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Inflammatory polymyositis

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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/29741130/quantitative-characterization-of-the-relationship-between-levels-of-extended-corticosteroid-use-and-related-adverse-events-in-a-us-population
#2
J Bradford Rice, Alan G White, Michaela Johnson, Aneesha Wagh, Yimin Qin, Laura Bartels-Peculis, Gosia Ciepielewska, Winnie W Nelson
OBJECTIVE: This retrospective study assessed the incidence and timing of adverse events (AEs) among patients prescribed varying dose levels of corticosteroids in the US. METHODS: Patients with selected autoimmune or inflammatory disease diagnoses between 2006 and 2015 were identified from a privately-insured administrative database. Patients were stratified into treatment cohorts based on dosage and length of corticosteroid use: intermittent use with duration <60 days, and three extended use cohorts with duration ≥60 days at low (≤7...
May 9, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29720802/a-viral-polymyositis-masquerade-life-threatening-case-of-juvenile-dermatomyositis-complicated-by-systemic-capillary-leak-syndrome
#3
Bhaskara P Shelley, Shrijeet Chakraborti
This is a case report of an 8-year-old boy who developed an atypical, rare subphenotype of autoimmune inflammatory acute juvenile dermatomyositis (JDM), initially masquerading as viral polymyositis (PM)-like presentation, that was complicated by a hitherto unreported fulminant, life-threatening pediatric systemic capillary leak syndrome (SCLS). We highlight the close differential between viral PM and JDM, the baffling clinical syndromic constellation of hypotension with hemoconcentration - a "shock"-like syndrome, hypoalbuminemia without albuminuria, and generalized edema with the atypical JDM presentation, and stress crucial need to implement early aggressive, multipronged immunomodulatory treatment along with intensive fluid resuscitation which saved the life, this patient from a stormy, and turbulent 4-week clinical illness...
January 2018: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29713867/treatment-of-adult-idiopathic-inflammatory-myopathies-with-conventional-immunosuppressive-drugs-results-of-a-retrospective-study
#4
G Keyßer, S Zierz, M Kornhuber
OBJECTIVES: To gain information about the efficacy of immunosuppressive drugs as first-, second-, and third-line treatment of idiopathic inflammatory myopathies (IIM). METHODS: 112 treatment cycles of 63 patients with dermatomyositis (n = 23), polymyositis (n = 33), overlap syndromes (n = 4), and undifferentiated connective tissue diseases (n = 3) were analyzed by retrospective chart analysis. Data regarding muscle strength, muscle enzymes, treatment duration, and treatment discontinuation were collected...
April 30, 2018: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/29669460/current-diagnosis-and-treatment-of-polymyositis-and-dermatomyositis
#5
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/29651121/classification-of-myositis
#6
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
#7
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/29615652/interleukin-23-as-a-therapeutic-target-for-inflammatory-myopathy
#8
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
https://www.readbyqxmd.com/read/29595280/-idiopathic-inflammatory-myopathies
#9
Jiří Vencovský
Idiopathic inflammatory myopathies form a heterogeneous group of acquired inflammatory diseases afflicting striated muscles. The disease is frequently accompanied by systemic and organ involvement. Dermatomyositis, polymyositis, cancer associated myositis, immune mediated necrotizing myopathy, myositis in overlap syndromes, juvenile myositis and inclusion body myositis are the most frequently encountered subtypes. The basic manifestation is usually painless muscle weakness brought about by inflammation and by other immune changes at the impacted muscles...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29579414/triggers-of-inflammatory-myopathy-insights-into-pathogenesis
#10
Brittany L Adler, Lisa Christopher-Stine
The inflammatory myopathies, which include dermatomyositis, polymyositis, and the immune-mediated necrotizing myopathies, are a heterogeneous group of autoimmune diseases that manifest with muscle, skin, or lung damage. Collectively, these autoimmune diseases result from loss of tolerance to a select group of self-antigens, although the precise mechanism through which this occurs is not known. Infection, malignancy, and certain medications including statins and the immune checkpoint inhibitors used in cancer therapy have been identified as potential immunologic triggers of the inflammatory myopathies...
February 2018: Discovery Medicine
https://www.readbyqxmd.com/read/29541951/the-prevalence-and-clinical-significance-of-anti-puf60-antibodies-in-patients-with-idiopathic-inflammatory-myopathy
#11
Ya-Mei Zhang, Han-Bo Yang, Jing-Li Shi, He Chen, Xiao-Ming Shu, Xin Lu, Guo-Chun Wang, Qing-Lin Peng
Autoantibodies against poly-U-binding factor 60 kDa protein (PUF60) have been reported in Caucasian dermatomyositis (DM) patients. However, their clinical significance in idiopathic inflammatory myopathy (IIM) remains to be fully clarified. Our objective was to analyze the prevalence and clinical significance of anti-PUF60 antibodies in a large cohort of Chinese IIM patients. In our study, 388 IIM patients, 301 disease controls, and 167 healthy controls (HCs) were involved. An enzyme-linked immunosorbent assay (ELISA) was developed to detect serum anti-PUF60 levels and was validated using immunoblotting methods...
June 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29522204/revisiting-pathological-classification-criteria-for-adult-idiopathic-inflammatory-myopathies-in-depth-analysis-of-muscle-biopsies-and-correlation-between-pathological-diagnosis-and-clinical-manifestations
#12
Ying Hou, Yue-Bei Luo, Tingjun Dai, Kai Shao, Wei Li, Yuying Zhao, Jian-Qiang Lu, Chuanzhu Yan
The European Neuromuscular Centre (ENMC) pathological classification criteria of idiopathic inflammatory myopathies (IIMs) are debatable. The aim of this study was to explore their practicability and reproducibility. We conducted a retrospective analysis of 57 cases of IIMs excluding dermatomyositis (DM) and sporadic inclusion body myositis (sIBM) by in-depth analysis of muscle biopsies and comparisons of the clinical characteristics among polymyositis (PM), non-specific myositis (NSM) and necrotizing autoimmune myopathy (NAM)...
May 1, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29516280/serum-baff-in-indian-patients-with-iim-a-retrospective-study-reveals-novel-clinico-phenotypic-associations-in-children-and-adults
#13
Latika Gupta, Smriti Chaurasia, Puja Srivastava, Sanjay Dwivedi, Able Lawrence, Ramnath Misra
We studied the serum levels of B cell survival factors BAFF and APRIL in patients with idiopathic inflammatory myositis (IIM) and their relation with clinical and autoantibodies. Seventy-five patients (51 females and 24 males) with IIM (Bohan and Peter's criteria 1975) and 25 healthy adults were analyzed for BAFF, APRIL and IL-17 by ELISA, and myositis-specific and associated antibodies (MSA and MAA) using line immunoblot assay. Of the 75 patients, 59 were adults, 42 had Dermatomyositis (DM), and 17 had Polymyositis...
May 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29515464/localization-and-expression-of-nuclear-factor-of-activated-t-cells-5-in-myoblasts-exposed-to-pro-inflammatory-cytokines-or-hyperosmolar-stress-and-in-biopsies-from-myositis-patients
#14
Sandrine Herbelet, Elly De Vlieghere, Amanda Gonçalves, Boel De Paepe, Karsten Schmidt, Eline Nys, Laurens Weynants, Joachim Weis, Gert Van Peer, Jo Vandesompele, Jens Schmidt, Olivier De Wever, Jan L De Bleecker
Aims: Regeneration in skeletal muscle relies on regulated myoblast migration and differentiation, in which the transcription factor nuclear factor of activated T-cells 5 (NFAT5) participates. Impaired muscle regeneration and chronic inflammation are prevalent in myositis. Little is known about the impact of inflammation on NFAT5 localization and expression in this group of diseases. The goal of this study was to investigate NFAT5 physiology in unaffected myoblasts exposed to cytokine or hyperosmolar stress and in myositis...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29430120/role-of-positron-emission-tomography-computed-tomography-in-a-case-of-suspected-paraneoplastic-inflammatory-polymyositis-with-urinary-bladder-tumor
#15
Pratyusha Bikkina, Swapna Kotha, Zakir Ali
Idiopathic inflammatory myositis is characterized by rapidly progressive, symmetric weakness of the muscles that produce severe disability. In the majority of these patients, myositis appears to be a paraneoplastic feature associated with cancer. Fluorodeoxyglucose positron emission tomography-computed tomography has been increasingly used in the detection and evaluation of occult malignancy responsible for the paraneoplastic syndromes.
January 2018: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29416342/increased-risk-of-venous-thromboembolism-associated-with-polymyositis-and-dermatomyositis-a-meta-analysis
#16
REVIEW
Yanqing Li, Peihong Wang, Lei Li, Fei Wang, Yuxiu Liu
Objective: Polymyositis and dermatomyositis (PM/DM) have been implicated in the development of venous thromboembolism (VTE). Previous studies investigating the association between PM/DM and VTE risk had yielded inconsistent findings. The aim of this study was to precisely estimate this association by meta-analysis of all available publications. Methods: Two investigators independently performed a comprehensive literature search in databases of PubMed, Embase, and the Cochrane Library for eligible studies...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29411180/adam-17-is-expressed-in-the-inflammatory-myopathy-and-is-involved-with-interstitial-lung-disease
#17
Airi Nishimi, Takeo Isozaki, Shinichiro Nishimi, Sho Ishii, Takahiro Tokunaga, Hidekazu Furuya, Kuninobu Wakabayashi, Tsuyoshi Kasama
The "A disintegrin and metalloprotease" (ADAM) family is thought to play an important role in tissue destruction and inflammatory reactions. ADAM-17 was first described as the protease responsible for tumor necrosis factor (TNF)-α shedding. Here, we have shown the expression of ADAM-17 in inflammatory myopathy and demonstrated the role of inflammation in interstitial lung diseases (ILD). ADAM-17 in inflammatory myopathy serum [polymyositis (n = 26), dermatomyositis (n = 34), and clinically amyopathic dermatomyositis (n = 10)] and healthy control (n = 19) was measured using enzyme-linked immunosorbent assay...
April 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29396013/coexistence-of-anti-jo1-and-anti-signal-recognition-particle-antibodies-in-a-polymyositis-patient
#18
Enrique Melguizo Madrid, Patricia Fernández Riejos, Francisco Javier Toyos Sáenz de Miera, Berta Fernández Pérez, Concepción González Rodríguez
Idiopathic inflammatory myopathies are a heterogeneous group of potentially treatable myopathies. They are classified, on the basis of clinical and histopathological features, into four subtypes: dermatomyositis, polymyositis, necrotizing autoimmune myositis and inclusion-body myositis. Myositis-associated antibodies and myositis-specific autoantibodies are frequently found in patients with idiopathic inflammatory myopathies, and are useful in the diagnosis and classification. Anti-histidyl transfer RNA synthetase antibody is the most widely prevalent and is highly specific for polymyositis...
January 25, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29380533/analysis-of-anti-melanoma-differentiation-associated-gene-5-antibody-in-hong-kong-chinese-patients-with-idiopathic-inflammatory-myopathies-diagnostic-utility-and-clinical-correlations
#19
Ho So, Ricky W-K Ip, Victor T-L Wong, Ronald M-L Yip
AIM: To compare the prevalence of the anti-melanoma differentiation-associated gene 5 antibody (anti-MDA5 Ab) in Hong Kong Chinese patients with dermatomyositis (DM) and polymyositis (PM); in addition, to examine the association of anti-MDA5 Ab and the clinical characteristics of these patients. METHODS: Twenty consecutive existing patients with DM being followed up at the Rheumatology Clinic of Kwong Wah Hospital, Hong Kong were recruited. Twenty patients with PM were recruited from the same clinic as the controls...
January 30, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29373888/sarcoid-myopathy-mimicking-polymyositis-a-case-report-and-pool-analysis-of-the-literature-reviews
#20
Syahrul Sazliyana Shaharir, Adawiyah Jamil, Sumitro Kosasih, Low Soo Fin, Radhika Sridharan, Suria Hayati Md Pauzi
A 59-year-old man presented with proximal myopathy, myalgia, and weight loss, with the initial markedly elevated serum creatine kinase at 11,000 U/L. Due to his refusal for muscle biopsy, he was initially treated as inflammatory myositis and responded well with the corticosteroids. However, he subsequently had a relapse of the symptoms with more extensive systemic involvement, i.e., hypercalcemia, lymphadenopathy and subcutaneous nodules. Finally, a biopsy of the thigh and subcutaneous nodule revealed non-caseating granulomatous inflammation, consistent with sarcoidosis...
December 2017: Acta Medica Iranica
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