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https://www.readbyqxmd.com/read/28893408/inflammatory-myopathy-associated-with-antimitochondrial-antibodies-a-distinct-phenotype-with-cardiac-involvement
#1
Jemima Albayda, Aamna Khan, Livia Casciola-Rosen, Andrea M Corse, Julie J Paik, Lisa Christopher-Stine
OBJECTIVE: In the context of clinical evaluations performed on our prospective myositis cohort, we noted a striking association of severe cardiac disease in myositis patients with antimitochondrial antibodies. We sought to review all cases of antimitochondrial antibody (AMA) associated myositis in our cohort to describe the clinical features of this disease subset. METHODS: We identified 7 patients with confirmed antimitochondrial antibodies who presented as an inflammatory myopathy...
June 13, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28879041/pulmonary-arterial-hypertension-a-novelty-in-idiopathic-inflammatory-myopathies-insights-and-first-experiences-with-vasoactive-therapy
#2
Kavish J Bhansing, Anton Vonk-Noordegraaf, Frank Pt Oosterveer, Piet Lcm van Riel, Madelon C Vonk
To characterise the different types of pulmonary hypertension (PH) among idiopathic inflammatory myopathy (IIM). A retrospective case series with assessment of PH by right heart catheterisation, extent of interstitial lung disease (ILD) and outcome of vasoactive therapy.The group of patients with IIM with PH (n=9) showed a median age at PH diagnosis of 62 years (IQR 48-71 years; eight women), seven diagnosed with polymyositis and two with dermatomyositis; median disease duration of 5.7 years and five patients with a positive anti-Jo1 antibody...
2017: RMD Open
https://www.readbyqxmd.com/read/28872085/-manifestations-of-the-connective-tissue-associated-interstitial-lung-disease-under-high-resolution-computed-tomography
#3
Hailan Li, Zeng Xiong, Jinkang Liu, Yisha Li, Bin Zhou
To analyze the features of the connective tissue associated interstitial lung disease (CTD-ILD) by high resolution computed tomography (HRCT).
 Methods: A total of 127 patients with CTD-ILD, who were diagnosed by clinic laboratory examination and pathology in Xiangya Hospital of Central South University form September 2013 to September 2015, were enrolled for this study. Their lung features of HRCT imaging were retrospectively analyzed.
 Results: The classifications for 127 patients were as follows: 36 cases of rheumatoid arthritis (28...
August 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28869080/altered-chemokine-receptor-expression-in-the-peripheral-blood-lymphocytes-in-polymyositis-and-dermatomyositis
#4
Ziwei Zhu, Chunshu Yang, Jianing Wang, Qianhui Feng, Qi Chen, Pingting Yang
OBJECTIVE: To examine the expression of chemokine receptors in different peripheral blood T-cell subsets in patients with polymyositis (PM) and dermatomyositis (DM). METHODS: We used flow cytometry to measure the frequencies of chemokinereceptors CXCR3 and CCR4 expression in the CD4(+) or CD8(+) lymphocytes. Enzyme linked immunosorbent assays were also used to measure the concentrations of C-X-C motif chemokine 10 (CXCL10), thymus and activation regulated chemokine (TARC) and macrophage derived chemokine (MDC)...
August 28, 2017: Cytokine
https://www.readbyqxmd.com/read/28866745/mortality-and-prognostic-factors-in-idiopathic-inflammatory-myositis-a-retrospective-analysis-of-a-large-multicenter-cohort-of-spain
#5
Laura Nuño-Nuño, Beatriz Esther Joven, Patricia E Carreira, Valentina Maldonado-Romero, Carmen Larena-Grijalba, Irene Llorente Cubas, Eva Gloria Tomero, María Carmen Barbadillo-Mateos, Paloma García De la Peña Lefebvre, Lucía Ruiz-Gutiérrez, Juan Carlos López-Robledillo, Henry Moruno-Cruz, Ana Pérez, Tatiana Cobo-Ibáñez, Raquel Almodóvar González, Leticia Lojo, María Jesús García De Yébenes, Francisco Javier López-Longo
The present study was undertaken to assess mortality, causes of death, and associated prognostic factors in a large cohort of patients diagnosed with idiopathic inflammatory myositis (IIM) from Spain. A retrospective longitudinal study was carried out in 467 consecutive patients with IIM, identified from 12 medical centers. Patients were classified as primary polymyositis, primary dermatomyositis (DM), overlap myositis, cancer-associated myositis (CAM), and juvenile idiopathic inflammatory myopathies. A total of 113 deaths occurred (24%) after a median follow-up time of 9...
September 2, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28864644/myositis-associated-interstitial-lung-disease-predictors-of-failure-of-conventional-treatment-and-response-to-tacrolimus-in-a-us-cohort
#6
Niharika Sharma, Michael S Putman, Rekha Vij, Mary E Strek, Anisha Dua
OBJECTIVE: Patients with myositis-associated interstitial lung disease (MA-ILD) are often refractory to conventional treatment, and predicting their response to therapy is challenging. Recent case reports and small series suggest that tacrolimus may be useful in refractory cases. METHODS: A retrospective cohort study of patients with MA-ILD comparing clinical characteristics between those who responded to or failed conventional treatment. In those who failed conventional treatment and received adjunctive tacrolimus, response to tacrolimus was measured by the improvement in myositis, ILD, and change in the dose of glucocorticoids...
September 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28864092/facts-and-controversies-in-mixed-connective-tissue-disease
#7
REVIEW
Julia Martínez-Barrio, Lara Valor, F Javier López-Longo
Mixed connective tissue disease (MCTD) is a systemic autoimmune rheumatic disease (SARD) characterised by the combination of clinical manifestations of systemic lupus erythematosus (SLE), cutaneous systemic sclerosis (SSc) and polymyositis-dermatomyositis, in the presence of elevated titers of anti-U1-RNP antibodies. Main symptoms of the disease are polyarthritis, hand oedema, Raynaud's phenomenon, sclerodactyly, myositis and oesophageal hypomobility. Although widely discussed, most authors today accept MCTD as an independent entity...
August 29, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28854220/automated-diagnosis-of-myositis-from-muscle-ultrasound-exploring-the-use-of-machine-learning-and-deep-learning-methods
#8
Philippe Burlina, Seth Billings, Neil Joshi, Jemima Albayda
OBJECTIVE: To evaluate the use of ultrasound coupled with machine learning (ML) and deep learning (DL) techniques for automated or semi-automated classification of myositis. METHODS: Eighty subjects comprised of 19 with inclusion body myositis (IBM), 14 with polymyositis (PM), 14 with dermatomyositis (DM), and 33 normal (N) subjects were included in this study, where 3214 muscle ultrasound images of 7 muscles (observed bilaterally) were acquired. We considered three problems of classification including (A) normal vs...
2017: PloS One
https://www.readbyqxmd.com/read/28846454/glis3-and-tyk2-single-nucleotide-polymorphisms-are-not-associated-with-dermatomyositis-polymyositis-in-chinese-han-population
#9
Liubing Li, Si Chen, Qian Wang, Chanyuan Wu, Xiaoting Wen, Funing Yang, Chenxi Liu, Fengchun Zhang, Yongzhe Li
AIM: Racial differences and genetic overlap have been shown to be responsible for the difference in susceptibility to dermatomyositis (DM)/polymyositis (PM) in a variety of populations. Single nucleotide polymorphisms (SNPs) in the GLI-similar 3 (GLIS3) and tyrosine kinase 2 (TYK2) genes have been associated with various autoimmune diseases. The aim of this study was to investigate whether SNPs in GLIS3 (rs7020673, rs10758593, and rs10814916) and TYK2 (rs280519, rs2304256, rs17000730, and rs280501) were associated with an increase in susceptibility to DM/PM in a Chinese Han population...
September 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28842784/neutrophil-extracellular-traps-may-contribute-to-interstitial-lung-disease-associated-with-anti-mda5-autoantibody-positive-dermatomyositis
#10
Yun Peng, Suhan Zhang, Yi Zhao, Yi Liu, Bing Yan
In dermatomyositis (DM), anti-melanoma differentiation-associated gene 5 (MDA5) autoantibody (autoAb) marks a subtype with low grade or absent muscle inflammation but frequent and rapidly progressive interstitial lung disease (ILD). The pathogenesis of ILD remains poorly unknown. The aim of the study is to explore whether neutrophil extracellular traps (NETs) are involved in the development of ILD in DM patients with anti-MDA5 autoAb. Patients with clinically amyopathic dermatomyositis (CADM, n = 20), classic dermatomyositis (cDM, n = 30), polymyositis (PM, n = 20), and healthy controls (HC, n = 20) were enrolled...
August 25, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28841590/cardiovascular-involvement-in-myositis
#11
Louise P Diederichsen
PURPOSE OF REVIEW: The purpose of this review is to provide an update on cardiovascular involvement in idiopathic inflammatory myopathy (IIM). Studies from the past 18 months are identified and reviewed. Finally, the clinical impact of these findings is discussed. RECENT FINDINGS: Epidemiological studies have revealed an increased risk of myocardial infraction and venous thromboembolism (VTE) - including deep venous thrombosis and pulmonary embolism - in adults with polymyositis or dermatomyositis compared to the general population, even after adjustment for potential confounders...
August 24, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28836555/upregulation-of-interleukin-21-and-interleukin-21-receptor-in-patients-with-dermatomyositis-and-polymyositis
#12
Tao Liu, Ying Hou, Ting-Jun Dai, Chuan-Zhu Yan
BACKGROUND: The immunopathologic mechanism underlying dermatomyositis (DM) and polymyositis (PM) remains poorly understood. Many cytokines play a pathogenic role in DM and PM. Interleukin 21 (IL-21) has a pleiotropic effect on inflammation regulation. This study aimed to detect the serum IL-21 level and investigate the expression of IL-21 and IL-21 receptor (IL-21R) in muscle tissues of patients with DM and PM. METHODS: Biopsied muscle samples were obtained from 11 patients with DM, 12 with PM, and six controls; mRNA levels of IL-21 and IL-21R were analyzed by real-time quantitative reverse transcription-polymerase chain reaction; and immunohistochemical staining was used to evaluate the protein expression of IL-21 and IL-21R...
September 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28832350/which-nonautoimmune-myopathies-are-most-frequently-misdiagnosed-as-myositis
#13
Andrew L Mammen
PURPOSE OF REVIEW: To discuss the spectrum of nonautoimmune myopathies that may be misdiagnosed as autoimmune myopathy. RECENT FINDINGS: Inherited myopathies, such as dysferlinopathy, calpainopathy, and facioscapulohumeral dystrophy may be misdiagnosed as autoimmune myopathy, especially when they have inflammatory muscle biopsies. Inclusion body myositis is frequently misdiagnosed as polymyositis when rimmed vacuoles are absent on muscle biopsy, and a careful neuromuscular evaluation is not performed...
August 19, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28831580/multiple-values-of-18-f-fdg-pet-ct-in-idiopathic-inflammatory-myopathy
#14
Yuan Li, Yunshan Zhou, Qian Wang
This study aimed to investigate the multiple values of (18)F-FDG PET/CT in detecting malignant tumors, evaluating myopathy, and determining interstitial lung disease in patients with idiopathic inflammatory myopathy (IIM). We retrospectively analyzed the data of 38 patients who were examined by (18)F-FDG PET/CT and eventually diagnosed as IIM. We also collected the data of another 22 cases with negative PET/CT as the control. Pulmonary HRCT images were acquired simultaneously with regular (18)F-FDG PET/CT imaging for each patient...
August 22, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28829792/effect-of-endurance-exercise-on-micrornas-in-myositis-skeletal-muscle-a-randomized-controlled-study
#15
Jessica F Boehler, Marshall W Hogarth, Matthew D Barberio, James S Novak, Svetlana Ghimbovschi, Kristy J Brown, Li Alemo Munters, Ingela Loell, Yi-Wen Chen, Heather Gordish-Dressman, Helene Alexanderson, Ingrid E Lundberg, Kanneboyina Nagaraju
OBJECTIVE: To identify changes in skeletal muscle microRNA expression after endurance exercise and associate the identified microRNAs with mRNA and protein expression to disease-specific pathways in polymyositis (PM) and dermatomyositis (DM) patients. METHODS: Following a parallel clinical trial design, patients with probable PM or DM, exercising less than once a week, and on stable medication for at least one month were randomized into two groups at Karolinska University Hospital: a 12-week endurance exercise group (n = 12) or a non-exercised control group (n = 11)...
2017: PloS One
https://www.readbyqxmd.com/read/28816394/a-review-of-inflammatory-idiopathic-myopathy-focusing-on-polymyositis
#16
REVIEW
K E N Clark, D A Isenberg
Inflammatory idiopathic myopathies are a group of autoimmune diseases affecting predominantly the proximal skeletal muscles, with raised muscle enzymes, with or without skin involvement and extramuscular organ involvement. Autoantibodies help to characterize patients into different clinical phenotypes. Successful treatment necessitates controlling inflammation early with corticosteroids and invariably requires additional immunosuppressive therapy. This review focuses on the aetiology, pathogenesis, clinical presentation, investigations and management of patients presenting with inflammatory idiopathic myopathies, predominantly focusing on polymyositis and antisynthetase syndrome...
August 17, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28794251/clinicopathologic-features-of-myositis-patients-with-cd8-mhc-1-complex-pathology
#17
Chiseko Ikenaga, Akatsuki Kubota, Masato Kadoya, Kenichiro Taira, Naohiro Uchio, Ayumi Hida, Meiko Hashimoto Maeda, Yu Nagashima, Hiroyuki Ishiura, Kenichi Kaida, Jun Goto, Shoji Tsuji, Jun Shimizu
OBJECTIVE: To determine the clinical features of myositis patients with the histopathologic finding of CD8-positive T cells invading non-necrotic muscle fibers expressing major histocompatibility complex class 1 (CD8-MHC-1 complex), which is shared by polymyositis (PM) and inclusion body myositis (IBM), in relation to the p62 immunostaining pattern of muscle fibers. METHODS: All 93 myositis patients with CD8-MHC-1 complex who were referred to our hospital from 1993 to 2015 were classified on the basis of the European Neuromuscular Center (ENMC) diagnostic criteria for IBM (Rose, 2013) or PM (Hoogendijk, 2004) and analyzed...
September 5, 2017: Neurology
https://www.readbyqxmd.com/read/28782262/relevance-of-ultrasonography-in-assessing-disease-activity-in-patients-with-idiopathic-inflammatory-myopathies
#18
Joana Sousa Neves, Daniela Santos Faria, Marcos Cerqueira, Maria Carmo Afonso, Filipa Teixeira
AIM: Idiopathic inflammatory myopathies (IIM) comprise a group of rare and heterogeneous diseases difficult to diagnose and follow up. Precise measures for assessing disease activity are not available at the moment. Our objective was to evaluate the usefulness of ultrasonography (US) as a monitoring tool in IIM. METHOD: The study evaluated IIM patients diagnosed and followed up from 2005 to 2015 in our department. Fifteen patients with a mean age of 52.2 ± 22...
August 7, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28782163/statin-associated-immune-mediated-necrotising-myopathy-a-new-zealand-case-series-showing-possible-over-representation-in-pacific-islanders
#19
Michelle Claudine Woolley, Simon Stebbings, John Highton
AIMS: To review incident cases of statin-associated immune mediated necrotising myopathy (IMNM) associated with anti-HMGCR antibodies in a single New Zealand centre, over a two year period. METHODS: Four incident cases of statin-associated IMNM were seen between 2014 and 2016. Their presentation, investigation, treatment and current response to treatment are summarised. Two of the four patients were Pacific Islanders despite a small pacific island population in the southern district health board (SDHB)...
August 7, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28781324/treatment-of-fulminant-giant-cell-myocarditis-associated-with-polymyositis-using-a-left-ventricular-assist-device-and-subsequent-corticosteroid-and-immunosuppressive-therapy-leading-to-remission
#20
Junichi Ooka, Hidekazu Tanaka, Yutaka Hatani, Yukio Tsuji, Ryo Takeshige, Shumpei Mori, Kensuke Matsumoto, Shigeo Hara, Hiroshi Tanaka, Yutaka Okita, Ken-Ichi Hirata
A 58-year-old man with a recent history of generalized myalgia and muscle weakness was transferred to our hospital because of acute progressive dyspnea. The patient underwent left ventricular (LV) assist device (LVAD) implantation due to cardiogenic shock with a LV ejection fraction (LVEF) of 6%. The histological findings obtained from LV apex showed the infiltration of multinucleated giant cells and severe myocardial contusion. Combining this histological finding with our experienced neurologists comments, resulted in a final diagnosis of fulminant giant cell myocarditis associated with polymyositis...
August 15, 2017: Internal Medicine
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