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ANCA Vasculitis

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21 papers 25 to 100 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
https://www.readbyqxmd.com/read/30276365/antineutrophil-cytoplasmic-antibodies-associated-glomerulonephritis-from-bench-to-bedside
#1
REVIEW
Yong-Xi Chen, Xiao-Nong Chen
Antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) is a group of autoimmune disorders that predominantly affects small vessels. The onset of the disease is closely associated with ANCA. Renal involvement, also known as ANCA-associated glomerulonephritis (AGN), is one of the most common manifestations of AAV. In this mini-review, we described the clinical and pathological features of AGN. We then focused on recent studies on the mechanism of acute kidney lesions, including fibrinoid necrosis and crescent formation...
September 2018: Chronic diseases and translational medicine
https://www.readbyqxmd.com/read/30207165/impact-of-mpo-anca-mediated-oxidative-imbalance-on-renal-vasculitis
#2
Marc Hilhorst, Alexandre Tj Maria, Niloufar Kavian, Frederic Batteux, Didier Borderie, Alain Le Quellec, Pieter van Paassen, Philippe Guilpain
Glomerulonephritis is a severe complication of microscopic polyangiitis (MPA), a small-vessel vasculitis associated with anti-myeloperoxidase antibodies (MPO-ANCA). We previously showed the pathogenic effects of MPO-ANCA that activate MPO to trigger an oxidative burst mainly through HOCl production, contributing to endothelial injury and lung fibrosis. The aim of this study was to investigate the relationship between MPO-induced oxidative stress, anti-oxidant defenses and renal histological lesions in MPA patients...
September 12, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/30102330/incidence-prevalence-mortality-and-chronic-renal-damage-of-anti-neutrophil-cytoplasmic-antibody-associated-glomerulonephritis-in-a-20-year-population-based-cohort
#3
Alvise Berti, Emilie Cornec-Le Gall, Divi Cornec, Marta Casal Moura, Eric L Matteson, Cynthia S Crowson, Aishwarya Ravindran, Sanjeev Sethi, Fernando C Fervenza, Ulrich Specks
Background: True population-based clinical and outcomes data are lacking for anti-neutrophil cytoplasmic autoantibody (ANCA)-associated glomerulonephritis (AAGN). Therefore we aimed to estimate the incidence, prevalence and mortality of AAGN, as well as the relationship between the grade of chronic renal damage at presentation and renal and non-renal outcomes. Methods: Patients with AAGN were identified among a population-based incident cohort of 57 Olmsted County residents diagnosed with ANCA-associated vasculitis (AAV) in 1996-2015...
August 8, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/30094010/seasonal-variations-in-the-onset-of-positive-and-negative-renal-anca-associated-vasculitis-in-spain
#4
Juliana Draibe, Xavier Rodó, Xavier Fulladosa, Laura Martínez-Valenzuela, Montserrat Diaz-Encarnación, Lara Santos, Helena Marco, Luis Quintana, Eva Rodriguez, Xoana Barros, Rosa Garcia, Anna Balius, Josep M Cruzado, Joan Torras
Background: The closure of long-standing gaps in our knowledge of aetiological factors behind anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a major challenge. Descriptive and analytical epidemiological studies can improve our understanding of environmental influences. Reported seasonal variations in AAV, mainly related to Wegener's disease, have shown an increasing number of cases in the winter months, which could be related to an extrinsic factor underlying infection...
August 2018: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29999161/-renal-involvement-in-antineutrophil-cytoplasmic-antibodies-anca-associated-vasculitides-recommendations-of-the-chilean-societies-of-nephrology-and-rheumatology
#5
Verónica Aguirre, Miriam Alvo, Leopoldo Ardiles, Alberto Fierro, Annelise Goecke, Mirentxu Iruretagoyena, Roberto Jalil, Loreto Massardo, Gonzalo P Méndez, Sergio Palma, Emilio Roessler, Francisco Silva, Andrés Wurgaft
Renal involvement is a frequent complication in antineutrophil cytoplasmic antibodies (ANCA)associated vasculitides, adding morbidity and mortality, such as chronic kidney disease and the need for renal replacement therapy. With the aim of reaching a consensus on relevant issues regarding the diagnosis, treatment and follow-up of patients with these diseases, the Chilean Societies of Nephrology and Rheumatology formed a working group that, based on a critical review of the available literature and their experience, raised and answered consensually a set of questions relevant to the subject...
February 2018: Revista Médica de Chile
https://www.readbyqxmd.com/read/29973979/prognostic-factors-in-anti-neutrophil-cytoplasmic-antibody-associated-glomerulonephritis-with-severe-glomerular-sclerosis-a-national-registry-based-cohort-study
#6
Rune Bjørneklett, Vilde Solbakken, Leif Bostad, Anne-Siri Fismen
Background: Classification of patients with anti-neutrophil cytoplasmic antibody-associated glomerulonephritis (ANCA-GN) into histological classes is useful for predicting a patient's risk of progression to end-stage renal disease (ESRD). However, even in the worst prognostic group, the 5-year end-stage renal disease-free survival rate is as high as 50%. Objectives: To investigate those prognostic factors indicative of progression to ESRD in patients with ANCA-GN and sclerosing histology...
2018: Pathology Research International
https://www.readbyqxmd.com/read/29902982/risk-factors-for-infectious-complications-of-anca-associated-vasculitis-a-cohort-study
#7
Liu Yang, Honglang Xie, Zhengzhao Liu, Yinghua Chen, Jinquan Wang, Haitao Zhang, Yongchun Ge, Weixin Hu
BACKGROUND: Severe infections are common complications of immunosuppressive treatment for antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) with renal involvement. We investigated the clinical characteristics and risk factors of severe infection in Chinese patients with AAV after immunosuppressive therapy. METHODS: A total of 248 patients with a new diagnosis of ANCA-associated vasculitis were included in this study. The incidence, time, site, and risk factors of severe infection by the induction therapies were analysed...
June 14, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29730854/renal-involvement-in-antiphospholipid-syndrome
#8
REVIEW
Francisco Vileimar Andrade de Azevedo, Diego Germano Maia, Jozelio Freire de Carvalho, Carlos Ewerton Maia Rodrigues
This is a review of scientific publications on renal involvement in antiphospholipid syndrome (APS), with focus on clinical and histopathological findings and treatment. A search for English-language articles on renal involvement in APS covering the period 1980-2017 was conducted in Medline/PubMed and Scopus databases using the MeSH terms "antiphospholipid syndrome", "antiphospholipid antibodies", "glomerulonephritis" and "thrombotic microangiopathy" (TMA). APS nephropathy is primarily the result of thromboses in renal arteries or veins, intraparenchymatous arteries and glomerular capillaries...
October 2018: Rheumatology International
https://www.readbyqxmd.com/read/29736379/antineutrophil-cytoplasmic-antibody-associated-vasculitides-with-renal-involvement-open-challenges-in-the-remission-induction-therapy
#9
REVIEW
Maurizio Salvadori, Aris Tsalouchos
Renal involvement with rapidly progressive glomerulonephritis is a common manifestation of antineutrophil cytoplasmic antibody (ANCA) associated vasculitides, which is characterized by end-stage renal disease and high mortality rates in untreated and/or late referral patients. The long-term renal survival has improved dramatically since the addition of cyclophosphamide (CYC) and recently of rituximab (RTX) in association with corticosteroids in the remission induction therapeutic regimens. However, renal prognosis remains unfavorable for many patients and the mortality rate is still significantly high...
May 6, 2018: World Journal of Nephrology
https://www.readbyqxmd.com/read/29478046/management-of-elderly-patients-with-rapidly-progressive-glomerulonephritis
#10
Zdenka Hruskova, Vladimir Tesar
BACKGROUND: Rapidly progressive glomerulonephritis (RPGN) is characterized by a rapid deterioration of renal function and by extracapillary proliferation in >50% of glomeruli. The most common type of RPGN is "pauci-immune" glomerulonephritis caused by anti-neutrophil cytoplasmic antibodies-associated vasculitis (AAV). SUMMARY: The incidence of AAV increases with age and pauci-immune glomerulonephritis is the most common diagnosis found in renal biopsies in the elderly population...
2018: Blood Purification
https://www.readbyqxmd.com/read/29478072/treatment-of-rapidly-progressive-glomerulonephritis-in-the-elderly
#11
Gerald B Appel, Wai L Lau
As the population worldwide ages, the epidemic of kidney disease will also increase. Anti-neutrophil cytoplasmic antibodies (ANCA) positive rapidly progressive positive glomerulonephritis (RPGN) is the most common etiology for biopsied patients among the very elderly. Its pathological features and clinical course are well described, though there is still debate about the mechanism of injury involved in individual patients. From very ancient times, the cornerstone of treatment historically has been high-dose cyclophosphamide and a lengthy course of high-dose corticosteroids...
2018: Blood Purification
https://www.readbyqxmd.com/read/29462348/long-term-follow-up-of-a-combined-rituximab-and-cyclophosphamide-regimen-in-renal-anti-neutrophil-cytoplasm-antibody-associated-vasculitis
#12
Stephen P McAdoo, Nicholas Medjeral-Thomas, Seerapani Gopaluni, Anisha Tanna, Nicholas Mansfield, Jack Galliford, Megan Griffith, Jeremy Levy, Thomas D Cairns, David Jayne, Alan D Salama, Charles D Pusey
Background: Current guidelines advise that rituximab or cyclophosphamide should be used for the treatment of organ-threatening disease in anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV), although few studies have examined the efficacy and safety of these agents in combination. Methods: We conducted a single-centre cohort study of 66 patients treated with a combination of oral corticosteroids, rituximab and low-dose pulsed intravenous cyclophosphamide followed by a maintenance regimen of azathioprine and tapered steroid for the treatment of biopsy-proven renal involvement in AAV...
February 14, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29027625/serum-c3-complement-levels-in-anca-associated-vasculitis-at-diagnosis-is-a-predictor-of-patient-and-renal-outcome
#13
Matija Crnogorac, Ivica Horvatic, Patricia Kacinari, Danica Galesic Ljubanovic, Kresimir Galesic
AIM: To determinate the prognostic significance of low serum C3 at the time of diagnosis of ANCA-associated vasculitis (AAV). METHODS: Our cohort included 75 consecutive patients with AAV diagnosed from January 2005 to December 2015. C3 levels were measured at the time of diagnosis. Patients were divided into two groups, those with low serum C3 levels (< 0.9 g/l) and those with normal serum C3 levels (0.9-1.8 g/l). We analysed association between serum C3 levels and both combined and singularly patient and renal survival (ESRD)...
April 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/28560688/anca-associated-vasculitis-with-renal-involvement
#14
REVIEW
Valentina Binda, Gabriella Moroni, Piergiorgio Messa
Systemic vasculitis is a rare but severe group of diseases characterized by inflammation and necrosis of blood vessels. The size of the vessel affected varies among the different forms of vasculitis and there are three main subgroups: large, medium and small vessel vasculitis. Among small vessel vasculitis, the antineutrophil cytoplasmic antibody (ANCA)-associated forms are of particular importance. This subgroup includes: microscopic polyangiitis, granulomatosis with polyangiitis (Wegener's), eosinophilic granulomatosis with polyangiitis (Churg-Strauss) and the form limited to the kidney...
April 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/28391344/is-there-a-role-for-tnf%C3%AE-blockade-in-anca-associated-vasculitis-and-glomerulonephritis
#15
REVIEW
Stephen P McAdoo, Charles D Pusey
Tumour necrosis factor alpha (TNFα) is a cytokine that is pivotal in the inflammatory response. Blockade of TNFα has been shown to be effective in a number of human autoimmune diseases, including rheumatoid arthritis, raising the question of whether this approach may be effective in inflammatory kidney disease, such as ANCA-associated vasculitis (AAV). In AAV, there is considerable evidence for the role of TNFα in the pathophysiology of disease, including increased expression of TNFα mRNA in leucocytes and in renal tissue...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28087591/clinical-trials-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis-what-we-have-learnt-so-far-and-what-we-still-have-to-learn
#16
REVIEW
Divi Cornec, Emilie Cornec-Le Gall, Ulrich Specks
The prognosis of the antineutrophil cytoplasmic antibody associated vasculitides (AAV), microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA) and eosinophilic GPA (EGPA), has been fundamentally improved over the last five decades by the use of glucocorticoids and immunosuppressants, turning them from consistently fatal diseases into chronic conditions. The long-term course is now largely determined by the frequency of disease flares and by accruing damage caused by disease activity and treatment-related comorbidities...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27425391/vasculitis-management-of-aav-updated-recommendations
#17
Andrea Aguilar
No abstract text is available yet for this article.
July 18, 2016: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/25609739/maintenance-therapy-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis-who-needs-what-and-for-how-long
#18
REVIEW
Anoek A E de Joode, Jan Stephan F Sanders, Abraham Rutgers, Coen A Stegeman
Anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitides (AAV) are severe chronic auto-immune diseases in which the small vessels are inflamed. Nowadays, in the majority of patients disease can be brought into remission with cyclophosphamide and corticosteroids. However, depending upon disease characteristics patients with AAV have a risk of 29-60% to experience relapses of disease within 5 years despite maintenance therapy after induction of remission with less toxic agents, such as azathioprine, methotrexate or mycophenolate mofetil...
April 2015: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/25601266/the-long-term-outcomes-of-systemic-vasculitis
#19
REVIEW
Kerstin Westman, Oliver Flossmann, Gina Gregorini
Patients with generalized ANCA-associated small vessel vasculitis (AAV) have a very poor outcome if the ANCA-associated vasculitis is not diagnosed, evaluated and treated properly. The introduction of treatment with immunosuppressive therapy has improved patient survival dramatically but with considerable side effects. Besides, almost 50% of surviving patients experience a relapse of vasculitis. Since 1995, the European Vasculitis Society (EUVAS) has designed and conducted several clinical trials on patients with AAV independently of pharmaceutical companies...
April 2015: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/25540095/pathogenesis-of-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-challenges-and-solutions-2014
#20
REVIEW
Ulf Schönermarck, Elena Csernok, Wolfgang L Gross
Anti-neutrophil cytoplasmic autoantibodies (ANCA) with specificity for proteinase 3 (PR3-ANCA) or myeloperoxidase (MPO-ANCA) are a defining feature of ANCA-associated vasculitides (AAV). They play a pivotal role in disease pathophysiology and have strongly improved early diagnosis and treatment of these infrequent, but potentially fatal diseases. Neutrophils and their products are major players in initiating the autoimmune response and tissue destruction in vasculitic as well as granulomatous inflammation. This review highlights recent findings on old and novel players (ANCA, neutrophils, neutrophil extracellular traps, fibroblasts, immune cells and complement) and puts them into context with the current understanding of disease mechanisms in AAV...
April 2015: Nephrology, Dialysis, Transplantation
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