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Autoimmune neurology

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https://www.readbyqxmd.com/read/28723981/intestinal-microbiota-in-digestive-diseases
#1
Maria do Carmo Friche Passos, Joaquim Prado Moraes-Filho
BACKGROUND: In recent years, especially after the development of sophisticated metagenomic studies, research on the intestinal microbiota has increased, radically transforming our knowledge about the microbiome and its association with health maintenance and disease development in humans. Increasing evidence has shown that a permanent alteration in microbiota composition or function (dysbiosis) can alter immune responses, metabolism, intestinal permeability, and digestive motility, thereby promoting a proinflammatory state...
July 6, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28723914/safety-and-pharmacodynamics-of-dalazatide-a-kv1-3-channel-inhibitor-in-the-treatment-of-plaque-psoriasis-a-randomized-phase-1b-trial
#2
Eric J Tarcha, Chelsea M Olsen, Peter Probst, David Peckham, Ernesto J Muñoz-Elías, James G Kruger, Shawn P Iadonato
BACKGROUND: Dalazatide is a specific inhibitor of the Kv1.3 potassium channel. The expression and function of Kv1.3 channels are required for the function of chronically activated memory T cells, which have been shown to be key mediators of autoimmune diseases, including psoriasis. OBJECTIVE: The primary objective was to evaluate the safety of repeat doses of dalazatide in adult patients with mild-to-moderate plaque psoriasis. Secondary objectives were to evaluate clinical proof of concept and the effects of dalazatide on mediators of inflammation in the blood and on chronically activated memory T cell populations...
2017: PloS One
https://www.readbyqxmd.com/read/28720552/autoimmune-limbic-encephalitis-associated-with-type-1-diabetes-mellitus
#3
Onur Akın, Aylin Kılınç Uğurlu, Emine Demet Akbaş, Esra Döğer, Yılmaz Akbaş, Aysun Bideci, Özge Yüce, Kıvılcım Gücüyener, Orhun Çamurdan, Neşe Karabacak, Peyami Cinaz
Glutamic acid decarboxylase (GAD) antibodies can participate in the pathogenesis of both type 1 diabetes mellitus (T1DM) and limbic encephalitis (LE). However, an association between T1DM and LE is very rare. We report a patient who was diagnosed with type 1 diabetes mellitus six months after encountering limbic encephalitis. A 16-year-old boy was admitted with behavioral changes, confusion, and headache. He was diagnosed with LE. Anti-GAD levels were high. He was treated with pulse methylprednisolone. During the steroid treatment, neurological symptoms improved but hyperglycemia occurred...
July 17, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28720215/autoimmune-meningitis-and-encephalitis-in-adult-onset-still-disease-case-report
#4
Bożek Milena, Konopko Magdalena, Wierzba-Bobrowicz Teresa, Witkowski Grzegorz, Makowicz Grzegorz, Sienkiewicz-Jarosz Halina
INTRODUCTION: Adult-onset Still disease (AOSD) is a rare systemic inflammatory disease of unknown cause. Its symptoms usually include persistent fever, fugitive salmon-colored rash, arthritis, sore throat (not specific), but it may also lead to internal organs' involvement, which presents with enlargement of the liver and spleen, swollen lymph nodes, carditis or pleuritis - potentially life-threatening complications. In rare cases, AOSD can cause aseptic meningitis or/and encephalitis...
July 8, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28719506/zika-virus-associated-ocular-and-neurologic-disorders-the-emergence-of-new-evidence
#5
Fatih Şahiner, Ali Korhan Siğ, Ümit Savaşçi, Kemal Tekin, Fahrettin Akay
BACKGROUND: It has been approximately 70 years since the discovery of the Zika virus (ZIKV). It had been established that the virus causes mild infections, and is confined to Africa and Asia; however, major changes in the clinical and epidemiologic patterns of ZIKV infection have occurred in recent years. The virus has attracted intense interest because of the possible association of several autoimmune and neurodevelopmental disorders. METHODS: We present a summary of the articles that attempt to explain the ZIKV unknowns, and strengthen the association with some disorders that are thought to be related to ZIKV, by describing the discovery milestones from the initial identification of the virus to the present day...
July 13, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28718500/neurofilament-light-as-an-immune-target-for-pathogenic-antibodies
#6
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. Immunisation 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, while 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/28716651/significance-of-a-to-i-rna-editing-of-transcripts-modulating-pharmacokinetics-and-pharmacodynamics
#7
REVIEW
Masataka Nakano, Miki Nakajima
RNA editing is a post-transcriptional process that alters the nucleotide sequence of RNA transcripts to generate transcriptome diversity. Among the various types of RNA editing, adenosine-to-inosine (A-to-I) RNA editing is the most frequent type of RNA editing in mammals. Adenosine deaminases acting on RNA (ADAR) enzymes, ADAR1 and ADAR2, convert adenosines in double-stranded RNA structures into inosines by hydrolytic deamination. Inosine forms a base pair with cytidine as if it were guanosine; therefore, the conversion may affect the amino acid sequence, splicing, microRNA targeting, and miRNA maturation...
July 14, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28714393/interrelationships-between-gut-microbiota-and-host-paradigms-role-in-neurodegenerative-diseases-and-future-prospects
#8
Javier Caballero- Villarraso, Alberto Galvan, Begoña M Escribano, Isaac Túnez
Advances in the knowledge of the microbiota and concepts related to it have triggered a wake-up call in biomedicine. The development in various scientific areas has enabled a better and broader approach to everything concerning the set of families of microorganisms that coexist with an individual and are able to function as one more organ in its body. Among the aforementioned scientific areas, those worth mentioning are the advances/progress in biotechnological resources and, in particular, molecular biology and related areas...
July 14, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28711952/polymorphic-variants-of-antioxidative-defense-enzymes-and-their-gene-gene-epistatic-interactions-in-systemic-lupus-erythematode-patients
#9
Tatjana Jevtovic Stoimenov, Milena Despotovic, Sonja Stojanovic, Jelena Basic, Dušica Pavlovic
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease in which pathogenesis oxidative stress has an important role. Single nucleotide polymorphisms (SNPs) in the genes that code enzymes involved in the antioxidative defense are possible factors that are responsible for their decreased activity of antioxidative defense enzymes. Thus, the aim of the study was to examine association of SNPs in these genes with SLE. A total of176 subjects were involved in this study. CAT A-21T (rs7943316), CAT C-262T (rs1001139) and manganese SOD (MnSOD) Ala16Val (rs4880) SNPs were determined using PCR-RFLP method, while GSTT1 and GSTM1 were determined using multiplex PCR...
July 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28710237/focal-neurological-presentation-in-hashimoto-s-encephalopathy-mimicking-a-vascular-occlusion-of-the-middle-cerebral-artery
#10
Ahmad Alazzeh, Sarah Jaroudi, Matthew Gooch, Alan N Peiris
Hashimoto's encephalopathy is a rare form of autoimmune encephalopathy. It is likely an underdiagnosed entity especially in the setting of focal neurological defects. We report a case of a 49-year-old man who presented with "strange behavior"of a day's duration. Examination was significant only for lethargy, poor attention span and agitation. Routine labs revealed leucocytosis. Head CT scan was unremarkable. Lumbar puncture showed high white blood cells with lymphocytosis and elevated protein level. The patient was empirically treated for meningitis without improvement...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28707358/suppressed-oligodendrocyte-steroidogenesis-in-multiple-sclerosis-implications-for-regulation-of-neuroinflammation
#11
Roobina Boghozian, Brienne A McKenzie, Leina B Saito, Ninad Mehta, William G Branton, JianQiang Lu, Glen B Baker, Farshid Noorbakhsh, Christopher Power
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS). Neurosteroids are reported to exert anti-inflammatory effects in several neurological disorders. We investigated the expression and actions of the neurosteroid, dehydroepiandrosterone (DHEA), and its more stable 3β-sulphated ester, DHEA-S, in MS and associated experimental models. CNS tissues from patients with MS and animals with experimental autoimmune encephalomyelitis (EAE) displayed reduced DHEA concentrations, accompanied by diminished expression of the DHEA-synthesizing enzyme CYP17A1 in oligodendrocytes (ODCs), in association with increased expression of inflammatory genes including interferon (IFN)-γ and interleukin (IL)-1β...
July 14, 2017: Glia
https://www.readbyqxmd.com/read/28704576/psychosis-an-autoimmune-disease
#12
REVIEW
Adam Aj Al-Diwani, Thomas A Pollak, Sarosh R Irani, Belinda R Lennox
Psychotic disorders are common and disabling. Overlaps in clinical course in addition to epidemiological and genetic associations raise the possibility that autoimmune mechanisms may underlie some psychoses, potentially offering novel therapeutic approaches. Several immune loci including the major histocompatibility complex and B-cell markers CD19 and CD20 achieve genome-wide significance in schizophrenia. Emerging evidence suggests a potential role via neurodevelopment in addition to classical immune pathways...
July 13, 2017: Immunology
https://www.readbyqxmd.com/read/28702477/the-case-for-autoimmune-neurology
#13
EDITORIAL
Josep Dalmau
No abstract text is available yet for this article.
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28698711/anti-n-methyl-d-aspartate-receptor-encephalitis-a-severe-potentially-reversible-autoimmune-encephalitis
#14
REVIEW
Cai-Yun Liu, Jie Zhu, Xiang-Yu Zheng, Chi Ma, Xu Wang
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is potentially lethal, but it is also a treatable autoimmune disorder characterized by prominent psychiatric and neurologic symptoms. It is often accompanied with teratoma or other neoplasm, especially in female patients. Anti-NMDAR antibodies in cerebrospinal fluid (CSF) and serum are characteristic features of the disease, thereby suggesting a pathogenic role in the disease. Here, we summarize recent studies that have clearly documented that both clinical manifestations and the antibodies may contribute to early diagnosis and multidisciplinary care...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28696309/influenza-infection-triggers-disease-in-a-genetic-model-of-experimental-autoimmune-encephalomyelitis
#15
Stephen Blackmore, Jessica Hernandez, Michal Juda, Emily Ryder, Gregory G Freund, Rodney W Johnson, Andrew J Steelman
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system. Most MS patients experience periods of symptom exacerbation (relapses) followed by periods of partial recovery (remission). Interestingly, upper-respiratory viral infections increase the risk for relapse. Here, we used an autoimmune-prone T-cell receptor transgenic mouse (2D2) and a mouse-adapted human influenza virus to test the hypothesis that upper-respiratory viral infection can cause glial activation, promote immune cell trafficking to the CNS, and trigger disease...
July 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28689294/cerebellar-disease-associated-with-anti-glutamic-acid-decarboxylase-antibodies-review
#16
REVIEW
José Fidel Baizabal-Carvallo, Marlene Alonso-Juarez
Several neurological syndromes have been recognized associated to GAD antibodies. Among those disorders, cerebellar ataxia (CA) is one of the most common, along with stiff-person syndrome. Patients with GAD associated CA present with a progressive pancerebellar syndrome, with a subacute or chronic evolution, along with other neurological manifestations such as stiffness, oculomotor dysfunction, epilepsy, and cognitive dysfunction. These symptoms may be preceded by the so-called "brainstem attacks", where manifestations consistent with transient dysfunction of the brainstem may be observed...
July 8, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28687233/overview-of-immune-abnormalities-in-lysosomal-storage-disorders
#17
REVIEW
Donato Rigante, Clelia Cipolla, Umberto Basile, Francesca Gulli, Maria Cristina Savastano
The critical relevance of the lysosomal compartment for normal cellular function can be proved by numbering the clinical phenotypes that arise in lysosomal storage disorders (LSDs), a group of around 70 different monogenic autosomal or X-linked syndromes, caused by specific lysosomal enzyme deficiencies: all LSDs are characterized by progressive accumulation of heterogeneous biologic materials in the lysosomes of various parts of the body such as viscera, skeleton, skin, heart, and central nervous system. At least a fraction of LSDs has been associated with mixed abnormalities involving the immune system, while some patients with LSDs may result more prone to autoimmune phenomena...
July 4, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28680725/glioblastoma-multiforme-presenting-with-an-open-ring-pattern-of-enhancement-on-mr-imaging
#18
Merritt D Kinon, Aleka Scoco, Joaquim M Farinhas, Andrew Kobets, Karen M Weidenheim, Reza Yassari, Patrick A Lasala, Jerome Graber
BACKGROUND: Intracerebral ring enhancing lesions can be the presentation of a variety of pathologies, including neoplasia, inflammation, and autoimmune demyelination. Use of a precise diagnostic algorithm is imperative in correctly treating these lesions and minimizing potential adverse treatment effects. CASE DESCRIPTION: A 55-year-old patient presented to the hospital with complaints of a post-concussive syndrome and a non-focal neurologic exam. Imaging revealed a lesion with an open ring enhancement pattern, minimal surrounding vasogenic edema, and minimal mass effect...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28678763/neuroprotective-effect-of-a-novel-gastrodin-derivative-against-ischemic-brain-injury-involvement-of-peroxiredoxin-and-tlr4-signaling-inhibition
#19
Xiao-Na Mao, Hong-Jing Zhou, Xiao-Jia Yang, Li-Xue Zhao, Xi Kuang, Chu Chen, Dong-Ling Liu, Jun-Rong Du
The inhibition of extracellular inflammatory peroxiredoxin (Prx) signaling appears to be a potential therapeutic strategy for neuroinflammatory injury after acute ischemic stroke. Gastrodin (Gas) is a phenolic glycoside that is used for the treatment of cerebral ischemia, accompanied by regulation of the autoimmune inflammatory response. The present study investigated the neuroprotective effects of Gas and its derivative, Gas-D, with a focus on the potential mechanism associated with inflammatory Prx-Toll-like receptor 4 (TLR4) signaling...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28677172/neurological-and-psychiatric-associations-in-bullous-pemphigoid-more-than-skin-deep
#20
REVIEW
Anna-Kaisa Försti, Laura Huilaja, Enno Schmidt, Kaisa Tasanen
In elderly patients, bullous pemphigoid (BP) is associated with several comorbidities; the strongest association occurs between BP and neurological diseases. Different types of dementia, Parkinson's disease, cerebrovascular disorders and epilepsy all have a significant association with BP but patients with multiple sclerosis have the highest risk of BP. An existing neurological disorder appears to increase the risk for subsequent BP, but an increased risk for developing some neurological diseases has also been reported following BP diagnosis...
July 4, 2017: Experimental Dermatology
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