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Polymyositis

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https://www.readbyqxmd.com/read/28229828/successful-treatment-of-a-refractory-dysbiotic-intestinal-pseudo-obstruction-in-a-patient-with-systemic-sclerosis-polymyositis-overlap-syndrome-by-intravenous-immunoglobulin-administration-possibly-related-to-gut-flora-normalisation
#1
Risa Kamei, Toshifumi Yamaoka, Kuniko Ikinaga, Hiroyuki Murota, Kentaro Shimizu, Ichiro Katayama
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January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28225510/effective-use-of-calcineurin-inhibitor-in-combination-therapy-for-interstitial-lung-disease-in-patients-with-dermatomyositis-and-polymyositis
#2
Yasuhiro Shimojima, Wataru Ishii, Masayuki Matsuda, Dai Kishida, Shu-Ichi Ikeda
OBJECTIVE: The current study demonstrated the potential use of calcineurin inhibitor (CNI) in combination therapy for interstitial lung disease (ILD) complicated with dermatomyositis (DM) and polymyositis (PM). METHODS: Thirty DM/PM patients with ILD were enrolled in this study. Continuous intravenous administration of cyclosporine A (IV-CsA) was simultaneously started with corticosteroid in patients presenting more than two respiratory distress factors as follows: <70 mmHg of PaO2, percentage of vital capacity <70%, and/or exertional dyspnea...
March 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28218333/effects-of-exercise-therapy-on-polymyositis-complicated-by-post-myocarditis-cardiomyopathy-a-case-report
#3
Hidetoshi Yanagi, Naohisa Shindo
BACKGROUND: A 42-year-old woman with chronic polymyositis complicated by post-myocarditis cardiomyopathy underwent supervised and unsupervised exercise therapy with staged increases in intensity. METHODS: Supervised exercise therapy, which included adopted standards for patients with heart failure, was performed for 6 months. After one month, unsupervised exercise therapy was commenced, in the form of 15 min walking, the duration of which was increased to 30 min after 2 months...
February 16, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28210638/an-unusual-suspect-causing-hypoxemic-respiratory-failure
#4
Masooma Aqeel, Bjorn Batdorf, Horatiu Olteanu, Jayshil J Patel
Introduction: Antisynthetase syndrome (ASS) is characterized by the presence of anti-Jo-1 antibodies in conjunction with clinical findings of fever, polymyositis-dermatomyositis, and interstitial lung disease (ILD). Inflammatory myopathies carry a high risk of malignancy, but this association is less well outlined in ASS. We present the case of a patient with ASS who developed non-Hodgkin's lymphoma with acute hypoxemic respiratory failure. Case Presentation: A 44-year-old female with ASS presented with acute hypoxemic respiratory failure...
January 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28210273/isolated-ro52-antibodies-as-immunological-marker-of-a-mild-phenotype-of-undifferentiated-connective-tissue-diseases
#5
Ana Alonso-Larruga, Sagrario Bustabad, José Antonio Navarro-Gonzálvez, Beatriz Rodríguez-Lozano, Andrés Franco, Yvelise Barrios
The term undifferentiated connective tissue disease (UCTD) is used to describe undiagnosed patients that do not fulfill classification criteria for definite connective tissue disease (Systemic Lupus, Systemic Sclerosis, Sjögren Syndrome, and Dermatomyositis/Polymyositis). It is important to find serological markers as predictors of the evolution or severity of these diseases. The objective of this retrospective study was to investigate if there was a milder subgroup of UCTD with a special clinical profile consisting only in the presence of anti-Ro52 autoantibodies...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/28194428/identification-of-palmitoleic-acid-controlled-by-mtor-signaling-as-a-biomarker-of-polymyositis
#6
Geng Yin, Ying Wang, Xiao-Min Cen, Yuan Yang, Min Yang, Qi-Bing Xie
Polymyositis (PM) is a chronic disease characterized by muscle pain, weakness, and increase in muscle-related enzymes, accompanied with inflammations in lymphocytes. However, it is not well understood how the molecular alternations in lymphocytes contribute to the development of polymyositis. The mechanistic target of rapamycin (mTOR) signaling is the central regulator of metabolism and inflammation in mammalian cells. Based on previous studies, we proposed that mTOR signaling may control inflammatory reactions via lipid metabolism...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28194064/therapeutic-plasma-exchange-in-patients-with-neurologic-disorders-review-of-63-cases
#7
Anil Tombak, Mehmet Ali Uçar, Aydan Akdeniz, Arda Yilmaz, Hakan Kaleagası, Mehmet Ali Sungur, Eyup Naci Tiftik
Therapeutic plasma exchange (TPE) is a procedure that reduces circulating autoantibodies of the patients. TPE is commonly used in neurological disorders where autoimmunity plays a major role. We report our experience with regard to the indications, adverse events and outcomes of plasma exchange in neurological disorders. Sixty-three patients were included to this retrospective study. Median age was 48 years (range 1-85), there was a predominance of males. Neurological indications included Guillain-Barrè syndrome (n = 22), myasthenia gravis (n = 21), chronic inflammatory demyelinating polyneuropathy (n = 7), polymyositis (n = 3), multifocal motor neuropathy (n = 2), acute disseminated encephalomyelitis (n = 2), neuromyelitis optica (n = 2), multiple sclerosis (n = 2), limbic encephalitis (n = 1) and transverse myelitis (n = 1)...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28183315/pyruvate-kinase-m2-and-the-mitochondrial-atpase-inhibitory-factor-1-provide-novel-biomarkers-of-dermatomyositis-a-metabolic-link-to-oncogenesis
#8
Fulvio Santacatterina, María Sánchez-Aragó, Marc Catalán-García, Glòria Garrabou, Cristina Nuñez de Arenas, Josep M Grau, Francesc Cardellach, José M Cuezva
BACKGROUND: Metabolic alterations play a role in the development of inflammatory myopathies (IMs). Herein, we have investigated through a multiplex assay whether proteins of energy metabolism could provide biomarkers of IMs. METHODS: A cohort of thirty-two muscle biopsies and forty plasma samples comprising polymyositis (PM), dermatomyositis (DM) and sporadic inclusion body myositis (sIBM) and control donors was interrogated with monoclonal antibodies against proteins of energy metabolism using reverse phase protein microarrays (RPPA)...
February 10, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28181122/association-between-rheumatic-diseases-and-cancer-results-from-a-clinical-practice-cohort-study
#9
Mattia Bellan, Enrico Boggio, Daniele Sola, Antonello Gibbin, Alessandro Gualerzi, Serena Favretto, Giulia Guaschino, Ramona Bonometti, Roberta Pedrazzoli, Mario Pirisi, Pier Paolo Sainaghi
The association between cancer and immune-mediated rheumatic conditions is controversial, especially as far as polymyalgia rheumatica (PMR) is concerned. Furthermore, no clinical feature has been shown to be suggestive of a paraneoplastic rheumatic syndrome. With the present study, we aim to address both these issues. The study population comprised N = 1750 patients, including N = 100 with PMR, who attended our tertiary immuno-rheumatology clinic between January 1, 2005 and November 30, 2012. A rheumatic disease was deemed paraneoplastic if cancer had been diagnosed in the 2 years preceding or following its onset...
February 8, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28148694/myalgia-in-patients-with-dermatomyositis-and-polymyositis-is-attributable-to-fasciitis-rather-than-myositis-a-retrospective-study-of-32-patients-who-underwent-histopathological-examinations
#10
Kentaro Noda, Ken Yoshida, Taro Ukichi, Kazuhiro Furuya, Kenichiro Hirai, Isamu Kingetsu, Daitaro Kurosaka
OBJECTIVE: To determine the association between fasciitis and the clinical variables in patients with dermatomyositis (DM) and polymyositis (PM). METHODS: We retrospectively reviewed the medical records of 32 patients (24 DM, 8 PM) with newly diagnosed DM and PM and in whom fascia and muscle specimens were histopathologically examined. The relationship between fasciitis and the clinical variables was statistically analyzed. These included age, sex, myalgia, muscle weakness, creatine kinase (CK) and aldolase activities, anti-Jo1 antibody, interstitial lung disease, and malignancy...
February 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28143550/spectrum-of-paediatric-rheumatic-diseases-in-nigeria
#11
Babatunde Hakeem Olaosebikan, Olufemi Oladipo Adelowo, Barakat Adeola Animashaun, Richard Oluyinka Akintayo
BACKGROUND: Paediatric rheumatology service in Sub-Sahara African is virtually not available as there is a shortage of paediatric rheumatologists and other rheumatology health professionals. We aim to describe the clinical spectrum and the frequencies of paediatric rheumatic diseases (PRDs) in Lagos State University Teaching Hospital (LASUTH), Lagos, Nigeria. METHODS: This is a retrospective review of patients with PRDs seen over a five year period (March 2010 to February 2016) at the rheumatology clinic and children ward of LASUTH...
January 31, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28134083/direct-suppression-of-autoaggressive-cd8-t-cells-with-cd80-86-blockade-in-cd8-t-cell-mediated-polymyositis-models-of-mice
#12
Hisanori Hasegawa, Kimito Kawahata, Fumitaka Mizoguchi, Naoko Okiyama, Nobuyuki Miyasaka, Hitoshi Kohsaka
OBJECTIVES: CD80/86 blockade to inhibit CD28 costimulation suppressed alloreactive human and murine CD4+ T cells but not alloreactive CD8+ T cells. In contrast, CD28 costimulation augments CD8+ T cell-mediated cell lysis in antigen-nonspecific stimulation. The present study was conducted to discern whether the CD80/86 blockade exerts therapeutic effects on CD8+ T cell-mediated polymyositis (PM) models of mice and whether the effects could be attributable to direct suppression of autoantigen-specific CD8+ T cells...
January 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28103926/clinical-significance-of-soluble-cd163-in-polymyositis-related-or-dermatomyositis-related-interstitial-lung-disease
#13
Yasunori Enomoto, Yuzo Suzuki, Hironao Hozumi, Kazutaka Mori, Masato Kono, Masato Karayama, Kazuki Furuhashi, Tomoyuki Fujisawa, Noriyuki Enomoto, Yutaro Nakamura, Naoki Inui, Daisuke Suzuki, Noriyoshi Ogawa, Ran Nakashima, Tsuneyo Mimori, Toshihide Iwashita, Takafumi Suda
BACKGROUND: Macrophage activation is involved in the pathogenesis of polymyositis (PM)/dermatomyositis (DM). CD163, a scavenger receptor expressed on the surface of activated macrophages, mediates anti-inflammatory functions. This study aimed to evaluate the clinical significance of soluble CD163 (sCD163) in PM/DM-related interstitial lung disease (ILD). METHODS: The main subjects were 48 patients with PM/DM-related ILD. As controls, 10 patients with PM/DM without ILD and 20 healthy volunteers were enrolled...
January 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28101185/hypokalemic-myopathy-in-primary-aldosteronism-a-case-report
#14
Chuifen Wu, Jun Xin, Minghua Xin, Hai Zou, Lie Jing, Caoyong Zhu, Wenhui Lei
Primary aldosteronism (PA) is a rare disorder. The majority of patients with PA present with typical features and are easily diagnosed. This disorder is usually diagnosed with hypokalemia, hypertension or an adrenal mass. However, patients with atypical symptoms may present a challenge for diagnosis and treatment. In the present study, a case of PA is described that presented with hypokalemic myopathy simulating polymyositis. The patient was a 44-year-old woman who presented with weakness and difficulty walking...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099331/atorvastatin-induced-necrotizing-autoimmune-myositis-an-emerging-dominant-entity-in-patients-with-autoimmune-myositis-presenting-with-a-pure-polymyositis-phenotype
#15
Yves Troyanov, Océane Landon-Cardinal, Marvin J Fritzler, José Ferreira, Ira N Targoff, Eric Rich, Michelle Goulet, Jean-Richard Goulet, Josiane Bourré-Tessier, Yves Robitaille, Julie Drouin, Alexandra Albert, Jean-Luc Senécal
The general aim of this study was to evaluate the disease spectrum in patients presenting with a pure polymyositis (pPM) phenotype. Specific objectives were to characterize clinical features, autoantibodies (aAbs), and membrane attack complex (MAC) in muscle biopsies of patients with treatment-responsive, statin-exposed necrotizing autoimmune myositis (NAM). Patients from the Centre hospitalier de l'Université de Montréal autoimmune myositis (AIM) Cohort with a pPM phenotype, response to immunosuppression, and follow-up ≥3 years were included...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28076913/use-of-intravenous-immunoglobulin-therapy-for-myositis-an-audit-in-south-australian-patients
#16
Caroline Foreman, Paul Russo, Noelene Davies, Pravin Hissaria, Susanna Proudman, Tiffany Hughes, Vidya Limaye
In South Australia, between 2000 and 2014, 57 patients with idiopathic inflammatory myositis (IIM) were treated with intravenous immunoglobulin (IVIg). We reviewed disease characteristics to determine predictors of response to therapy and IVIg dosing and duration to identify opportunities to rationalise IVIg use. Patients with dermatomyositis/polymyositis had a response rate of 77% and were more likely than inclusion body myositis to respond to therapy. Consideration should be given to the use of the lowest possible dose of IVIg and to the undertaking of trials of cessation of IVIg in patients with stable IIM...
January 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28053302/polymyositis-without-beneficial-response-to-steroid-therapy-should-miyoshi-myopathy-be-a-differential-diagnosis
#17
Renata Siciliani Scalco, Paulo José Lorenzoni, David S Lynch, William Alves Martins, Heinz Jungbluth, Ros Quinlivan, Jefferson Becker, Henry Houlden
BACKGROUND Miyoshi myopathy (MM) is an autosomal-recessive muscle disorder caused by mutations in the DYSF gene. Clinical features and histopathological changes in dysferlinopathies may mimic inflammatory myopathies and a high degree of clinical suspicion is required to guide the genetic investigation. CASE REPORT We report the case of a 16-year-old male who presented with severe bilateral calf pain and elevated CK levels (15 000 IU/l) who was on prolonged steroid therapy prompted by the clinical suspicion of inflammatory myopathy...
January 5, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28039554/serum-level-of-dnase1l3-in-patients-with-dermatomyositis-polymyositis-systemic-lupus-erythematosus-and-rheumatoid-arthritis-and-its-association-with-disease-activity
#18
Qi Zhao, Chunshu Yang, Jianing Wang, Yujia Li, Pingting Yang
DNase1l3 is an endonuclease to degrade the chromatin of apoptotic or necrotic cells. Serum DNase1l3 may fulfill the function of clearance of chromatin released into the circulation by dying cells, which can trigger autoimmune responses. To date, it remains unclear whether serum DNase1l3 level associates with the pathogenesis of autoimmune diseases. Sixty-eight patients with dermatomyositis/polymyositis (DM/PM, n = 30), systemic lupus erythematosus (SLE, n = 20) and rheumatoid arthritis (RA, n = 18), as well as 26 healthy blood donors were enrolled in the present study...
December 30, 2016: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/28039312/sarcoplasmic-mxa-expression-a-valuable-marker-of-dermatomyositis
#19
Akinori Uruha, Atsuko Nishikawa, Rie S Tsuburaya, Kohei Hamanaka, Masataka Kuwana, Yurika Watanabe, Shigeaki Suzuki, Norihiro Suzuki, Ichizo Nishino
OBJECTIVE: To evaluate the diagnostic value of myxovirus resistance A (MxA) expression in the cytoplasm of myofibers in the diagnosis of dermatomyositis (DM). METHODS: We assessed the sensitivity and specificity of the sarcoplasmic expression of MxA in muscles with DM by immunohistochemistry in consecutive cases of DM (n = 34) and other idiopathic inflammatory myopathies (n = 120: 8 with polymyositis, 16 with anti-tRNA-synthetase antibody-associated myositis, 46 with immune-mediated necrotizing myopathy, and 50 with inclusion body myositis) and compared them with conventional pathologic hallmarks of DM, including perifascicular atrophy (PFA) and membrane attack complex (MAC) deposition on endomysial capillaries...
December 30, 2016: Neurology
https://www.readbyqxmd.com/read/28035084/sphingosine-1-phosphate-receptor-modulators-and-drug-discovery
#20
REVIEW
Soo-Jin Park, Dong-Soon Im
Initial discovery on sphingosine 1-phosphate (S1P) as an intracellular second messenger was faced unexpectedly with roles of S1P as a first messenger, which subsequently resulted in cloning of its G protein-coupled receptors, S1P₁₋₅. The molecular identification of S1P receptors opened up a new avenue for pathophysiological research on this lipid mediator. Cellular and molecular in vitro studies and in vivo studies on gene deficient mice have elucidated cellular signaling pathways and the pathophysiological meanings of S1P receptors...
January 1, 2017: Biomolecules & Therapeutics
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