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inclusion body myositis

Arno Olthoff, Per-Ole Carstens, Shuo Zhang, Eva von Fintel, Tim Friede, Joachim Lotz, Jens Frahm, Jens Schmidt
OBJECTIVE: To assess safety and feasibility of real-time (RT) MRI for evaluation of dysphagia and to compare this technique to standard assessment by flexible endoscopic evaluation of swallowing (FEES) and videofluoroscopy (VF) in a cohort of patients with inclusion body myositis (IBM). METHODS: Using RT-MRI, FEES, and VF, an unselected cohort of 20 patients with IBM was studied as index disease with a uniform dysphagia. Symptoms of IBM and dysphagia were explored by standardized tools including Swallowing-Related Quality of Life Questionnaire (SWAL-QoL), IBM Functional Rating Scale, Patient-Reported Functional Assessment, and Medical Research Council Scale...
October 21, 2016: Neurology
Thomas Schwartz, Louise Pyndt Diederichsen, Ingrid E Lundberg, Ivar Sjaastad, Helga Sanner
Idiopathic inflammatory myopathies (IIM) include the main subgroups polymyositis (PM), dermatomyositis (DM), inclusion body myositis (IBM) and juvenile DM (JDM). The mentioned subgroups are characterised by inflammation of skeletal muscles leading to muscle weakness and other organs can also be affected as well. Even though clinically significant heart involvement is uncommon, heart disease is one of the major causes of death in IIM. Recent studies show an increased prevalence of traditional cardiovascular risk factors in JDM and DM/PM, which need attention...
2016: RMD Open
Monica Lavian, Namita Goyal, Tahseen Mozaffar
We present a case of a 65-year-old woman who was previously diagnosed with idiopathic granulomatous myositis and treated with immunosuppressive therapy for the next 10 years before a clinical diagnosis of inclusion body myositis was made. A review of the previously performed muscle biopsy showed most of the cardinal myopathologic features of sporadic inclusion body myositis, in addition to the granuloma. Her clinical course was strongly suggestive of inclusion body myositis with selective asymmetric weakness of forearm flexor muscles and quadriceps...
September 13, 2016: Neuromuscular Disorders: NMD
Andrea Váncsa
Using current recommended treatment, a majority of patients with idiopathic inflammatory myopathy develop muscle impairment and poor health. Beneficial effects of exercise have been reported on muscle performance, aerobic capacity and health in chronic polymyositis and dermatomyositis, as well as in active disease and inclusion body myositis to some extent. Importantly, randomized controlled trials indicate that improved health and decreased clinical disease activity could be mediated through increased aerobic capacity...
September 2016: Orvosi Hetilap
Iago Pinal-Fernandez, Maria Casal-Dominguez, John A Carrino, Arash H Lahouti, Pari Basharat, Jemima Albayda, Julie J Paik, Shivani Ahlawat, Sonye K Danoff, Thomas E Lloyd, Andrew L Mammen, Lisa Christopher-Stine
OBJECTIVES: The aims of this study were to define the pattern of muscle involvement in patients with immune-mediated necrotising myopathy (IMNM) relative to those with other inflammatory myopathies and to compare patients with IMNM with different autoantibodies. METHODS: All Johns Hopkins Myositis Longitudinal Cohort subjects with a thigh MRI (tMRI) who fulfilled criteria for IMNM, dermatomyositis (DM), polymyositis (PM), inclusion body myositis (IBM) or clinically amyopathic DM (CADM) were included in the study...
September 20, 2016: Annals of the Rheumatic Diseases
Seiya Noda, Haruki Koike, Shinya Maeshima, Hirotaka Nakanishi, Masahiro Iijima, Koji Matsuo, Seigo Kimura, Masahisa Katsuno, Gen Sobue
Introduction We examined whether transforming growth factor-β (TGF-β) signaling is dysregulated in sporadic inclusion body myositis (sIBM) muscle samples. Methods We examined TGF-β signaling markers in muscle samples from 24 sIBM patients and compared them with those from 10 dermatomyositis (DM) patients using immunohistochemistry and western blot analyses. Results Compared with the DM muscle fibers, the sIBM muscle fibers exhibited greater TGF-β, TGF-β receptor type I (TβRI), and TGF-β receptor type II (TβRII) immunoreactivity in the cytoplasm, as well as greater phosphorylated Smad2 (pSmad2) immunoreactivity in the myonuclei...
September 14, 2016: Muscle & Nerve
L Gallay, P Petiot
Sporadic inclusion-body myositis (sIBM) is the most frequent myopathy after 50 years of age. As the clinical presentation may often be typical, pathological confirmation by muscle biopsy appears necessary, but sometimes difficult. Further delineation of the framework of this particular disease, especially during its early-onset stage, appears to be challenging. New classification of diagnostic criteria as well as the identification of new diagnostic hallmarks appear to be the two main tools towards to achieve this purpose...
October 2016: Revue Neurologique
Laura Nuño, Beatriz Joven, Patricia Carreira, Valentina Maldonado, Carmen Larena, Irene Llorente, Eva Tomero, María Carmen Barbadillo, Paloma García-de la Peña, Lucía Ruiz, Juan Carlos López-Robledillo, Henry Moruno, Ana Pérez, Tatiana Cobo-Ibáñez, Raquel Almodóvar, Leticia Lojo, Indalecio Monteagudo, María Jesús García-De Yébenes, Francisco Javier López-Longo
OBJECTIVE: To analyze clinical characteristics, survival and causes of death of patients diagnosed with autoimmune inflammatory myositis in the REMICAM registry from the Society of Rheumatology in the Community of Madrid (SORCOM). METHODS: Multicenter cohort of patients diagnosed with autoimmune inflammatory myopathy with follow-up between January 1980 and December 2014. A total of 313 variables concerning demographic, clinical and morbidity data were collected, and a comparison was performed between clinical subgroups...
September 5, 2016: Reumatología Clinica
Qiang Gang, Conceição Bettencourt, Pedro M Machado, Stefen Brady, Janice L Holton, Alan M Pittman, Deborah Hughes, Estelle Healy, Matthew Parton, David Hilton-Jones, Perry B Shieh, Merrilee Needham, Christina Liang, Edmar Zanoteli, Leonardo Valente de Camargo, Boel De Paepe, Jan De Bleecker, Aziz Shaibani, Michela Ripolone, Raffaella Violano, Maurizio Moggio, Richard J Barohn, Mazen M Dimachkie, Marina Mora, Renato Mantegazza, Simona Zanotti, Andrew B Singleton, Michael G Hanna, Henry Houlden
Genetic factors have been suggested to be involved in the pathogenesis of sporadic inclusion body myositis (sIBM). Sequestosome 1 (SQSTM1) and valosin-containing protein (VCP) are 2 key genes associated with several neurodegenerative disorders but have yet to be thoroughly investigated in sIBM. A candidate gene analysis was conducted using whole-exome sequencing data from 181 sIBM patients, and whole-transcriptome expression analysis was performed in patients with genetic variants of interest. We identified 6 rare missense variants in the SQSTM1 and VCP in 7 sIBM patients (4...
August 8, 2016: Neurobiology of Aging
José C Milisenda, Verónica Rico Caballero, Ana I García, Xavier Tomás, Josep M Grau
No abstract text is available yet for this article.
August 23, 2016: Medicina Clínica
Nicholas J Silvestri, Gil I Wolfe, David Lacomis, Mark B Bromberg
The Guillain-Barré syndrome (GBS) is one of the few neuropathies well known to the general public, in part because of its association with swine flu vaccinations in 1976. GBS has again reached the general public with its possible association with Zika virus. The virus, borne by infected Aedes aegypti mosquitos, is being linked to birth defects when pregnant women are bitten and infected. There are early reports also linking GBS to Zika infection, which could expose a wider range of infected people to the neuropathy...
September 2016: Journal of Clinical Neuromuscular Disease
Adam P Lightfoot, Robert G Cooper
PURPOSE OF REVIEW: This article updates on the concept that muscle-derived cytokines (myokines) play important roles in muscle health and disease. RECENT FINDINGS: Interleukin-6 (IL-6) is released from normal skeletal muscle in response to exercise, mediating both anti-inflammatory responses and metabolic adaptations, actions contradictory to the prevailing view that IL-6 is a proinflammatory cytokine that is inducing and propagating disease. The anti-inflammatory effects of IL-6 result from its trans-membrane signalling capability, via membrane-bound receptors, whereas its proinflammatory effects result instead from signalling via the soluble IL-6 receptor and gp130...
November 2016: Current Opinion in Rheumatology
Øyvind Molberg, Cecilie Dobloug
PURPOSE OF REVIEW: In this review, we describe recent progress in the clinical epidemiology of sporadic inclusion body myositis (IBM). RECENT FINDINGS: In a population-based, retrospective study from Norway, performed with a denominator population of 2.6 million; and with cases defined by the 1997 and/or 2011 European Neuro-Muscular Centre Research Diagnostic criteria, the estimated point prevalence of IBM was 3.3/100 000. Mean time from symptom onset to diagnosis was 5...
November 2016: Current Opinion in Rheumatology
Olivier Benveniste, Werner Stenzel, Yves Allenbach
PURPOSE OF REVIEW: Inflammatory myopathies are rare diseases. Their diagnosis criteria are historically based on their clinical phenotype (topography of the muscle weakness, presence of skin lesions and/or of extra-skin/muscle signs) and the presence of inflammatory infiltrates on muscle biopsy. However, the recent discovery of different myositis-specific antibodies (MSA) or myositis-associated antibodies (MAA) permitted to revisit these old classifications. This review covers recent findings in clinical and pathological phenotypes regarding prognosis, associated cancer and response to the treatment based on MSA/MAA categorization...
October 2016: Current Opinion in Neurology
Salyan Bhattarai, Khetam Ghannam, Sabine Krause, Olivier Benveniste, Andreas Marg, Gerjan de Bruin, Bo-Tao Xin, Hermen S Overkleeft, Simone Spuler, Werner Stenzel, Eugen Feist
Idiopathic inflammatory myopathies (IIMs) are diseases with muscle weakness, morphologically characterized by inflammatory infiltration and increased expression of MHC class I molecule on myofibers. Immunoproteasome, as a proteolytic complex that shapes the repertoire of antigenic peptides, has been previously demonstrated to be over-expressed in IIMs at mRNA level. In this study, we investigated the expression and the function of the immunoproteasome in IIMs in more detail. As shown by immunofluorescence staining, expression of relevant players of the immunoproteasome was detectable in the inflamed skeletal muscle tissue from IIM patients...
August 10, 2016: Journal of Autoimmunity
Lindsay N Alfano, Han Yin, Igor Dvorchik, Elizabeth G Maus, Kevin M Flanigan, Jerry R Mendell, Linda P Lowes
INTRODUCTION: The ability to individualize recommendations or expectations of disease progression based on a patient's unique characteristics has merit for use in sporadic inclusion body myositis (sIBM). METHODS: Fifty-five subjects with sIBM completed a battery of strength and functional outcomes at 2 study visits. These were used to develop mathematical models of disease progression in patients with sIBM for use in clinical and research settings. RESULTS: The six minute walk test (6MWT) distance declined an average of 27...
August 11, 2016: Muscle & Nerve
Joanne O'Connor, Dorothy McCaughan, Catriona McDaid, Alison Booth, Debra Fayter, Roccio Rodriguez-Lopez, Roy Bowers, Lisa Dyson, Cynthia P Iglesias, Simon Lalor, Rory J O'Connor, Margaret Phillips, Gita Ramdharry
BACKGROUND: Patients who have knee instability that is associated with neuromuscular disease (NMD) and central nervous system (CNS) conditions can be treated using orthoses, such as knee-ankle-foot orthoses (KAFOs). OBJECTIVES: To assess existing evidence on the effectiveness of orthoses; patient perspectives; types of orthotic devices prescribed in the UK NHS; and associated costs. METHODS: Qualitative study of views of orthoses users - a qualitative in-depth interview study was undertaken...
July 2016: Health Technology Assessment: HTA
Simon Rothwell, Janine A Lamb, Hector Chinoy
PURPOSE OF REVIEW: This article reviews the advances that have been made in our understanding of the genetics of the idiopathic inflammatory myopathies (IIM) in the past 2 years, with a particular focus on polymyositis, dermatomyositis and inclusion body myositis. RECENT FINDINGS: Two large human leukocyte antigen (HLA) imputation studies have confirmed a strong association with the 8.1 ancestral haplotype in clinical subgroups of myositis and suggest multiple independent associations on this haplotype...
November 2016: Current Opinion in Rheumatology
Andrea Váncsa, Katalin Dankó
Myositis, which means inflammation of the muscles, is a general term used for inflammatory myopathies. Myositis is a rare idiopathic autoimmune disease. It is believed that environmental factors such as virus, bacteria, parasites, direct injuries, drugs side effect can trigger the immune system of genetically susceptible individuals to act against muscle tissues. There are several types of myositis with the same systemic symptoms such as muscle weakness, fatigue, muscle pain and inflammation. These include dermatomyositis, juvenile dermatomyositis, inclusion-body myositis, polymyositis, orbital myositis and myositis ossificans...
July 2016: Orvosi Hetilap
Aziz Shaibani
About 15% of myopathies present with distal weakness. Lack of sensory deficit, and preservation of sensory responses and deep tendon reflexes, favors a myopathic cause for distal weakness. Electromyogram confirms this diagnosis. Profuse spontaneous discharges are common in inflammatory, metabolic, and myofibrillar myopathy (MFM). If the clinical picture indicates a specific disease such as facioscapulohumeral muscular dystrophy (FSHD), genetic testing provides the quickest diagnosis. Otherwise, muscle biopsy can distinguish specific features...
August 2016: Neurologic Clinics
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