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"IgA nephropathy"

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https://www.readbyqxmd.com/read/28325866/temporal-and-demographic-trends-in-glomerular-disease-epidemiology-in-the-southeastern-united-states-1986-2015
#1
Michelle M O'Shaughnessy, Susan L Hogan, Caroline J Poulton, Ronald J Falk, Harsharan K Singh, Volker Nickeleit, J Charles Jennette
BACKGROUND AND OBJECTIVES: Large-scale, contemporary studies exploring glomerular disease epidemiology in the United States are lacking. We aimed to determine 30-year temporal and demographic trends in renal biopsy glomerular disease diagnosis frequencies in the southeastern United States. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In this cross-sectional, observational study, we identified all patients with a native kidney biopsy specimen showing one of 18 widely recognized glomerular disease diagnoses referred to the University of North Carolina Chapel Hill Division of Nephropathology between 1986 and 2015...
March 21, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28321326/first-canadian-case-report-of-kidney-transplantation-from-an-hiv-positive-donor-to-an-hiv-positive-recipient
#2
Georges Ambaraghassi, Héloïse Cardinal, Daniel Corsilli, Claude Fortin, Marie-Chantal Fortin, Valérie Martel-Laferrière, Jacques Malaise, Michel R Pâquet, Danielle Rouleau
RATIONALE: Kidney transplantation has become standard of care for carefully selected patients living with human immunodeficiency virus (HIV) and end-stage renal disease (ESRD) in the highly active antiretroviral therapy (HAART) era. American and European prospective cohort studies have reported similar patient and graft survival compared with HIV-negative kidney transplant recipients. Despite an increased rate of acute rejection, partially due to drug interactions, HIV immunovirologic parameter generally remains under control during immunosuppression...
2017: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/28320554/pregnancy-and-kidney-outcomes-in-patients-with-iga-nephropathy-a-cohort-study
#3
Xiaole Su, Jicheng Lv, Youxia Liu, Jinwei Wang, Xinxin Ma, Sufang Shi, Lijun Liu, Hong Zhang
BACKGROUND: The outcomes of pregnancy in immunoglobulin A nephropathy (IgAN) are controversial. This cohort study assessed the effects of pregnancy on kidney disease progression and risk factors for adverse pregnancy outcomes in patients with IgAN. STUDY DESIGN: A cohort study. SETTING & PARTICIPANTS: Women of child-bearing age with IgAN and minimum follow-up of 1 year after biopsy from December 2003 to September 2014. PREDICTORS: Pregnancy, treated as a time-dependent variable; baseline (at time of biopsy) estimated glomerular filtration rate (eGFR), proteinuria, blood pressure, and kidney pathology (Oxford MEST classification)...
March 17, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28314931/erratum-to-mesangial-c4d-deposition-may-predict-progression-of-kidney-disease-in-pediatric-patients-with-iga-nephropathy
#4
Rafaela Cabral Gonçalves Fabiano, Stanley de Almeida Araújo, Eduardo Alves Bambirra, Eduardo Araújo Oliveira, Ana Cristina Simões E Silva, Sérgio Veloso Brant Pinheiro
No abstract text is available yet for this article.
March 17, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28296731/clinical-outcomes-of-iga-nephropathy-patients-with-different-proportions-of-crescents
#5
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/28295247/targeting-c3a-c5a-receptors-inhibits-human-mesangial-cell-proliferation-and-alleviates-iga-nephropathy-in-mice
#6
Ying Zhang, Xianli Yan, Ting Zhao, Qihe Xu, Qi Peng, Ruimin Hu, Songxia Quan, Yali Zhou, Guolan Xing
Complement activation has a deep pathogenic influence in IgA nephropathy (IgAN). C3a and C5a, small cleavage fragments generated by complement activation, are key mediators of inflammation. The fragments exert broad pro-inflammatory effects by binding to specific receptors (C3aR and C5aR, respectively). However, no studies thus far have investigated the effects of C3a, C5a and their receptors on IgAN. We observed that C3aR and C5aR antagonists repressed IgA-induced cell proliferation and IL-6 and MCP-1 production in cultured human mesangial cells (HMCs)...
March 15, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28293726/inflammation-in-iga-nephropathy
#7
Thomas Rauen, Jürgen Floege
Immunoglobulin A nephropathy (IgAN) is the most frequently occurring primary glomerulonephritis in Caucasian and Asian populations. Nonetheless, therapeutic recommendations are based on weak evidence, large controlled trials are scarce and, in particular, the additional value of immunosuppression beyond comprehensive supportive measures is not well-established. The use of immunosuppressants is supported by experimental insights into IgAN pathogenesis that suggest an autoimmune component in disease development...
March 14, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28293466/cadasil-ultrastructural-insights-into-the-morphology-of-granular-osmiophilic-material
#8
Teresa Lorenzi, Michele Ragno, Francesca Paolinelli, Clara Castellucci, Marina Scarpelli, Manrico Morroni
INTRODUCTION: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary systemic vascular disorder. Granular osmiophilic material (GOM) is its ultrastructural marker. We reviewed tissue biopsies from CADASIL patients to establish whether ultrastructural observations help clarify the pathogenic mechanism of CADASIL. Given the resemblance of the GOM deposits to the immunoglobulin deposits seen in glomerulonephritis and focal segmental glomerulosclerosis (FSGS), their morphologies were investigated and compared...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28292274/significance-of-clinical-and-morphological-prognostic-risk-factors-in-iga-nephropathy-follow-up-study-of-comparison-patient-groups-with-and-without-renoprotection
#9
Živile Riispere, Anne Kuudeberg, Elviira Seppet, Kristin Sepp, Madis Ilmoja, Merike Luman, Külli Kõlvald, Asta Auerbach, Mai Ots-Rosenberg
BACKGROUND: IgA nephropathy (IgAN) is the most frequent glomerulonephritis in many countries including Estonia. There is no specific treatment for IgAN but renoprotection is indicated when proteinuria is >1 g/day. We aimed to assess the clinicopathological correlations of IgAN and to compare the follow-up outcome of the IgAN patients receiving renoprotection with the patients with other antihypertensive regimen treatments. METHODS: A retrospective kidney biopsy cohort study was carried out in consecutive 73 IgAN cases, using the new Oxford classification...
March 14, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28283858/combination-therapy-with-lamivudine-and-angiotensin-converting-enzyme-inhibitor-angiotensin-receptor-blocker-for-hepatitis-b-virus-associated-glomerulonephritis-with-mild-to-moderate-proteinuria-a-clinical-review-of-38-cases
#10
Li-Jing Sun, Jian-Ping Shan, Ruo-Lan Cui, Wei-Jie Yuan, Geng-Ru Jiang
PURPOSE: The treatment of HBV-associated glomerulonephritis (HBV-GN) is still a challenge in clinical practice now. The objective of this study was to report the pathological characteristics of HBV-GN presenting with mild to moderate proteinuria and to evaluate the therapeutic efficacy of lamivudine (LAM) in combination with angiotensin-converting enzyme inhibitor (ACEI)/angiotensin receptor blocker (ARB) as compared to ACEI/ARB monotherapy. METHODS: We conducted a retrospective observational study in HBV-GN patients between 2005 and 2014...
March 10, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28279626/maternal-foetal-outcomes-in-pregnant-women-with-glomerulonephritides-are-all-glomerulonephritides-alike-in-pregnancy
#11
Giorgina Barbara Piccoli, Rossella Attini, Gianfranca Cabiddu, Isabelle Kooij, Federica Fassio, Martina Gerbino, Stefania Maxia, Marilisa Biolcati, Elisabetta Versino, Tullia Todros
In spite of the interest for chronic renal diseases (CKD) in pregnancy data on specific diseases is fragmentary; while recent studies analysed the most common glomerulonephritides (GN), none was addressed at GN as a group. The aim of our study was to analyse the main pregnancy-related outcomes in GN patients in a large multicentre cohort. Patients with a diagnosis of GN were selected from the TOCOS cohort (TOCOS: TOrino Cagliari Observational Study): out of 714 singleton deliveries GN was the diagnosis in 126; lupus GN and IgA nephropathy accounted for 37 and 33 cases; 1418 low-risk singleton deliveries followed-up in the same Centers served as controls (non diabetic, non nephropathic, non obese women, without any other known chronic illness; pregnancies after ovodonation or in vitro fertilisation were excluded, if declared)...
March 6, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28273242/evaluation-of-tgf-%C3%AE-1-and-mcp-1-expression-and-tubulointerstitial-fibrosis-in-children-with-henoch-sch%C3%A3-nlein-purpura-nephritis-and-iga-nephropathy-a-clinical-correlation
#12
Zhao Shuiai, Shen Huijun, Gu Weizhong, Liu Aimin, Mao Jianhua
OBJECTIVES: Henoch-Schönlein purpura nephritis and immunoglobulin A nephropathy are two diseases with similar clinical presentations but very different prognoses. Transforming growth factor β1 and monocyte chemoattractant protein-1 have been associated with the development of tissue fibrosis. We examined the development of tubulointerstitial fibrosis and its relationship with Transforming growth factor β1 and monocyte chemoattractant protein-1 expression in these patients. METHODS: Renal tissue samples were collected by renal biopsy from 50 children with Henoch-Schönlein purpura nephritis and 50 children with immunoglobulin A nephropathy...
February 1, 2017: Clinics
https://www.readbyqxmd.com/read/28270699/fty720-attenuates-angiotensin-ii-induced-podocyte-damage-via-inhibiting-inflammatory-cytokines
#13
Ke Su, Ping Zeng, Wei Liang, Zhengyu Luo, Yiman Wang, Xifeng Lv, Qi Han, Miao Yan, Cheng Chen
FTY720, a new chemical substance derived from the ascomycete Isaria sinclairii, is used for treating multiple sclerosis, renal cancer, and asthma. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid metabolite and exists in red blood cells. FTY720 is a synthetic S1P analog which can block S1P evoking physiological effects. Recently studies show that S1P was participating in activated inflammation cells induced renal injury. The objective of this study was to assess the protective effect of FTY720 on kidney damage and the potential mechanism of FTY720 which alleviate podocyte injury in chronic kidney disease...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28266622/sorting-nexin-9-facilitates-podocin-endocytosis-in-the-injured-podocyte
#14
Yu Sasaki, Teruo Hidaka, Takashi Ueno, Miyuki Akiba-Takagi, Juan Alejandro Oliva Trejo, Takuto Seki, Yoshiko Nagai-Hosoe, Eriko Tanaka, Satoshi Horikoshi, Yasuhiko Tomino, Yusuke Suzuki, Katsuhiko Asanuma
The irreversibility of glomerulosclerotic changes depends on the degree of podocyte injury. We have previously demonstrated the endocytic translocation of podocin to the subcellular area in severely injured podocytes and found that this process is the primary disease trigger. Here we identified the protein sorting nexin 9 (SNX9) as a novel facilitator of podocin endocytosis in a yeast two-hybrid analysis. SNX9 is involved in clathrin-mediated endocytosis, actin rearrangement and vesicle transport regulation...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28260100/expression-profile-of-baff-in-peripheral-blood-from-patients-of-iga-nephropathy-correlation-with-clinical-features-and-streptococcus%C3%A2-pyogenes-infection
#15
Nuoyan Zheng, Jinjin Fan, Bing Wang, Dongxian Wang, Pinning Feng, Qiongqiong Yang, Xueqing Yu
B cells are critically important for the pathogenesis of IgA nephropathy (IgAN). The present study aimed to investigate the abundance of B cell activating factor (BAFF), which belongs to the tumor necrosis factor superfamily, in the peripheral blood of patients with IgAN. The different forms of BAFF in peripheral blood and its association with clinical features and immunological factors were analyzed. mRNA levels of BAFF and other associated genes in the peripheral blood mononuclear cells (PBMCs) of patients with IgAN and controls were analyzed by quantitative polymerase chain reaction...
February 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28255003/prognostic-value-of-serum-biomarkers-of-autoimmunity-for-recurrence-of-iga-nephropathy-after-kidney-transplantation
#16
Francois Berthoux, Hitoshi Suzuki, Hesham Mohey, Nicolas Maillard, Christophe Mariat, Jan Novak, Bruce A Julian
A prognostic biomarker for IgA nephropathy (IgAN) recurrence after renal transplant is lacking. We followed 96 consecutive first renal transplant recipients with native kidney IgAN (79 men; 92 deceased donors; mean age =48.1 years old) on calcineurin inhibitor-based immunosuppression over 10 years for death, allograft failure, and clinicopathologic recurrence (CPR; clinically evident and biopsy proven). Using time-dependent Cox regression analysis and receiver operating characteristic curves, we assessed prognostic significance of levels of galactose-deficient IgA1 (Gd-IgA1; autoantigen) and Gd-IgA1-specific IgG and IgA autoantibodies in serum obtained at time of transplant or native kidney IgAN diagnosis (30 patients only)...
March 2, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28244692/crescentic-iga-nephropathy-in-a-child-effect-of-a-new-combination-therapy
#17
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/28240316/p53-induces-mir199a-3p-to-suppress-socs7-for-stat3-activation-and-renal-fibrosis-in-uuo
#18
Ruhao Yang, Xuan Xu, Huiling Li, Jinwen Chen, Xudong Xiang, Zheng Dong, Dongshan Zhang
The role of p53 in renal fibrosis has recently been suggested, however, its function remains controversial and the underlying mechanism is unclear. Here, we show that pharmacological and genetic blockade of p53 attenuated renal interstitial fibrosis, apoptosis, and inflammation in mice with unilateral urethral obstruction (UUO). Interestingly, p53 blockade was associated with the suppression of miR-215-5p, miR-199a-5p&3p, and STAT3. In cultured human kidney tubular epithelial cells (HK-2), TGF-β1 treatment induced fibrotic changes, including collagen I and vimentin expression, being associated with p53 accumulation, p53 Ser15 phosphorylation, and miR-199a-3p expression...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28237991/rapamycin-enhances-repressed-autophagy-and-attenuates-aggressive-progression-in-a-rat-model-of-iga-nephropathy
#19
Di Liu, Yexin Liu, Guochun Chen, Liyu He, Chengyuan Tang, Chang Wang, Danyi Yang, Huiqiong Li, Zheng Dong, Hong Liu
BACKGROUND: IgA nephropathy (IgAN) has been considered to be the most frequent form of primary glomerulonephritis that occurs worldwide with a variety of factors involved in its occurrence and development. The impact of autophagy in IgAN, however, remains partially unclear. This study was designed to investigate the effects of rapamycin in an IgAN model. METHOD: After establishing an IgAN rat model, SD rats were divided into 4 groups: control, control + rapamycin, IgAN, IgAN + rapamycin...
February 25, 2017: American Journal of Nephrology
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...
February 17, 2017: Current Opinion in Nephrology and Hypertension
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