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demyelinating diseases

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https://www.readbyqxmd.com/read/29679574/evidence-of-demyelination-in-mild-cognitive-impairment-and-dementia-using-a-direct-and-specific-magnetic-resonance-imaging-measure-of-myelin-content
#1
Mustapha Bouhrara, David A Reiter, Christopher M Bergeron, Linda M Zukley, Luigi Ferrucci, Susan M Resnick, Richard G Spencer
INTRODUCTION: We investigated brain demyelination in aging, mild cognitive impairment (MCI), and dementia using magnetic resonance imaging of myelin. METHODS: Brains of young and old controls and old subjects with MCI, Alzheimer's disease, or vascular dementia were scanned using our recently developed myelin water fraction (MWF) mapping technique, which provides greatly improved accuracy over previous comparable methods. Maps of MWF, a direct and specific myelin measure, and relaxation times and magnetization transfer ratio, indirect and nonspecific measures, were constructed...
April 18, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29676479/sulfatide-isoform-pattern-in-cerebrospinal-fluid-discriminates-progressive-ms-from-relapsing-remitting-ms
#2
Lenka Novakova, Avadhesh Kumar Singh, Clas Malmeström, Henrik Zetterberg, Marcus Ståhlman, Markus Axelsson, Martin Adiels, Jan Borén, Jan Lycke, Susanna L Cardell, Maria Blomqvist
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS). Several biomarkers including proteins and lipids have been reported in MS cerebrospinal fluid (CSF), reflecting different aspects of the pathophysiology particularly of relapsing-remitting MS (RRMS). Sulfatide, abundant in the myelin sheath and a proposed target for autoimmune attack in MS, has been reported altered in MS CSF. Here, we investigated the potential of CSF sulfatide and its isoforms as biomarkers in MS...
April 20, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29673575/classification-and-diagnostic-criteria-for-demyelinating-diseases-of-the-central-nervous-system-where-do-we-stand-today
#3
REVIEW
G Mathey, M Michaud, S Pittion-Vouyovitch, M Debouverie
The diagnosis of multiple sclerosis (MS) and other demyelinating diseases of the central nervous system is challenging, and although the currently available biological and imaging tools offer considerable support to physicians, these tools often fail to provide a simple and final answer at the time of a first event. Thus, sets of diagnostic criteria have been published and tested on patient cohorts, and are now used in clinical trials and in daily clinical practice. These criteria have evolved over time to take into account physicians' and patients' needs, along with emerging paraclinical tests...
April 16, 2018: Revue Neurologique
https://www.readbyqxmd.com/read/29673573/atypical-inflammatory-demyelinating-lesions-and-atypical-multiple-sclerosis
#4
REVIEW
X Ayrignac, C Carra-Dallière, P Labauge
Atypical idiopathic inflammatory demyelinating disorders (IIDDs) of the brain have long been known to be disorders closely related to multiple sclerosis (MS), despite having distinctive clinical and radiological characteristics. Originally, they mostly corresponded to acute-onset variants of MS that classically had poor prognoses, such as Baló's concentric sclerosis, Marburg variant of MS and Schilder's disease, and their relationship with MS was based on their shared pathological findings and the co-occurrence of these variants in patients with typical MS...
April 16, 2018: Revue Neurologique
https://www.readbyqxmd.com/read/29670565/the-efficacy-of-psychological-interventions-for-managing-fatigue-in-people-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#5
Aung Zaw Zaw Phyo, Thibaut Demaneuf, Alysha M De Livera, George A Jelinek, Chelsea R Brown, Claudia H Marck, Sandra L Neate, Keryn L Taylor, Taylor Mills, Emily O'Kearney, Amalia Karahalios, Tracey J Weiland
Background: Multiple sclerosis (MS) is a complex, demyelinating disease of the central nervous system. Fatigue is commonly reported by people with MS (PwMS). MS-related fatigue severely affects daily activities, employment, socioeconomic status, and quality of life. Objective: We conducted this systematic review and meta-analysis to determine whether psychological interventions are effective in managing fatigue in PwMS. Data sources: We performed systematic searches of Medline, EMBASE, PsycINFO, and CINAHL to identify relevant articles published from database inception to April 5, 2017...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29670463/combination-treatment-of-c16-peptide-and-angiopoietin-1-alleviates-neuromyelitis-optica-in-an-experimental-model
#6
Yuanyuan Zhang, Kewei Tian, Hong Jiang, Beibei Wang, Shu Han
Neuromyelitis optica (NMO) is an autoimmune inflammatory demyelinating disease that mainly affects the spinal cord and optic nerve, causing blindness and paralysis in some individuals. Moreover, NMO may cause secondary complement-dependent cytotoxicity (CDC), leading to oligodendrocyte and neuronal damage. In this study, a rodent NMO model, showing typical NMO pathogenesis, was induced with NMO-IgG from patient serum and human complement. We then tested whether the combination of C16, an α v β 3 integrin-binding peptide, and angiopoietin-1 (Ang1), a member of the endothelial growth factor family, could alleviate NMO in the model...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29667130/beneficial-effects-of-the-calcium-channel-blocker-ctk-01512-2-in-a-mouse-model-of-multiple-sclerosis
#7
Rodrigo B M Silva, Samuel Greggio, Gianina T Venturin, Jaderson C da Costa, Marcus V Gomez, Maria M Campos
Voltage-gated calcium channels (VGCCs) play a critical role in neuroinflammatory diseases, such as multiple sclerosis (MS). CTK 01512-2 is a recombinant version of the peptide Phα1β derived from the spider Phoneutria nigriventer, which inhibits N-type VGCC/TRPA1-mediated calcium influx. We investigated the effects of this molecule in the mouse model of experimental autoimmune encephalomyelitis (EAE). The effects of CTK 01512-2 were compared to those displayed by ziconotide-a selective N-type VGCC blocker clinically used for chronic pain-and fingolimod-a drug employed for MS treatment...
April 17, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29665426/human-papillomavirus-vaccine-and-demyelinating-diseases-a-systematic-review-and-meta-analysis
#8
Julie Mouchet, Francesco Salvo, Emanuel Raschi, Elisabetta Poluzzi, Ippazio Cosimo Antonazzo, Fabrizio De Ponti, Bernard Bégaud
BACKGROUND: Approved in 2006, human papillomavirus (HPV) vaccines were initially targeted for girls aged 9-14 years. Although the safety of these vaccines has been monitored through post-licensure surveillance programmes, cases of neurological events have been reported worldwide. PURPOSE: The present study aimed to assess the risk of developing demyelination after HPV immunization by meta-analysing risk estimates from pharmacoepidemiologic studies. DATA SOURCES: A systematic review was conducted in Medline, Embase, ISI Web of Science and the Cochrane Library from inception to 10 May 2017, without language restriction...
April 14, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29662531/cystic-brain-metastases-in-alk-rearranged-non-small-cell-lung-cancer
#9
REVIEW
Guilherme Nader Marta, Renata Rodrigues da Cunha Colombo Bonadio, Renata Eiras Martins, Henrique Bortot Zuppani, Gilberto de Castro
The central nervous system (CNS) is a common site of disease progression in patients with non-small-cell lung cancer (NSCLC) with anaplastic lymphoma kinase (ALK)-rearrangement treated with crizotinib. Cystic brain metastases (CBM) have been recently identified as one possible variant of this disease. An illustrative case report is presented along with a literature review performed in order to track relevant papers about CBM in ALK-rearranged NSCLC, including possible pathophysiology, differential diagnosis and treatment options for this condition...
2018: Ecancermedicalscience
https://www.readbyqxmd.com/read/29662171/fatal-demyelinating-disease-is-induced-by-monocyte-derived-macrophages-in-the-absence-of-tgf-%C3%AE-signaling
#10
Harald Lund, Melanie Pieber, Roham Parsa, David Grommisch, Ewoud Ewing, Lara Kular, Jinming Han, Keying Zhu, Jik Nijssen, Eva Hedlund, Maria Needhamsen, Sabrina Ruhrmann, André Ortlieb Guerreiro-Cacais, Rasmus Berglund, Maria J Forteza, Daniel F J Ketelhuth, Oleg Butovsky, Maja Jagodic, Xing-Mei Zhang, Robert A Harris
The cytokine transforming growth factor-β (TGF-β) regulates the development and homeostasis of several tissue-resident macrophage populations, including microglia. TGF-β is not critical for microglia survival but is required for the maintenance of the microglia-specific homeostatic gene signature1,2 . Under defined host conditions, circulating monocytes can compete for the microglial niche and give rise to long-lived monocyte-derived macrophages residing in the central nervous system (CNS)3-5 . Whether monocytes require TGF-β for colonization of the microglial niche and maintenance of CNS integrity is unknown...
April 16, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29661538/an-unusual-case-of-anti-mog-cns-demyelination-with-concomitant-mild-anti-nmdar-encephalitis
#11
Jiajia Zhou, Winwen Tan, Suyin Elaine Tan, Jing Hu, Zhongqin Chen, Kang Wang
We report the case of a patient who presented with progressive unsteadiness and narcoleptic attacks followed by behavioral change and psychosis, without visual disturbances or seizures. MRI revealed multiple areas of fluid attenuation inversion recovery (FLAIR) high-intensity lesions involving the cerebellum, brainstem, thalamus and third ventricular peri-ependymal region consistent with demyelination. Both the serum myelin oligodendrocyte glycoprotein-antibodies (MOG-Abs) and cerebral spinal fluid (CSF) anti-N-methyl-d-as-partate receptor (NMDAR) antibodies were positive using transfected cell based assays...
April 6, 2018: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29656742/pathogenesis-of-progressive-multifocal-leukoencephalopathy-and-risks-associated-with-treatments-for-multiple-sclerosis-a-decade-of-lessons-learned
#12
REVIEW
Eugene O Major, Tarek A Yousry, David B Clifford
Progressive multifocal leukoencephalopathy (PML) is a rare, devastating demyelinating disease of the CNS caused by the JC virus (JCV) that occurs in patients with compromised immune systems. Detection of PML in systemically immunocompetent patients with multiple sclerosis treated with natalizumab points to a role for this drug in the pathophysiology of PML. Emerging knowledge of the cellular and molecular biology of JCV infection and the pathogenesis of PML-including interplay of this common virus with the human immune system and features of natalizumab that might contribute to PML pathogenesis-provides new opportunities to monitor viral status and predict risk of JCV-associated disease...
May 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29648443/shedding-light-on-the-molecular-pathology-of-amyloid-plaques-in-transgenic-alzheimer-s-disease-mice-using-multimodal-maldi-imaging-mass-spectrometry
#13
Ibrahim Kaya, Henrik Zetterberg, Kaj Blennow, Jörg Hanrieder
Senile plaques formed by aggregated amyloid β peptides are one of the major pathological hallmarks of Alzheimer's disease (AD) which have been suggested to be the primary influence triggering the AD pathogenesis and the rest of the disease process. However, neurotoxic Aβ aggregation and progression are associated with a wide range of enigmatic biochemical, biophysical and genetic processes. MALDI imaging mass spectrometry (IMS) is a label-free method to elucidate the spatial distribution patterns of intact molecules in biological tissue sections...
April 12, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29629942/paediatric-multiple-sclerosis-and-other-acute-demyelinating-diseases
#14
Kevin Rostásy, Barbara Bajer-Kornek
PURPOSE OF REVIEW: Neuroimmunological diseases encompass a wide spectrum of diseases in children. Apart from the discovery of autoantibodies affecting primarily grey matter structures and the improved clinical characterization of rare entities such as N-methyl D-aspartate receptor-R- encephalitis, important strides have also been made in autoimmune-mediated white matter diseases, including paediatric multiple sclerosis (pedMS) and other acute demyelinating syndromes (ADS) often associated with antibodies (abs) against myelin-oligodendrocyte-glycoprotein (MOG)...
April 7, 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29629601/occipital-neuralgia-associates-with-high-cervical-spinal-cord-lesions-in-idiopathic-inflammatory-demyelinating-disease
#15
Narayan R Kissoon, James C Watson, Christopher J Boes, Orhun H Kantarci
Background The association of trigeminal neuralgia with pontine lesions has been well documented in multiple sclerosis, and we tested the hypothesis that occipital neuralgia in multiple sclerosis is associated with high cervical spinal cord lesions. Methods We retrospectively reviewed the records of 29 patients diagnosed with both occipital neuralgia and demyelinating disease by a neurologist from January 2001 to December 2014. We collected data on demographics, clinical findings, presence of C2-3 demyelinating lesions, and treatment responses...
January 1, 2018: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29629528/prevalence-of-multiple-sclerosis-in-a-turkish-city-bordering-an-iron-and-steel-factory
#16
Ülkü Türk Börü, Adnan Burak Bilgiç, Cansu Köseoğlu Toksoy, Abdullah Yasir Yılmaz, Mustafa Tasdemir, Nilay Padir Sensöz, Özgür Öztop Çakmak, Arda Duman, Cem Bölük
BACKGROUND AND PURPOSE: Multiple sclerosis (MS) is an autoimmune disease characterized by inflammatory demyelination. Recent studies have shown that long-term exposure to air pollutants (including PM10 particulates) is potentially an environmental risk factor for MS. We aimed to determine the prevalence rates of MS in two cities with different levels of air pollution. METHODS: This door-to-door population-based study was conducted between April 2014 and June 2015...
April 2018: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/29628374/myelination-of-neuronal-cell-bodies-when-myelin-supply-exceeds-axonal-demand
#17
Rafael G Almeida, Simon Pan, Katy L H Cole, Jill M Williamson, Jason J Early, Tim Czopka, Anna Klingseisen, Jonah R Chan, David A Lyons
The correct targeting of myelin is essential for nervous system formation and function. Oligodendrocytes in the CNS myelinate some axons, but not others, and do not myelinate structures including cell bodies and dendrites [1]. Recent studies indicate that extrinsic signals, such as neuronal activity [2, 3] and cell adhesion molecules [4], can bias myelination toward some axons and away from cell bodies and dendrites, indicating that, in vivo, neuronal and axonal cues regulate myelin targeting. In vitro, however, oligodendrocytes have an intrinsic propensity to myelinate [5-7] and can promiscuously wrap inert synthetic structures resembling neuronal processes [8, 9] or cell bodies [4]...
March 31, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29627579/genetic-detection-of-sonic-hedgehog-shh-expression-and-cellular-response-in-the-progression-of-acute-through-chronic-demyelination-and-remyelination
#18
Maria A Sanchez, Genevieve M Sullivan, Regina C Armstrong
Multiple sclerosis is a demyelinating disease in which neurological deficits result from damage to myelin, axons, and neuron cell bodies. Prolonged or repeated episodes of demyelination impair remyelination. We hypothesized that augmenting Sonic hedgehog (Shh) signaling in chronically demyelinated lesions could enhance oligodendrogenesis and remyelination. Shh regulates oligodendrocyte development during postnatal myelination, and maintains adult neural stem cells. We used genetic approaches to detect Shh expression and Shh responding cells in vivo...
April 5, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29627036/nocebo-in-chronic-inflammatory-demyelinating-polyneuropathy-a-systematic-review-and-meta-analysis-of-placebo-controlled-clinical-trials
#19
Panagiotis Zis, Marios Hadjivassiliou, Ptolemaios G Sarrigiannis, Thomas M Jenkins, Dimos-Dimitrios Mitsikostas
INTRODUCTION: Nocebo is very prevalent among neurological disorders, resulting in low adherence and treatment outcome. We sought to examine the adverse events (AE) following placebo administration in placebo-controlled randomized clinical trials (RCTs) for chronic inflammatory demyelinating polyneuropathy (CIDP). METHODS: After a systematic literature search for RCTs for CIDP pharmacotherapy treatments, we assessed the number of AE in the placebo groups and the number discontinuations because of placebo intolerance...
May 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29626178/unique-clinical-and-neurophysiologic-profile-of-a-cohort-of-children-with-cmtx3
#20
Manoj Kanhangad, Kayla Cornett, Megan H Brewer, Garth A Nicholson, Monique M Ryan, Robert L Smith, Gopinath M Subramanian, Helen K Young, Stephan Züchner, Marina L Kennerson, Joshua Burns, Manoj P Menezes
OBJECTIVE: To describe in detail the clinical profile of Charcot-Marie-Tooth disease subtype 3 (CMTX3) to aid appropriate genetic testing and rehabilitative therapy. METHODS: We reviewed the clinical and neurophysiologic profile and CMT Pediatric Scale (CMTPedS) assessments of 11 children with CMTX3. RESULTS: Compared with the more common forms of CMT, CMT1A and CMTX, CMTX3 was characterized by early onset with early and progressive hand weakness...
April 6, 2018: Neurology
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