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"IgA nephropathy"

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https://www.readbyqxmd.com/read/28221174/iga-nephropathy-an-update
#1
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...
February 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28219912/anticoagulant-related-nephropathy-in-a-patient-with-iga-nephropathy
#2
Mário Góis, Ariana Azevedo, Fernanda Carvalho, Fernando Nolasco
Anticoagulant-related nephropathy is a type of acute kidney injury caused by overcoagulation. We describe a case of an 84-year-old man with arterial hypertension, coronary heart disease and atrial fibrillation treated with acenocoumarol, who presented with haematoproteinuria and acute kidney injury during a phase of excessive anticoagulation. In addition to IgA nephropathy, renal biopsy also revealed acute tubular necrosis, red blood cell casts and positive iron staining in tubular cells. After this acute episode, renal function improved and proteinuria decreased below the nephrotic range...
February 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28215945/mycophenolate-mofetil-combined-with-prednisone-versus-full-dose-prednisone-in-iga-nephropathy-with-active-proliferative-lesions-a-randomized-controlled-trial
#3
Jin-Hua Hou, Wei-Bo Le, Nan Chen, Wei-Ming Wang, Zhang-Suo Liu, Dong Liu, Jiang-Hua Chen, Jiong Tian, Ping Fu, Zhang-Xue Hu, Cai-Hong Zeng, Shao-Shan Liang, Min-Lin Zhou, Hai-Tao Zhang, Zhi-Hong Liu
BACKGROUND: Observational studies suggest that patients with immunoglobulin A nephropathy (IgAN) with active proliferative lesions show a good response to immunosuppressive treatment. STUDY DESIGN: Multicenter, prospective, randomized, controlled trial. SETTING & PARTICIPANTS: 176 patients with IgAN with active proliferative lesions (cellular and fibrocellular crescents, endocapillary hypercellularity, or necrosis), proteinuria with protein excretion ≥ 1...
February 15, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28215100/targeting-baff-and-april-in-systemic-lupus-erythematosus-and-other-antibody-associated-diseases
#4
Eileen Samy, Stephen Wax, Bertrand Huard, Henry Hess, Pascal Schneider
The B cell-stimulating molecules, BAFF (B cell activating factor) and APRIL (a proliferation-inducing ligand), are critical factors in the maintenance of the B cell pool and humoral immunity. In addition, BAFF and APRIL are involved in the pathogenesis of a number of human autoimmune diseases, with elevated levels of these cytokines detected in the sera of patients with systemic lupus erythematosus (SLE), IgA nephropathy, Sjögren's syndrome, and rheumatoid arthritis. As such, both molecules are rational targets for new therapies in B cell-driven autoimmune diseases, and several inhibitors of BAFF or BAFF and APRIL together have been investigated in clinical trials...
January 2, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28209808/galactosylation-of-iga1-is-associated-with-common-variation-in-c1galt1
#5
Daniel P Gale, Karen Molyneux, David Wimbury, Patricia Higgins, Adam P Levine, Ben Caplin, Anna Ferlin, Peiran Yin, Christopher P Nelson, Horia Stanescu, Nilesh J Samani, Robert Kleta, Xueqing Yu, Jonathan Barratt
IgA nephropathy (IgAN), an important cause of kidney failure, is characterized by glomerular IgA deposition and is associated with changes in O-glycosylation of the IgA1 molecule. Here, we sought to identify genetic factors contributing to levels of galactose-deficient IgA1 (Gd-IgA1) in white and Chinese populations. Gd-IgA1 levels were elevated in IgAN patients compared with ethnically matched healthy subjects and correlated with evidence of disease progression. White patients with IgAN exhibited significantly higher Gd-IgA1 levels than did Chinese patients...
February 16, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28209246/the-clinical-course-of-iga-nephropathy-after-kidney-transplantation-and-its-management
#6
REVIEW
Sophia Lionaki, Konstantinos Panagiotellis, Christine Melexopoulou, John N Boletis
Immunoglobulin (Ig) A nephropathy is one of the most common primary glomerulonephritides worldwide causing end stage renal disease in up to 20-40% of affected patients, nearly two decades post diagnosis. Kidney transplantation is the treatment of choice for patients with renal failure, secondary to glomerular diseases. However, IgA nephropathy has a strong tendency to recur in the graft, and although initially thought to be a benign condition, several reports of graft loss, due to recurrent IgA nephropathy, there have been over the last three decades...
February 2, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28208683/plasma-gelsolin-induced-glomerular-fibrosis-via-the-tgf-%C3%AE-1-smads-signal-transduction-pathway-in-iga-nephropathy
#7
Lei Zhang, Changsong Han, Fei Ye, Yan He, Yinji Jin, Tianzhen Wang, Yiqi Wu, Yang Jiang, Fengmin Zhang, Xiaoming Jin
Glomerular fibrosis has been shown to be closely related to the progression and prognosis of IgA nephropathy (IgAN). However, mechanism underlying IgAN glomerular fibrosis remains unclear. Recently, our study showed that plasma gelsolin (pGSN) was decreased in the serum of an IgAN mouse model and that pGSN deposition was found in the glomeruli. Another cytokine, TGF-β1, which is closely related to glomerular fibrosis, was also found to be highly expressed in the glomeruli. In the present study, we report that pGSN induces glomerular fibrosis through the TGF-β1/Smads signal transduction pathway...
February 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28207635/kidney-transplantation-rates-across-glomerulonephritis-subtypes-in-the-united-states
#8
Michelle M O'Shaughnessy, Sai Liu, Maria E Montez-Rath, Richard A Lafayette, Wolfgang C Winkelmayer
BACKGROUND: Whether kidney transplantation rates differ by glomerulonephritis (GN) subtype remains largely unknown. METHODS: Using the US Renal Data System, we identified all adult patients with ESRD attributed to 1 of 6 GN subtypes who initiated dialysis in the US (1996-2013). Patients with diabetic nephropathy (DN) and autosomal-dominant polycystic kidney disease (ADPKD) served as "external" non-GN comparators. Using Cox proportional hazards regression, with death considered a competing risk, we estimated hazard ratios [HRs (95% confidence intervals)] for first kidney transplantation, controlling for year, demographics, comorbidities, socioeconomic factors, and Organ Procurement Organization (OPO)...
February 15, 2017: Transplantation
https://www.readbyqxmd.com/read/28203107/clinical-validation-of-immunoglobulin-a-nephropathy-diagnosis-in-swedish-biopsy-registers
#9
Simon Jarrick, Sigrid Lundberg, Adina Welander, C Michael Fored, Jonas F Ludvigsson
AIMS: The aims of this study were to validate the diagnosis of IgA nephropathy (IgAN) in Swedish biopsy registers against patient charts and to describe the clinical characteristics of patients with a biopsy indicating IgAN. METHODS: This is a population-based cohort study. Out of 4,069 individuals with a renal biopsy consistent with IgAN (biopsies performed in 1974-2011), this study reviewed patient charts of a random subset of 127 individuals. Clinical and biopsy characteristics at the time of biopsy were evaluated, and positive predictive values (PPV) were calculated with 95% confidence intervals (CI)...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28201996/urinary-sediment-mirnas-reflect-tubulointerstitial-damage-and-therapeutic-response-in-iga-nephropathy
#10
Shuang Liang, Guang-Yan Cai, Zhi-Yu Duan, Shu-Wen Liu, Jie Wu, Yang Lv, Kai Hou, Zuo-Xiang Li, Xue-Guang Zhang, Xiang-Mei Chen
BACKGROUND: Immunoglobulin A nephropathy (IgAN) is the most common glomerulonephritis worldwide. The clinical spectrum of IgAN varies from minor urinary abnormalities to rapidly progressive renal failure. Evaluation of the disease by repeated renal biopsy is not practical due to its invasive procedure. Urinary sediment miRNAs promise to serve as non-invasive biomarkers to assess kidney injury of IgAN. METHODS: Fifty two biopsy-proven IgAN patients and twenty five healthy controls were enrolled in the study...
February 15, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28197885/c4d-deposits-in-iga-nephropathy-where-does-complement-activation-come-from
#11
EDITORIAL
Rosanna Coppo
No abstract text is available yet for this article.
February 14, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28196748/up-regulation-of-cx3cr1-on-tonsillar-cd8-positive-cells-in-patients-with-iga-nephropathy
#12
Ryuki Otaka, Miki Takahara, Seigo Ueda, Toshihiro Nagato, Kan Kishibe, Kenichiro Nomura, Akihiro Katada, Tatsuya Hayashi, Yasuaki Harabuchi
Although tonsillectomy are used as therapeutic options to prevent chronic renal failure in IgA nephropathy (IgAN) patients, the relationship between IgAN and tonsils is not fully proved by basic research. Recently, circulating CX3CR1-positive cells were reportedly involved in promoting hematuria in patients with IgAN. In this study, we focused on the expression of CX3CR1 in tonsillar mononuclear cells in IgAN patients. Immunohistological analysis revealed greater distribution of CX3CR1-positive cells in the inter-follicular area of tonsils in IgAN patients than in non-IgAN patients...
February 11, 2017: Human Immunology
https://www.readbyqxmd.com/read/28193247/efficacy-and-safety-of-calcineurin-inhibitor-treatment-for-iga-nephropathy-a-meta-analysis
#13
Yu-Huan Song, Guang-Yan Cai, Yue-Fei Xiao, Yi-Ping Wang, Bao-Shi Yuan, Yuan-Yuan Xia, Si-Yang Wang, Pu Chen, Shu-Wen Liu, Xiang-Mei Chen
BACKGROUND: IgA nephropathy is the most common progressive glomerular disease to end stage renal failure worldwide. Calcineurin inhibitors (CNIs) is a selective immunosuppressant widely used in organ transplantation. The efficacy and safety of calcineurin inhibitors for the treatment of IgA nephropathy remain uncertain. METHODS: We performed a systematic literature search using the PubMed, Embase, Science Citation Index, Ovid evidence-based medicine, Chinese Biomedical Literature (CBM) and Chinese science and technology periodicals (CNKI, VIP, and Wan Fang) for randomized, controlled trials of CNIs therapy of IgA nephropathy...
February 13, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28187132/gwas-for-serum-galactose-deficient-iga1-implicates-critical-genes-of-the-o-glycosylation-pathway
#14
Krzysztof Kiryluk, Yifu Li, Zina Moldoveanu, Hitoshi Suzuki, Colin Reily, Ping Hou, Jingyuan Xie, Nikol Mladkova, Sindhuri Prakash, Clara Fischman, Samantha Shapiro, Robert A LeDesma, Drew Bradbury, Iuliana Ionita-Laza, Frank Eitner, Thomas Rauen, Nicolas Maillard, Francois Berthoux, Jürgen Floege, Nan Chen, Hong Zhang, Francesco Scolari, Robert J Wyatt, Bruce A Julian, Ali G Gharavi, Jan Novak
Aberrant O-glycosylation of serum immunoglobulin A1 (IgA1) represents a heritable pathogenic defect in IgA nephropathy, the most common form of glomerulonephritis worldwide, but specific genetic factors involved in its determination are not known. We performed a quantitative GWAS for serum levels of galactose-deficient IgA1 (Gd-IgA1) in 2,633 subjects of European and East Asian ancestry and discovered two genome-wide significant loci, in C1GALT1 (rs13226913, P = 3.2 x 10-11) and C1GALT1C1 (rs5910940, P = 2...
February 10, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28182057/idiopathic-erythrocytosis-in-iga-nephropathy
#15
E Mahesh, P R Madhyastha, M Kalashetty, K C Gurudev, S Bande, M M John
We report a case of idiopathic erythrocytosis in a 31-year-old male who was incidentally detected to have hypertension during his preemployment checkup. Urine routine showed proteinuria and hematuria. Biochemical parameters revealed raised serum creatinine, and histological findings of the renal biopsy showed IgAN.
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28173879/helicobacter-cinaedi-bacteremia-with-cellulitis-in-a-living-donor-kidney-transplant-recipient-identified-by-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-a-case-report
#16
Ai Katsuma, Izumi Yamamoto, Yukiko Tsuchiya, Mayuko Kawabe, Takafumi Yamakawa, Haruki Katsumata, Aki Mafune, Yasuyuki Nakada, Akimitsu Kobayashi, Kentaro Koike, Akihiro Shimizu, Yudo Tanno, Ichiro Ohkido, Nobuo Tsuboi, Seiji Hori, Hiroyasu Yamamoto, Takashi Yokoo
BACKGROUND: Helicobacter cinaedi causes bacteremia and cellulitis, mainly in immunocompromised patients. We report a rare case of H. cinaedi bacteremia with cellulitis in a living-donor kidney transplant recipient identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). A 54-year-old Asian man with IgA nephropathy underwent living-donor kidney transplantation 14 years previously. He was admitted to our hospital for evaluation of fever and multifocal cellulitis...
February 7, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28166191/decreased-serum-c3-levels-in-immunoglobulin-a-iga-nephropathy-with-chronic-kidney-disease-a-propensity-score-matching-study
#17
Xi Yang, Ri-Bao Wei, Yang Wang, Ting-Yu Su, Qing-Ping Li, Ting Yang, Meng-Jie Huang, Kun-Ying Li, Xiang-Mei Chen
BACKGROUND The effects of low serum C3 levels and the activation of the complement system on the development and the prognosis of IgAN are unclear. The present study aimed to determine whether decreased levels of complement C3 influence the prognosis of IgAN patients with chronic kidney disease. MATERIAL AND METHODS We enrolled a total of 1564 patients with primary IgAN diagnosed by renal biopsy at the Chinese PLA General Hospital from January 2011 to March 2015. The endpoint was end-stage renal disease (ESRD) or a doubling of the baseline serum creatinine (D-SCr) level...
February 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28161838/anticoagulant-related-nephropathy-a-case-report-and-review-of-the-literature-of-an-increasingly-recognized-entity
#18
REVIEW
Rigas G Kalaitzidis, Anila Duni, Georgios Liapis, Olga Balafa, Sofia Xiromeriti, Paulos Karolos Rapsomanikis, Moses S Elisaf
Treatment with oral anticoagulants has been associated with worsening kidney function in patients with chronic kidney disease (CKD) as well as among patients without underlying CKD. Thus, anticoagulant-related nephropathy (ARN) is an increasingly recognized entity nowadays, mainly associated with warfarin anticoagulation. Recent evidence indicates that patients treated with the direct anticoagulants may also be at risk of ARN. However, the true incidence of anticoagulant-related nephropathy is difficult to determine...
February 4, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28159829/iga-nephropathy
#19
Jennifer C Rodrigues, Mark Haas, Heather N Reich
IgA nephropathy (IgAN) is a leading cause of CKD and renal failure. Recent international collaborative efforts have led to important discoveries that have improved our understanding of some of the key steps involved in the immunopathogenesis of IgAN. Furthermore, establishment of multicenter networks has contributed to rigorous design and execution of clinical trials that have provided important insights regarding immunotherapy in IgAN. In this article, we review emerging developments in clinical and translational IgAN research and describe how these novel findings will influence future strategies to improve the outcome of patients with IgAN...
February 3, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28157068/clinical-and-pathological-characteristics-of-fabry-disease-combined-with-iga-nephropathy-in-chinese-patients%C3%A2
#20
Nannan Yang, Xia Wang, Feng Xu, Caihong Zeng, Jinquan Wang, Zhihong Liu
AIMS: To improve diagnosis and treatment, we characterized Fabry disease combined with IgA nephropathy and its response to treatment clinically and pathologically in Chinese patients. MATERIALS AND METHODS: Clinical and pathological characteristics of 6 Chinese patients with renal biopsy-proven Fabry disease combined with IgA nephropathy were retrospectively analyzed. RESULTS: There were 4 males and 2 females in this study. All of the 6 patients presented with proteinuria...
February 3, 2017: Clinical Nephrology
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