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https://www.readbyqxmd.com/read/28527274/caracter%C3%A3-sticas-de-la-estructura-molecular-de-las-prote%C3%A3-nas-e-del-virus-del-zika-y-e1-del-virus-de-la-rub%C3%A3-ola-y-posibles-implicaciones-en-el-neurotropismo-y-en-las-alteraciones-del-sistema-nervioso
#1
Luis Alberto Gómez, Gladis Montoya, Hernán Mauricio Rivera, Juan Carlos Hernández
Introducción. El virus del Zika (ZIKV) es un flavivirus con envoltura, transmitido a los seres humanos principalmente por el vector Aedes aegypti. La infección por ZIKV se ha asociado con un gran neurotropismo y con efectos neuropáticos, como el síndrome de Guillain-Barré en el adulto y la microcefalia fetal y posnatal, así como con un síndrome de infección congénita similar al producido por el virus de la rubéola (RV).Objetivo. Comparar las estructuras moleculares de la proteína de envoltura E del virus del Zika (E-ZIKV) y de la E1 del virus de la rubéola (E1-RV), y plantear posibles implicaciones en el neurotropismo y en las alteraciones del sistema nervioso asociadas con el ZIKV...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28503425/neuroprotective-effects-of-gypenosides-in-experimental-autoimmune-optic-neuritis
#2
Hong-Kan Zhang, Yuan Ye, Zhen-Ni Zhao, Kai-Jun Li, Yi Du, Qiu-Ming Hu, Jian-Feng He
AIM: To determine whether gypenosides have protective effects in experimental autoimmune optic neuritis (EAON). METHODS: Mice were randomly divided into seven groups: control group, model group, three different density gypenosides monotherapy, methylprednisolone monotherapy, combination of gypenosides and methylprednisolone group. The control group was subcutaneously injected with oil emulsion adjuvant and all other groups were subcutaneously immunized with an emulsified mixture of myelin oligodendrocyte glycoprotein (MOG) 35-55 peptide to induce EAON...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28500734/differentiation-of-human-olfactory-bulb-derived-neural-stem-cell-towards-oligodendrocyte-development
#3
H E Marei, Z Shouman, A Althani, N Afifi, A Abd-Elmaksoud, S Lashen, A Hasan, T Caceci, R Rizzi, C Cenciarelli, P Casalbore
In the central nervous system, oligodendrocytes are the glial element in charge of myelin formation. Obtaining an overall presence of oligodendrocyte precursor cells/oligodendrocytes. (OPCs/OLs) in culture from different sources of NSCs is an important research area, because OPCs/OLs may provide a promising therapeutic strategy for diseases affecting myelination of axons. The present study was designed to differentiate human olfactory bulb NSCs (OBNSCs) into OPCs/OLs and using expression profiling (RT-qPCR) gene, immunocytochemistry and specific protein expression to highlight molecular mechanism(s) underlying differentiation of human OBNSCs into OPCs/OLs...
May 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28499993/robust-2d-3d-registration-optimization-for-motion-compensation-during-3d-trus-guided-biopsy-using-learned-prostate-motion-data
#4
Tharindu De Silva, Derek Cool, Jing Yuan, Cesare Romagnoli, Jagath Samarabandu, Aaron Fenster, Aaron Ward
In magnetic resonance (MR)-targeted, 3D transrectal ultrasound (TRUS)-guided biopsy, prostate motion during the procedure increases the needle targeting error and limits the ability to accurately sample MR-suspicious tumour volumes. The robustness of 2D-3D registration methods for prostate motion compensation is impacted by local optima in the search space. In this paper, we analysed prostate motion characteristics and investigated methods to incorporate such knowledge into the registration optimization framework to improve robustness against local optima...
May 10, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28486971/a-role-for-cathepsin-z-in-neuroinflammation-provides-mechanistic-support-for-an-epigenetic-risk-factor-in-multiple-sclerosis
#5
Euan R O Allan, Rhiannon I Campden, Benjamin W Ewanchuk, Pankaj Tailor, Dale R Balce, Neil T McKenna, Catherine J Greene, Amy L Warren, Thomas Reinheckel, Robin M Yates
BACKGROUND: Hypomethylation of the cathepsin Z locus has been proposed as an epigenetic risk factor for multiple sclerosis (MS). Cathepsin Z is a unique lysosomal cysteine cathepsin expressed primarily by antigen presenting cells. While cathepsin Z expression has been associated with neuroinflammatory disorders, a role for cathepsin Z in mediating neuroinflammation has not been previously established. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in both wildtype mice and mice deficient in cathepsin Z...
May 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28477397/etiologies-of-acute-demyelinating-optic-neuritis-an-observational-study-of-110-patients
#6
R Deschamps, A Lecler, C Lamirel, J Aboab, A Gueguen, C Bensa, C Vignal, O Gout
BACKGROUND AND PURPOSE: New criteria for the diagnosis of multiple sclerosis (MS) and discovery of myelin oligodendrocyte glycoprotein (MOG) or aquaporin-4 (AQP4) antibodies (Abs) have changed the management of optic neuritis (ON). Our aim was to specify, in view of these recent advances, the etiologies of acute demyelinating ON for consecutive patients. METHODS: Retrospective database analysis was undertaken of consecutive adult patients with acute ON admitted from 1 December 2014 to 31 January 2016...
May 6, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28471902/recurrent-optic-neuritis-associated-with-mog-antibody-seropositivity
#7
Thashi Chang, Patrick Waters, Mark Woodhall, Angela Vincent
INTRODUCTION: Optic neuritis (ON) can be the first manifestation of autoimmune central nervous system diseases such as multiple sclerosis and neuromyelitis optica, but it can also occur as an isolated monophasic or relapsing disease. A proportion of these patients have antibodies against myelin oligodendrocyte glycoprotein (MOG). We report a case of recurrent ON with MOG antibodies in a South Asian patient. CASE REPORT: A 50-year-old Sri Lankan female with a previous history of 2 episodes of steroid-responsive ON presented with a 20/120 visual impairment of her right eye...
May 2017: Neurologist
https://www.readbyqxmd.com/read/28464811/effect-of-catalpol-on-remyelination-through-experimental-autoimmune-encephalomyelitis-acting-to-promote-olig1-and-olig2-expressions-in-mice
#8
Tao Yang, Qi Zheng, Su Wang, Ling Fang, Lei Liu, Hui Zhao, Lei Wang, Yongping Fan
BACKGROUND: Multiple sclerosis (MS) as an autoimmune disorder is a common disease occurring in central nervous system (CNS) and the remyelination plays a pivotal role in the alleviating neurological impairment in the MS. Catalpol, an effective component extracted from the Chinese herb Radix Rehmanniae, which has been proved protective in cerebral diseases. METHODS: To determine the protective effects and mechanisms of Catalpol on MS, the mice with experimental autoimmune encephalomyelitis (EAE) were induced by myelin oligodendrocyte glycoprotein (MOG) 35-55, as a model for human MS...
May 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28463090/effects-of-transcranial-magnetic-stimulation-on-oxidative-stress-in-experimental-autoimmune-encephalomyelitis
#9
Francisco J Medina-Fernandez, Begoña M Escribano, Eduardo Agüera, Macarena Aguilar-Luque, Montserrat Feijoo, Evelio Luque, Fe I Garcia-Maceira, Alvaro Pascual-Leone, René Drucker-Colin, Isaac Tunez
Experimental autoimmune encephalomyelitis (EAE) reproduces a multiple sclerosis (MS)-like experimental model. The main objective was to evaluate the effect of extremely low-frequency electromagnetic fields (EL-EMF) application, like a paradigm of transcranial magnetic stimulation (TMS) in the development of EAE. Rats were injected with a single dose of 150 μg of myelin oligodendrocyte glycoprotein (MOG, fragment 35-55) to produce experimental MS. To assess the effect of TMS application in EAE, the rats were treated with TMS (60 Hz and 0...
May 2, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28461116/anti-neuronal-anti-bodies-in-patients-with-early-psychosis
#10
O Mantere, M Saarela, T Kieseppä, T Raij, T Mäntylä, M Lindgren, E Rikandi, W Stoecker, B Teegen, J Suvisaari
It may be challenging to distinguish autoimmune encephalitis associated with anti-neuronal autoantibodies from primary psychiatric disorders. Here, serum was drawn from patients with a first-episode psychosis (n=70) or a clinical high-risk for psychosis (n=6) and controls (n=34). We investigated the serum prevalence of 24 anti-neuronal autoantibodies: IgG antibodies for anti-N-methyl-d-aspartate-type glutamate receptor (anti-NMDAR), glutamate and γ-aminobutyric acid alpha and beta receptors (GABA-a, GABA-b), alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPA), glycine receptor (GlyR), metabotropic glutamate receptor 1 and 5 (mGluR1, mGluR5), anti-Tr/Delta/notch-like epidermal growth factor-related receptor (DNER), contactin-associated protein-like 2 (CASPR2), myelin oligodendrocyte glycoprotein (MOG), glutamic acid decarboxylase-65 (GAD65), collapsin response mediator protein 5/crossveinless-2 (CV2), aquaporin-4 (AQP4), anti-dipeptidyl-peptidase-like protein-6 (DPPX), type 1 anti-neuronal nuclear antibody (ANNA-1, Hu), Ri, Yo, IgLON5, Ma2, zinc finger protein 4 (ZIC4), Rho GTPase-activating protein 26, amphiphysin, and recoverin, as well as IgA and IgM for dopamine-2-receptor (DRD2)...
April 28, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28457906/widespread-cortical-demyelination-of-both-hemispheres-can-be-induced-by-injection-of-pro-inflammatory-cytokines-via-an-implanted-catheter-in-the-cortex-of-mog-immunized-rats
#11
Muammer Üçal, Michaela Tanja Haindl, Milena Z Adzemovic, Johannes Strasser, Lisa Theisl, Manuel Zeitelhofer, Klaus Kraitsy, Stefan Ropele, Ute Schäfer, Franz Fazekas, Sonja Hochmeister
Cortical demyelination is a common finding in patients with chronic multiple sclerosis (MS) and contributes to disease progression and overall disability. The exact pathomechanism that leads to cortical lesions is not clear. Research is limited by the fact that standard animal models of multiple sclerosis do not commonly affect the cortex, or if they do in some variants, the cortical demyelination is rather sparse and already remyelinated within a few days. In an attempt to overcome these limitations we implanted a tissue-compatible catheter into the cortex of Dark Agouti rats...
April 27, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28457544/treatment-outcomes-in-patients-with-extranodal-marginal-zone-b-cell-lymphoma-of-the-lung
#12
Hyun Lee, Bumhee Yang, Boda Nam, Byeong-Ho Jeong, Sumin Shin, Jae Il Zo, Young Mog Shim, O Jung Kwon, Kyung Soo Lee, Hojoong Kim
OBJECTIVES: To evaluate clinical presentations, treatment modalities, and outcomes of pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma by stage strata. METHODS: We retrospectively reviewed 51 patients diagnosed with pulmonary MALT lymphoma between January 2003 and December 2015. To compare treatment modalities and outcomes, we stratified the patients into low-stage (IE/IIE) and high-stage (IIIE/IVE) groups using modified Ann Arbor staging. Progression-free survival was estimated using Kaplan-Meier curves, and differences were compared using the log-rank test...
March 21, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28449811/effects-of-polymorphisms-identified-in-genome-wide-association-studies-of-never-smoking-females-on-the-prognosis-of-non-small-cell-lung-cancer
#13
Seung Soo Yoo, Hyo-Gyoung Kang, Jin Eun Choi, Sook Kyung Do, Won Kee Lee, Sun Ha Choi, So Yeon Lee, Shin Yup Lee, Jaehee Lee, Seung Ick Cha, Chang Ho Kim, Yangki Seok, Eungbae Lee, Moon Soo Kim, Jong Mog Lee, Hyun-Ju Cho, In-Jae Oh, Young-Chul Kim, Sukki Cho, Sanghoon Jheon, Chi Young Jung, Mi-Hyun Kim, Min Ki Lee, Jae Yong Park
A number of genome-wide association studies have reported several variants that influence the risk of lung cancer in never-smoking females. We evaluated the impact of these variants on survival outcome in never-smoking females with non-small cell lung cancer (NSCLC). In total, 510 never-smoking females with NSCLC who underwent curative surgery were enrolled. Eleven variants associated with lung cancer susceptibility in never-smoking females were genotyped and their associations with survival outcome were analyzed...
April 2017: Cancer Genetics
https://www.readbyqxmd.com/read/28447514/neuroprotective-effects-of-ellagic-acid-on-cuprizone-induced-acute-demyelination-through-limitation-of-microgliosis-adjustment-of-cxcl12-il-17-il-11-axis-and-restriction-of-mature-oligodendrocytes-apoptosis
#14
Nima Sanadgol, Fereshteh Golab, Zakiyeh Tashakkor, Nooshin Taki, Samira Moradi Kouchi, Ali Mostafaie, Mehdi Mehdizadeh, Mohammad Abdollahi, Ghorban Taghizadeh, Mohammad Sharifzadeh
CONTEXT: Ellagic acid (EA) is a natural phenol antioxidant with various therapeutic activities. However, the efficacy of EA has not been examined in neuropathologic conditions. OBJECTIVE: In vivo neuroprotective effects of EA on cuprizone (cup)-induced demyelination were evaluated. MATERIAL AND METHODS: C57BL/6 J mice were fed with chow containing 0.2% cup for 4 weeks to induce oligodendrocytes (OLGs) depletion predominantly in the corpus callosum (CC)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28429225/design-of-chemical-conjugate-for-targeted-therapy-of-multiple-sclerosis-based-of-constant-fragment-of-human-antibody-heavy-chain-and-peptoid-analog-of-autoantigen-mog35-55
#15
Y A Lomakin, A V Stepanov, D S Balabashin, N A Ponomarenko, I V Smirnov, A A Belogurov
Elimination of B cells producing autoantibodies to neuroantigens is considered as beneficial in the treatment of multiple sclerosis. Myelin oligodendrocyte glycoprotein (MOG) is a significant autoantigen in multiple sclerosis. It was shown that MOG-like peptoid AMogP3 can bind autoantibodies produced by pathological lymphocytes. We propose a structure of an innovative drug for targeted elimination of the pool of autoreactive B cells responsible for multiple sclerosis pathogenesis; this compound is a complex of peptoid AMogP3 with Fc fragment of human immunoglobulin...
April 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28420330/anti-mog-antibody-positive-adem-following-infectious-mononucleosis-due-to-a-primary-ebv-infection-a-case-report
#16
Yoshitsugu Nakamura, Hideto Nakajima, Hiroki Tani, Takafumi Hosokawa, Shimon Ishida, Fumiharu Kimura, Kimihiko Kaneko, Toshiyuki Takahashi, Ichiro Nakashima
BACKGROUND: Anti-Myelin oligodendrocyte glycoprotein (MOG) antibodies are detected in various demyelinating diseases, such as pediatric acute disseminated encephalomyelitis (ADEM), recurrent optic neuritis, and aquaporin-4 antibody-seronegative neuromyelitis optica spectrum disorder. We present a patient who developed anti-MOG antibody-positive ADEM following infectious mononucleosis (IM) due to Epstein-Barr virus (EBV) infection. CASE PRESENTATION: A 36-year-old healthy man developed paresthesia of bilateral lower extremities and urinary retention 8 days after the onset of IM due to primary EBV infection...
April 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28418035/chronic-social-defeat-reduces-myelination-in-the-mouse-medial-prefrontal-cortex
#17
Michael L Lehmann, Thaddeus K Weigel, Abdel G Elkahloun, Miles Herkenham
The medial prefrontal cortex (mPFC) plays a key role in top-down control of the brain's stress axis, and its structure and function are particularly vulnerable to stress effects, which can lead to depression in humans and depressive-like states in animals. We tested whether chronic social defeat produces structural alterations in the mPFC in mice. We first performed a microarray analysis of mPFC gene expression changes induced by defeat, and biological pathway analysis revealed a dominant pattern of down-regulation of myelin-associated genes...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28397727/neutralization-of-interleukin-9-decreasing-mast-cells-infiltration-in-experimental-autoimmune-encephalomyelitis
#18
Jun-Jie Yin, Xue-Qiang Hu, Zhi-Feng Mao, Jian Bao, Wei Qiu, Zheng-Qi Lu, Hao-Tian Wu, Xiao-Nan Zhong
BACKGROUND: Th9 cells are a newly discovered CD4+ T helper cell subtype, characterized by high interleukin (IL)-9 secretion. Growing evidences suggest that Th9 cells are involved in the pathogenic mechanism of multiple sclerosis (MS). Mast cells are multifunctional innate immune cells, which are perhaps best known for their role as dominant effector cells in allergies and asthma. Several lines of evidence point to an important role for mast cells in MS and its animal models. Simultaneously, there is dynamic "cross-talk" between Th9 and mast cells...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28386103/cytomegalovirus-infection-exacerbates-autoimmune-mediated-neuroinflammation
#19
Marjan Vanheusden, Bieke Broux, Suzanne P M Welten, Liesbet M Peeters, Eleni Panagioti, Bart Van Wijmeersch, Veerle Somers, Piet Stinissen, Ramon Arens, Niels Hellings
Cytomegalovirus (CMV) is a latent virus which causes chronic activation of the immune system. Here, we demonstrate that cytotoxic and pro-inflammatory CD4(+)CD28(null) T cells are only present in CMV seropositive donors and that CMV-specific Immunoglobulin (Ig) G titers correlate with the percentage of these cells. In vitro stimulation of peripheral blood mononuclear cells with CMVpp65 peptide resulted in the expansion of pre-existing CD4(+)CD28(null) T cells. In vivo, we observed de novo formation, as well as expansion of CD4(+)CD28(null) T cells in two different chronic inflammation models, namely the murine CMV (MCMV) model and the experimental autoimmune encephalomyelitis (EAE) model for multiple sclerosis (MS)...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28384892/a-study-to-find-out-the-full-immunization-coverage-of-12-to-23-month-old-children-and-areas-of-under-performance-using-lqas-technique-in-a-rural-area-of-tripura
#20
Anjan Datta, Subrata Baidya, Srabani Datta, Chanda Mog, Shampa Das
INTRODUCTION: It is very important to analyze the factors which acts as obstacle in achieving 100% immunization among children. Lot Quality Assurance Sampling (LQAS) is one of the effective method to assess such barriers. AIM: To assess the full immunization coverage among 12 to 23-month old children of rural field practice area under Department of Community Medicine, Agartala Government Medical College and identify the factors for failure of full immunization. MATERIALS AND METHODS: A community based cross-sectional study was conducted from November 2013 to October 2014 on children aged 12 to 23 months old of area under Mohanpur Community health centre...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
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