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Inflammatory myositis

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https://www.readbyqxmd.com/read/29766941/idiopathic-inflammatory-myopathies-in-adults-a-comparative-study-of-bohan-and-peter-and-european-neuromuscular-center-2004-criteria
#1
Sundaram Challa, Saumya Jakati, Megha S Uppin, Meena A Kannan, Rajasekhar Liza, M K Murthy Jagarlapudi
Background: Bohan and Peter criteria are widely used for the diagnosis of idiopathic inflammatory myopathies (IIMs). Recently, European Neuromuscular Center (ENMC) formulated criteria to identify subgroups of IIMs. Aim: To compare the two diagnostic criteria in adult IIMs. Materials and Methods: This was a retrospective review of case records of histologically confirmed IIMs in adults between January 2014 and May 2015. Both the Bohan and Peter, and ENMC 2004 criteria were applied in the same group of patients to subgroup the IIMs...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29748534/activated-dendritic-cells-modulate-proliferation-and-differentiation-of-human-myoblasts
#2
Leandro Ladislau, Débora M Portilho, Tristan Courau, Alhondra Solares-Pérez, Elisa Negroni, Jeanne Lainé, David Klatzmann, Adriana Bonomo, Yves Allenbach, Olivier Benveniste, Ingo Riederer, Wilson Savino, Vincent Mouly, Gillian Butler-Browne, Claudia F Benjamim
Idiopathic Inflammatory Myopathies (IIMs) are a heterogeneous group of autoimmune diseases affecting skeletal muscle tissue homeostasis. They are characterized by muscle weakness and inflammatory infiltration with tissue damage. Amongst the cells in the muscle inflammatory infiltration, dendritic cells (DCs) are potent antigen-presenting and key components in autoimmunity exhibiting an increased activation in inflamed tissues. Since, the IIMs are characterized by the focal necrosis/regeneration and muscle atrophy, we hypothesized that DCs may play a role in these processes...
May 10, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29741079/clinical-and-prognostic-significance-of-muscle-biopsy-in-sarcoidosis
#3
Halil Yanardag, Cuneyt Tetikkurt, Muammer Bilir
The main objective of this study was to evaluate the influence of muscle involvement on the clinical features, prognostic outcome, extrapulmonary organ, and endobronchial involvement in sarcoidosis patients. The second aim was to assess the diagnostic yield of muscle biopsy for the histopathologic identification of sarcoidosis.  Fifty sarcoidosis patients participated in the study. The patients were classified into two groups according to the histopathologic presence of non-caseating granulomatous inflammatory pattern of the muscle biopsy samples and were evaluated retrospectively in regard to clinical features, prognosis, extrapulmonary, and endobronchial disease involvement...
April 30, 2018: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/29720800/necrotizing-autoimmune-myopathy-clinicopathologic-study-from-a-single-tertiary-care-centre
#4
Sobiya Mahnaz Ayesha, A K Meena, Navatha Vangala, Liza Rajasekhar, Subhash Kaul, Rupam Borgahain, Megha S Uppin
Background: Idiopathic inflammatory myopathies (IIMs) are a group of chronic, autoimmune disorders which include a new entity, necrotizing autoimmune myopathy (NAM). NAM lacks inflammation and presents with markedly elevated creatinine phosphokinase (CPK) levels. It is associated with connective tissue diseases (CTDs), statin use, malignancies, and most cases are idiopathic. Objectives: The objectives of this study are to describe the clinicopathologic features in muscle biopsy-proven cases of NAM...
January 2018: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29692623/nephritis-cerebritis-and-myositis-after-adalimumab-therapy-in-a-patient-with-rheumatoid-arthritis-a-case-report
#5
Narges E Omran, Abdulsalam A Noorwali
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that mainly affects the joints, therefore, may cause deformities and disability if untreated. The first line of treatment is disease-modifying antirheumatic drugs (DMARDs). When the patient fails to respond to DMARDs, mainly methotrexate, then second-line therapy is required. Tumor necrosis factor α (TNFα) plays an important role in the pathogenesis of RA; however, the treatment with anti-TNFα medications is challenging. It may trigger the autoimmune system and result in producing antibodies that induce symptoms and signs mimic to systemic lupus erythematosus (SLE), and in rare situations can affect vital organs with severe and life-threatening complications...
2018: International Journal of General Medicine
https://www.readbyqxmd.com/read/29687155/takayasu-arteritis-in-childhood-misdiagnoses-at-disease-onset-and-associated-diseases
#6
Gleice Clemente, Clovis A Silva, Silvana B Sacchetti, Virginia P L Ferriani, Sheila K Oliveira, Flavio Sztajnbok, Blanca E R G Bica, André Cavalcanti, Teresa Robazzi, Marcia Bandeira, Maria Teresa Terreri
Juvenile-Takayasu arteritis (j-TA) is a difficult diagnosis and some patients develop uncommon manifestations and associated diseases that may contribute to the delayed diagnosis. Our aim was to identify the misdiagnoses, the associated diseases and the atypical manifestations observed in a j-TA Brazilian multicentre study. 71 children and adolescents who met the classification criteria for j-TA were included. The misdiagnoses, the associated diseases and the atypical manifestations were evaluated. 19 (26.8%) patients had misdiagnoses...
April 23, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29681817/gemcitabine-induced-radiation-recall-myositis-case-report-and-review-of-the-literature
#7
Adarsh Ravishankar, Sean S Park, Kenneth R Olivier, Kimberly S Corbin
Gemcitabine-induced radiation recall (GIRR) is a phenomenon wherein the administration of gemcitabine induces an inflammatory reaction within an area of prior radiation. We present the case of a 39-year-old female patient with metastatic breast cancer who experienced GIRR myositis 3 months following postoperative radiotherapy, with additional potential paraspinal myositis following ablative radiotherapy to the thoracic spine. A review of previously published cases of GIRR myositis was performed. The case and literature review describe the clinical course and presentation of GIRR, and highlight the importance of including radiation recall as part of a differential diagnosis when a patient undergoing chemotherapy experiences an inflammatory reaction at a prior site of radiation...
January 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/29674613/risk-factors-and-disease-mechanisms-in-myositis
#8
REVIEW
Frederick W Miller, Janine A Lamb, Jens Schmidt, Kanneboyina Nagaraju
Autoimmune diseases develop as a result of chronic inflammation owing to interactions between genes and the environment. However, the mechanisms by which autoimmune diseases evolve remain poorly understood. Newly discovered risk factors and pathogenic processes in the various idiopathic inflammatory myopathy (IIM) phenotypes (known collectively as myositis) have illuminated innovative approaches for understanding these diseases. The HLA 8.1 ancestral haplotype is a key risk factor for major IIM phenotypes in some populations, and several genetic variants associated with other autoimmune diseases have been identified as IIM risk factors...
April 20, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29674612/autoantibodies-in-myositis
#9
REVIEW
Neil J McHugh, Sarah L Tansley
The discovery of novel autoantigen systems related to idiopathic inflammatory myopathies (collectively referred to as myositis) in adults and children has had major implications for the diagnosis and management of this group of diseases across a wide range of medical specialties. Traditionally, autoantibodies found in patients with myositis are described as being myositis-specific autoantibodies (MSAs) or myositis-associated autoantibodies (MAAs), depending on their prevalence in other, related conditions. However, certain MSAs are more closely associated with extramuscular manifestations, such as skin and lung disease, than with myositis itself...
April 20, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29673367/comparing-the-importance-of-quality-measurement-themes-in-juvenile-idiopathic-inflammatory-myositis-between-patients-and-families-and-healthcare-professionals
#10
Heather O Tory, Ruy Carrasco, Thomas Griffin, Adam M Huber, Philip Kahn, Angela Byun Robinson, David Zurakowski, Susan Kim
BACKGROUND: A standardized set of quality measures for juvenile idiopathic inflammatory myopathies (JIIM) is not in use. Discordance has been shown between the importance ascribed to quality measures between patients and families and physicians. The objective of this study was to assess and compare the importance of various aspects of high quality care to patients with JIIM and their families with healthcare providers, to aid in future development of comprehensive quality measures. METHODS: Surveys were developed by members of the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Juvenile Dermatomyositis Workgroup through a consensus process and administered to patients and families through the CureJM Foundation and to healthcare professionals through CARRA...
April 19, 2018: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/29669460/current-diagnosis-and-treatment-of-polymyositis-and-dermatomyositis
#11
Hirokazu Sasaki, Hitoshi Kohsaka
Idiopathic inflammatory myopathies (IIMs) are heterogeneous disorders that affect the skeletal muscles. Polymyositis, dermatomyositis, and inclusion body myositis are major IIM subsets. Immune-mediated necrotizing myopathy became recognized as a potentially new IIM subset. Since the new classification criteria published by the International Myositis Classification Criteria Project have higher sensitivity and specificity for IIM classification and subclassification than the previous criteria, they should help precise diagnosis...
April 18, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29665800/mda-5-associated-rapidly-progressive-interstitial-lung-disease-with-recurrent-pneumothoraces-a-case-report
#12
Safi Alqatari, Peter Riddell, Sinead Harney, Michael Henry, Grainne Murphy
BACKGROUND: Clinically hypomyopathic dermatomyositis is a rare disease that is important to recognize, investigate and treat early as it is associated with poor prognosis. In a proportion of patients, myositis specific antibodies could be negative, but with high clinical suspicion, myositis associated antibodies should be ordered. Anti-MDA-5 antibodies was reported in literature to be associated with severe and rapidly progressive interstitial lung disease, with few case reports of pneumothorax and/or pneumomediastinum...
April 17, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29657677/immunoglobulin-g4-related-disease-an-update
#13
REVIEW
Abdullah Al-Mujaini, Murtadha Al-Khabori, Kashinatha Shenoy, Upender Wali
Immunoglobulin G4-related disease (IgG4-RD) is an increasingly recognized immune-mediated condition comprised of a collection of disorders that share specific pathological, serological, and clinical features. IgG4-RD is a fibroinflammatory condition with a tendency to form tumors with inflammatory infiltrate with IgG4 rich plasma cells and elevation of serum IgG4, which may affect virtually every organ and tissue. IgG4-related ophthalmic disease may present as dacryoadenitis, myositis, or involvement of other orbital tissue...
March 2018: Oman Medical Journal
https://www.readbyqxmd.com/read/29651121/classification-of-myositis
#14
REVIEW
Ingrid E Lundberg, Marianne de Visser, Victoria P Werth
The idiopathic inflammatory myopathies (IIMs; also known as myositis) are a heterogeneous group of disorders in which a common feature is chronic inflammation of skeletal muscle, leading to muscle weakness. Other organs are frequently affected in IIMs, such as the skin, joints, lungs, gastrointestinal tract and heart, contributing to morbidity and mortality. Currently, IIMs are most often subclassified into polymyositis, dermatomyositis and inclusion body myositis, but this subclassification has limitations as these subgroups often have overlapping clinical and histopathological features, and outcomes vary within the subgroups; additionally, subgroups without considerable myopathy are not included...
April 12, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29651119/update-on-outcome-assessment-in-myositis
#15
REVIEW
Lisa G Rider, Rohit Aggarwal, Pedro M Machado, Jean-Yves Hogrel, Ann M Reed, Lisa Christopher-Stine, Nicolino Ruperto
The adult and juvenile myositis syndromes, commonly referred to collectively as idiopathic inflammatory myopathies (IIMs), are systemic autoimmune diseases with the hallmarks of muscle weakness and inflammation. Validated, well-standardized measures to assess disease activity, known as core set measures, were developed by international networks of myositis researchers for use in clinical trials. Composite response criteria using weighted changes in the core set measures of disease activity were developed and validated for adult and juvenile patients with dermatomyositis and adult patients with polymyositis, with different thresholds for minimal, moderate and major improvement in adults and juveniles...
April 12, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29644434/successful-treatment-of-antisynthetase-syndrome-presenting-as-rhabdomyolysis-with-rituximab
#16
REVIEW
Marwa Mohammed Sabha, Hermann Talom Simo, Rana Mohammed Shadid, Nezam Ibrahim Altorok
Rhabdomyolysis is a syndrome of muscle necrosis with subsequent release of intracellular content into the blood. There are various causes for rhabdomyolysis that include trauma, medications and rarely autoimmune conditions such as autoimmune myositis. Antisynthetase syndrome is an autoimmune condition characterized by positive antisynthetase antibody, myopathy, lung disease and arthritis. To our knowledge, rhabdomyolysis in antisynthetase syndrome has not been reported in the literature. In this report, we present a patient who presented with features of rhabdomyolysis and was diagnosed with antisynthetase syndrome...
April 11, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29642946/correction-to-identification-of-multiple-cancer-associated-myositis-specific-autoantibodies-in-idiopathic-inflammatory-myopathies-a-large-longitudinal-cohort-study
#17
Hanbo Yang, Qinglin Peng, Liguo Yin, Shanshan Li, Jingli Shi, Yamei Zhang, Xin Lu, Xiaoming Shu, Sigong Zhang, Guochun Wang
After publication of the article [1], it has been brought to our attention that the labels in Fig. 2b have been switched and are as a result incorrect. The label for the red line should have the label "non-CAM" and the yellow line "CAM".
April 11, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29628025/focal-myositis-with-neurogenic-atrophy-case-report-and-review-of-the-literature
#18
Diogo Fitas, Ana Monteiro, Fernando Silveira, Lígia Castro, Stirling Carpenter, Goreti Nadais
Focal myositis is a very rare form of inflammatory myopathy, with unknown etiology. We describe a 44-year-old previously healthy man who noticed a painless swelling on his left forearm, following trauma over the left cubital fossa. The swelling grew progressively over 2 years. He had otherwise no weakness complaints. Physical and neurological examinations were otherwise normal. Creatine kinase and aldolase levels were increased (1,009 U/L and 11.9 U/L, respectively); autoimmunity panel was negative. MRI showed diffuse edema and gadolinium enhancement of muscles innervated by the median nerve...
April 9, 2018: Clinical Neuropathology
https://www.readbyqxmd.com/read/29623846/immune-mediated-necrotizing-myopathy-where-do-we-stand
#19
Abdel Gaffar A Mohammed, Ayanda Gcelu, Farzana Moosajee, Stella Botha, Ali Asgar Kalla
Immune-mediated necrotizing myopathies (IMNMs) are a group of acquired autoimmune muscle disorders that have been recently defined. They are characterized by proximal muscle weakness, high levels of creatinine kinase, and myopathic findings on electromyogram (EMG). Muscle biopsy in IMNM differentiates it from the other subgroups of idiopathic inflammatory myositis (IIM) by the presence of myofibre necrosis and prominent regeneration without substantial lymphocytic inflammatory infiltrates. Anti-signal recognition particle (SRP) and anti-3hydroxy-3 methylglutaryl-coenzyme A reductase (HMGCR) autoantibodies were found in two thirds of IMNM patients...
April 5, 2018: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/29615652/interleukin-23-as-a-therapeutic-target-for-inflammatory-myopathy
#20
Natsuka Umezawa, Kimito Kawahata, Fumitaka Mizoguchi, Naoki Kimura, Yoko Yoshihashi-Nakazato, Nobuyuki Miyasaka, Hitoshi Kohsaka
Current treatments of polymyositis and dermatomyositis (PM/DM) depend on non-specific immunosuppressants. This study was performed to elucidate the role of interleukin (IL)-23, as their possible therapeutic target. As was reported earlier in PM/DM patients, serum IL-23 levels were elevated in mice with C protein induced-myositis (CIM), a murine model of PM. IL-23 was expressed by macrophages in the PM/DM and CIM muscles and by dendritic cells and macrophages in the lymph nodes from the CIM mice. It was also expressed by macrophages in the chemically injured muscles, but not those recruited into the muscles by footpad injection of Freund's complete adjuvant, demonstrating that IL-23 production should be associated with muscle damage...
April 3, 2018: Scientific Reports
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