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IgA nephritis

Keng Thye Woo, Cynthia C Lim, Marjorie W Y Foo, Hwai L Loh, Ai Zhen Jin, Yok Mooi Chin, Jason C J Choo, Puay Hoon Tan, Khuan Yew Chow, Lina H L Choong, Han Khim Tan, Kok Seng Wong, Choong Meng Chan
BACKGROUND: In 1985 we reported that 11% of a cohort of 151 patients with IgA nephritis (IgAN) had developed end-stage renal disease (ESRD) after a follow-up period of 5 years. 15 years later, 35% had developed ESRD. METHODS: We retrieved 125 stored renal biopsy paraffin blocks of the original cohort. From these, 102 patients were included in the present study and scored according to the Oxford classification as 21 specimens with less than 8 glomeruli were excluded and in 2 others, tissue samples were too tiny for a re-block...
November 2016: Clinical Nephrology
Ruimin Hu, Guolan Xing, Huijuan Wu, Zhigang Zhang
BACKGROUND: The concomitant presence of idiopathic membranous nephropathy and IgA nephropathy is rare. Here, we report 9 cases of phospholipase-A2-receptor (PLA2R) positive idiopathic membranous nephritis combined with IgA nephropathy, while reviewing publications regarding the pathological characteristics of this glomerolonephritis complication. CASE PRESENTATION: Nine cases of renal biopsy tissues were retrospectively reviewed, including the clinicopathological features, the results of the immunofluorescence assays, and the electron microscopic examination...
2016: Diagnostic Pathology
Neil Gaskill, Bruce Guido, Cynthia Mago
Henoch-Schonlein purpura is an immunoglobulin A (IgA)-immune complex mediated leukocytoclastic vasculitis that classically manifests with palpable purpura, abdominal pain, arthritis, and hematuria or proteinuria. The condition is much more predominant in children (90% of cases) and commonly follows an upper respiratory infection. We present a case of recurrent Henoch-Schonlein purpura (HSP) complicated by nephritis in an adult female initially categorized as IgA nephropathy (IgAN). We review the pathophysiologic basis of HSP nephritis as the variant of HSP accompanied by renal involvement and its pathogenetic commonality with IgA nephropathy...
2016: Dermatology Online Journal
Clemens L Bockmeyer, Karen Säuberlich, Juliane Wittig, Marc Eßer, Sebastian S Roeder, Udo Vester, Peter F Hoyer, Putri A Agustian, Philip Zeuschner, Kerstin Amann, Christoph Daniel, Jan U Becker
Small nucleolar RNAs (snoRNAs) have been used for normalization in glomerular microRNA (miRNA) quantification without confirmation of validity. Our aim was to identify glomerular reference miRNAs in IgA nephropathy. We compared miRNAs in human paraffin-embedded renal biopsies from patients with cellular-crescentic IgA-GN (n = 5; crescentic IgA-GN) and non-crescentic IgA-GN (n = 5; IgA-GN) to mild interstitial nephritis without glomerular abnormalities (controls, n = 5). Laser-microdissected glomeruli were used for expression profiling of 762 miRNAs by low-density TaqMan arrays (cards A and B)...
August 24, 2016: Scientific Reports
S K Rampelli, N G Rajesh, B H Srinivas, K T Harichandra Kumar, R P Swaminathan, P S Priyamvada
There is limited data on the etiology, clinical and histopathological spectrum and outcomes of crescentic glomerulonephritis (CrGN) in adult Indian population. This prospective study was done to evaluate the etiology, clinicohistological patterns and predictors of outcome of CrGN in South Indian population. All the patients received standard protocol based immunosuppression in addition to supportive care. Immune-complex glomerulonephritis (ICGN) was the most common etiology (n = 31; 77.5%) followed by pauci-immune glomerulonephritis (PauciGN; n = 8; 20%) and anti-glomerular basement membrane disease (n = 1; 2...
July 2016: Indian Journal of Nephrology
M G Chen, X H Ye, H Y Liang, Q Yang
OBJECTIVE: To investigate the incidence, etiology, clinico- pathological characteristics and prognosis in primary IgA nephropathy (IgAN) children with acute kidney injury (AKI). METHOD: Retrospective analysis of the clinical and pathological manifestations and follow-up results of 19 Chlidren, who were associated with AKI in 196 cases of children with IgA nephropathy treated in our department from January, 1996 to Jun, 2012 was performed. RESULT: (1) The 19 cases associated with AKI accounted for 9...
August 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Roberta Fenoglio, Carla Naretto, Bruno Basolo, Giacomo Quattrocchio, Michela Ferro, Paola Mesiano, Giulietta Beltrame, Dario Roccatello
Henoch-Schonlein purpura, also called IgA-vasculitis, is a systemic small vessels vasculitis with immunoglobulin A1-dominant immune deposits. The optimal treatment remains controversial. Because IgA-vasculitis is characterized by leukocyte infiltration of the blood vessel walls along with immunoglobulin A deposition, and because glucocorticosteroids inhibit inflammatory processes, early administration of glucocorticosteroids has been postulated to be effective, but this indication remains controversial. Immunosuppressive agents (azathioprine, cyclophosphamide, cyclosporine, mycophenolate) have been used in combination with glucocorticosteroids without definitive evidence of effectiveness...
July 23, 2016: Immunologic Research
Michelle M O'Shaughnessy, Sai Liu, Maria E Montez-Rath, Colin R Lenihan, Richard A Lafayette, Wolfgang C Winkelmayer
Differences in kidney transplantation outcomes across GN subtypes have rarely been studied. From the US Renal Data System, we identified all adult (≥18 years) first kidney transplant recipients (1996-2011) with ESRD attributed to one of six GN subtypes or two comparator kidney diseases. We computed hazard ratios (HRs) for death, all-cause allograft failure, and allograft failure excluding death as a cause (competing risks framework) using Cox proportional hazards regression. Among the 32,131 patients with GN studied, patients with IgA nephropathy (IgAN) had the lowest mortality rates and patients with IgAN or vasculitis had the lowest allograft failure rates...
July 18, 2016: Journal of the American Society of Nephrology: JASN
Kibriya Fidan, Ipek Isik Gonul, Bahar Büyükkaragöz, Emel Isiyel, Turgay Arinsoy, Oguz Soylemezoglu
Renal biopsy is the gold standard method for determining the diagnosis, treatment, and prognosis in children with renal disease. This study aims to evaluate the histopathological features of pediatric renal biopsies obtained from the national nephrology registry in the last two decades. Data recorded in the Turkish Society of Nephrology Registry System (TSNRS) in 1991 as well as in between 2001 and 2010 were analyzed. A total of 3892 biopsies were recorded; with the least number in 1991 (total 103 biopsies from 17 centers) and the highest number in 2008 (total 654 biopsies from 23 centers)...
September 2016: Renal Failure
Sveta Janković, Marijana Nikolić, Aleksandra Simović, Ana Vujić
INTRODUCTION: Henoch-Schönlein purpura (HSP) is a small blood vessel vasculitis, which usually manifests during childhood. The exact cause of the disease is unknown. CASE REPORT: We reported a 14-year-old girl who had been admitted to our clinic due to the appearance of red macules on her extremities and face, vomiting, and pain in the abdomen and joints. The patient was initially diagnosed with Henoch-Schönlein purpura. At the end of the fourth week of illness, larvae of Strongyloides stercoralis were detected in stool samples...
May 2016: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
Mary H Foster
Animal models are indispensable for the study of glomerulonephritis, a group of diseases that destroy kidneys but for which specific therapies do not yet exist. Novel interventions are urgently needed, but their rational design requires suitable in vivo platforms to identify and test new candidates. Animal models can recreate the complex immunologic microenvironments that foster human autoimmunity and nephritis and provide access to tissue compartments not readily examined in patients. Study of rat Heymann nephritis identified fundamental disease mechanisms that ultimately revolutionized our understanding of human membranous nephropathy...
September 1, 2016: American Journal of Physiology. Renal Physiology
Kee Hun Do, Seong-Hwan Park, Juil Kim, Mira Yu, Yuseok Moon
The polymeric IgR (pIgR) is a central component in the transport of IgA across enterocytes and thereby plays a crucial role in the defense against enteropathogens and in the regulation of circulating IgA levels. The present study was performed to address the novel regulation of pIgR expression in intestinal epithelia undergoing ribosome inactivation. Insults to mucosa that led to ribosome inactivation attenuated pIgR expression in enterocytes. However, IFN regulatory factor-1 (IRF-1) as a central transcription factor of pIgR induction was superinduced by ribosome inactivation in the presence of IFN-γ as a result of mRNA stabilization by the RNA-binding protein HuR...
August 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
Leonardo Sales da Silva, Bruna Laiza Fontes Almeida, Ana Karla Guedes de Melo, Danielle Christine Soares Egypto de Brito, Alessandra Sousa Braz, Eutília Andrade Medeiros Freire
Systemic erythematosus lupus (SLE) is a multisystemic autoimmune disease which has nephritis as one of the most striking manifestations. Although it can coexist with other autoimmune diseases, and determine the predisposition to various infectious complications, SLE is rarely described in association with non-lupus nephropathies etiologies. We report the rare association of SLE and primary IgA nephropathy (IgAN), the most frequent primary glomerulopathy in the world population. The patient was diagnosed with SLE due to the occurrence of malar rash, alopecia, pleural effusion, proteinuria, ANA 1: 1280, nuclear fine speckled pattern, and anticardiolipin IgM and 280U/mL...
May 2016: Revista Brasileira de Reumatologia
Beom Jin Lim, Jae Il Shin, Sung-Eun Choi, Hyechang Rhim, Jae Seung Lee, Pyung Kil Kim, Hyeon Joo Jeong, Ji Hong Kim
BACKGROUND: Little information is currently available on the development of tubulointerstitial lesions in children with Henoch-Schönlein nephritis (HSN). To identify the impact of the development of tubulointerstitial changes in HSN, we retrospectively analyzed renal biopsies obtained from children with HSN. METHODS: Twenty-eight children with HSN from whom serial renal biopsies had been obtained before and after immunosuppressive therapy were enrolled in the study...
November 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
R Nada, A Kumar, V G Kumar, K L Gupta, K Joshi
Renal biopsy interpretation requires histopathology, direct immunofluorescence (DIF) and electron microscopy. Formalin-fixed, paraffin-embedded tissue (FFPE) sent for light microscopy can be used for DIF after antigen retrieval. However, complement staining has not been satisfactory. We standardized DIF using proteinase-K for antigen retrieval in FFPE renal biopsies. A pilot study was conducted on known cases of membranous glomerulonephritis (MGN), membranoproliferative type-1 (MPGN-1), immunoglobulin A nephropathy (IgAN), and anti-glomerular basement disease (anti-GBM)...
May 2016: Indian Journal of Nephrology
Xiu Xu, Yong Ning, Weifeng Shang, Menglan Li, Ming Ku, Qing Li, Yueqiang Li, Wei Dai, Jufang Shao, Rui Zeng, Min Han, Xiaofeng He, Ying Yao, Yongman Lv, Xiaocheng Liu, Shuwang Ge, Gang Xu
The purpose of this study is to investigate the changing spectrum and clinicopathologic correlation of biopsy-proven renal diseases in central China. We retrospectively analyzed data of 4931 patients who underwent renal biopsy in ten hospitals between September 1994 and December 2014. Among them, 81.55% were primary glomerular diseases (GD), and 13.02% were secondary GD. IgA nephropathy (IgAN) was the most common primary GD (43.45%), followed by focal glomerulonephritis (16.79%), mesangial proliferative glomerulonephritis (MsPGN, 14...
August 2016: Renal Failure
Beth Vogt
Although kidney disease is much less common in children than in adults, clinicians must remain alert for the renal conditions that occur in this population because prompt diagnosis and management are essential. Acute postinfectious glomerulonephritis occurs as an uncommon sequela of streptococcal and other infections. Management is focused on providing supportive measures, including management of fluid-electrolyte imbalance and hypertension, until the patient recovers. Immunoglobulin (Ig) A nephropathy is a primary glomerulonephritis related to abnormal IgA glycosylation...
May 2016: FP Essentials
Jasmit S Minhas, Paige G Wickner, Aidan A Long, Aleena Banerji, Kimberly G Blumenthal
BACKGROUND: Vancomycin is a broad-spectrum antibiotic whose use may be limited by adverse drug reactions (ADRs). Although vancomycin toxic effects are known, there are limited data on vancomycin hypersensitivity reactions (HSRs). OBJECTIVE: To understand the most commonly reported vancomycin HSRs through systematic case review. METHODS: We performed a literature search for English-language case reports and series from 1982 through 2015 (last search July 31, 2015) on Ovid MEDLINE and PubMed...
June 2016: Annals of Allergy, Asthma & Immunology
Sangeetha Murugapandian, Iyad Mansour, Mohammad Hudeeb, Khaled Hamed, Emad Hammode, Babitha Bijin, Sepehr Daheshpour, Bijin Thajudeen, Pradeep Kadambi
Glomerulonephritis stands third in terms of the etiologies for end-stage kidney disease in the USA. The aim of this study was to look at the patterns of biopsy-proven glomerulonephritis based on data from a single center.Kidney biopsy specimens of all patients above the age of 18 years, over a 10-year period, who had diagnosis of nondiabetic glomerular disease, were selected for the study.The most common histopathological diagnosis was focal and segmental glomerulosclerosis (FSGS) (22.25%, 158/710) followed by membranous nephropathy (20...
May 2016: Medicine (Baltimore)
Maciej Szymczak, Jakub Kuźniar, Wacław Kopeć, Marcelina Żabińska, Zofia Marchewka, Katarzyna Kościelska-Kasprzak, Marian Klinger
Heparanase is a β-glucuronidase that cleaves sugar chains of heparan sulfate proteoglycans. It is believed that heparanase may be involved in the pathogenesis of proteinuria. The aim of this study was to assess the significance of heparanase in the pathogenesis of particular glomerulonephritis types. The evaluation of heparanase activity in serum, urine, and granulocytes and superoxide dismutase (SOD) activity in granulocytes of patients with lupus nephritis (n = 17), membranous nephropathy (n = 11), IgA nephropathy (n = 12), focal and segmental glomerulosclerosis (n = 18), mesangiocapillary glomerulonephritis (n = 12) and in 19 healthy volunteers were performed...
April 18, 2016: Archivum Immunologiae et Therapiae Experimentalis
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