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https://www.readbyqxmd.com/read/28524083/idiopathic-inflammatory-myopathies-a-review-of-the-classification-and-impact-of-pathogenesis
#1
REVIEW
Dana E Mandel, Charles J Malemud, Ali D Askari
Idiopathic inflammatory myopathies (IIMs) are a group of autoimmune muscle diseases with significant morbidity and mortality. This review details and updates the pathogenesis and emerging importance of myositis-specific antibodies in the development of IIMs. An increase in the understanding of how these myositis-specific antibodies play a role in IIMs has led to the further categorization of IIMs from the traditional polymyositis versus dermatomyositis, to additional subcategories of IIMs such as necrotizing autoimmune myositis (NAM)...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28514969/endothelial-progenitor-cell-number-is-not-decreased-in-34-children-with-juvenile-dermatomyositis-a-pilot-study
#2
Dong Xu, Akadia Kacha-Ochana, Gabrielle A Morgan, Chiang-Ching Huang, Lauren M Pachman
OBJECTIVE: A pilot study to determine endothelial progenitor cells (EPC) number in children with Juvenile Dermatomyositis (JDM). METHODS: After obtaining informed consent, the EPC number from 34 fasting children with definite/probable JDM at various stages of therapy-initially untreated, active disease on medication and clinically inactive, off medication-was compared with 13 healthy fasting pediatric controls. The EPC number was determined by fluorescence activated cell sorting (FACS), CD34(+)/VEGFR2(+)/CD45dim(-), and assessed in conjunction with clinical variables: disease activity scores (DAS), duration of untreated disease (DUD), TNF-α allelic polymorphism (A/G) at the promoter region of -308, number of nailfold capillary end row loop (ERL) and von Willebrand factor antigen (vWF:Ag)...
May 17, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28508950/malignancy-as-a-comorbidity-in-rheumatic-diseases-a-retrospective-hospital-based-study
#3
Hai-Long Wang, Yong-Ming Zhou, Guang-Zhao Zhu, Zhu Yang, Bao-Jin Hua
Patients with Rheumatic diseases (RDs) are at an increased risk of malignancies compared with the general population. The aim of this study was to examine the relative frequency of several cancers in a single homogeneous cohort of patients with different RDs. Patients diagnosed with rheumatoid arthritis (RA), Ankylosing spondylitis (AS), Sjögren's syndrome (SS), systemic lupus erythematosus (SLE), systemic sclerosis (SSc), dermatomyositis (DM), or polymyositis were included. Out of 3982 adult residents admitted to the division of rheumatology, 61 malignancies were observed...
May 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28493173/idiopathic-inflammatory-myopathy-and-the-risk-of-venous-thromboembolism-a-meta-analysis
#4
Young Ho Lee, Gwan Gyu Song
This study aimed at analyzing published data on the association between idiopathic inflammatory myopathy and venous thromboembolism (VTE). We examined studies on VTE risk in patients with polymyositis (PM) and/or dermatomyositis (DM), in the MEDLINE, EMBASE, and Cochrane databases and via manual searches. We performed a meta-analysis on the relative risks (RRs) of VTE, pulmonary embolism (PE), and deep vein thrombosis (DVT) in these patients. Five studies, including 8858 patients with PM/DM met the inclusion criteria...
May 10, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28490218/evaluation-of-clinical-prognostic-factors-for-interstitial-pneumonia-in-anti-mda5-antibody-positive-dermatomyositis-patients
#5
Youhei Fujiki, Takuya Kotani, Kentaro Isoda, Takaaki Ishida, Takeshi Shoda, Shuzo Yoshida, Tohru Takeuchi, Shigeki Makino
OBJECTIVES: We retrospectively investigated clinical prognostic factors for interstitial pneumonia (IP) in anti-melanoma differentiation-associated gene 5 (MDA5) antibody (Ab)-positive dermatomyositis (DM) patients. METHODS: Subjects comprised 18 patients with anti-MDA5 Ab-positive DM-IP (9 survivors; 9 deaths). RESULTS: Initial serum albumin levels, ferritin levels, and ground-glass opacity (GGO) scores in the right middle lobes were significantly higher in the death group than in the survivor group (p = ...
May 11, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28488124/hypomyopathic-dermatomyositis-associated-with-interstitial-lung-disease-and-good-response-to-mycophenolate-mofetil-case-based-review
#6
REVIEW
Roberta Vilela Lopes Koyama, Tiago Kiyoshi Kitabayashi Braga, George Alberto da Silva Dias, Satomi Fujihara, Hellen Thais Fuzii, Gilberto Toshimitsu Yoshikawa
Hypomyopathic dermatomyositis (HDM) is a rare form of dermatomyositis (DM). Interstitial lung disease (ILD) associated with clinically amyopathic DM (CADM-ILD) or hypomyopathic DM (HDM-ILD) is a rare condition with a more unfavorable prognosis than ILD associated with classic DM (CDM-ILD). There is no effective treatment for HDM-ILD. A 62-year-old woman with a 6-month history of chronic polyarthritis and myalgia presented skin lesions characteristic of DM (erythematous lesion on extensor surface of elbows, Gottron's papules, V-neck sign) with no clinical muscle impairment (global muscle strength: grade 5)...
May 9, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28487565/chemokine-profiles-of-interstitial-pneumonia-in-patients-with-dermatomyositis-a-case-control-study
#7
Katsuhiro Oda, Takuya Kotani, Tohru Takeuchi, Takaaki Ishida, Takeshi Shoda, Kentaro Isoda, Shuzo Yoshida, Yasuichiro Nishimura, Shigeki Makino
Chemokines play an important role in the pathophysiology of dermatomyositis (DM) with interstitial pneumonia (IP). However, the relation between chemokines and the disease activity or prognosis of DM-IP has not been elucidated. We evaluated the serum C-C motif chemokine ligand (CCL) 2, Th1 chemokines (C-X-C motif chemokine ligand [CXCL] 9, CXCL10, CXCL11), and Th2 chemokine (CCL17) profiles of 30 patients, and examined the relation between these chemokines and the disease activity or prognosis of DM-IP. Initial serum CCL2 level was higher in the death group (P = 0...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28480196/mda5-autoantibody-another-indicator-of-clinical-diversity-in-dermatomyositis
#8
REVIEW
Richard D Sontheimer
Allenbach and colleagues have recently reported for the first time the results of an intriguing study of the histopathologic, immunopathologic and gene expression differences in muscle biopsy tissue from adult dermatomyositis (DM) patients who do and do not have circulating MDA5 autoantibodies (anti-MDA5). Anti-MDA5 were originally identified in a clinically-defined subset of DM patients whose disease was expressed predominately in the skin for unusually long periods of time without accompanying muscle weakness [i...
April 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28479486/integrated-diagnosis-project-for-inflammatory-myopathies-an-association-between-autoantibodies-and-muscle-pathology
#9
REVIEW
Shigeaki Suzuki, Akinori Uruha, Norihiro Suzuki, Ichizo Nishino
Inflammatory myopathies are a heterogeneous group of immune-mediated diseases that involve skeletal muscle as well as many other organs. The classification of inflammatory myopathies has been based on clinical diagnoses, pathological diagnoses, and autoantibodies, independently. The clinical phenotypes of inflammatory myopathies are characterized by various autoantibodies that are originally detected by RNA or protein immunoprecipitation. However, since the correlation between histological features and autoantibodies had not been fully elucidated, we created the "Integrated Diagnosis Project for Inflammatory Myopathies" in October 2010...
May 4, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28473041/diagnosis-and-management-of-immune-mediated-myopathies
#10
REVIEW
Margherita Milone
Immune-mediated myopathies (IMMs) are a heterogeneous group of acquired muscle disorders characterized by muscle weakness, elevated creatine kinase levels, and myopathic electromyographic findings. Most IMMs feature the presence of inflammatory infiltrates in muscle. However, the inflammatory exudate may be absent. Indeed, necrotizing autoimmune myopathy (NAM), also called immune-mediated necrotizing myopathy, is characterized by a necrotizing pathologic process with no or minimal inflammation in muscle. The recent discovery of antibodies associated with specific subtypes of autoimmune myopathies has played a major role in characterizing these diseases...
May 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28470010/positive-association-between-ankrd55-polymorphism-7731626-and-dermatomyositis-polymyositis-with-interstitial-lung-disease-in-chinese-han-population
#11
Liubing Li, Si Chen, Xiaoting Wen, Qian Wang, Guanting Lv, Jing Li, Funing Yang, Fengchun Zhang, Yongzhe Li
Single nucleotide polymorphisms (SNPs) in TNFSF4 and ANKRD55 genes have been shown to be associated with several autoimmune diseases, although whether these genes are susceptibility genes for dermatomyositis/polymyositis (DM/PM) has, to date, not been reported. This study aimed to investigate the potential associations of these SNPs with DM/PM in a Chinese Han population. Five SNPs in TNFSF4 (rs2205960, rs844644, and rs844648) and ANKRD55 (rs6859219, rs7731626) genes were genotyped using the SequenomMassArray system in 2297 Chinese individuals...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28463039/anti-ss-a-ro-antibody-positivity-as-a-risk-factor-for-relapse-in-patients-with-polymyositis-dermatomyositis
#12
Noriko Tatebe, Ken-Ei Sada, Yosuke Asano, Sonia Zeggar, Sumie Hiramatsu, Yoshia Miyawaki, Keiji Ohashi, Michiko Morishita, Takayuki Katsuyama, Eri Katsuyama, Haruki Watanabe, Mariko Narazaki, Katsue Watanabe, Tomoko Kawabata, Jun Wada
OBJECTIVE: The objective of this study is to elucidate predictors of relapse in patients with polymyositis and dermatomyositis (PM/DM). METHODS: Fifty PM/DM patients who achieved disease stabilization at Okayama University Hospital in 2004-2014 were enrolled retrospectively. Candidate predictors such as demographic factors, clinical symptoms, laboratory data, and treatment status were compared. RESULTS: The mean age of enrolled patients was 58 years; 34 were female...
May 2, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28461832/new-insights-into-antisynthetase-syndrome
#13
Cojocaru Manole, Cojocaru Inimioara Mihaela, Chicos Bogdan
Antisynthetase syndrome (ASS) is a rare chronic autoimmune disorder (2-3 times more common in women than in men), associated with interstitial lung disease (the most important feature), dermatomyositis (DM), and polymyositis (PM). The cause of ASS is unknown. Recent developments in immunology have improved our knowledge and it is now possible to classify ASS according to the presence of myositis specific autoantibodies. The hallmark of ASS is the presence of serum autoantibodies directed against aminoacyl-tRNA synthetases (anti-ARS involved in protein synthesis)...
June 2016: Mædica
https://www.readbyqxmd.com/read/28461123/the-long-term-outcome-of-interstitial-lung-disease-with-anti-aminoacyl-trna-synthetase-antibodies
#14
Kiminobu Tanizawa, Tomohiro Handa, Ran Nakashima, Takeshi Kubo, Yuji Hosono, Kizuku Watanabe, Kensaku Aihara, Kohei Ikezoe, Akihiko Sokai, Yoshinari Nakatsuka, Yoshio Taguchi, Kazuhiro Hatta, Satoshi Noma, Yoichiro Kobashi, Akihiko Yoshizawa, Toru Oga, Toyohiro Hirai, Kazuo Chin, Sonoko Nagai, Takateru Izumi, Tsuneyo Mimori, Michiaki Mishima
RATIONALE: Anti-aminoacyl transfer RNA synthetase antibodies (anti-ARS) are a group of myositis-specific autoantibodies that are detected in the sera of patients with polymyositis and dermatomyositis (PM/DM) and also in those of patients with idiopathic interstitial pneumonias without any connective tissue disease (CTD), including PM/DM. Although we reported the clinical characteristics of interstitial lung disease with anti-ARS antibodies (ARS-ILD) with and without PM/DM, the long-term prognosis of ARS-ILD remains undetermined...
April 15, 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28460448/anti-mda5-antibody-as-a-potential-diagnostic-and-prognostic-biomarker-in-patients-with-dermatomyositis
#15
Liubing Li, Qian Wang, Funing Yang, Chanyuan Wu, Si Chen, Xiaoting Wen, Chenxi Liu, Yongzhe Li
The presence of anti-MDA5 antibodies in serum represents an important biomarker in the diagnosis and prediction of prognosis for patients with idiopathic inflammatory myopathies (IIMs). Due to conflicting results that have been reported regarding the detection of anti-MDA5 antibodies, the goal of this study was to assess a potential association between the presence of anti-MDA5 antibodies and dermatomyositis/polymyositis (DM/PM), as well as the diagnostic and prognostic values of anti-MDA5 antibodies for DM/PM...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28458320/four-cases-of-pneumatosis-cystoides-intestinalis-complicated-by-connective-tissue-diseases
#16
Eiji Suzuki, Takashi Kanno, Momoko Hazama, Hiroko Kobayashi, Hiroshi Watanabe, Hiromasa Ohira
Pneumatosis cystoides intestinalis (PCI) is a rare disease that involves the presence of gas in the intestinal wall. Connective tissue disease (CTD) is a major cause of secondary PCI. In addition to the nature of CTDs, the use of prednisolone and some immunosuppressants, and the presence of complicating diseases such as diabetes mellitus, constipation and pulmonary diseases are involved in the development of PCI. This report describes four cases of PCI with different CTDs (granulomatosis with polyangiitis, rheumatoid arthritis, dermatomyositis, and overlap syndrome) and discusses the background of each patient and common risk factors for the occurrence of PCI...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28457044/paraneoplastic-dermatomyositis
#17
Isaac Christian Moses, V Uvaraj Muruganandham, P S Manshur, Priya Sreeraj, J Anandaraj, M Ananthi, Jagadeesan
Dermatomyositis and its association with malignancy is well known. Though many tumors like breast, ovary, lung carcinomas are reported to be associated with it, cervical carcinoma is a very rare one. Tumors in these patients are usually unmasked by abnormal findings in the medical history and physical examination. Here we report case of a postmenopausal female who presented with subacute onset of weakness of all four limbs. Treatment of the underlying tumor relieved the symptoms of dermatomyositis in our patient...
February 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28451794/comparison-of-long-term-prognosis-and-relapse-of-dermatomyositis-complicated-with-interstitial-pneumonia-according-to-autoantibodies-anti-aminoacyl-trna-synthetase-antibodies-versus-anti-melanoma-differentiation-associated-gene-5-antibody
#18
Kentaro Isoda, Takuya Kotani, Tohru Takeuchi, Takao Kiboshi, Kenichiro Hata, Takaaki Ishida, Kenichiro Otani, Takao Kamimori, Hiroshi Fujiwara, Takeshi Shoda, Shigeki Makino
The aim of this study was to investigate long-term prognosis and relapse of dermatomyositis complicated with interstitial pneumonia (DMIP) according to anti-aminoacyl tRNA synthetase (ARS) antibodies and anti-melanoma differentiation-associated gene 5 (MDA5) antibody. This retrospective study comprised 36 patients with DMIP who were divided into the anti-ARS antibody-positive group (ARS+) (n = 12), anti MDA5 antibody-positive group (MDA5+) (n = 11), double-negative group (ARS-/MDA5-) (n = 11), and double-positive group (ARS+/MDA5+) (n = 1)...
April 27, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28448730/retinal-manifestations-of-juvenile-dermatomyositis-case-report-of-bilateral-diffuse-chorioretinopathy-with-paracentral-acute-middle-maculopathy-and-review-of-the-literature
#19
Rene Y Choi, Russell J Swan, Aimee Hersh, Albert T Vitale
PURPOSE: To review a case of bilateral diffuse chorioretinopathy as a presenting sign of juvenile dermatomyositis (JDM) and review the literature regarding retinal manifestations associated with this disease. METHODS: Review of case record and literature regarding retinal manifestations related to juvenile dermatomyositis. RESULTS: A 13-year-old girl presented with bilateral diffuse chorioretinopathy as the presenting sign of juvenile dermatomyositis...
April 27, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28447208/squamous-cell-carcinoma-of-the-lung-associated-with-anti-jo1-antisynthetase-syndrome-a-case-report-and-review-of-the-literature
#20
REVIEW
G Boleto, J-M Perotin, J-P Eschard, J-H Salmon
Antisynthetase syndrome is a heterogeneous idiopathic inflammatory myopathy. Anti-Jo1 is the most common antibody found in this condition. Dermatomyositis is known to be associated with malignancy, but the association between antisynthetase syndrome and malignancy is not clearly established. We report a case of an association of squamous cell carcinoma of the lung and anti-Jo1 antisynthetase syndrome. A 67-year-old man presented with polyarthritis, muscle weakness of the pelvic girdle, "mechanic's hands," and weight loss...
April 26, 2017: Rheumatology International
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