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https://www.readbyqxmd.com/read/28810923/the-chemokine-fractalkine-cx3cl1-attenuates-h2o2-induced-demyelination-in-cerebellar-slices
#1
Sinead A O'Sullivan, Kumlesh K Dev
BACKGROUND: Fractalkine/CX3CR1 signalling has been implicated in many neurodegenerative and neurological diseases of the central nervous system (CNS). This signalling pathway plays an important role in regulating reactive oxygen species (ROS), as well as itself being altered in conditions of oxidative stress. Here, we investigated the effects of recombinant fractalkine (rCX3CL1) in models of hydrogen peroxide (H2O2)-induced demyelination and astrocyte toxicity, within organotypic cerebellar slice cultures...
August 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28796544/journal-club-doubling-time-of-thymic-epithelial-tumors-correlates-with-world-health-organization-histopathologic-classification
#2
Dong Young Jeong, Kyung Soo Lee, Myung Jin Chung, Jae Ill Zo, Young Mog Shim, Jung Won Moon
OBJECTIVE: Awareness of volume doubling times (VDTs) of different thymic epithelial tumors (TETs), including low- and high-grade thymomas and thymic carcinomas, is important for their management. The purpose of this study was to evaluate the VDTs of incidentally found TETs using 3D volumetry (3D-VDT) and longest diameter (LD-VDT). MATERIALS AND METHODS: This retrospective study included 50 patients (30 men, 20 women) who had histologically proven TETs and who underwent at least two serial CT studies at greater than 2-month intervals...
August 10, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28793956/hypersensitivity-reaction-to-%C3%AE-lactam-antibiotics-in-patients-with-adult-t-cell-leukemia-lymphoma-treated-with-mogamulizumab%C3%A2
#3
Takeo Yasu, Yoichi Imai, Nobuhiro Ohno, Kaoru Uchimaru, Yosuke Kurokawa, Arinobu Tojo
Mogamulizumab (MOG) is a humanized anti-CCR4 monoclonal antibody that is highly cytotoxic for adult T-cell leukemia/lymphoma (ATL) cells. Most non-hematological adverse events are cutaneous adverse reactions in ATL patients. We reviewed the medical records of 24 patients with CCR4-positive aggressive ATL who had received MOG treatment. The incidence of MOG-induced cutaneous adverse reactions (MCARs) was 25% (6 patients). Four patients with MCAR had an interesting clinical course, compared with MCARs reported in previous reports...
August 10, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28780774/changes-in-haematopoietic-progenitor-colony-differentiation-and-proliferation-and-the-production-of-different-abzymes-in-eae-mice-treated-with-dna
#4
Kseniya S Aulova, Ludmila B Toporkova, Julia A Lopatnikova, Alina A Alshevskaya, Sergei V Sennikov, Valentina N Buneva, Thomas Budde, Sven G Meuth, Nelly A Popova, Irina A Orlovskaya, Georgy A Nevinsky
Immunization of experimental autoimmune encephalomyelitis (EAE)-prone C57BL/6 mice with MOG35-55 (a model used to study aspects of human multiple sclerosis) is known to lead to the production of various abzymes. The production of catalytic IgGs that can efficiently hydrolyse myelin basic protein (MBP), MOG and DNA is associated with changes in the profile of differentiation and level of proliferation of mice bone marrow haematopoietic stem cells (HSCs). As MOG simulates the production of abzymes with high DNase activity, we compared the effects of DNA and MOG immunization on EAE-prone mice...
August 5, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28776122/mechanisms-involved-in-the-remyelinating-effect-of-sildenafil
#5
Daniela Díaz-Lucena, María Gutierrez-Mecinas, Beatriz Moreno, José Lupicinio Martínez-Sánchez, Paula Pifarré, Agustina García
Remyelination occurs in demyelinated lesions in multiple sclerosis (MS) and pharmacological treatments that enhance this process will critically impact the long term functional outcome in the disease. Sildenafil, a cyclic GMP (cGMP)-specific phosphodiesterase 5 inhibitor (PDE5-I), is an oral vasodilator drug extensively used in humans for treatment of erectile dysfunction and pulmonary arterial hypertension. PDE5 is expressed in central nervous system (CNS) neuronal and glial populations and in endothelial cells and numerous studies in rodent models of neurological disease have evidenced the neuroprotective potential of PDE5-Is...
August 3, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28770374/mog-antibody-related-disorders-common-features-and-uncommon-presentations
#6
Álvaro Cobo-Calvo, Anne Ruiz, Hyacintha D'Indy, Anne-Lise Poulat, Maryline Carneiro, Nicolas Philippe, Françoise Durand-Dubief, Kumaran Deiva, Sandra Vukusic, Vincent Desportes, Romain Marignier
Myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) have been reported in acute demyelinating encephalomyelitis (ADEM), optic neuritis (ON), and neuromyelitis optica spectrum disorders (NMOSD) in adults and pediatrics. We aimed to delineate the common features of MOG-Ab-related disorders in children and adults, and report uncommon presentations. Twenty-seven consecutive pediatric and adult patients testing positive for MOG-Ab, with a minimum follow-up of 6 months, were included. Comprehensive epidemiological, clinical, radiological, and laboratory data were retrospectively analyzed...
August 2, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28768901/essential-role-for-ccr6-in-certain-inflammatory-diseases-demonstrated-using-specific-antagonist-and-knockin-mice
#7
Remy Robert, Caroline Ang, Guizhi Sun, Laurent Juglair, Ee X Lim, Linda J Mason, Natalie L Payne, Claude Ca Bernard, Charles R Mackay
The chemokine receptor CCR6 marks subsets of T cells and innate lymphoid cells that produce IL-17 and IL-22, and as such may play a role in the recruitment of these cells to certain inflammatory sites. However, the precise role of CCR6 has been controversial, in part because no effective monoclonal antibody (mAb) inhibitors against this receptor exist for use in mouse models of inflammation. We circumvented this problem using transgenic mice expressing human CCR6 (hCCR6) under control of its native promoter (hCCR6-Tg/mCCR6-/-)...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28768844/prognostic-relevance-of-mog-antibodies-in-children-with-an-acquired-demyelinating-syndrome
#8
Eva-Maria Hennes, Matthias Baumann, Kathrin Schanda, Banu Anlar, Barbara Bajer-Kornek, Astrid Blaschek, Sigrid Brantner-Inthaler, Katharina Diepold, Astrid Eisenkölbl, Thaddäus Gotwald, Georgi Kuchukhidze, Ursula Gruber-Sedlmayr, Martin Häusler, Romana Höftberger, Michael Karenfort, Andrea Klein, Johannes Koch, Verena Kraus, Christian Lechner, Steffen Leiz, Frank Leypoldt, Simone Mader, Klaus Marquard, Imke Poggenburg, Daniela Pohl, Martin Pritsch, Markus Raucherzauner, Mareike Schimmel, Charlotte Thiels, Daniel Tibussek, Silvia Vieker, Carolin Zeches, Thomas Berger, Markus Reindl, Kevin Rostásy
OBJECTIVE: To assess the prognostic value of MOG antibodies (abs) in the differential diagnosis of acquired demyelinating syndromes (ADS). METHODS: Clinical course, MRI, MOG-abs, AQP4-abs, and CSF cells and oligoclonal bands (OCB) in children with ADS and 24 months of follow-up were reviewed in this observational prospective multicenter hospital-based study. RESULTS: Two hundred ten children with ADS were included and diagnosed with acute disseminated encephalomyelitis (ADEM) (n = 60), neuromyelitis optica spectrum disorder (NMOSD) (n = 12), clinically isolated syndrome (CIS) (n = 101), and multiple sclerosis (MS) (n = 37) after the first episode...
August 2, 2017: Neurology
https://www.readbyqxmd.com/read/28767363/robust-online-matrix-factorization-for-dynamic-background-subtraction
#9
Hongwei Yong, Deyu Meng, Wangmeng Zuo, Lei Zhang
We propose an effective online background subtraction method, which can be robustly applied to practical videos that have variations in both foreground and background. Different from previous methods which often model the foreground as Gaussian or Laplacian distributions, we model the foreground for each frame with a specific mixture of Gaussians (MoG) distribution, which is updated online frame by frame. Particularly, our MoG model in each frame is regularized by the learned foreground/background knowledge in previous frames...
July 27, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28762472/absence-of-notch1-in-murine-myeloid-cells-attenuates-the-development-of-experimental-autoimmune-encephalomyelitis-by-affecting-th1-and-th17-priming
#10
Miriam Fernández, Eva M Monsalve, Susana López-López, Almudena Ruiz-García, Susana Mellado, Elena Caminos, José Javier García-Ramírez, Jorge Laborda, Pedro Tranque, María José M Díaz-Guerra
Inhibition of Notch signalling in T cells attenuates the development of experimental autoimmune encephalomyelitis (EAE), a mouse model of multiple sclerosis. Growing evidence indicates that myeloid cells are also key players in autoimmune processes. Thus, the present study evaluates the role of the Notch1 receptor in myeloid cells on the progression of myelin oligodendrocyte glycoprotein (MOG)35-55 -induced EAE, using mice with a myeloid-specific deletion of the Notch1 gene (MyeNotch1KO). We found that EAE progression was less severe in the absence of Notch1 in myeloid cells...
August 1, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28759648/anemoside-a3-ameliorates-experimental-autoimmune-encephalomyelitis-by-modulating-t-helper-17-cell-response
#11
Fanny C F Ip, Yu Pong Ng, Terry C T Or, Peiran Sun, Guangmiao Fu, Jessica Y H Li, Wen-Cai Ye, Tom H Cheung, Nancy Y Ip
Anemoside A3 (AA3) is a natural triterpenoid glycoside isolated from the root of Pulsatilla chinensis (Bunge) Regel. We previously showed that AA3 exhibits cognitive-enhancing and neuroprotective properties. In the present study, we demonstrated that AA3 modulates inflammatory responses by regulating prostaglandin E receptor 4 signaling. Because prostaglandin E receptor 4 is involved in the pathophysiology of experimental autoimmune encephalomyelitis (EAE), an animal model of human multiple sclerosis (MS), we assessed the beneficial effect of AA3 in EAE mice...
2017: PloS One
https://www.readbyqxmd.com/read/28759565/low-doses-of-cholera-toxin-and-its-mediator-camp-induce-ctla-2-secretion-by-dendritic-cells-to-enhance-regulatory-t-cell-conversion
#12
Cinthia Silva-Vilches, Katrien Pletinckx, Miriam Lohnert, Vladimir Pavlovic, Diyaaeldin Ashour, Vini John, Emilia Vendelova, Susanne Kneitz, Jie Zhou, Rena Chen, Thomas Reinheckel, Thomas D Mueller, Jochen Bodem, Manfred B Lutz
Immature or semi-mature dendritic cells (DCs) represent tolerogenic maturation stages that can convert naive T cells into Foxp3+ induced regulatory T cells (iTreg). Here we found that murine bone marrow-derived DCs (BM-DCs) treated with cholera toxin (CT) matured by up-regulating MHC-II and costimulatory molecules using either high or low doses of CT (CThi, CTlo) or with cAMP, a known mediator CT signals. However, all three conditions also induced mRNA of both isoforms of the tolerogenic molecule cytotoxic T lymphocyte antigen 2 (CTLA-2α and CTLA-2β)...
2017: PloS One
https://www.readbyqxmd.com/read/28755492/comparison-of-fatigue-depression-and-anxiety-as-factors-affecting-posttreatment-health-related-quality-of-life-in-lung-cancer-survivors
#13
Ju Youn Jung, Jong Mok Lee, Moon Soo Kim, Young Mog Shim, Jae Ill Zo, Young Ho Yun
OBJECTIVE: To compare the effects of fatigue, anxiety, and depression on health-related quality of life (HRQoL) in survivors of surgically resectable lung cancer METHODS: In total, 830 lung cancer survivors participated in the study. They completed a questionnaire consisting of items pertaining to sociodemographic characteristics, clinical variables, and HRQoL. We calculated prevalence rates for fatigue, anxiety, and depression and performed multiple logistic regression and general linear modeling to determine the main factors affecting HRQoL...
July 29, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28744286/a-b-cell-driven-autoimmune-pathway-leading-to-pathological-hallmarks-of-progressive-multiple-sclerosis-in-the-marmoset-experimental-autoimmune-encephalomyelitis-model
#14
REVIEW
Bert A 't Hart, Jordon Dunham, Bart W Faber, Jon D Laman, Jack van Horssen, Jan Bauer, Yolanda S Kap
The absence of pathological hallmarks of progressive multiple sclerosis (MS) in commonly used rodent models of experimental autoimmune encephalomyelitis (EAE) hinders the development of adequate treatments for progressive disease. Work reviewed here shows that such hallmarks are present in the EAE model in marmoset monkeys (Callithrix jacchus). The minimal requirement for induction of progressive MS pathology is immunization with a synthetic peptide representing residues 34-56 from human myelin oligodendrocyte glycoprotein (MOG) formulated with a mineral oil [incomplete Freund's adjuvant (IFA)]...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28741662/molecular-breakdown-a-comprehensive-view-of-anaplastic-lymphoma-kinase-alk-rearranged-non-small-cell-lung-cancer
#15
Ka-Won Noh, Mi-Sook Lee, Seung Eun Lee, Ji-Young Song, Hyun-Tae Shin, Yu Jin Kim, Doo Yi Oh, Kyungsoo Jung, Minjung Sung, Mingi Kim, Sungbin An, Joungho Han, Young Mog Shim, Jae Ill Zo, Jhingook Kim, Woong-Yang Park, Se-Hoon Lee, Yoon-La Choi
Most anaplastic lymphoma kinase (ALK)-rearranged non-small cell lung cancers (NSCLCs) show good clinical response to ALK inhibitors. However, some ALK-rearranged NSCLC patients show various primary responses with unknown reasons. Previous studies focused on the clinical aspects of ALK fusions in small cohorts, or were conducted in vitro and/or in vivo to investigate the function of ALK. One of the suggested theories describes how Echinoderm microtubule-associated protein-like 4 (EML4)-ALK variants play a role towards different sensitivities in ALK inhibitors...
July 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28736276/b-cells-as-therapeutic-targets-in-neuro-inflammatory-diseases
#16
Reinhard Hohlfeld
B cells are an emerging therapeutic target in neuroinflammatory diseases. The anti-CD20 monoclonal antibody ocrelizumab was recently approved in the US as the first B-cell targeting immunomodulatory treatment for relapsing-remitting MS and primary progressive MS. In autoantibody-associated demyelinating syndromes such as neuromyelitis optica (NMO) and in myelin-oligodendrocyte-glycoprotein-(MOG)-autoantibody-associated encephalomyelitis, B-cells are a logical target based on the pathogenesis of these antibody-mediated disorders...
July 21, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28733756/glial-and-neuronal-antibodies-in-patients-with-idiopathic-intracranial-hypertension
#17
Güneş Altıokka-Uzun, Ece Erdağ, Betül Baykan, John Tzartos, Duygu Gezen-Ak, Bedia Samancı, Erdinç Dursun, Paraskevi Zisimopoulou, Katerina Karagiorgou, Christos Stergiou, Erdi Şahin, Esme Ekizoğlu, Murat Kürtüncü, Erdem Tüzün
Headache and visual disturbances are the main presenting symptoms of idiopathic intracranial hypertension (IIH) characterized by increased intracranial pressure (ICP) with an unknown cause. We aimed to investigate the antibodies against optic neuritis-associated glial antigens, aquaporin-4 (AQP4) and myelin oligodendrocyte glycoprotein (MOG) and uncharacterized neuronal membrane antigens in IIH patients. Consecutive patients diagnosed according to Friedman revised diagnostic criteria and control subjects were included after their consent...
July 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28732440/intravenous-injection-of-myelin-oligodendrocyte-glycoprotein-coated-plga-microparticles-have-tolerogenic-effects-in-experimental-autoimmune-encephalomyelitis
#18
Mehrdad Gholamzad, Masoumeh Ebtekar, Mehdi Shafiee Ardestani
The abnormal function of the T lymphocytes causes a range of autoimmune diseases, particularly multiple sclerosis; hence, several methods have been used to treat these disorders through the induction of antigen-specific tolerance in T cells. The present study aims to use a simple and low-cost method to produce poly (lactic-co-glycolic acid) (PLGA) nanoparticles for carrying antigens and inducing antigen-specific tolerance. In this study, PLGA nanoparticles were produced using the water/oil/water (W/O/W) method...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28732026/investigation-of-opioid-use-and-long-term-oncologic-outcomes-for-non-small-cell-lung-cancer-patients-treated-with-surgery
#19
Tak Kyu Oh, Jae Hyun Jeon, Jong Mog Lee, Moon Soo Kim, Jee Hee Kim, Hyeyeon Cho, Seong-Eun Kim, Woosik Eom
Opioids are commonly used for postoperative pain control in cancer patients. In addition to pain control, an association between opioid use and long-term oncologic outcomes, such as recurrence or overall survival, has been postulated. The aim of this study was to determine whether postoperative opioid use in patients with non-small cell lung cancer is associated with long-term oncologic outcomes, including recurrence and death. Data obtained from 1009 medical records of patients who underwent curative resection at the National Cancer Center, Korea between January 2006 and December 2010 were retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28694134/hashimoto-s-encephalopathy-and-anti-mog-antibody-encephalitis-50-years-after-lord-brain-s-description
#20
Kerrie-Anne Chen, Fabienne Brilot, Russell C Dale, Antony R Lafferty, Peter Ian Andrews
PURPOSE: To consider the role of anti-MOG Abs associated encephalitis in Hashimoto's Encephalitis (HE). RESULTS: A 10 year old girl with pre-existing Hashimoto's thyroiditis presented with dysarthria, ataxia and lethargy whilst euthyroid. Brain MRI showed multifocal T2 and FLAIR hyperintense lesions. She responded promptly to treatment with corticosteroids. Her clinical scenario was comparable to a sizeable minority of patients diagnosed with HE in the literature, who have similar brain MRIs...
June 10, 2017: European Journal of Paediatric Neurology: EJPN
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