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Polymyositis

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https://www.readbyqxmd.com/read/28725427/progressive-hypoventilation-due-to-mixed-cd8-and-cd4-lymphocytic-polymyositis-following-tremelimumab-durvalumab-treatment
#1
Sooraj John, Scott J Antonia, Trevor A Rose, Robert P Seifert, Barbara A Centeno, Aaron S Wagner, Ben C Creelan
BACKGROUND: The combination of CTLA-4 and PD-L1 inhibitors has a manageable adverse effect profile, although rare immune-related adverse events (irAE) can occur. CASE PRESENTATION: We describe an autoimmune polymyositis following a partial response to combination tremelimumab and durvalumab for the treatment of recurrent lung adenocarcinoma. Radiography revealed significant reduction in all metastases; however, the patient developed progressive neuromuscular hypoventilation due to lymphocytic destruction of the diaphragmatic musculature...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28720599/hyperacute-muscle-weakness-in-an-unusual-coexistence-of-antisignal-recognition-particle-and-anti-mi-2-antibodies
#2
Richard Oluyinka Akintayo, Olanrewaju Festus Agbola, Abiodun Waliyullah Adeyemo, Olufemi Adelowo
Idiopathic inflammatory myopathies are a heterogeneous group of systemic diseases characterised by variable phenotypes of chronic progressive muscle weakness. Myositis-specific antibodies (MSAs) include antibodies to cytoplasmic signal recognition particle (SRP) and various tRNA synthetases as well as the nuclear helicase protein Mi-2. These antibodies are typically found only in a fraction of true myositis cases and they tend to be mutually exclusive. Few cases of coexistence of two MSAs in the same patient have been reported and these cases all involve an antisynthetase antibody coexisting with either anti-SRP or anti-Mi-2 antibody...
July 18, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28717078/dermatomyositis-induced-by-hepatitis-b-virus-related-hepatocellular-carcinoma-a-case-report-and-review-of-the-literature
#3
Jen-Wei Chou, Yin-Lan Lin, Ken-Sheng Cheng, Po-Yuan Wu, Teressa Reanne Ju
Dermatomyositis or polymyositis as a paraneoplastic syndrome of hepatocellular carcinoma (HCC) is an uncommon event. Few cases have been reported in the literature. We herein report the case of a 55-year-old man with chronic hepatitis B and alcoholism who presented with skin rash. Abdominal computed tomography revealed multiple hypervascular liver tumors consistent with HCC. He subsequently developed dysphagia with proximal limb weakness. Laboratory tests and electromyography demonstrated inflammatory myopathy...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28716137/progressive-hypoventilation-due-to-mixed-cd8-and-cd4-lymphocytic-polymyositis-following-tremelimumab-durvalumab-treatment
#4
Sooraj John, Scott J Antonia, Trevor A Rose, Robert P Seifert, Barbara A Centeno, Aaron S Wagner, Ben C Creelan
BACKGROUND: The combination of CTLA-4 and PD-L1 inhibitors has a manageable adverse effect profile, although rare immune-related adverse events (irAE) can occur. CASE PRESENTATION: We describe an autoimmune polymyositis following a partial response to combination tremelimumab and durvalumab for the treatment of recurrent lung adenocarcinoma. Radiography revealed significant reduction in all metastases; however, the patient developed progressive neuromuscular hypoventilation due to lymphocytic destruction of the diaphragmatic musculature...
July 18, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28715432/an-efficacy-analysis-of-whole-body-magnetic-resonance-imaging-in-the-diagnosis-and-follow-up-of-polymyositis-and-dermatomyositis
#5
Zhen-Guo Huang, Bao-Xiang Gao, He Chen, Min-Xing Yang, Xiao-Liang Chen, Ran Yan, Xin Lu, Kai-Ning Shi, Queenie Chan, Guo-Chun Wang
OBJECTIVES: To evaluate the value of whole-body magnetic resonance imaging (WBMRI) in diagnosing muscular and extra muscular lesions in patients with polymyositis (PM) and dermatomyositis (DM). METHODS: A retrospective analysis of WBMRI data from PM/DM patients who met the Bohan and Peter diagnostic criteria was performed. X2 test was used to compare the rate of positive diagnosis of newly diagnosed patients using WBMRI, serum creatine kinase test, and EMG. McNemar test was used to compare the performance of WBMRI and chest CT in detecting interstitial lung disease (ILD)...
2017: PloS One
https://www.readbyqxmd.com/read/28711882/hla-drb1-alleles-as-genetic-risk-factors-for-the-development-of-anti-mda5-antibodies-in-patients-with-dermatomyositis
#6
Zhiyong Chen, Yan Wang, Masataka Kuwana, Xue Xu, Wei Hu, Xuebing Feng, Hong Wang, Akinori Kimura, Lingyun Sun
OBJECTIVE: Patients with polymyositis/dermatomyositis (PM/DM) who express anti-melanoma differentiation associated protein 5 (anti-MDA5) antibodies frequently present with interstitial lung disease (ILD). The aim of this study was to investigate the association of HLA-DRB1 with anti-MDA5 expression in PM/DM. METHODS: The frequency of DRB1 alleles was compared among 70 patients with PM, 104 patients with DM, and 400 healthy controls in a Han Chinese population. RESULTS: Frequencies of DRB1*04:01 [17...
July 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28711881/clinical-utility-of-ykl-40-in-polymyositis-dermatomyositis-associated-interstitial-lung-disease
#7
Hironao Hozumi, Tomoyuki Fujisawa, Noriyuki Enomoto, Ran Nakashima, Yasunori Enomoto, Yuzo Suzuki, Masato Kono, Masato Karayama, Kazuki Furuhashi, Akihiro Murakami, Naoki Inui, Yutaro Nakamura, Tsuneyo Mimori, Takafumi Suda
OBJECTIVE: Interstitial lung disease (ILD) is involved in polymyositis/dermatomyositis (PM/DM), a disease associated with poor prognoses. Chitinase-3-like-1 protein (YKL-40) has pleiotropic biological activities involved in inflammation, cell proliferation, and tissue remodeling; however, the clinical application of YKL-40 remains limited. We investigated the clinical significance of YKL-40 in PM/DM-ILD. METHODS: Sixty-nine consecutive patients with PM/DM-ILD and 34 healthy controls were analyzed...
July 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28690947/autoamputation-and-polyneuropathy-in-mixed-connective-tissue-disorder-a-case-report
#8
Syeda Naqvi, Vikash Talib, Razia Aijaz, Zeeshan Ali, Shehroz Bashir, Syed Masroor Ahmad, Shabnam Naveed
Mixed connective tissue disorder (MCTD) is a multisystem disease with overlapping features of other autoimmune diseases, such as systemic lupus erythematosus (SLE), myositis, rheumatoid arthritis, and scleroderma. MCTD presents with a distinctive antibody in serum known as U1-ribonucleoprotein (RNP). MCTD is quite rare as compared to other connective tissue disorders like SLE, systemic sclerosis, dermatomyositis, and polymyositis. We describe a case of MCTD in a young Asian female of 30 year old. This case highlights rare co-existence of polyneuropathy and autoamputation in MCTD disorder...
June 5, 2017: Curēus
https://www.readbyqxmd.com/read/28687435/evaluation-of-coexisting-polymyositis-in-feline-myasthenia-gravis-a-case-series
#9
Vincent Mayousse, Aurélien Jeandel, Nicolas Blanchard-Gutton, Catherine Escriou, Kirsten Gnirs, G Diane Shelton, Stéphane Blot
Acquired myasthenia gravis (MG) is relatively uncommon in cats. In humans, MG may be associated with other immune-mediated disorders, in particular polymyositis (PM). In this study, we described in-depth electrodiagnostic findings and pathological changes in muscles of cats diagnosed with MG, and assessed the presence of concurrent PM. Six cats with confirmed acetylcholine receptor antibody seropositive MG, and two suspected cases with clinical signs and electrophysiological changes consistent with MG, were reviewed...
June 16, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28687351/prevalence-of-anti-nt5c1a-antibodies-in-japanese-patients-with-autoimmune-rheumatic-diseases-in-comparison-with-other-patient-cohorts
#10
Yoshinao Muro, Hirotaka Nakanishi, Masahisa Katsuno, Michihiro Kono, Masashi Akiyama
BACKGROUND: Sporadic inclusion body myositis (sIBM) is usually classified as an idiopathic inflammatory myopathies. Although the diagnosis of sIBM is sometimes challenging, recent studies have shown that the autoantibodies against cytosolic 5'-nucleotidase 1A (NT5C1A) are the possible diagnostic biomarker for sIBM. Few reports have shown the frequencies of anti-NT5C1A antibodies in systemic autoimmune rheumatic diseases (SARDs) using large cohorts of SARDs. METHODS: Serum samples obtained from 314 patients including dermatomyositis (DM) (n=144), systemic lupus erythematosus (SLE) (n=50), systemic sclerosis (SSc) (n=50), Sjögren's syndrome (SS) (n=50), polymyositis (PM) (n=10) and mixed connective tissue disease (n=10), and healthy controls (n=42) in addition to 10 patients with typical sIBM were analysed for the presence of autoantibodies using full-length recombinant NT5C1A ELISA...
July 4, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28681585/a-simple-method-for-removing-low-density-granulocytes-to-purify-t-lymphocytes-from-peripheral-blood-mononuclear-cells
#11
Si-Gong Zhang, Yu-Xin Song, Xiao-Ming Shu, Hai-Li Shen, Han-Bo Yang, Rui-Xue Duo, Guo-Chun Wang
OBJECTIVE: Low-density granulocytes (LDGs) can form neutrophil extracellular traps (NETs) spontaneously and excessively. When peripheral blood mononuclear cells (PBMCs) are used for studying T lymphocytes, LDGs contained in the PBMCs may decrease the threshold of activating T lymphocytes by forming NETs. This study focused on the profiles of LDGs in common autoimmune diseases and methods for removing LDGs from PBMCs. METHODS: The percentages of LDGs in PBMCs from 55 patients with dermatomyositis (DM), 15 with polymyositis (PM), 42 with rheumatoid arthritis (RA), 25 with systemic lupus erythematosus (SLE), and 19 healthy controls were determined by flow cytometry...
July 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28673815/autoantibodies-to-su-argonaute-2-in-japanese-patients-with-inflammatory-myopathy
#12
Mariko Ogawa-Momohara, Yoshinao Muro, Minoru Satoh, Masashi Akiyama
BACKGROUND: Anti-Su antibodies are found in 5-20% of cases of various systemic autoimmune rheumatic diseases and in 5-10% of dermatomyositis (DM)/polymyositis (PM) patients. In 2006, the 100kDa Su antigen was identified as argonaute2 (Ago2), and it was found to play a major role in RNA interference. However, immunoprecipitation (IP) remains the main method for detecting anti-Su and the clinical significance of the antibodies is uncertain. METHODS: Sera from patients with DM/PM (n=224) were screened by an ELISA that uses recombinant biotinylated Ago2 protein...
June 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28672937/is-it-cardiac-involvement-mimicking-acute-myocardial-infarction-in-idiopathic-inflammatory-myopathy
#13
Yizhi Xiao, Hui Luo, Shiqing Liu, Liping Duan, Yunhui You, Hongjun Zhao, Xiaoxia Zuo
Idiopathic inflammatory myopathy (IIM) comprises a group of rare systemic diseases characterized by progressive weakness of the symmetrical proximal limb muscles, elevated muscle enzymes, inflammation or necrosis on muscle biopsy. IIM may impair the function of multiple organs, particularly the heart. However, it rarely manifests as acute myocardial infarction (AMI) at initial presentation. The present study described the case of a 39-year-old woman with AMI, whose muscle biopsy on the left arm conformed to polymyositis...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28668440/state-of-the-art-on-nailfold-capillaroscopy-in-dermatomyosistis-and-polymyositis
#14
REVIEW
Chiara Bertolazzi, Maurizio Cutolo, Vanessa Smith, Marwin Gutierrez
OBJECTIVES: To provide an overview of the main naifold capillaroscopy (NFC) changes described in dermatomyositis (DM) and polymyositis (PM) and to discuss the current evidence supporting its clinical relevance and applications in daily practice. METHODS: All relevant literature in the field of NFC and DM and PM published in the last 30 years has been systematically reviewed. A systematic research was performed in the electronic databases PubMed and EMBASE. RESULTS: A total of 540 publications were identified according to the proposed filters and 27 were included for the review...
June 28, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28668260/-amyopathic-dermatomyositis-dm-with-anti-mda5-antibodies-associated-with-bullous-pemphigoid-sj%C3%A3-gren-syndrome-and-gastric-malt-lymphoma
#15
B Garcia, F Dabouz, L Pascal, M Gillard, P Modiano
BACKGROUND: The inflammatory myopathies are a heterogeneous group of muscle diseases and comprise polymyositis, dermatomyositis (DM), myopathies associated with cancers, necrotising myositis and inclusion body myositis. DM occasionally exhibits few or no muscular signs: i.e. hypomyopathic/amyopathic DM. Anti-MDA5 dermatomyositis (DM) is a rare form of dermatomyositis that is frequently amyopathic; the prognosis is linked mainly to pulmonary involvement. PATIENTS AND METHODS: A 69-year-old woman treated for mucosa-associated lymphoid tissue (MALT) gastric lymphoma was referred for a bullous eruption...
June 28, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28660550/clinical-and-economic-evaluation-of-repository-corticotropin-injection-a-narrative-literature-review-of-treatment-efficacy-and-healthcare-resource-utilization-for-seven-key-indications
#16
REVIEW
Michael Philbin, John Niewoehner, George J Wan
INTRODUCTION: Repository corticotropin injection (RCI; H.P. Acthar(®) Gel; Mallinckrodt Pharmaceuticals Inc., Hampton, NJ) is a highly purified, prolonged-release porcine preparation of adrenocorticotropic hormone (ACTH) analogue that is FDA-approved for treatment of 19 autoimmune and inflammatory disorders. The diverse physiological actions of RCI at the melanocortin receptors (MCRs) affect processes involved in inflammation, pigmentation, steroidogenesis, and immunomodulation. Although RCI has been approved to treat inflammatory and autoimmune diseases for more than 60 years, recent progress in understanding both MCRs and the effects of RCI in modulating immune responses has led to increased interest in RCI as a therapeutic choice...
June 28, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28619061/rituximab-versus-cyclophosphamide-for-the-treatment-of-connective-tissue-disease-associated-interstitial-lung-disease-recital-study-protocol-for-a-randomised-controlled-trial
#17
Peter Saunders, Vicky Tsipouri, Gregory J Keir, Deborah Ashby, Marcus D Flather, Helen Parfrey, Daphne Babalis, Elisabetta A Renzoni, Christopher P Denton, Athol U Wells, Toby M Maher
BACKGROUND: Interstitial lung disease (ILD) frequently complicates systemic autoimmune disorders resulting in considerable morbidity and mortality. The connective tissue diseases (CTDs) most frequently resulting in ILD include: systemic sclerosis, idiopathic inflammatory myositis (including dermatomyositis, polymyositis and anti-synthetase syndrome) and mixed connective tissue disease. Despite the development, over the last two decades, of a range of biological therapies which have resulted in significant improvements in the treatment of the systemic manifestations of CTD, the management of CTD-associated ILD has changed little...
June 15, 2017: Trials
https://www.readbyqxmd.com/read/28604480/intense-muscle-activity-due-to-polymyositis-incidentally-detected-in-a-patient-evaluated-for-possible-malignancy-by-fdg-pet-ct-imaging
#18
Xia Bai, Ning Tie, Xuemei Wang, Jianmin Zhao
A 42-year-old woman suffered shortness of breath and whole-body pain, more prominent in both thighs. After the initial assessment, a paraneoplastic syndrome was considered clinically, and FDG PET/CT was performed to search culprit malignancy. The images did not reveal any focal lesion typical of solid hypermetabolic malignancy. Instead, diffuse increased muscle activity was noted in most musculatures, with some focally intense. The findings were suggestive of polymyositis, which was subsequently confirmed.
August 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28592713/pulmonary-limited-granulomatosis-with-polyangiitis-coexisting-with-mixed-connective-tissue-disease
#19
Masaru Ando, Akihiko Goto, Mari Yamasue, Yuko Usagawa, Hiroaki Oka, Takehiko Shigenaga, Jun-Ichi Kadota
Granulomatosis with polyangiitis (GPA) is a systemic disease characterized by necrotizing, granulomatous vasculitis of the upper and lower respiratory tracts and glomerulonephritis, and is classified as a classical or limited form. The classical form of GPA demonstrates the involvement of the upper respiratory tract, sinuses, lungs and kidneys, whereas the limited form is characterized by the lack of the renal involvement with female predominance. On the other hand, mixed connective tissue disease (MCTD) shows the clinical and laboratorial features of systemic lupus erythematosus, systemic sclerosis and polymyositis, along with high titers of anti-ribonucleoprotein antibodies and is characterized by good response to corticosteroid therapy and favorable prognosis...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28587920/-what-would-you-do-with-an-adult-patient-who-consults-due-to-head-muscle-weakness-and-has-dropped-head
#20
L Paino, N Blasco
The dropped head syndrome, whether due to muscle weakness, rigidity, or ankylosis, is not uncommon in the elderly. It is characterised by a "chin-on-chest" reducible kyphosis, which is secondary to head muscle debility. It may be associated with a neuromuscular group of diseases such as polymyositis, chronic Inflammatory demyelinating polyneuropathy, myasthenia gravis, amyotrophic lateral sclerosis, and inclusion-body myositis. Some cases associated with hypothyroidism and hyperparathyroidism have also been described...
June 3, 2017: Semergen
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