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Anti neutrophil cytoplasmic antibody

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https://www.readbyqxmd.com/read/29158303/teaching-neuroimages-myeloperoxidase-anti-neutrophil-cytoplasmic-antibody-positive-hypertrophic-pachymeningitis
#1
Collin J Culbertson, Seth C Lummus, Carl A Gold
No abstract text is available yet for this article.
November 21, 2017: Neurology
https://www.readbyqxmd.com/read/29139157/seronegative-granulomatosis-with-polyangiitis-presenting-with-multiple-cranial-nerve-palsies
#2
Eunhye Lee, Jynkyun Park, Seung Hong Choi, Sung-Hye Park
Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis (WG), is a rare systemic disease characterized by necrotizing granulomas and vasculitis that usually presents in the respiratory tract and renal system. Here, we report a case of anti-neutrophil cytoplasmic antibody (ANCA)-negative GPA with diagnostic difficulties. Neurologic involvement in GPA is not uncommon, with up to 50% of patients manifesting with neurologic defects; however, it is usually a late event. This patient was a 50-year-old man whose first manifestation was multiple neurologic defects without respiratory or renal symptoms...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29124398/patient-perceptions-of-glucocorticoids-in-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis
#3
Joanna C Robson, Jill Dawson, Peter F Cronholm, Susan Ashdown, Ebony Easley, Katherine S Kellom, Don Gebhart, Georgia Lanier, Nataliya Milman, Jacqueline Peck, Raashid A Luqmani, Judy A Shea, Gunnar Tomasson, Peter A Merkel
Granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA) are multisystem diseases of small blood vessels, collectively known as the anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV). This study explores the patient's perspective on the use of glucocorticoids, which are still a mainstay of treatment in AAV. Patients with AAV from the UK, USA, and Canada were interviewed, using purposive sampling to include a range of disease manifestations and demographics...
November 9, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29113861/identification-and-characterization-of-myeloperoxidase-in-orange-spotted-grouper-epinephelus-coioides
#4
Hai-Qing Wang, Ling Zhou, Man Yang, Xiao-Chun Luo, Yan-Wei Li, Xue-Ming Dan
Cryptocaryon irritans is an important protozoan ciliate, which has led to heavy economic losses in marine aquaculture. Previous studies have indicated that C. irritans infection could induce the migration of neutrophils to infection sites. Myeloperoxidase (MPO) mainly exists in the cytoplasmic granules of the neutrophil and performs its function by a unique enzymatic capacity to produce hypohalous acid and other toxic oxidants. To determine the involvement of MPO and neutrophils against C. irritans infection in the host, we amplified MPO cDNA (EcMPO) from orange-spotted grouper (Epinephelus coioides)...
November 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29106654/the-population-level-costs-of-immunosuppression-medications-for-the-treatment-of-glomerulonephritis-are-increasing-over-time-due-to-changing-patterns-of-practice
#5
Sean Barbour, Clifford Lo, Gabriela Espino-Hernandez, Sharareh Sajjadi, John Feehally, Scott Klarenbach, Jagbir Gill
Background: Immunosuppression (IS) is the main treatment for most types of glomerulonephritis (GN). Quantifying the cost of IS is necessary to ensure equitable access to therapies and optimal health outcomes, but the real-world cost of IS treatment for GN is largely unknown. We examined temporal changes in the population-level IS medication costs for GN over a 14-year period in a large Canadian province. Methods: We linked a provincial pathology database (containing all GN cases from 2000 to 2012) with renal and medication administrative databases to capture clinical characteristics and IS medications, with follow-up until 2013...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29100671/-nettling-the-host-breaking-of-tolerance-in-chronic-inflammation-and-chronic-infection
#6
REVIEW
Sladjana Skopelja-Gardner, Jonathan D Jones, William F C Rigby
How and why we break tolerance to self-proteins still remains a largely unanswered question. Neutrophils have been identified as a rich source of autoantigens in a wide array of autoimmune diseases that arise as a consequence of different environmental and genetic factors, e.g. rheumatoid arthritis (RA), lupus, vasculitis, cystic fibrosis (CF) etc. Specifically, neutrophil extracellular trap (NET) formation has been identified as a link between innate and adaptive immune responses in autoimmunity. Autoantigens including neutrophil granular proteins (targeted by anti-neutrophil cytoplasmic antibodies, ANCA) as well as post-translationally modified proteins, i...
October 31, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29099568/a-case-report-on-suspected-levamisole-induced-pseudovasculitis
#7
Tiffany Fan, Jeffrey Macaraeg, Toufik Mahfood Haddad, Holly Bacon, Duc Le, Mohsin Mirza, Carrie Valenta, Tammy Wichman
INTRODUCTION: Levamisole-induced pseudovasculitis should be considered in patients with inconsistent anti-neutrophil cytoplasmic antibodies (ANCA) pattern and history of cocaine use. CASE PRESENTATION: A 50-year-old man presented to the emergency department with symptoms of bilateral pulmonary emboli. His hospital course was complicated by multiple end organ failure, which improved dramatically with prednisone. Although he was diagnosed previously with granulomatosis with polyangiitis due to positive proteinase 3 (PR3), myeloperoxidase (MPO), perinuclear anti-neutrophil cytoplasmic antibodies (P-ANCA) and cytoplasmic anti-neutrophil cytoplasmic antibodies (C-ANCA) markers, his longstanding cocaine use and history of skin ulcers, thrombotic events, and febrile illnesses suggested a diagnosis of levamisole-induced pseudovasculitis instead...
February 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29056777/relapsing-granulomatosis-with-polyangiitis-with-severe-lung-and-upper-respiratory-tract-involvement-successfully-treated-with-rituximab
#8
Anna Masiak, Zbigniew Zdrojewski
Granulomatosis with polyangiitis (GPA) is a chronic, relapsing, primary systemic small vessel vasculitis associated with anti-neutrophil cytoplasmic antibodies. The disease is characterised by the involvement of various organs. The relapse rate rises from about 20% at 12 months to about 60% at 5 years. The combination of glucocorticoids and cyclophosphamide remains the standard therapy for patients with generalised GPA; nevertheless, some patients do not respond satisfactorily to this treatment. According to EULAR-EDTA recommendations for the management of ANCA-associated vasculitis, RTX should be considered for remission-induction of new-onset as well as major relapse of organ-threatening or life-threatening GPA...
2017: Reumatologia
https://www.readbyqxmd.com/read/29056396/serology-in-autoimmune-hepatitis-a-clinical-practice-approach
#9
REVIEW
Benedetta Terziroli Beretta-Piccoli, Giorgina Mieli-Vergani, Diego Vergani
Serology is key to the diagnosis of autoimmune hepatitis (AIH). Clinicians need to be aware of which tests to request, how to interpret the laboratory reports, and be familiar with the laboratory methodology. If correctly tested, >95% of AIH patients show some serological reactivity. Indirect immunofluorescence on triple rodent tissue is recommended as first screening step, since it allows the detection of all liver-relevant autoantibodies, except for anti-soluble liver antigen (SLA) antibody, which needs to be detected by molecular based assays...
October 19, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29045980/-anti-neutrophil-cytoplasmic-antibodies-associated-vasculitis-with-lung-hemorrhage-in-the-patient-on-maintenance-haemodialysis-a-case-report
#10
J X Ding, M Wang
Anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) is usually a multisystem disorder, and pulmonary renal syndrome is a common presentation. Patients with AAV are less likely to experience relapse when they progress to end-stage renal disease (ESRD). We report a rare case of diffuse alveolar hemorrhage (DAH) in relapsing AAV after eight years of haemodialysis. A 58-year-old woman was admitted to our hospital with the chief complaints of dyspnea and hemoptysis accompanied by anemia, fever, fatigue, and weight loss...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29043147/a-case-report-of-paraproteinemia-associated-pauci-immune-glomerulonephritis-a-new-form-of-monoclonal-gammopathy-of-renal-significance
#11
Robert Rope, Neeraja Kambham, Neiha Arora
BACKGROUND: Renal disease associated with paraproteinemias is classically predicated upon pathologic paraprotein deposition in the kidney. However, growing evidence suggests that paraproteins may be able to systemically activate complement or neutrophils to drive renal damage. This may provide an alternative pathologic mechanism for renal injury in rare cases. CASE REPORT: We report a case of a patient with crescentic pauci-immune glomerulonephritis presenting with rapidly progressive renal failure, polyarthropathy, and a purpuric rash in association with a monoclonal immunoglobulin G κ-light-chain producing multiple myeloma...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29042750/current-perspective-on-rituximab-in-rheumatic-diseases
#12
REVIEW
Tommaso Schioppo, Francesca Ingegnoli
The steadily increasing knowledge regarding pathogenetic mechanisms in autoimmune rheumatic diseases has paved the way to different therapeutic approaches. In particular, the market entry of biologics has dramatically modified the natural history of rheumatic chronic inflammatory diseases with a meaningful impact on patients' quality of life. Among the wide spectrum of available biological treatments, rituximab (RTX), first used in the treatment of non-Hodgkin's lymphoma, was later approved for rheumatoid arthritis and anti-neutrophil cytoplasmic antibodies-associated vasculitis...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29029294/cardiovascular-events-in-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-a-meta-analysis-of-observational-studies
#13
Eline Houben, Erik L Penne, Alexandre E Voskuyl, Joost W van der Heijden, René H J Otten, Maarten Boers, Tiny Hoekstra
Objectives: Several chronic inflammatory diseases are associated with cardiovascular disease, but the risk in ANCA-associated vasculitis is poorly quantified. The aim of the present study was to review the evidence for an increased cardiovascular risk, including ischaemic heart disease, cerebrovascular accidents and peripheral arterial disease, in patients with ANCA-associated vasculitis. Methods: A comprehensive systematic review was conducted in accordance with guidelines of preferred reporting items for systematic reviews and meta-analyses...
September 18, 2017: Rheumatology
https://www.readbyqxmd.com/read/29021484/anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-complicated-by-periaortitis-and-cranial-hypertrophic-pachymeningitis-a-report-of-an-autopsy-case
#14
Hajime Kaga, Atsushi Komatsuda, Masaya Saitoh, Mizuho Nara, Ayumi Omokawa, Masaru Togashi, Shin Okuyama, Hideki Wakui, Naoto Takahashi
Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a systemic inflammatory disorder categorized as small-vessel vasculitis. We herein report an elderly Japanese man with AAV (granulomatous with polyangiitis affecting the eyes, nose, lungs, and kidneys) who also showed periaortitis at the diagnosis and developed cranial hypertrophic pachymeningitis (HP) during steroid maintenance therapy. His consciousness disturbance caused by HP improved after steroid pulse therapy, but he died of aspiration pneumonia...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29021478/rhabdomyolysis-in-a-patient-with-polyarteritis-nodosa
#15
Harunobu Iida, Hironari Hanaoka, Yusa Asari, Kana Ishimori, Tomofumi Kiyokawa, Yukiko Takakuwa, Yoshioki Yamasaki, Hidehiro Yamada, Takahiro Okazaki, Masatomo Doi, Shoichi Ozaki
Polyarteritis nodosa (PAN) is a medium vessel vasculitis affecting systemic organs. Muscle involvement of PAN usually lacks elevation of creatinine kinase (CK). We herein report a case of PAN with rhabdomyolysis. A 71-year-old man was hospitalized because of muscle weakness of the lower limbs that persisted for 1 month. On a physical examination, rapidly progressive lower proximal muscle weakness and bilateral drop foot were observed. His blood test showed an elevation in the C-reactive protein (CRP) (19.5 mg/dL) and CK (13,435 IU/L) levels and negativity for anti-neutrophilic cytoplasmic antibody (ANCA)...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29016646/methotrexate-versus-cyclophosphamide-for-remission-maintenance-in-anca-associated-vasculitis-a-randomised-trial
#16
Federica Maritati, Federico Alberici, Elena Oliva, Maria L Urban, Alessandra Palmisano, Francesca Santarsia, Simeone Andrulli, Laura Pavone, Alberto Pesci, Chiara Grasselli, Rosaria Santi, Bruno Tumiati, Lucio Manenti, Carlo Buzio, Augusto Vaglio
OBJECTIVES: The treatment of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is based on remission-induction and remission-maintenance. Methotrexate is a widely used immunosuppressant but only a few studies explored its role for maintenance in AAV. This trial investigated the efficacy and safety of methotrexate as maintenance therapy for AAV. METHODS: In this single-centre, open-label, randomised trial we compared methotrexate and cyclophosphamide for maintenance in AAV...
2017: PloS One
https://www.readbyqxmd.com/read/28988671/c3-deposits-worsens-the-prognosis-in-type-iii-extracapillary-glomerulonephritis
#17
Marina Sánchez-Agesta Martínez, Cristina Rabasco Ruiz, Rafael Sánchez Sánchez, Rosa Ortega Salas, María López Andreu, Pedro Aljama García, Mario Espinosa Hernández
INTRODUCTION: Type iii extracapillary glomerulonephritis (PEGN) is a common cause of rapidly progressive glomerulonephritis and it is usually associated with circulating anti-neutrophil cytoplasmic antibodies (ANCAs). Recent evidence points to complement activation as an important factor in the pathogenesis of PEGN. The aim of the present study was to assess the value of C3 deposits in the prognosis of PEGN. METHODS: All patients diagnosed of PEGN from 1995 to 2015 (n=72) were included in this study...
October 5, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28983650/-eosinophilic-granulomatosis-with-polyangiitis-churg-strauss-syndrome
#18
REVIEW
A Jerrentrup, T Müller, J Mariss, S Dylla
This article presents the case of a patient with dyspnea, a history of poorly controlled asthma, sinonasal polyposis, blood eosinophilia and transient pulmonary infiltrates. The autoantibodies antinuclear antibodies, cytoplasmic anti-neutrophil cytoplasmic antibodies (c-ANCA) and perinuclear anti-neutrophil cytoplasmic antibodies (p-ANCA) were negative. These symptoms are typical for eosinophilic granulomatosis with polyangiitis (EGPA, alternatively known as Churg-Strauss syndrome). The delay between onset and diagnosis in this case was several years...
October 5, 2017: Der Internist
https://www.readbyqxmd.com/read/28975092/self-limited-membranous-nephropathy-after-intravitreal-bevacizumab-therapy-for-age-related-macular-degeneration
#19
Gebran Khneizer, Ahmad Al-Taee, Bahar Bastani
BACKGROUND: Monoclonal antibodies targeting vascular endothelial growth factor (VEGF), such as bevacizumab, are administered intravitreally for the treatment of wet or exudative age-related macular degeneration (ARMD). Systemic use of bevacizumab has been linked to a wide range of renal adverse effects including proteinuria and hypertension. CASE PRESENTATION: We present the case of a 77-year-old Caucasian male with a past medical history of hypertension, vitamin D deficiency and paroxysmal atrial fibrillation who presented to primary care clinic with a 2-week history of bilateral lower extremity edema, 2 months after completing four monthly intravitreal injections of bevacizumab for ARMD...
July 2017: Journal of Nephropathology
https://www.readbyqxmd.com/read/28973844/rituximab-for-the-treatment-of-adult-onset-iga-vasculitis-henoch-sch%C3%A3-nlein-purpura
#20
Federica Maritati, Roberta Fenoglio, Evangeline Pillebout, Giacomo Emmi, Maria L Urban, Rossana Rocco, Maria Nicastro, Monia Incerti, Matteo Goldoni, Giorgio Trivioli, Elena Silvestri, Aladdin J Mohammad, David Jayne, Per Eriksson, Mårten Segelmark, Pavel Novikov, Helen Harris, Dario Roccatello, Augusto Vaglio
OBJECTIVE: Adult-onset IgA vasculitis (IgAV, formerly Henoch-Schönlein purpura) is a rare systemic vasculitis characterised by IgA1-dominant deposits. The treatment of adult-onset IgAV is controversial and is based on the combination of glucocorticoids and immunosuppressive agents, but many patients have refractory or relapsing disease despite treatment. Rituximab is a B cell-depleting antibody of proven efficacy in anti-neutrophil cytoplasmic antibody-associated vasculitis. We tested the efficacy and safety of rituximab in a multicentre cohort of patients with adult-onset IgAV...
October 3, 2017: Arthritis & Rheumatology
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