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peripheral neuropathy Igm

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https://www.readbyqxmd.com/read/27866728/what-is-new-in-2015-in-dysimmune-neuropathies
#1
REVIEW
T Kuntzer
This review discusses and summarizes the concept of nodopathies, the diagnostic features, investigations, pathophysiology, and treatment options of chronic inflammatory demyelinating polyradiculoneuropathy, and gives updates on other inflammatory and dysimmune neuropathies such as Guillain-Barré syndrome, sensory neuronopathies, small-fiber-predominant ganglionitis, POEMS syndrome, neuropathies associated with IgM monoclonal gammopathy and multifocal motor neuropathy. This field of research has contributed to the antigenic characterization of the peripheral motor and sensory functional systems, as well as helping to define immune neuropathic syndromes with widely different clinical presentation, prognosis and response to therapy...
December 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27825464/prognostic-factors-and-indications-for-treatment-of-waldenstr%C3%A3-m-s-macroglobulinemia
#2
REVIEW
Robert A Kyle, Stephen M Ansell, Prashant Kapoor
Waldenström's Macroglobulinemia (WM) is characterized by the presence of an IgM monoclonal protein regardless of its size, 10% or more bone marrow infiltration by small lymphocytes with a plasmacytoid or plasma cell differentiation. These cells usually have the following markers: IgM+, CD5(-), CD10(-), CD19(+), CD20(+) and CD23(-). Chronic lymphocytic leukemia as well as other lymphoproliferative disorders such as mantle cell, marginal zone and mucosa-associated lymphoid tissue (MALT) lymphoma must be excluded...
June 2016: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/27725289/virologic-clinical-and-immune-response-outcomes-of-patients-with-hepatitis-c-virus-associated-cryoglobulinemia-treated-with-direct-acting-antivirals
#3
Martín Bonacci, Sabela Lens, María-Carlota Londoño, Zoe Mariño, Maria C Cid, Manuel Ramos-Casals, Jose María Sánchez-Tapias, Xavier Forns, José Hernández-Rodríguez
BACKGROUND & AIMS: Cryoglobulins (circulating immune complexes of polyclonal IgG, monoclonal IgM, and rheumatoid factor) are detected in the circulation of 40% to 60% of patients with chronic hepatitis C virus infection, and cryoglobulinemic vasculitis (CV) is observed in approximately 10% of patients. We aimed to assess the clinical and immune effects of direct-acting antiviral treatment. METHODS: We performed a prospective study of 64 patients with HCV infection with circulating cryoglobulins receiving direct-acting antiviral therapy at a single center in Barcelona, Spain, from January 2014 through April 2016...
October 8, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27701752/immunotherapy-for-igm-anti-myelin-associated-glycoprotein-paraprotein-associated-peripheral-neuropathies
#4
REVIEW
Michael Pt Lunn, Eduardo Nobile-Orazio
BACKGROUND: Serum monoclonal anti-myelin-associated glycoprotein (anti-MAG) antibodies may be pathogenic in some people with immunoglobulin M (IgM) paraprotein and demyelinating neuropathy. Immunotherapies aimed at reducing the level of these antibodies might be expected to be beneficial. This is an update of a review first published in 2003 and previously updated in 2006 and 2012. OBJECTIVES: To assess the effects of immunotherapy for IgM anti-MAG paraprotein-associated demyelinating peripheral neuropathy...
October 4, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27245314/anti-myelin-associated-glycoprotein-antibody-peripheral-neuropathy-response-to-combination-chemoimmunotherapy-with-bendamustine-rituximab-in-a-patient-with-biclonal-igm-%C3%AE%C2%BA-and-igm-%C3%AE-case-report-and-review-of-the-literature
#5
https://www.readbyqxmd.com/read/27242125/associations-of-serum-anti-ganglioside-antibodies-and-inflammatory-markers-in-diabetic-peripheral-neuropathy
#6
Shengjie Ge, Jing Xie, Lequn Zheng, Lijuan Yang, Hong Zhu, Xingbo Cheng, Feixia Shen
AIMS: To investigate the associations between inflammatory markers, serum anti-ganglioside antibodies (anti-GS-ab), serum plasminogen activator inhibitor-1 (PAI-1), tumor necrosis factor-α (TNF-α), C-reactive protein (CRP), and diabetic peripheral neuropathy (DPN). METHODS: Study subjects were divided into three groups: normal group (N group) with 101 healthy individuals; diabetes mellitus without peripheral neuropathy group (DM group) with 87 patients; and DPN group with 178 cases...
December 0: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/27065581/analyzing-relationship-between-monoclonal-gammopathy-of-undetermined-significance-mgus-with-different-types-of-neuropathy-an-observational-study
#7
Shahzaib Nabi, Pushpinderdeep Kahlon, Farshid Bozorgnia, Adeel Arshad, Akmam Saleem, Philip Kuriakose
To analyze multiple variables, including immunoglobulin subtypes in patients with monoclonal gammopathy of undetermined significance (MGUS) and different types of neuropathy. This was a retrospective, single center study done in a tertiary care hospital in the United States. The data was collected for years 2001-2011. Inclusion criteria were the presence of MGUS and neuropathy. Exclusion criteria were the presence of other factors such as diabetes, vitamin B12 deficiency, alcoholism etc. which can cause neuropathy...
June 2016: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/26935415/the-expanding-spectrum-of-hcv-related-cryoglobulinemic-vasculitis-a-narrative-review
#8
REVIEW
Franco Dammacco, Vito Racanelli, Sabino Russi, Domenico Sansonno
Cryoglobulinemic vasculitis (CV) is a small-to-medium-vessel vasculitis that appears in 10-15 % of patients chronically infected with hepatitis C virus (HCV). The classic symptom triad of CV, purpura/asthenia/arthralgia, is accompanied by clinical features that include glomerulonephritis, neuropathy, interstitial pneumonitis, and cardiomyopathy, ranging in their severity from mild to life threatening. The risk of developing non-Hodgkin lymphoma is also higher. The cumulative 10-year survival rate of CV patients is significantly lower than in the age- and sex-matched general population, with death typically caused by nephropathy, malignancies, liver involvement, and severe infections...
August 2016: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/26636679/occupational-exposure-to-swine-poultry-and-cattle-and-antibody-biomarkers-of-campylobacter-jejuni-exposure-and-autoimmune-peripheral-neuropathy
#9
COMPARATIVE STUDY
Leora Vegosen, Patrick N Breysse, Jacqueline Agnew, Gregory C Gray, Irving Nachamkin, Kazim Sheikh, Freya Kamel, Ellen Silbergeld
INTRODUCTION: Foodborne Campylobacter jejuni infection has been associated with an increased risk of autoimmune peripheral neuropathy, but risks of occupational exposure to C. jejuni have received less attention. This study compared anti-C. jejuni IgA, IgG, and IgM antibody levels, as well as the likelihood of testing positive for any of five anti-ganglioside autoantibodies, between animal farmers and non-farmers. Anti-C. jejuni antibody levels were also compared between farmers with different animal herd or flock sizes...
2015: PloS One
https://www.readbyqxmd.com/read/26602549/immunotherapy-in-peripheral-neuropathies
#10
Jean-Marc Léger, Raquel Guimarães-Costa, Cristina Muntean
Immunotherapy has been investigated in a small subset of peripheral neuropathies, including an acute one, Guillain-Barré syndrome, and 3 chronic forms: chronic inflammatory demyelinating polyradiculoneuropathy, multifocal motor neuropathy, and neuropathy associated with IgM anti-myelin-associated glycoprotein. Several experimental studies and clinical data are strongly suggestive of an immune-mediated pathogenesis. Either cell-mediated mechanisms or antibody responses to Schwann cell, compact myelin, or nodal antigens are considered to act together in an aberrant immune response to cause damage to peripheral nerves...
January 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/26437251/the-importance-of-rare-subtypes-in-diagnosis-and-treatment-of-peripheral-neuropathy-a-review
#11
REVIEW
Brian C Callaghan, Raymond S Price, Kevin S Chen, Eva L Feldman
IMPORTANCE: Peripheral neuropathy is a prevalent condition that usually warrants a thorough history and examination but has limited diagnostic evaluation. However, rare localizations of peripheral neuropathy often require more extensive diagnostic testing and different treatments. OBJECTIVE: To describe rare localizations of peripheral neuropathy, including the appropriate diagnostic evaluation and available treatments. EVIDENCE REVIEW: References were identified from PubMed searches conducted on May 29, 2015, with an emphasis on systematic reviews and randomized clinical trials...
December 2015: JAMA Neurology
https://www.readbyqxmd.com/read/26263475/recent-advances-in-outcome-measures-in-igm-anti-mag-neuropathies
#12
REVIEW
Mariëlle H J Pruppers, Ingemar S J Merkies, Nicolette C Notermans
PURPOSE OF REVIEW: This review aims to provide an overview of all randomized trials performed in IgM Anti-Myelin Associated Glycoprotein related peripheral neuropathy (MGUSP) with emphasis on the applied outcome measures including the rationale for their choice and possible limitations, emphasizing new advances in modern clinimetrics. RECENT FINDINGS: All clinical trials performed in patients with MGUSP have been negative, which raises many unanswered questions: were the sample sizes too small, the duration of the trials too short, the chosen medical interventions not aggressive enough, the definition of being a responder inadequate, and, last but not least, the outcome measures used improper? Only recently has attention been directed towards the possibility of using suboptimal outcome measures as a potential factor that may have contributed to the negative results in MGUSP...
October 2015: Current Opinion in Neurology
https://www.readbyqxmd.com/read/26065001/heterogeneity-of-polyneuropathy-associated-with-anti-mag-antibodies
#13
Laurent Magy, Raphaël Kaboré, Stéphane Mathis, Prisca Lebeau, Karima Ghorab, Christiane Caudie, Jean-Michel Vallat
Polyneuropathy associated with IgM monoclonal gammopathy and anti-myelin associated glycoprotein (MAG) antibodies is an immune-mediated demyelinating neuropathy. The pathophysiology of this condition is likely to involve anti-MAG antibody deposition on myelin sheaths of the peripheral nerves and it is supposed to be distinct from chronic inflammatory demyelinating neuropathy (CIDP), another immune-mediated demyelinating peripheral neuropathy. In this series, we have retrospectively reviewed clinical and laboratory findings from 60 patients with polyneuropathy, IgM gammopathy, and anti-MAG antibodies...
2015: Journal of Immunology Research
https://www.readbyqxmd.com/read/26002963/how-i-treat-waldenstr%C3%A3-m-macroglobulinemia
#14
Steven P Treon
Waldenström macroglobulinemia (WM) is a B-cell neoplasm manifested by the accumulation of clonal immunoglobulin (Ig)M-secreting lymphoplasmacytic cells. MYD88 and CXCR4 warts, hypogammaglobulinemia, infections, myelokathexis syndrome-like somatic mutations are present in >90% and 30% to 35% of WM patients, respectively, and impact disease presentation, treatment outcome, and overall survival. Familial predisposition is common in WM. Asymptomatic patients should be observed. Patients with disease-related hemoglobin <10 g/L, platelets <100 × 10(9)/L, bulky adenopathy and/or organomegaly, symptomatic hyperviscosity, peripheral neuropathy, amyloidosis, cryoglobulinemia, cold-agglutinin disease, or transformed disease should be considered for therapy...
August 6, 2015: Blood
https://www.readbyqxmd.com/read/25888197/poems-syndrome-with-peripheral-and-central-nervous-system-demyelination-case-report
#15
Hafize Nalan Güneş, Nedime Tuğçe Bilecenoğlu, Ufuk Şener, Tahir K Yoldaş
INTRODUCTION: POEMS syndrome is a rare, atypical plasma cell proliferative disorder. Predominantly motor chronic demyelinating polyneuropathy and monoclonal plasma cell disease are the major clinical features of POEMS syndrome. Demyelinating lesions of the central nervous system have been reported only in 2 patients with POEMS syndrome up to now. CASE REPORT: A 71-year-old man was investigated for numbness, burning sensation, and weakness of the lower extremities...
April 2015: Neurologist
https://www.readbyqxmd.com/read/25879857/endogenous-antibodies-contribute-to-macrophage-mediated-demyelination-in-a-mouse-model-for-cmt1b
#16
Dennis Klein, Janos Groh, Andreas Weishaupt, Rudolf Martini
BACKGROUND: We could previously identify components of both the innate and the adaptive immune system as disease modifiers in the pathogenesis of models for Charcot-Marie-Tooth (CMT) neuropathies type 1B and 1X. As part of the adaptive immune system, here we investigated the role of antibodies in a model for CMT1B. METHODS: Antibodies were localized and characterized in peripheral nerves of the CMT1B model by immunohistochemistry and Western blot analysis. Experimental ablation of antibodies was performed by cross breeding the CMT1B models with mutants deficient in B-lymphocytes (JHD-/- mutants)...
2015: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/25877245/-clinicoelectrophysiological-characteristics-of-peripheral-nerves-with-paraproteinemia
#17
Hefei Tang, Zaiqiang Zhang
OBJECTIVE: To explore the clinicoelectrophysiological characteristics of paraproteinemic neuropathy (PPN). METHODS: Retrospective analyses were performed for the clinical data, including clinical characteristics, laboratory and neural electrophysiological examinations, of hospitalized patients with definitively diagnosed PPN from 2008 to 2012. Their objective parameters were compared between different sub-groups. RESULTS: There were 12 males and 8 females with an average age of 52 years...
January 27, 2015: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/25803231/treatment-for-igg-and-iga-paraproteinaemic-neuropathy
#18
REVIEW
Abraham C J Stork, Michael P T Lunn, Eduardo Nobile-Orazio, Nicolette C Notermans
BACKGROUND: Paraproteinaemic neuropathy refers to those neuropathies associated with a monoclonal gammopathy or paraprotein. The most common of these present with a chronic, predominantly sensory, symmetrical neuropathy, similar to chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) but with relatively more sensory involvement, both clinically and neurophysiologically. The optimal treatment for neuropathies associated with IgG and IgA monoclonal gammopathy of uncertain significance is not known...
March 24, 2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/25779451/endogenous-antibodies-contribute-to-macrophage-mediated-demyelination-in-a-mouse-model-for-cmt1b
#19
Dennis Klein, Janos Groh, Andreas Weishaupt, Rudolf Martini
BACKGROUND: We could previously identify components of both the innate and the adaptive immune system as disease modifiers in the pathogenesis of models for Charcot-Marie-Tooth (CMT) neuropathies type 1B and 1X. As part of the adaptive immune system, here we investigated the role of antibodies in a model for CMT1B. METHODS: Antibodies were localized and characterized in peripheral nerves of the CMT1B model by immunohistochemistry and Western blot analysis. Experimental ablation of antibodies was performed by cross breeding the CMT1B models with mutants deficient in B-lymphocytes (JHD-/- mutants)...
December 2015: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/25620065/nerve-ultrasound-in-a-case-of-multifocal-motor-neuropathy-without-conduction-block
#20
Kalliopi Pitarokoili, Ralf Gold, Min-Suk Yoon
INTRODUCTION: Multifocal nerve enlargements and ultrastructural changes either corresponding or not to sites of existing conduction blocks have been described in demyelinating polyneuropathies using multiple imaging techniques. METHODS: Using the emerging technique of peripheral nerve ultrasonography we investigated the peripheral nerves of a patient with multifocal motor neuropathy (MMN) without conduction block. RESULTS: In this case of MMN without conduction blocks we found multifocal nerve enlargements in the ultrasonography and electrodiagnostic signs of acute and chronic denervation associated with positive anti-GM1 IgM antibodies...
August 2015: Muscle & Nerve
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