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crescentic nephropathy

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https://www.readbyqxmd.com/read/28756872/retinoic-acid-improves-nephrotoxic-serum-induced-glomerulonephritis-through-activation-of-podocyte-retinoic-acid-receptor-%C3%AE
#1
Yan Dai, Anqun Chen, Ruijie Liu, Leyi Gu, Shuchita Sharma, Weijing Cai, Fadi Salem, David J Salant, Jeffrey W Pippin, Stuart J Shankland, Marcus J Moeller, Norbert B Ghyselinck, Xiaquiang Ding, Peter Y Chuang, Kyung Lee, John Cijiang He
Proliferation of glomerular epithelial cells, including podocytes, is a key histologic feature of crescentic glomerulonephritis. We previously found that retinoic acid (RA) inhibits proliferation and induces differentiation of podocytes by activating RA receptor-α (RARα) in a murine model of HIV-associated nephropathy. Here, we examined whether RA would similarly protect podocytes against nephrotoxic serum-induced crescentic glomerulonephritis and whether this effect was mediated by podocyte RARα. RA treatment markedly improved renal function and reduced the number of crescentic lesions in nephritic wild-type mice, while this protection was largely lost in mice with podocyte-specific ablation of Rara (Pod-Rara knockout)...
July 27, 2017: Kidney International
https://www.readbyqxmd.com/read/28743127/a-rare-presentation-of-immunoglobulin-a-nephropathy-acute-kidney-injury
#2
Meric Oruc, Haydar Durak, Serkan Feyyaz Yalin, Nurhan Seyahi, Mehmet Rıza Altıparmak, Sinan Trabulus
BACKGROUND: Acute kidney injury (AKI) is known as an uncommon presentation in immunoglobulin A nephropathy (IgAN). The aim of our study was to analyze the clinical data and biopsy findings in IgAN patients presenting with AKI. METHODS: We performed a retrospective analysis of all subjects who had biopsy-proven IgAN and presented with AKI during June 2002 September 2015. The following data were obtained from medical records. RESULTS: A total of 15 patients of 123 patients (12...
July 26, 2017: Nephron
https://www.readbyqxmd.com/read/28732547/crescentic-glomerular-nephritis-associated-with-rheumatoid-arthritis-a-case-report
#3
K Balendran, L D S U Senarathne, R D Lanerolle
BACKGROUND: Rheumatoid arthritis is a systemic disorder where clinically significant renal involvement is relatively common. However, crescentic glomerular nephritis is a rarely described entity among the rheumatoid nephropathies. We report a case of a patient with rheumatoid arthritis presenting with antineutrophil cytoplasmic antibody-negative crescentic glomerular nephritis. CASE PRESENTATION: A 54-year-old Sri Lankan woman who had recently been diagnosed with rheumatoid arthritis was being treated with methotrexate 10 mg weekly and infrequent nonsteroidal anti-inflammatory drugs...
July 21, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28698271/mannose-binding-lectin-levels-could-predict-prognosis-in-iga-nephropathy
#4
Wei-Yi Guo, Li Zhu, Si-Jun Meng, Su-Fang Shi, Li-Jun Liu, Ji-Cheng Lv, Hong Zhang
IgA nephropathy (IgAN) is characterized by infections followed by episodic gross hematuria. Deficiency of mannose-binding lectin (MBL) is associated with recurrent infection in many diseases, but controversy exists regarding the role of MBL in IgAN. Here, we measured MBL2 variants and MBL levels in 749 patients with IgAN and 489 healthy controls. Overall, 5.2% (39 of 749) of patients with IgAN had MBL deficiency (MBL levels <100 ng/ml), among whom LYPB/LYPB and LXPA/LYPB were the predominant MBL2 haplotypes (82%; 32 of 39)...
July 11, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28660636/pulmonary-co-infections-by-pneumocystis-jirovecii-and-aspergillus-fumigatus-in-non-hiv-patients-a-report-of-two-cases-and-literature-review
#5
REVIEW
Anthi-Marina Markantonatou, Aliki Ioakimidou, Kostoula Arvaniti, Eleni Manou, Vassilios Papadopoulos, Parthena Kiriklidou, Konstantinos Samaras, Anna Kioumi, Timoleon-Achilleas Vyzantiadis
Pneumocystis jirovecii is the causative agent of Pneumocystis pneumonia (PcP), a common and often life-threatening opportunistic infection in HIV-infected patients. However, non-HIV, immunocompromised patients are at risk of PcP as well, whereas the mortality appears to be higher among these patients. Pneumocystis co-infections with other microorganisms are less frequent and only sparse reports of combined PcP and invasive pulmonary fungal infections exist in the literature, especially in the non-HIV patients...
June 28, 2017: Mycoses
https://www.readbyqxmd.com/read/28638602/b-cell-depleting-therapy-with-rituximab-or-ofatumumab-in-immunoglobulin-a-nephropathy-or-vasculitis-with-nephritis
#6
Sigrid Lundberg, Emelie Westergren, Jessica Smolander, Annette Bruchfeld
BACKGROUND: Approximately 30% of adult patients with immunoglobulin A (IgA) nephropathy (IgAN) or IgA vasculitis with nephritis (IgAVN) develop end-stage renal disease during long-term follow-up. In particular, patients with nephritic-nephrotic syndrome have an increased risk of rapid progression. Conventional immunosuppressive therapy with corticosteroids (CSs) may be insufficient for disease control and is associated with a number of side effects. Rituximab (RTX) has been shown to be well tolerated and effective in a range of glomerular diseases, but there is little information on its therapeutic potential in IgAN...
February 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28584626/mmp2-and-mmp9-associate-with-crescentic-glomerulonephritis
#7
Tessa M Phillips, Mitali Fadia, Tom N Lea-Henry, Jonathan Smiles, Giles D Walters, Simon H Jiang
Background: Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by multiple organ involvement. Lupus nephritis (LN) is a common manifestation with a wide variety of histological appearances. Matrix metalloproteinases (MMP) 2 and 9 are gelatinases capable of degrading glomerular basement membrane type IV collagen, which have been associated with LN. We examine the expression of MMP2 and MMP9 in different classes of LN. Methods: MMP2 and MMP9 expression was detected by immunohistochemistry in sections from renal biopsy specimens with class III, class IV and class V LN (total n = 31), crescentic immunoglobulin A nephropathy (n = 6), pauci-immune glomerulonephritis (n = 7), minimal change disease (n = 2), mesangiocapillary glomerulonephritis (n = 7), diabetic nephropathy (n = 12) and histologically normal controls (n = 8)...
April 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28554749/significance-of-m2-macrophages-in-glomerulonephritis-with-crescents
#8
Jun Li, Ya-Fen Yu, Chang-Hua Liu, Cui-Mei Wang
OBJECTIVES: CD163 and CD206, markers of M2 macrophages, possesses anti-inflammatory properties. This study aims to investigate the clinicopathologic significance of M2 macrophages in patients of glomerulonephritis with crescents. METHODS: Renal tissue samples from patients of glomerulonephritis with more than 30% cell or cell-fibrous crescents, including lupus nephritis (LN, n=14), anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV, n=14), IgA nephropathy(IgAN) (n=11), Henoch Schonlein purpura glomerulonephritis(HSPGN)(n=8)were included in this study...
April 20, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28526805/evaluation-of-crescent-formation-as-a-predictive-marker-in-immunoglobulin-a-nephropathy-a-systematic-review-and-meta-analysis
#9
Xue Shao, Bingjue Li, Luxi Cao, Ludan Liang, Jingjuan Yang, Yucheng Wang, Shi Feng, Cuili Wang, Chunhua Weng, Xiujin Shen, Hong Jiang, Jianghua Chen
The 2009 Oxford Classification of immunoglobulin A (IgA) nephropathy (IgAN) identifies four histological features as predictors of renal prognosis: mesangial hypercellularity (M), endocapillary hypercellularity (E), segmental glomerulosclerosis (S), and tubular atrophy/interstitial fibrosis (T). However, the clinical and prognostic significance of crescent formation still remains controversial. Therefore, we performed a meta-analysis to evaluate the association between crescents and kidney outcome in IgAN. A total of 20 studies published from January 2009 to July 2016 involving 5,285 patients were included after systematic searches of PubMed and EMBASE databases...
July 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28515156/anti-glomerular-basement-membrane-disease
#10
Stephen P McAdoo, Charles D Pusey
Anti-glomerular basement membrane (anti-GBM) disease is a rare small vessel vasculitis that affects the capillary beds of the kidneys and lungs. It is an archetypic autoimmune disease, caused by the development of directly pathogenic autoantibodies targeting a well characterized autoantigen expressed in the basement membranes of these organs, although the inciting events that induce the autoimmune response are not fully understood. The recent confirmation of spatial and temporal clustering of cases suggests that environmental factors, including infection, may trigger disease in genetically susceptible individuals...
July 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28391339/mycophenolate-mofetil-therapy-in-immunoglobulin-a-nephropathy-histological-changes-after-treatment
#11
Hannah Beckwith, Nick Medjeral-Thomas, Jack Galliford, Megan Griffith, Jeremy Levy, Liz Lightstone, Andrew Palmer, Candice Roufosse, Charles Pusey, H Terence Cook, Tom Cairns
Background: Endocapillary hypercellularity independently predicts renal outcome in immunoglobulin A nephropathy (IgAN). Mycophenolate mofetil (MMF) treatment is offered to patients presenting to the Imperial College Renal and Transplant Centre with IgAN and histological evidence of endocapillary hypercellularity. Clinical trials of MMF in IgAN have been inconclusive and have been limited by a lack of specific histological inclusion and exclusion criteria when recruiting patients. Evidence of histological improvement following MMF treatment would support its therapeutic use...
January 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28356674/fibrillary-glomerulonephritis-presenting-as-crescentic-glomerulonephritis
#12
H H Shah, J Thakkar, J M Pullman, A T Mathew
Fibrillary glomerulonephritis (FGN) is a rare primary glomerular disease that commonly presents clinically with hypertension, proteinuria, microscopic hematuria, and varying degree of renal insufficiency. Histologically, FGN can present with different patterns of glomerular injury, more commonly mesangioproliferative, membranoproliferative, and membranous nephropathy. While crescent formation has been described in some kidney biopsy series of FGN, crescentic glomerulonephritis pattern of glomerular injury has been rarely described...
March 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28352022/analysis-of-renal-diseases-detected-in-renal-biopsies-of-adult-patients-a-single-center-experience
#13
Salman Imtiaz, Murtaza F Drohlia, Kiran Nasir, Beena Salman, Aasim Ahmad
Renal biopsy is crucial while evaluating for the diagnosis of glomerular, vascular, tubulointerstitial, and genetic diseases. It gives vital information which helps in estimating the disease prognosis, progression, and management. This is the retrospective analysis of all adult patients aged above 18 years, who underwent percutaneous renal biopsy at The Kidney Center Post Graduate Training Institute, Karachi, over a duration of 18 years, i.e., January 1, 1996, to December 2013. Renal graft biopsies and those which were inadequate were excluded from analysis...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28352011/biopsy-of-small-kidneys-a-safe-and-a-useful-guide-to-potentially-treatable-kidney-disease
#14
Kamel El-Reshaid, Wael El-Reshaid, Dalal Al-Bader, Jozsef Varro, John Madda, Hosameldin Tawfik Sallam
Over the past four years, all patients with unexplained rapid progression of their renal disease were subjected to kidney biopsy, despite their small size (<9 cm), to define its etiology. Children, pregnant women, morbidly obese patients, and those with an unstable cardiovascular state, septicemia, bleeding diathesis as well as those kidney size with size <6 cm were excluded from the study. Doppler ultrasound was used to exclude renovascular/ischemic nephropathy. The procedure was performed by an interventional radiologist using a biopsy gun technique and under ultrasound guidance...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28349230/the-japanese-histologic-classification-and-t-score-in-the-oxford-classification-system-could-predict-renal-outcome-in-japanese-iga-nephropathy-patients
#15
Ahmad Baseer Kaihan, Yoshinari Yasuda, Takayuki Katsuno, Sawako Kato, Takahiro Imaizumi, Takaya Ozeki, Manabu Hishida, Takanobu Nagata, Masahiko Ando, Naotake Tsuboi, Shoichi Maruyama
BACKGROUND: The Oxford Classification is utilized globally, but has not been fully validated. In this study, we conducted a comparative analysis between the Oxford Classification and Japanese Histologic Classification (JHC) to predict renal outcome in Japanese patients with IgA nephropathy (IgAN). METHODS: A retrospective cohort study including 86 adult IgAN patients was conducted. The Oxford Classification and the JHC were evaluated by 7 independent specialists...
March 27, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28341274/oxford-classification-of-iga-nephropathy-2016-an%C3%A2-update-from-the-iga-nephropathy-classification-working-group
#16
Hernán Trimarchi, Jonathan Barratt, Daniel C Cattran, H Terence Cook, Rosanna Coppo, Mark Haas, Zhi-Hong Liu, Ian S D Roberts, Yukio Yuzawa, Hong Zhang, John Feehally
Since the Oxford Classification of IgA nephropathy (IgAN) was published in 2009, MEST scores have been increasingly used in clinical practice. Further retrospective cohort studies have confirmed that in biopsy specimens with a minimum of 8 glomeruli, mesangial hypercellularity (M), segmental sclerosis (S), and interstitial fibrosis/tubular atrophy (T) lesions predict clinical outcome. In a larger, more broadly based cohort than in the original Oxford study, crescents (C) are predictive of outcome, and we now recommend that C be added to the MEST score, and biopsy reporting should provide a MEST-C score...
May 2017: Kidney International
https://www.readbyqxmd.com/read/28339709/clinicopathologic-correlations-of-renal-pathology-in-the-adult-population-of-poland
#17
Agnieszka Perkowska-Ptasinska, Artur Bartczak, Malgorzata Wagrowska-Danilewicz, Agnieszka Halon, Krzysztof Okon, Aldona Wozniak, Marian Danilewicz, Henryk Karkoszka, Andrzej Marszalek, Jolanta Kowalewska, Andrzej Mroz, Agnieszka Korolczuk, Andrzej Oko, Alicja Debska-Slizien, Beata Naumnik, Zbigniew Hruby, Marian Klinger, Kazimierz Ciechanowski, Marek Myslak, Wladyslaw Sulowicz, Andrzej Rydzewski, Andrzej Wiecek, Jacek Manitius, Tadeusz Gregorczyk, Stanislaw Niemczyk, Michal Nowicki, Ryszard Gellert, Tomasz Stompor, Monika Wieliczko, Krzysztof Marczewski, Leszek Paczek, Olga Rostkowska, Dominika Deborska-Materkowska, Grazyna Bogdanowicz, Andrzej Milkowski, Magdalena Durlik
Background: This is the first report on the epidemiology of biopsy-proven kidney diseases in Poland. Methods: The Polish Registry of Renal Biopsies has collected information on all (n = 9394) native renal biopsies performed in Poland from 2009 to 2014. Patients' clinical data collected at the time of biopsy, and histopathological diagnoses were used for epidemiological and clinicopathologic analysis. Results: There was a gradual increase in the number of native renal biopsies performed per million people (PMP) per year in Poland in 2009-14, starting from 36 PMP in 2009 to 44 PMP in 2014...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28296731/clinical-outcomes-of-iga-nephropathy-patients-with-different-proportions-of-crescents
#18
Wang Zhang, Qian Zhou, Lingyao Hong, Wenfang Chen, Shicong Yang, Qiongqiong Yang, Wei Chen, Xueqing Yu
Crescents involving more than 50% of glomeruli in IgA nephropathy (IgAN) signify a rapid deterioration of renal function. However, little is known about the prognosis of IgAN patients presenting crescents in less than 50% of glomeruli. We aimed to investigate the clinicopathological characteristics and outcomes of IgAN patients with different proportions of crescents.From January 2000 to December 2011, biopsy-proven primary IgAN patients with histological crescents formation were enrolled in this retrospective cohort study...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28244692/crescentic-iga-nephropathy-in-a-child-effect-of-a-new-combination-therapy
#19
Mitsuhiro Okamoto, Naoki Yokoyama, Kandai Nozu, Koichi Nakanishi, Norishige Yoshikawa
No abstract text is available yet for this article.
February 28, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28221174/iga-nephropathy-an-update
#20
Maria F Soares, Ian S D Roberts
PURPOSE OF REVIEW: To provide an update on recent developments since the publication of the Oxford Classification of IgA nephropathy and to consider lesions that were not included in the original classification. RECENT FINDINGS: Over 20 validation studies of the Oxford Classification have been published. Tubular atrophy/interstitial fibrosis is consistently the strongest predictor of renal survival, whereas mesangial hypercellularity predicts rate of loss of renal function...
May 2017: Current Opinion in Nephrology and Hypertension
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