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https://www.readbyqxmd.com/read/28212467/comparison-of-6-mercaptopurine-with-6-thioguanine-for-the-analysis-of-thiopurine-s-methyltransferase-activity-in-human-erythrocyte-by-lc-ms-ms
#1
Shenghui Mei, Xindi Li, Xiaoqing Gong, Xiaoyi Zhang, Xingang Li, Li Yang, Leting Zhu, Heng Zhou, Yonghong Liu, Anna Zhou, Xinghu Zhang, Zhigang Zhao
Thiopurines (TPDs) are first-line drugs in treating neuromyelitis optica spectrum disorders (NMOSD). Thiopurine S-methyltransferase activity (TPMT), a major determinant of TPDs toxicity, was suggested to be evaluated before TPDs treatment by using 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG) as substrate. However, the equivalent of the two substrates in TPMT activity evaluation was unknown, and alternative substrate was required in TPMT activity evaluation in patients who were already taking 6-MP or 6-TG...
February 17, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28159705/demyelinating-syndrome-in-sle-encompasses-different-subtypes-do-we-need-new-classification-criteria-pooled-results-from-systematic-literature-review-and-monocentric-cohort-analysis
#2
Matteo Piga, Elisabetta Chessa, Maria Teresa Peltz, Alberto Floris, Alessandro Mathieu, Alberto Cauli
OBJECTIVE: To describe features of demyelinating syndrome (DS) in systemic lupus erythematosus (SLE). METHODS: A systematic review using a combination of Mesh terms in PubMed and a retrospective analysis of 343 adult patients with SLE were carried out to identify patients with DS. Retrieved cases were classified as affected with DS according to 1999 ACR nomenclature and attributed to SLE by applying the 2015 algorithm. DS defined according to the clinical but not temporal 1999 ACR criteria was classified as clinically isolated syndrome (CIS)...
January 31, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28149102/magnetic-resonance-imaging-brain-findings-in-a-case-of-aquaporin-4-antibody-positive-neuromyelitis-optica-spectrum-disorder-presenting-with-intractable-vomiting-and-hiccups
#3
Prerna Garg, Muthusubramanian Rajasekaran, Salil Pandey, Gnanashanmugam Gurusamy, Devanand Balalakshmoji, Rajakumar Rathinasamy
Neuromyelitisoptica (NMO) and multiple sclerosis (MS) were once considered to be differing manifestation of same auto immune disease, NMO predominantly involving the optic nerve and cord. Now with discovery of NMO antibody the concept has changed and a spectrum of disorders with lesions in brain has been identified. Occasionally, brain may be the first or the only site of involvement in these disorders hence it is essential to be aware of this spectrum. The brain lesions in NMO/NMOSD may be located in characteristic regions and present with symptoms mimicking non neurological disease...
January 2017: Journal of Neurosciences in Rural Practice
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
#4
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
#5
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/28127508/elevated-cerebrospinal-fluid-uric-acid-during-relapse-of-neuromyelitis-optica-spectrum-disorders
#6
Yaqing Shu, Haiyan Li, Lei Zhang, Yuge Wang, Youming Long, Rui Li, Wei Qiu, Zhengqi Lu, Xueqiang Hu, Fuhua Peng
INTRODUCTION: Previous studies have shown that serum uric acid (UA) modulates outcomes of neurological diseases, although little is known about cerebrospinal fluid (CSF) UA levels in neuromyelitis optica spectrum disorders (NMOSDs). METHODS: Cerebrospinal fluid and serum UA levels were measured in samples from 68 patients, including NMOSDs during relapse (n = 38) and controls with noninflammatory and non-neurodegenerative diseases (CTLs, n = 30). Correlation analysis was performed between CSF UA and clinical characteristics, serum UA, and blood-brain barrier integrity in NMOSDs...
January 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28109254/letm-presented-with-causalgia-and-ensued-by-sudden-death
#7
Rana Alnasser Alsukhni, Yasmin Aboras, Ziena Jriekh, Mahmoud Almalla, Ahmad Sheikh El-Kahwateya
BACKGROUND: Longitudinally Extensive Transverse Myelitis LETM is a specific pattern of myelitis wherein at least three continuous vertebral segments are involved. Characteristically, it is a defining feature of neuromyelitis optica NMO. However, it is described in many other etiologies. CASE PRESENTATION: We present a case of 60 year old male who presented with symptoms and signs of regional sympathetic dystrophy RSD followed by symptoms of myelitis. Spinal cord MRI revealed cervical LETM extending to the brainstem...
January 21, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28104256/severe-structural-and-functional-visual-system-damage-leads-to-profound-loss-of-vision-related-quality-of-life-in-patients-with-neuromyelitis-optica-spectrum-disorders
#8
Felix Schmidt, Hanna Zimmermann, Janine Mikolajczak, Frederike C Oertel, Florence Pache, Maria Weinhold, Johann Schinzel, Judith Bellmann-Strobl, Klemens Ruprecht, Friedemann Paul, Alexander U Brandt
BACKGROUND: Neuromyelitis optica spectrum disorders (NMOSD) are characterized by devastating optic neuritis attacks causing more structural damage and visual impairment than in multiple sclerosis (MS). The objective of this study was to compare vision-related quality of life in NMOSD and MS patients and correlate it to structural retinal damage and visual function. METHODS: Thirty-one NMOSD and 31 matched MS patients were included. Vision-related quality of life was assessed with the 39-item National Eye Institute Visual Function Questionnaire (NEI-VFQ)...
January 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28104255/nmosd-triggered-by-yellow-fever-vaccination-an-unusual-clinical-presentation-with-segmental-painful-erythema
#9
F Schöberl, E Csanadi, O Eren, M Dieterich, T Kümpfel
Neuromyelitis Optica Spectrum Disorder (NMOSD) is an immune-mediated disease of the central nervous system with the presence of aquaporin 4-antibodies (AQP4-abs) in most cases. We describe a patient who developed NMOSD after a yellow fever vaccination. He presented to us with an unusual painful erythema Th7-9 triggered by touch in the respective skin area due to a cervical spinal cord lesion affecting the dorsolateral parts of C6/7. To our knowledge, this is the first case of NMOSD with such a clinical presentation expanding the clinical spectrum of NMOSD...
January 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28100408/increased-cerebrospinal-fluid-progranulin-correlates-with-interleukin-6-in-the-acute-phase-of-neuromyelitis-optica-spectrum-disorder
#10
Akio Kimura, Masao Takemura, Kuniaki Saito, Ginette Serrero, Nobuaki Yoshikura, Yuichi Hayashi, Takashi Inuzuka
We examined progranulin (PGRN) levels in cerebrospinal fluid (CSF) samples during the acute phase in 15 patients with neuromyelitis optica spectrum disorders (NMOSD) and compared the results with those from 17 patients with multiple sclerosis (MS), 30 patients with other inflammatory neurological diseases (OIND), and 20 non-inflammatory controls (NIC). CSF PGRN levels of NMOSD patients were significantly higher than those of MS patients and NICs. These levels correlated with CSF interleukin-6 levels, CSF cell counts, CSF protein levels, improvements in the Expanded Disability Status Scale score, and affected total spinal cord lesion length in the NMOSD patients...
January 12, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28080220/predictors-of-response-to-first-line-immunosuppressive-therapy-in-neuromyelitis-optica-spectrum-disorders
#11
Su-Hyun Kim, Jae-Won Hyun, AeRan Joung, Eun Young Park, Jungnam Joo, Ho Jin Kim
BACKGROUND: Azathioprine (AZA) and mycophenolate mofetil (MMF) are the most commonly used first-line therapies for patients with neuromyelitis optica spectrum disorders (NMOSD). However, some patients experience a relapse following AZA or MMF treatment. OBJECTIVES: To identify factors that predict a response to AZA or MMF in NMOSD. METHODS: We retrospectively evaluated medical records from 116 patients who were initially treated with AZA or MMF for at least 6 months...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28079804/aquaporin-4-positive-neuromyelitis-optica-spectrum-disorders-secondary-to-thrombopenic-purpura-a-case-report
#12
Ying Wang, Qiaoyun Gong, Mingqin Zhu, Chao Lu, Li Sun, Jiachun Feng, Hongliang Zhang
RATIONALE: Neuromyelitis optica spectrum disorders (NMOSD) is considered as an immune-mediated disorder in the central nervous system (CNS). Numerous autoimmune diseases are frequently complicated with NMOSD and distinct clinical characteristics are noted in NMOSD patients with other autoimmune diseases. However, to our best knowledge, co-occurrence of NMOSD and thrombopenic purpura is rarely identified. PATIENT CONCERNS: We presented a rare case of a 72-year-old female with 6-year history of thrombopenic purpura, and 1-month history of blurred vision as well as chest zonethesia...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28068933/screening-for-onconeural-antibodies-in-neuromyelitis-optica-spectrum-disorders
#13
Benjamin Berger, Tilman Hottenrott, Sebastian Rauer, Oliver Stich
BACKGROUND: Some so-called "non-classical" paraneoplastic neurological syndromes (PNS), namely optic neuritis and myelitis, clinically overlap with neuromyelitis optica spectrum disorders (NMOSD), and conversely, in cancer-associated NMOSD, a paraneoplastic etiology has been suggested in rare cases. Therefore, we retrospectively investigated the prevalence of onconeural antibodies, which are highly predictive for a paraneoplastic etiology, and the prevalence of malignancies in NMOSD patients...
January 10, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28067584/short-segment-myelitis-as-a-first-manifestation-of-neuromyelitis-optica-spectrum-disorders
#14
So-Young Huh, Su-Hyun Kim, Jae-Won Hyun, In Hye Jeong, Min Su Park, Sang-Hyun Lee, Ho Jin Kim
BACKGROUND: Some patients with neuromyelitis optica spectrum disorders (NMOSD) present with spinal cord lesions extending fewer than three vertebral segments (short transverse myelitis, STM), hindering an early diagnosis. OBJECTIVE: We investigated the frequency and imaging characteristics of STM lesions in patients presenting with myelitis as an initial manifestation of NMOSD. METHODS: Patients seen at three referral hospitals in Korea between June 2005 and March 2015 who met the following inclusion criteria were recruited for review: seropositivity for aquaporin-4 antibody, initial presentation with myelitis and spinal cord magnetic resonance imaging (MRI) performed within 1 month of initial myelitis onset...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28058965/clinical-characteristics-of-late-onset-neuromyelitis-optica-spectrum-disorder-a-multicenter-retrospective-study-in-korea
#15
Jin Myoung Seok, Hye-Jin Cho, Suk-Won Ahn, Eun Bin Cho, Min Su Park, In-Soo Joo, Ha Young Shin, Sun-Young Kim, Byung-Jo Kim, Jong Kuk Kim, Joong-Yang Cho, So-Young Huh, Ohyun Kwon, Kwang-Ho Lee, Byoung Joon Kim, Ju-Hong Min
BACKGROUND: There are currently few studies regarding late-onset neuromyelitis optica spectrum disorder (LO-NMOSD). OBJECTIVE: We aimed to describe the characteristic features of patients with LO-NMOSD in Korea. METHODS: Anti-aquaporin-4 antibody-positive patients with neuromyelitis optica spectrum disorder (NMOSD) from nine tertiary hospitals were reviewed retrospectively. The patients were divided into two groups based on age of onset: LO-NMOSD (⩾50 years of age at onset) versus early-onset neuromyelitis optica spectrum disorder (EO-NMOSD) (<50 years of age at onset)...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28053819/thalamic-atrophy-contributes-to-low-slow-wave-sleep-in-neuromyelitis-optica-spectrum-disorder
#16
Lei Su, Yujuan Han, Rong Xue, Kristofer Wood, Fu-Dong Shi, Yaou Liu, Ying Fu
Slow wave sleep abnormality has been reported in neuromyelitis optica spectrum disorder (NMOSD), but mechanism for such abnormality is unknown. To determine the structural defects in the brain that account for the decrease of slow wave sleep in NMOSD patients. Thirty-three NMOSD patients and 18 matched healthy controls (HC) were enrolled. Polysomnography was used to monitor slow wave sleep and three-dimensional T1-weighted MRIs were obtained to assess the alterations of grey matter volume. The percentage of deep slow wave sleep decreased in 93% NMOSD patients...
December 2016: Aging and Disease
https://www.readbyqxmd.com/read/28017256/treatment-of-neuromyelitis-optica-and-neuromyelitis-optica-spectrum-disorders-with-rituximab-using-a-maintenance-treatment-regimen-and-close-cd19-b-cell-monitoring-a-six-year-follow-up
#17
M E Evangelopoulos, E Andreadou, G Koutsis, V Koutoulidis, M Anagnostouli, P Katsika, D S Evangelopoulos, I Evdokimidis, C Kilidireas
Neuromyelitis optinca (NMO) represents a serious demyelinating disease of the central nervous system selectively attacking the spinal cord and optic nerve. Early differential diagnosis from multiple sclerosis is of vital importance, as NMO mandates immunosuppressive and not immunomodulatory treatment. Rituximab has been recently introduced as a treatment option for NMO. However, optimal surrogate measures and treatment intervals are still unclear. Five patients (females, mean age 54±10.21years) with NMO and NMO spectrum disorders (NMOSD) were evaluated with respect to disability and relapse rate...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28017203/pregnancy-in-neuromyelitis-optica-spectrum-disorder-a-multicenter-study-from-south-china
#18
Yanlu Huang, Yuge Wang, Yifan Zhou, Qiao Huang, Xiaobo Sun, Chen Chen, Ling Fang, Youming Long, Hui Yang, Honghao Wang, Caixia Li, Zhengqi Lu, Xueqiang Hu, Allan G Kermode, Wei Qiu
OBJECTIVE: This study aimed to assess the effect of pregnancy on the course of neuromyelitis optica spectrum disorder (NMOSD), and the effect of this disease on pregnancy outcomes. METHODS: Consecutive patients with NMOSD were recruited between September 2015 and April 2016 at an outpatient clinic from four referral institutes in South China. Demographic, clinical, and pregnancy data were retrieved by questionnaires to analyze the association between NMOSD and pregnancy, as well as the potential risk factors for relapse...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28017200/the-characteristics-of-spinal-imaging-in-different-types-of-demyelinating-diseases
#19
Chaisak Dumrikarnlert, Sasitorn Siritho, Pimwalai Chulapimphan, Chanon Ngamsombat, Chanjira Satukijchai, Naraporn Prayoonwiwat
BACKGROUND: Transverse myelitis is the common presentation in demyelinating conditions. OBJECTIVE: To determine the characteristics of spinal lesions among each type of demyelinating diseases. METHODS: Medical records and spinal imaging of patients who were [1] older than 18years, [2] had at least one attack of TM, [3] had available spinal MRI data and [4] were tested for aquaporin-4 antibody were included. RESULTS: One hundred and fifty-eight patients were eligible (27 clinically isolated syndrome [CIS], 38 MS, 55 seropositive neuromyelitis optica spectrum disorders [NMOSD], 9 seronegative NMOSD, and 29 idiopathic transverse myelitis [IDD-TM])...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28009104/deep-gray-matter-atrophy-in-neuromyelitis-optica-spectrum-disorder-and-multiple-sclerosis
#20
J-W Hyun, G Park, K Kwak, H-J Jo, A Joung, J-H Kim, S H Lee, S Kim, J-M Lee, S-H Kim, H J Kim
BACKGROUND AND PURPOSE: We investigated changes in deep gray matter (DGM) volume and its relationship to cognition and clinical factors in a large cohort of patients with neuromyelitis optica spectrum disorder (NMOSD) and compared them with results from multiple sclerosis (MS). METHODS: Brain magnetic resonance imaging (3 Tesla) and clinical data from 91 patients with NMOSD, 52 patients with MS and 44 healthy controls (HCs) were prospectively evaluated. Differences in DGM volumes were compared among groups...
February 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
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