anu Jacob
Importance: Antibodies to myelin oligodendrocyte glycoprotein IgG (MOG-IgG) are increasingly detected in patients with non-multiple sclerosis-related demyelination, some of whom manifest a neuromyelitis optica (NMO) phenotype. Cortical involvement, encephalopathy, and seizures are rare in aquaporin 4 antibody (AQP4-IgG)-related NMO in the white European population. However, the authors encountered several patients with seizures associated with MOG-IgG disease. Objective: To compare incidence of seizures and encephalitis-like presentation, or both between AQP4-IgG-positive and MOG-IgG-positive patients...
November 13, 2017: JAMA Neurology
Jinming Han, Meng-Ge Yang, Jie Zhu, Tao Jin
Neuromyelitis optica (NMO), considered to be mediated by autoantibodies, often cause severely disabling disorders of the central nervous system, and predominantly cause optic nerve damage and longitudinally extensive transverse myelitis. Remarkable progress has been made in deciphering NMO pathogenesis during the past decade. In 2015, the International Panel for NMO Diagnosis proposed the unifying term "NMO spectrum disorders" (NMOSD) and the updated NMOSD criteria reflects a wide range of disease and maintains reasonable specificity...
2017: Neuropsychiatric Disease and Treatment
Mahsa Arzani, Mohammad Ali Sahraian, Hamed Rezaei, Abdorreza Naser Moghadasi
Background: Isolated relapsing optic neuropathy is a recurrent painful optic nerve inflammation without any sign of other demyelinating diseases such as multiple sclerosis (MS) or neuromyelitis optica (NMO) spectrum disorders, and the attacks are purely responsive to steroid therapy. Methods: Recurrent isolated optic neuritis (RION) was diagnosed in patients who presented with at least two disseminating episodes of optic neuritis, and negative clinical, para-clinical, and radiological features of the demyelinating, infiltrative and vasculitis disorders involving optic nerve...
July 6, 2017: Iranian Journal of Neurology
Jyh Yung Hor, Thien Thien Lim, Yuen Kang Chia, Yee Ming Ching, Chun Fai Cheah, Kenny Tan, Han Bing Chow, Masita Arip, Gaik Bee Eow, P E Samuel Easaw, M Isabel Leite
BACKGROUND: Neuromyelitis optica spectrum disorder (NMOSD) occurs worldwide in all ethnicities. Recently, population-based studies have shown that NMOSD is more common among non-White populations. There is scarce data about NMOSD prevalence in South East Asian populations. METHODS: (1) A population-based study was undertaken to estimate NMOSD prevalence in the multi-ethnic Penang Island, Malaysia, comprising Chinese, Malays, and Indians. Medical records of NMOSD patients followed up at the Penang General Hospital (the neurology referral centre in Penang Island) were reviewed...
October 21, 2017: Multiple Sclerosis and related Disorders
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"