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IgA nephropathy

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https://www.readbyqxmd.com/read/29782630/iga-nephropathy-in-salvador-brazil-clinical-and-laboratory-presentation-at-diagnosis
#1
Brenda Navarro de Souza, Maria Brandão Tavares, Maria Fernanda Sanches Soares, Washington Luis Conrado Dos Santos
INTRODUCTION: IgA nephropathy (IgAN) is the most prevalent primary glomerulopathy in the world, but great variation is reported in different countries. In Brazil, the reported prevalence is high in the Southeastern States and low in Salvador, Bahia State, Brazil. OBJECTIVES: This study investigated the clinical and histological patterns of patients with IgAN in Salvador, Brazil. METHODS: This is a descriptive study that included all patients with a diagnosis of IgAN performed in native kidney biopsies collected from referral nephrology services of public hospitals in Salvador between 2010 and 2015...
May 17, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29778542/urinary-mitochondrial-dna-level-in-non-diabetic-chronic-kidney-diseases
#2
Pascal Zhongping Wei, Bonnie Ching-Ha Kwan, Kai Ming Chow, Phyllis Mei-Shan Cheng, Cathy Choi-Wan Luk, Ka-Bik Lai, Philip Kam- To Li, Cheuk Chun Szeto
BACKGROUND: Mitochondrial dysfunction plays an important role in the pathogenesis and progression of chronic kidney disease (CKD). We study the relation between urinary mitochondrial DNA (mtDNA) levels and renal dysfunction in non-diabetic CKD. METHODS: We recruited 32 CKD patients (20 had hypertensive nephrosclerosis, 12 had IgA nephropathy). Urinary supernatant mtDNA level was measured and compared to baseline clinical and pathological parameters. The patients were followed 57...
May 17, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29775444/-influence-of-intensity-localization-and-type-of-deposits-in-renal-biopsy-for-disease-symptoms-and-follow-up-in-children-with-iga-nephropathy
#3
Karolina Cichoń-Kawa, Małgorzata Mizerska-Wasiak, Jadwiga Małdyk, Agnieszka Turczyn, Agnieszka Rybi-Szumińska, Anna Wasilewska, Agnieszka Firszt-Adamczyk, Roman Stankiewicz, Beata Bieniaś, Przemysław Sikora, Katarzyna Gadomska-Prokop, Ryszard Grenda, Małgorzata Pańczyk-Tomaszewska
IgA nephropathy is the most common glomerulonephritis in the world. For diagnosis kidney biopsy is necessary. AIM: The aim of the study was assessment the significance of IgA, C3 and IgG deposits intensity and location in kidney childhood IgA nephropathy (IgAN) for the symptoms of the disease and the follow up. MATERIALS AND METHODS: Study population consisted of 81 children, average 11,45±3,99 years. IgAN was recognized based on renal biopsy, performed 1,2±1,84, median 0,5 years after the onset...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29769033/case-report-on-pathogenetic-link-between-gluten-and-iga-nephropathy
#4
Stefano Costa, Giovanni Currò, Salvatore Pellegrino, Maria Cristina Lucanto, Giovanni Tuccari, Antonio Ieni, Giuseppina Visalli, Giuseppe Magazzù, Domenico Santoro
BACKGROUND: A relationship between IgA nephropathy (IgAN) and celiac disease (CD) has been reported. We show the pathogenetic link for the first time. CASE PRESENTATION: A 39-year-old man with cystic fibrosis (CF) and CF-related diabetes started to present gross hematuria, back pain and headache. At admission, laboratory analysis showed increase in serum creatinine of 1.5 mg/dl, together with hematuria and mild proteinuria (1 g/24 h). He underwent a renal biopsy to investigate the cause of hematuria and renal failure...
May 16, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29763910/different-relevance-of-peripheral-central-or-nighttime-blood-pressure-measurements-in-the-prediction-of-chronic-kidney-disease-progression-in-patients-with-mild-or-no-proteinuria
#5
Piotr Kuczera, Katarzyna Kwiecień, Marcin Adamczak, Teresa Bączkowska, Jolanta Gozdowska, Katarzyna Madziarska, Hanna Augustyniak-Bartosik, Marian Klinger, Magdalena Durlik, Eberhard Ritz, Andrzej Wiecek
BACKGROUND/AIMS: Arterial hypertension is one of the leading factors aggravating the course of chronic kidney disease (CKD). It seems that the novel parameters used in the assessment of the blood pressure (BP) load (i.e. central blood pressure, nighttime blood pressure) may be more precise in predicting the cardiovascular risk and the progression of CKD in comparison with the traditional peripheral blood pressure measurements in the office conditions. The aim of the study was to assess the impact of the central, or nighttime blood pressure on the progression of CKD in patients with mild or no-proteinuria (autosomal, dominant polycystic kidney disease or IgA nephropathy)...
May 10, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29759419/circulating-complement-factor-h-related-protein-5-levels-contribute-to-development-and-progression-of-iga-nephropathy
#6
Li Zhu, Wei-Yi Guo, Su-Fang Shi, Li-Jun Liu, Ji-Cheng Lv, Nicholas R Medjeral-Thomas, Hannah J Lomax-Browne, Matthew C Pickering, Hong Zhang
IgA nephropathy (IgAN) is a disease associated with activation of the complement system. But the factors influencing complement activation in IgAN are not fully understood. Complement factor H (FH) is an essential negative regulator of complement C3 activation. Complement factor H-related protein (FHR)-5 shares high sequence similarity with factor H. However, unlike factor H, on binding to activated C3 it enables further activation to proceed. Previously, we reported the contribution of rare variants of the CFHR5 gene to IgAN susceptibility...
May 11, 2018: Kidney International
https://www.readbyqxmd.com/read/29748623/plasma-microrna-panel-is-a-novel-biomarker-for-focal-segmental-glomerulosclerosis-and-associated-with-podocyte-apoptosis
#7
Bin Xiao, Li-Na Wang, Wei Li, Li Gong, Ting Yu, Qian-Fei Zuo, Hong-Wen Zhao, Quan-Ming Zou
Focal segmental glomerulosclerosis (FSGS) is a frequent glomerular disease, and is the common cause of nephrotic syndrome. However, there is no validated diagnostic blood biomarker for FSGS. Here, we performed a real-time PCR-based high-throughput miRNA profiling to identify the plasma signature for FSGS. We found four miRNAs (miR-17, miR-451, miR-106a, and miR-19b) were significantly downregulated in the plasma of FSGS patients (n = 97) compared with healthy controls (n = 124) in the training, validation, and blinded-test phases...
May 10, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29746558/anti-citrullinated-protein-antibody-response-after-primary-ebv-infection-in-kidney-transplant-patients
#8
Lianne J N Kraal, Marieke L Nijland, Kristine L Germar, Dominique L P Baeten, Ineke J M Ten Berge, Cynthia M Fehres
Rheumatoid arthritis (RA) is a chronic inflammatory disease of synovial joints, characterized by the presence of the highly disease-specific anti-citrullinated protein antibodies (ACPA) in approximately 70% of patients. Epstein-Barr virus (EBV) has previously been suggested to be involved in the pathophysiology of RA. However, given the high incidence of EBV in the general population and the difficulty of detecting initial infection, providing a direct link between EBV infection and RA development has remained elusive...
2018: PloS One
https://www.readbyqxmd.com/read/29743598/development-and-assessment-of-a-predictive-nomogram-for-the-progression-of-iga-nephropathy
#9
Lin-Lin Liu, Lin-Bo Zhu, Jian-Nan Zheng, Tong-Dan Bi, Jian-Fei Ma, Li-Ning Wang, Li Yao
The present study is to establish a nomogram for predicting the prognosis of IgA nephropathy (IgAN). Of the 869 IgAN patients, four-fifths were randomly assigned to the development cohort and one-fifth to the validation cohort. The primary outcome was a composite event of either a ≥ 50% reduction in estimated glomerular filtration rate (eGFR), end-stage renal disease or death. The mean follow-up time was 44 months. The Cox regression model identified urinary protein excretion (1-3.5 g/d, HR 11.639, 95% CI 3...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29740706/biomarkers-for-iga-nephropathy-on-the-basis-of-multi-hit-pathogenesis
#10
REVIEW
Hitoshi Suzuki
IgA nephropathy (IgAN) is the most prevalent glomerular disease worldwide and is associated with a poor prognosis. Development of curative treatment strategies and approaches for early diagnosis is necessary. Renal biopsy is the gold standard for the diagnosis and assessment of disease activity. However, reliable biomarkers are needed for the noninvasive diagnosis of this disease and to more fully delineate the risk of progression. With regard to the pathogenesis of IgAN, the multi-hit hypothesis, including production of galactose-deficient IgA1 (Gd-IgA1; Hit 1), IgG or IgA autoantibodies that recognize Gd-IgA1 (Hit 2), and their subsequent immune complexes formation (Hit 3) and glomerular deposition (Hit 4), has been widely supported by many studies...
May 8, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29740313/epigenome-wide-association-study-of-soluble-tumor-necrosis-factor-receptor-2-levels-in-the-framingham-heart-study
#11
Michael M Mendelson, Roby Johannes, Chunyu Liu, Tianxiao Huan, Chen Yao, Xiao Miao, Joanne M Murabito, Josée Dupuis, Daniel Levy, Emelia J Benjamin, Honghuang Lin
Background: Transmembrane tumor necrosis factor (TNF) receptors are involved in inflammatory, apoptotic, and proliferative processes. In the bloodstream, soluble TNF receptor II (sTNFR2) can modify the inflammatory response of immune cells and is predictive of cardiovascular disease risk. We hypothesize that sTNFR2 is associated with epigenetic modifications of circulating leukocytes, which may relate to the pathophysiology underlying atherogenic risk. Methods: We conducted an epigenome-wide association study of sTNFR2 levels in the Framingham Heart Study Offspring cohort (examination 8; 2005-2008)...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29731057/clinical-outcomes-of-kidney-transplantation-in-patients-with-biopsy-proven-glomerulonephritis
#12
H Park, W Y Park, S S Kang, S M Yeo, S Han, S B Park, K Jin
BACKGROUND: The clinical outcomes after kidney transplantation (KT) according to the types of glomerulonephritis (GN) as the cause of end-stage renal disease (ESRD) are various, but there are not many studies on this. METHODS: Among 1,253 patients who had KT between November 1982 and January 2017, 183 recipients with biopsy-proven GN as the primary cause of ESRD were enrolled. We analyzed the incidence of recurrent GN and the factors associated with recurrence and graft and patient survivals...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29725648/nephcure-accelerating-cures-institute-a-multidisciplinary-consortium-to-improve-care-for-nephrotic-syndrome
#13
Debbie S Gipson, David T Selewski, Susan F Massengill, Mary Margaret Modes, Hailey Desmond, Lauren Lee, Elaine Kamil, Matthew R Elliott, Sharon G Adler, Gia Oh, Richard A Lafayette, Patrick E Gipson, Aditi Sinha, Arvind Bagga, Anne Pesenson, Cheryl Courtlandt, Cathie Spino, Richard Eikstadt, Renée Pitter, Samara Attalla, Anne Waldo, Richard Winneker, Noelle E Carlozzi, Jonathan P Troost, Irving Smokler, Mark Stone
Introduction: NephCure Accelerating Cures Institute (NACI) is a collaborative organization sponsored by NephCure Kidney International and the University of Michigan. The Institute is composed of 7 cores designed to improve treatment options and outcomes for patients with glomerular disease: Clinical Trials Network, Data Warehouse, Patient-Reported Outcomes (PRO) and Endpoints Consortium, Clinical Trials Consulting Team, Quality Initiatives, Education and Engagement, and Data Coordinating Center...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29725647/progressive-iga-nephropathy-is-associated-with-low-circulating-mannan-binding-lectin-associated-serine-protease-3-masp-3-and-increased-glomerular-factor-h-related-protein-5-fhr5-deposition
#14
Nicholas R Medjeral-Thomas, Anne Troldborg, Nicholas Constantinou, Hannah J Lomax-Browne, Annette G Hansen, Michelle Willicombe, Charles D Pusey, H Terence Cook, Steffen Thiel, Matthew C Pickering
Introduction: IgA nephropathy (IgAN) is characterized by glomerular deposition of galactose-deficient IgA1 and complement proteins and leads to renal impairment. Complement deposition through the alternative and lectin activation pathways is associated with renal injury. Methods: To elucidate the contribution of the lectin pathway to IgAN, we measured the 11 plasma lectin pathway components in a well-characterized cohort of patients with IgAN. Results: M-ficolin, L-ficolin, mannan-binding lectin (MBL)-associated serine protease (MASP)-1 and MBL-associated protein (MAp) 19 were increased, whereas plasma MASP-3 levels were decreased in patients with IgAN compared with healthy controls...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29724226/a-validation-study-of-crescents-in-predicting-esrd-in-patients-with-iga-nephropathy
#15
Xiaoyan Zhang, Sufang Shi, Yan Ouyang, Meng Yang, Manman Shi, Xiaoxia Pan, Jicheng Lv, Zhaohui Wang, Hong Ren, Pingyan Shen, Weiming Wang, Hong Zhang, Jingyuan Xie, Nan Chen
BACKGROUND: A working group on the Oxford classification of IgA nephropathy (IgAN) recently reported that crescents detected in kidney tissue predicted a worse renal outcome. However, this finding must be validated in independent cohorts before it can be widely applied to clinical practice. METHODS: Biopsy-proven IgAN patients were continuously recruited from two large renal centers in China from 1989 to 2014. All patients were followed for more than 1 year unless end stage renal disease (ESRD) occurred within 12 months...
May 3, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29719341/renal-cell-carcinoma-in-renal-allograft-case-series-and-review-of-literature
#16
Gaurav Vasisth, Anil Kapoor, Kevin Piercey, Shahid Lambe
Renal cell carcinoma (RCC) in transplanted kidneys has been reported sporadically with incidence of about 0.5%. There are currently no standard guidelines on the management of allograft RCC in renal transplant recipients. Our objective was to study effectiveness of nephron-sparing surgery (NSS) for allograft RCC. We performed a retrospective analysis of patients with RCC in renal allografts managed with NSS in our institution from January 2000 to December 2015. Patient demographics, interval between transplant and RCC diagnosis, operative parameters, perioperative complications, final pathology, and renal function were evaluated...
April 2018: Urology Annals
https://www.readbyqxmd.com/read/29718866/tacrolimus-decreases-proteinuria-in-patients-with-refractory-iga-nephropathy
#17
Tingyang Hu, Qingquan Liu, Qing Xu, Hui Liu, Wenhui Qiu, Fei Huang, Shijie Zhang, Yongman Lv
In clinical practice, some IgA nephropathy (IgAN) patients show resistance to or are unable to achieve complete remission using steroids and/or immunosuppressants. The current study aimed to assess the efficacy and safety of tacrolimus in the treatment of cases of refractory IgAN.In this retrospective observational study, 34 primary IgAN patients with refractory proteinuria received tacrolimus for at least 12 months. Complete remission, partial remission, and other clinical data were measured at 1, 3, 6, and 12 months after the initiation of treatment...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29718591/glomerular-crescents-are-associated-with-worse-graft-outcome-in-allograft-iga-nephropathy
#18
Sehoon Park, Chung Hee Baek, Hyunjeong Cho, Mi-Yeon Yu, Yong Chul Kim, Heounjeong Go, Young Hoon Kim, Jung Pyo Lee, Sang Il Min, Jongwon Ha, Kyung Chul Moon, Yon Su Kim, Curie Ahn, Su-Kil Park, Hajeong Lee
The prognosis of patients with allograft IgA nephropathy (IgAN) requires further investigation. We performed a bi-center retrospective cohort study on kidney transplant recipients diagnosed with IgAN in allograft biopsy. Recipients without allograft IgAN but with known IgAN before transplantation were included as the control group. We investigated the associations between clinicopathological characteristics, including allograft crescents, and the risk of death-censored graft failure. In total, 1,256 IgAN patients in both pre- and post-transplant stages were included...
May 2, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29717935/expression-of-soluble-epoxide-hydrolase-in-renal-tubular-epithelial-cells-regulates-macrophage-infiltration-and-polarization-in-iga-nephropathy
#19
Qian Wang, Yan Liang, Yingjin Qiao, Xiangya Zhao, Yi Yang, Shengnan Yang, Bing Li, Qianru Zhao, Ling Dong, Songxia Quan, Rui Tian, Zhangsuo Liu
Tubulointerstitial inflammatory cell infiltration and activation contribute to kidney inflammation and fibrosis. Epoxyeicosatrienoic acids (EETs), which are rapidly metabolized to dihydroxyeicosatrienoic acids by the soluble epoxide hydrolase (sEH), have multiple biological functions, including vasodilation, anti-inflammatory action, and others. Inhibition of sEH has been demonstrated to attenuate inflammation in many renal disease models. However, the relationship between sEH expression and macrophage polarization in kidney remains unknown...
May 2, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29708439/acteoside-relieves-mesangial-cell-injury-by-regulating-th22-cell-chemotaxis-and-proliferation-in-iga-nephropathy
#20
Lu Gan, Xiaozhao Li, Mengyuan Zhu, Chen Chen, Huimin Luo, Qiaoling Zhou
The existing therapies of IgA nephropathy are unsatisfying. Acteoside, the main component of Rehmannia glutinosa with anti-inflammatory and anti-immune effects, can improve urinary protein excretion and immune disorder. Th22 cell is involved in IgA nephropathy progression. This study was determined to explore the effect of acteoside on mesangial injury underlying Th22 cell disorder in IgA nephropathy. Serum Th22 cells and urine total protein of patients with IgA nephropathy were measured before and after six months treatment of Rehmannia glutinosa acteoside or valsartan...
November 2018: Renal Failure
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