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IgA nephritis

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https://www.readbyqxmd.com/read/29130997/non-diabetic-kidney-disease-in-type-2-diabetic-patients-prevalence-clinical-predictors-and-outcomes
#1
Siyar Erdogmus, Saba Kiremitci, Zeynep Kendi Celebi, Serkan Akturk, Neval Duman, Kenan Ates, Sehsuvar Erturk, Gokhan Nergizoglu, Sim Kutlay, Sule Sengul, Arzu Ensari, Kenan Keven
BACKGROUND/AIMS: Diabetic kidney disease (DKD) is one of the most frequent microvascular complications of diabetes and is the leading cause of end-stage kidney disease worldwide. In patients with diabetes, non-diabetic kidney disease (NDKD) can also occur. NDKD can be either alone or superimposed with the DKD. In this study, we aimed to investigate the utility of kidney biopsy in patients with type 2 diabetes mellitus (T2DM) and the predictability of diagnosing DKD versus NDKD from clinical and laboratory data...
November 1, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29126311/value-of-biomarkers-for-predicting-immunoglobulin-a-vasculitis-nephritis-outcome-in-an-adult-prospective-cohort
#2
Laureline Berthelot, Agnès Jamin, Denis Viglietti, Jonathan M Chemouny, Hamza Ayari, Melissa Pierre, Pierre Housset, Virginia Sauvaget, Margarita Hurtado-Nedelec, François Vrtovsnik, Eric Daugas, Renato C Monteiro, Evangeline Pillebout
Background: Henoch-Schönlein purpura, more recently renamed immunoglobulin A vasculitis (IgAV), is a systemic vasculitis characterized by IgA deposits. The current markers used to assess IgAV inaccurately evaluate the risk of nephritis occurrence and its long-term outcomes. The current study assessed biomarkers of nephritis outcomes. Methods: This French multicentre prospective study enrolled 85 adult patients at the time of disease onset. Patients were assessed for clinical and biological parameters and re-examined after 1 year...
November 3, 2017: Nephrology, Dialysis, Transplantation
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
#3
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/29106637/glomerular-disease-frequencies-by-race-sex-and-region-results-from-the-international-kidney-biopsy-survey
#4
Michelle M O'Shaughnessy, Susan L Hogan, Bawana D Thompson, Rosanna Coppo, Agnes B Fogo, J Charles Jennette
Background: Large-scale studies comparing glomerular disease frequencies across continents are lacking. Methods: We surveyed 29 nephropathology laboratories in four continents using a standardized data collection form. We obtained recent consecutive kidney biopsy diagnosis frequencies at each center and summary demographics for each diagnosis. This report focuses on glomerular disease frequencies by region and race/ethnicity. Results: Among 42 603 glomerular disease diagnoses reported (median age 47 years, 52% male, 57% white), from a total of 60 340 diagnoses, glomerular disease subtype frequencies differed considerably by continent...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29106627/bi-nucleation-of-podocytes-is-uniformly-accompanied-by-foot-processes-widening-in-renal-disease
#5
Johanna Mühldorfer, Eva Pfister, Maike Büttner-Herold, Monika Klewer, Kerstin Amann, Christoph Daniel
Background: Podocytes are terminally differentiated glomerular cells expressing a highly complex architecture and lacking the ability to proliferate. However, during renal injury or stress these cells can re-enter into the cell cycle but fail to divide. As a consequence, bi- and multi-nucleated podocytes can be identified in renal biopsies from patients with various kidney diseases. It is still unclear whether the occurrence of such cells is dependent on or correlates with renal damage and if bi- or multi-nucleation results in ultrastructural alterations such as e...
July 2, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29101552/long-term-renal-outcome-in-pediatric-glomerulonephritis-associated-with-crescent-formation
#6
Pornpimol Rianthavorn, Manunya Chacranon
BACKGROUND: Information on long-term renal outcome of pediatric glomerulonephritis associated with crescent formation is limited. A single center retrospective study was conducted to assess long-term renal survival and to determine whether the 2010 classification for antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis can predict renal outcome in pediatric glomerulonephritis associated with crescent formation. METHODS: Biopsy and clinical data of children, aged ≤ 18 years with ≥ 10 glomeruli and ≥ 10% crescentic glomeruli during January 1998 to December 2015, were reviewed...
November 3, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29092674/autoantibodies-against-complement-components-in-systemic-lupus-erythematosus-role-in-the-pathogenesis-and-clinical-manifestations
#7
M H Hristova, V S Stoyanova
Many complement structures and a number of additional factors, i.e. autoantibodies, receptors, hormones and cytokines, are implicated in the complex pathogenesis of systemic lupus erythematosus. Genetic defects in the complement as well as functional deficiency due to antibodies against its components lead to different pathological conditions, usually clinically presented. Among them hypocomplementemic urticarial vasculitis, different types of glomerulonephritis as dense deposit disease, IgA nephropathy, atypical haemolytic uremic syndrome and lupus nephritis are very common...
December 2017: Lupus
https://www.readbyqxmd.com/read/29037908/new-insights-in-the-pathogenesis-of-immunoglobulin-a-vasculitis-henoch-sch%C3%A3-nlein-purpura
#8
REVIEW
Marieke H Heineke, Aranka V Ballering, Agnès Jamin, Sanae Ben Mkaddem, Renato C Monteiro, Marjolein Van Egmond
Immunoglobulin A vasculitis (IgAV), also referred to as Henoch-Schönlein purpura, is the most common form of childhood vasculitis. The pathogenesis of IgAV is still largely unknown. The disease is characterized by IgA1-immune deposits, complement factors and neutrophil infiltration, which is accompanied with vascular inflammation. Incidence of IgAV is twice as high during fall and winter, suggesting an environmental trigger associated to climate. Symptoms can resolve without intervention, but some patients develop glomerulonephritis with features similar to IgA nephropathy that include hematuria, proteinuria and IgA deposition in the glomerulus...
October 14, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29033424/diffuse-alveolar-hemorrhage-in-iga-vasculitis-with-an-atypical-presentation
#9
Yuhei Ito, Machiko Arita, Shogo Kumagai, Reoto Takei, Maki Noyama, Fumiaki Tokioka, Takumi Nagamoto, Chieko Kawakita, Kenichiro Asano, Chika Okita, Tadashi Ishida
IgA vasculitis (IgAV) commonly occurs in young children, who present with a tetrad of purpura, abdominal pain, arthralgia and nephritis. Diffuse alveolar hemorrhage (DAH) is a rare complication of IgAV. We herein report an adult case of IgAV with a presentation of DAH and nephritis (pulmonary renal syndrome, PRS), but without other typical manifestations, such as purpura, abdominal pain and arthralgia. A 33-year-old man presented with hemoptysis and a low-grade fever and was diagnosed to have IgAV based on the results of a renal biopsy...
October 16, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28992289/transcriptomics-in-kidney-biopsy-is-an-untapped-resource-for-precision-therapy-in-nephrology-a-systematic-review
#10
Francesco Paolo Schena, Ionut Nistor, Claudia Curci
Background: The diagnosis of glomerular diseases is based on the evaluation of histological lesions in renal tissue by means of light and electronic microscopy, and immunofluorescence technique. Frozen and archival formalin-fixed paraffin-embedded kidney biopsies represent a stored resource for high-throughput technologies. Transcriptomics makes it possible to study the whole gene-expression profile of cells and tissues in a specific period and/or condition. The results, whether considered alone or integrated with other omics data, could help to improve existing knowledge about the pathogenetic mechanisms of glomerulopathies...
August 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28983704/presentation-of-pediatric-henoch-sch%C3%A3-nlein-purpura-nephritis-changes-with-age-and-renal-histology-depends-on-biopsy-timing
#11
Imke Hennies, Charlotte Gimpel, Jutta Gellermann, Kristina Möller, Brigitte Mayer, Katalin Dittrich, Anja K Büscher, Matthias Hansen, Wiebke Aulbert, Elke Wühl, Richard Nissel, Gessa Schalk, Lutz T Weber, Michael Pohl, Simone Wygoda, Rolf Beetz, Günter Klaus, Henry Fehrenbach, Sabine König, Hagen Staude, Ortraud Beringer, Martin Bald, Ulrike Walden, Christian von Schnakenburg, Gunhard Bertram, Michael Wallot, Karsten Häffner, Thorsten Wiech, Peter F Hoyer, Martin Pohl
BACKGROUND: This study correlates the clinical presentation of Henoch-Schönlein purpura nephritis (HSPN) with findings on initial renal biopsy. METHODS: Data from 202 pediatric patients enrolled in the HSPN registry of the German Society of Pediatric Nephrology reported by 26 centers between 2008 and 2014 were analyzed. All biopsy reports were re-evaluated for the presence of cellular crescents or chronic pathological lesions (fibrous crescents, glomerular sclerosis, tubular atrophy >5%, and interstitial fibrosis >5%)...
October 5, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28937067/histopathological-patterns-of-renal-diseases-in-egyptian-children-a-single-center-experience
#12
Maher Ahmed Abdel-Hafez, Hend Abdel-Nabi, Mohamed El-Gamasy, Hossam Zayton, Ibrahim Nassar
The present cross-sectional, retrospective study was aimed to determine the histopathological spectrum of renal diseases in Egyptian children and to evaluate the indications, safety, and efficacy of percutaneous renal biopsy (PRB) in a large tertiary center in Egypt. PRBs performed at the Department of Pediatrics, Tanta University Hospital over a period of nine years (from January 2007 to December 2015) were included. Light microscopic (LM) examination was performed in all cases while immunofluorescence and electron microscopic examination were performed in selected cases...
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28914855/-late-onset-rheumatoid-arthritis-in-a-patient-with-successfully-treated-iga-nephropathy
#13
N V Chebotareva, I N Bobkova, S V Gulyaev
The paper describes a rare clinical case of rheumatoid arthritis (RA) that developed in a patient 9 years after diagnosing IgA nephropathy. Kidney disease was characterized by a stable course with moderate urinary syndrome, hypertension, and reduced renal function. Immunosuppressive therapy using glucocorticosteroids and then mycophenolic acid led to remission of nephritis and recovery of renal function. However, the absence of nephritis activity and discontinuation of immunosuppressants was responsible for articular syndrome...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28904302/the-incidence-and-severity-of-iga-vasculitis-with-nephritis-over-a-10-year-period-in-our-hospital
#14
Keishi Yamane, Yukihiko Kawasaki, Ryo Maeda, Shinichiro Ohara, Kazuhide Suyama, Mitsuaki Hosoya
BACKGROUND: To evaluate the recent frequency of onset and severity of IgA vasculitis with nephritis (IgAVN) in Fukushima Prefecture, we examined the epidemiology and clinico-pathological manifestations of IgAVN in our hospital over a 10-year period. METHODS: We enrolled 18 patients with IgAVN treated between 2004 and 2013 in the Department of Pediatrics, Fukushima Medical University School of Medicine. These patients were divided into two groups; Group 1 consisted of 12 patients with IgAVN hospitalized between 2004 and 2008 and Group 2 consisted of 6 patients with IgAVN hospitalized between 2009 and 2013...
September 14, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28891413/post-infectious-glomerulonephritis
#15
Ramnath Balasubramanian, Stephen D Marks
Post-infectious glomerulonephritis (PIGN) is one of the most common causes of acute glomerulonephritis in children. Although post-streptococcal glomerulonephritis (PSGN) is still common, there is a wide spectrum of causative agents of PIGN. Non-streptococcal organisms are emerging as the main aetiological agents in high-income countries. Nephritis-associated plasmin receptor (NAPlr) and streptococcal pyrogenic exotoxin B (SPeB) are the two common antigens implicated in the pathogenesis of PSGN. Both NAPlr and SPeB activate the alternative complement pathway, resulting in low serum complement levels, and have an affinity to plasmin and glomerular proteins...
September 11, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28881511/-role-of-igg-antibody-to-galactose-deficient-iga1-in-children-with-iga-nephropathy
#16
N Zhou, H Zhang, X R Liu, Q Sun, Q Meng, Z Chen, Y Shen
Objective: In order to learn the serum level of galactose-deficient IgA1 (GdIgA1), IgG antibody to galactose-deficient IgA1(GdIgA1-IgG) and the clinical role of them in IgA nephropathy(IgAN) children. Method: We compared blood levels of GdIgA1, GdIgA1-IgG in 33 children with IgAN, 38 children with other renal disease (including focal segmental glomerular nephritis, minimal change disease, Alport syndrome and thin basement membrane nephropathy) as disease controls, 35 healthy children as normal controls with enzyme-linked immunosorbent assay(ELISA)...
September 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28863792/genetics-of-immune-mediated-glomerular-diseases-focus-on-complement
#17
REVIEW
Marina Noris, Giuseppe Remuzzi
The spectrum of immune-mediated glomerular diseases is wide, ranging from rare diseases with well-recognized genetic origins to more common and multifactorial diseases. Immune-mediated glomerular injury is complex and involves both the innate and the adaptive immune systems. In the past 20 years a huge effort has been undertaken to unravel the genetic basis of immune-mediated glomerular diseases. The discovery of abnormalities in genes encoding proteins of the alternative pathway of complement in more than 50% of patients with atypical hemolytic uremic syndrome (aHUS), and in approximately 20% of patients with membranoproliferative glomerulonephritis (MPGN), has highlighted the role of this complement pathway in the pathogenesis of immune-mediated glomerular diseases...
September 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28846194/spectrum-of-biopsy-proven-renal-disease-in-south-asian-children-two-decades-at-a-tropical-tertiary-care-centre
#18
Anjali Mohapatra, Shailesh Kakde, Vellaichamy M Annapandian, Anna T Valson, Neelaveni Duhli, Anila Korula, Smita Mary Matthai, Anna B Pulimood, Vinoi G David, Suceena Alexander, Shibu Jacob, Santosh Varughese, Basu Gopal, Tamilarasi Veerasamy, George T John
AIM: We report findings from a large single centre paediatric renal biopsy cohort in South Asia. METHODS: We analyzed all renal biopsies performed on children aged ≤18 years between 1996 and 2015 at our centre. The clinical characteristics and histological diagnosis pertaining to each case, distribution of renal diseases in children with various clinical presentations, and changes in the pattern of kidney disease during the study period were analyzed. RESULTS: A total of 1740 paediatric kidney biopsies were performed during the study period...
August 28, 2017: Nephrology
https://www.readbyqxmd.com/read/28790860/the-level-of-urinary-semaphorin3a-is-associated-with-disease-activity-in-patients-with-minimal-change-nephrotic-syndrome
#19
Akiko Inoue-Torii, Shinji Kitamura, Jun Wada, Kenji Tsuji, Hirofumi Makino
Semaphorin3A is a secreted protein known to be involved in organogenesis, immune responses and cancer. In the kidney, semaphorin3A is expressed in the glomerular podocytes, distal tubules and collecting tubules, and believed to play a role in the regulation of the kidney development and function. We examined the serum and urinary semaphorin3A levels in 72 patients with renal disease and 5 healthy volunteers. The patients had been diagnosed with thin basement membrane disease (n=4), minimal change nephrotic syndrome (MCNS; n=22), IgA nephritis (n=21), membranous nephropathy (n=16) and focal segmental glomerular sclerosis (n=9)...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28722531/patterns-of-renal-disease-in-south-korea-a-20-year-review-of-a-single-center-renal-biopsy-database
#20
Ho Sik Shin, Dae Hyeon Cho, Soo Kyoung Kang, Hyun Jeong Kim, Soo Young Kim, Joung Wook Yang, Gyong Hoon Kang, Ye Na Kim, Yeonsoon Jung, Bong-Kwon Cheon, Hark Rim
BACKGROUND: Several registries and centers have reported the results of renal biopsies from different parts of the world. As there are few data regarding the epidemiology of glomerulonephritis (GN) in South Korea, we conducted this study on renal biopsy findings during the last 20 years from a single center. METHODS: Data for 818 patients who underwent renal biopsy at our center between 1992 and 2011 were collected retrospectively. All kidney specimens were examined with light microscopy (LM) and immunofluorescent microscopy (IF)...
November 2017: Renal Failure
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