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ANCA glomerulonephritis

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https://www.readbyqxmd.com/read/28883245/the-sequential-development-of-antiglomerular-basement-membrane-nephritis-and-myeloperoxidase-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#1
Naro Ohashi, Akio Namikawa, Masafumi Ono, Takamasa Iwakura, Shinsuke Isobe, Takayuki Tsuji, Akihiko Kato, Hideo Yasuda
A 55-year-old woman presented with deafness, increased levels of myeloperoxidase (MPO)-antineutrophil cytoplasmic antibody (ANCA), and renal insufficiency with proteinuria and hematuria. Renal biopsy revealed crescentic glomerulonephritis with the linear deposition of immunoglobulin G along the glomerular basement membrane (GBM) and peritubular capillaritis. The anti-GBM antibody levels on admission and 10 days after admission were 11.7 U/mL and 127 U/mL, respectively. These results indicated the sequential development of anti-GBM nephritis and MPO-ANCA-associated vasculitis...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28881339/interstitial-immunostaining-and-renal-outcomes-in-antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#2
Duvuru Geetha, Sanjeev Sethi, An S De Vriese, Ulrich Specks, Cees G M Kallenberg, Noha Lim, Robert Spiera, E William St Clair, Peter A Merkel, Philip Seo, Paul A Monach, Nicola Lepori, Barri J Fessler, Carol A Langford, Gary S Hoffman, Rishi Sharma, John H Stone, Fernando C Fervenza
BACKGROUND: Immunopathologic features predict renal function at baseline and follow-up in antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN). The interstitial infiltrate consists predominantly of T lymphocytes, but their pathophysiologic significance is unclear, especially in light of the success of B-cell-directed therapy. METHODS: Renal biopsies from 33 patients treated with cyclophosphamide (CYC; n = 17) or rituximab (RTX; n = 16) in the RTX in ANCA-associated vasculitis (RAVE) trial were classified according to the new ANCA GN classification...
September 8, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28880680/the-effect-and-possible-clinical-efficacy-of-in-vivo-inhibition-of-neutrophil-extracellular-traps-by-blockade-of-pi3k-gamma-on-the-pathogenesis-of-microscopic-polyangiitis
#3
Hirotaka Kimura, Yasushi Matsuyama, Sachiko Araki, Atsushi Koizumi, Yumi Kariya, Shunsuke Takasuga, Satoshi Eguchi, Hiroki Nakanishi, Junko Sasaki, Takehiko Sasaki
OBJECTIVE: Neutrophil extracellular traps (NETs) are peculiar structures composed of the externalized chromatin with intracellular proteins and formed by activated neutrophils in a reactive oxygen species (ROS)-dependent manner. Aberrant NETs are considered to be autoantigens for anti-neutrophil cytoplasmic antibodies (ANCAs) underling the development of microscopic polyangiitis (MPA). However, little is known regarding the therapeutic efficacy of in vivo inhibition of NET formation (NETosis) on MPA pathogenesis...
September 7, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28842398/anca-glomerulonephritis-and-vasculitis
#4
J Charles Jennette, Patrick H Nachman
ANCA vasculitis has an associated autoimmune response that produces ANCAs that induce distinct pathologic lesions. Pauci-immune necrotizing and crescentic GN is a frequent component of ANCA vasculitis. ANCA vasculitis is associated with ANCA specific for myeloperoxidase (MPO-ANCA) or proteinase 3 (PR3-ANCA). A diagnosis of ANCA vasculitis should always specify the serotype as MPO-ANCA positive, PR3-ANCA positive, or ANCA-negative. To fully characterize a patient, the serotype also should be accompanied by the clinicopathologic variant if this can be determined: microscopic polyangiitis, granulomatosis with polyangiitis (Wegener), eosinophilic granulomatosis with polyangiitis (Churg-Strauss), or renal-limited vasculitis...
August 25, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28768972/extranodal-nk-t-cell-lymphoma-nasal-type-accompanied-by-pr3-anca-associated-glomerulonephritis
#5
Yuta Tamoto, Ryo Ishida, Kazuya Shiogama, Hiroshi Kado, Michitsugu Kamezaki, Yoshiaki Chinen, Yosuke Matsumoto, Tetsuro Kusaba, Eiichi Konishi, Yutaka Tsutsumi, Keiichi Tamagaki
A 62-year-old man exhibiting nasal obstruction and glomerulonephritis with proteinase 3-antineutrophil cytoplasmic antibodies (PR3-ANCAs) was diagnosed with extranodal NK/T-cell lymphoma, nasal type (ENKL) with infiltration of neutrophils with apoptosis. Chemoradiotherapy reduced the tumor, improved the renal function, and decreased the PR3-ANCA levels. ANCA-positivity is observed in immunoinsufficient diseases, in which neutrophils lead to apoptosis and translocate intracellular granules, such as PR3, to the cell surface, triggering the production of ANCAs...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28766066/outcome-of-kidney-transplantation-in-pediatric-patients-with-anca-associated-glomerulonephritis-a-single-center-experience
#6
Damien Noone, Rae S M Yeung, Diane Hebert
OBJECTIVES: Data on kidney transplant outcomes for pediatric patients with end-stage renal disease (ESRD) secondary to anti-neutrophil cytoplasmic antibody glomerulonephritis (ANCA GN), particularly granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), is limited. We describe our experience of kidney transplantation in pediatric ANCA GN patients. METHODS: We performed a retrospective review of patients with ANCA GN who developed ESRD and were transplanted at a single center between the years 2000 and 2014...
August 1, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28745694/-difficulties-in-the-differential-diagnosis-of-kidney-injury-in-a-patient-with-infective-endocarditis-associated-with-antineutrophil-cytoplasmic-antibodies
#7
T V Androsova, L V Kozlovskaya, M V Taranova, L A Strizhakov, S V Gulyaev, A V Russkikh
Infective endocarditis (IE) may be accompanied by the production of a broad spectrum of autoantibodies, including antineutrophil cytoplasmic antibodies (ANCA). ANCA detection creates difficulties in the differential diagnosis of IE, especially in relation to kidney injury, the determination of the mechanism of which is important for choosing a treatment policy and estimating a prognosis. The paper describes a clinical case of a 57-year-old man who was found to have higher proteinase-3 (PR-3) ANCA titers along with the symptoms of anemia, purpura, and kidney injury during his hospitalization; echocardiography revealed vegetation on the aortic valve...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28745689/-kidney-injury-molecules-kim-1-mcp-1-and-type-iv-collagen-in-the-assessment-of-activity-of-antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#8
N M Bulanov, A G Serova, E I Kuznetsova, M L Bulanova, P I Novikov, L V Kozlovskaya, S V Moiseev
AIM: To assess the significance of determining the serum and urinary concentrations of monocyte chemotactic protein-1 (MCP-1), kidney injury molecule-1 (KIM-1), and type IV collagen in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) to estimate the activity of renal involvement in AAV. SUBJECTS AND METHODS: 78 patients (32 men and 46 women) (median age 55 (45; 61) years) with AAV were examined. The patients were divided into 3 groups according to the AAV activity estimated using the Birmingham vasculitis activity Score (BVAS): 1) 25 patients with active ANCA-associated glomerulonephritis (GN); 2) 26 patients with active AAV without renal involvement; 3) 27 patients in sustained AAV remission...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28667835/monocytes-promote-crescent-formation-in-anti-myeloperoxidase-antibody-induced-glomerulonephritis
#9
Anthony Rousselle, Ralph Kettritz, Adrian Schreiber
Neutrophils and monocytes express anti-neutrophil cytoplasmic antibody (ANCA) antigens, and activation of these cells by ANCA is central to ANCA-associated vasculitis and necrotizing crescentic glomerulonephritis (NCGN). The importance of neutrophils is established; however, any role of monocytes is less clear. We tested the hypothesis that depletion of CCR2(+) inflammatory monocytes and their derivatives would abrogate anti-myeloperoxidase (MPO) antibody-induced NCGN in a mouse model. We used passive anti-MPO antibody transfer for NCGN induction in wild-type mice or mice expressing the CCR2 promoter-controlled diphtheria toxin receptor...
September 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28646482/clinical-serological-and-histological-determinants-of-patient-and-renal-outcome-in-anca-associated-vasculitis-with-renal-involvement-an-analysis-from-a-referral-centre
#10
Matija Crnogorac, Ivica Horvatic, Luka Toric, Danica Galesic Ljubanovic, Miroslav Tisljar, Krešimir Galesic
PURPOSE: To evaluate significance of clinical and histopathological prognostic factors for renal and patient outcome in AAV patient cohort. METHODS: Retrospective study included consecutive patients diagnosed with pauci-immune crescentic glomerulonephritis from January 2003 to December 2013. Primary outcome was combined endpoint patient death or progression to end-stage renal disease (ESRD). Secondary outcomes were patient survival and progression to ESRD (renal survival) singularly and disease relapse...
August 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28626447/autoimmune-thyroiditis-and-glomerulopathies
#11
REVIEW
Domenico Santoro, Carmela Vadalà, Rossella Siligato, Michele Buemi, Salvatore Benvenga
Autoimmune thyroiditis (AIT) is generally associated with hypothyroidism. It affects ~2% of the female population and 0.2% of the male population. The evidence of thyroid function- and thyroid autoantibody-unrelated microproteinuria in almost half of patients with AIT and sometimes heavy proteinuria as in the nephrotic syndrome point to a link of AIT with renal disease. The most common renal diseases observed in AIT are membranous nephropathy, membranoproliferative glomerulonephritis, minimal change disease, IgA nephropathy, focal segmental glomerulosclerosis, antineutrophil cytoplasmic autoantibody (ANCA) vasculitis, and amyloidosis...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28612242/histopathologic-classification-of-anti-neutrophil-cytoplasmic-antibody-associated-glomerulonephritis-achievements-limitations-and-perspectives
#12
Andrea Hinojosa-Azaola, Ariadna Jiménez-González
Clinical and histological factors have been identified as predictors of early and late renal outcome in ANCA-associated vasculitides (AAV). The presence and severity of kidney involvement at diagnosis are associated with poor prognosis in both patient and renal survival. Histologic findings remain the gold standard for diagnosing patients with AAV. In order to quantify the extent of the morphological parameters in the renal biopsies and to identify the histopathological lesions that predict renal outcome, several scoring systems have been proposed to systematically assess kidney biopsies in AAV...
June 14, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28595914/ischemia-induced-glomerular-parietal-epithelial-cells-hyperplasia-commonly-misdiagnosed-cellular-crescent-in-renal-biopsy
#13
Yeting Zeng, Xinrui Wang, Feilai Xie, Zhiyong Zheng
Ischemic pseudo-cellular crescent (IPCC) that is induced by ischemia and composed of hyperplastic glomerular parietal epithelial cells resembles cellular crescent. In this study, we aimed to assess the clinical and pathological features of IPCC in renal biopsy to avoid over-diagnosis and to determine the diagnostic basis. 4 IPCC cases diagnosed over a 4-year period (2012-2015) were evaluated for the study. Meanwhile, 5 cases of ANCA-associated glomerulonephritis and 5 cases of lupus nephritis (LN) were selected as control...
August 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28580649/myeloperoxidase-antineutrophil-cytoplasmic-antibody-causes-different-renal-diseases-by-immune-complex-formation-and-pauci-immune-mechanism-a-case-report
#14
Shun Manabe, Michiyasu Hatano, Marie Nakano, Teruhiro Fujii, Kosaku Nitta, Michio Nagata
Antineutrophil cytoplasmic antibody (ANCA) has been known to cause pauci-immune crescentic glomerulonephritis. In addition, several reports described membranous glomerulonephritis (MN) concurrent with ANCA-associated glomerulonephritis. Because the two glomerular diseases simultaneously appear in an ANCA-positive patient, the mechanisms whereby ANCA causes the two different glomerular diseases remain ambiguous. Herein, we report a case of 19-year-old man who presented with hematuria, pre-nephrotic proteinuria, and high titer of myeloperoxidase (MPO)-ANCA...
June 4, 2017: Pathology International
https://www.readbyqxmd.com/read/28559644/severe-microscopic-polyangiitis-with-unilateral-vocal-cord-paralysis-as-initial-manifestation
#15
Luis Felipe Flores-Suárez, Marco Antonio Alba, Gabriel Tona
CASE DESCRIPTION: A 16 year-old female who presented with initial ear, nose and throat manifestations who later progressed to severe renal disease, requiring hemodialysis after 11 months of unique laryngeal involvement. CLINICAL FINDINGS: Unilateral vocal cord paralysis without other symptoms or signs, but with positive perinuclear anti-neutrophil cytoplasmic antibodies (ANCA) and anti-myeloperoxidase autoantibodies, followed an unfavorable course months later with rapidly progressive glomerulonephritis...
March 30, 2017: Colombia Médica: CM
https://www.readbyqxmd.com/read/28550388/antibodies-against-linear-epitopes-on-goodpasture-autoantigen-in-patients-with-anti-neutrophil-cytoplasmic-antibody-associated-vasculitis
#16
Xiao-Yu Jia, Jun-Tao Yu, Shui-Yi Hu, Jian-Nan Li, Miao Wang, Chen Wang, Min Chen, Zhao Cui, Ming-Hui Zhao
In a substantial number of patients with crescentic glomerulonephritis, both anti-glomerular basement membrane (GBM) antibodies and anti-neutrophil cytoplasmic antibodies (ANCA) are detected simultaneously. ANCA is presumed to be the initial event but the mechanism is unknown. In the present study, we investigated the antibodies against linear epitopes on Goodpasture autoantigen in sera from patients with ANCA-associated vasculitis, aiming to reveal the mechanisms of the coexistence of the two kinds of autoantibodies...
May 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28540906/an-overlap-of-granulomatosis-with-polyangiitis-and-eosinophilic-granulomatosis-with-polyangiitis
#17
Sujit Surendran, Chandramohan Gundappa, Arun Gandhi, Anila Abraham Kurien, Edwin Fernando
We present a case report of overlap of granulomatosis with polyangiitis (GPA; formerly known as Wegener's granulomatosis) and eosinophilic granulomatosis with polyangiitis (EGPA; formerly known as Churg-Strauss syndrome). We report a 45-year-old female who presented with rapidly progressive renal failure associated with fever, polyarthralgia, and respiratory symptoms with cytoplasmic antineutrophilic cytoplasmic antibody (ANCA) and proteinase (PR-3) antigen positivity. Computerized tomography scan of the chest showed diffuse alveolar hemorrhage with renal biopsy revealing pauci-immune necrotizing crescentic glomerulonephritis with intense eosinophilic infiltration suggestive of eosinophilic GPA (EGPA)...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540889/patterns-of-glomerulonephritis-with-crescents-experience-at-a-tertiary-medical-center-in-saudi-arabia
#18
Turki Al-Hussain, Shuaa Asiri, Sadiq Amer, Hadeel Al Mana, Mohammed Akhtar
A series of 78 cases of glomerulonephritis (GN), in which renal biopsy revealed changes of GN associated with crescent formation, were reviewed. Renal pathology findings were correlated with clinical features including patient's age, renal function, and serologic findings. In most of the cases (71.8%), the crescents were due to immune complex-mediated GN. This was followed by pauci-immune GN (20.5%) and anti-glomerular basement membrane antibody (GBM) GN (7.7%). The percentage of glomeruli with crescents was the highest in cases of anti-GBM disease (mean of 93...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28514287/concurrent-igg4-related-tubulointerstitial-nephritis-and-igg4-myeloperoxidase-anti-neutrophil-cytoplasmic-antibody-positive-crescentic-glomerulonephritis-a-case-report
#19
Tao Su, Li Yang, Zhao Cui, Su-Xia Wang, Ming-Hui Zhao
RATIONALE: IgG4-related disease (IgG4-RD) is a newly recognized systemic disease. The typical pathological finding in the kidney is abundant IgG4-positive plasma cell infiltration with characteristic storiform fibrosis in the interstitium. Antibodies of the IgG4 subclass have been linked to certain autoimmune diseases including antiproteinase 3 (PR3) anti-neutrophil cytoplasmic antibody (ANCA) of the IgG4 subclass. Here, we report a rare case of kidney injury with concurrent typical IgG4-related tubulointerstitial nephritis and IgG4 subclass of myeloperoxidase (MPO) ANCA-positive necrotizing crescentic glomerulonephritis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28509135/renal-limited-vasculitis-with-elevated-levels-of-multiple-antibodies
#20
Noriaki Sato, Hideki Yokoi, Hirotaka Imamaki, Eiichiro Uchino, Kaoru Sakai, Takeshi Matsubara, Tatsuo Tsukamoto, Sachiko Minamiguchi, Motoko Yanagita
Renal-limited vasculitis (RLV) is a type of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis that presents with crescentic glomerulonephritis with no other organ involvement. Although several studies reported patients with crescentic glomerulonephritis who were dual positive for proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA or ANCA and anti-glomerular basement membrane (GBM) antibody, patients positive for all three antibodies, i.e., triple-positive patients, were rarely reported. We herein report the case of a male with pauci-immune type crescentic glomerulonephritis positive for MPO-ANCA, PR3-ANCA, and anti-GBM antibody...
May 2017: CEN Case Reports
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