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glomerulopathies,kidney disease

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https://www.readbyqxmd.com/read/27913625/absence-of-mir-146a-in-podocytes-increases-risk-of-diabetic-glomerulopathy-via-upregulation-of-erbb4-and-notch-1
#1
Ha Won Lee, Samia Q Khan, Shehryar Khaliqdina, Mehmet M Altintas, Florian Grahammer, Jimmy L Zhao, Kwihey Koh, Nicholas J Tardi, Mohd Hafeez Faridi, Terese Geraghty, David J Cimbaluk, Katalin Susztak, Luis F Moita, David Baltimore, Pierre-Louis Tharaux, Tobias B Huber, Matthias Kretzler, Markus Bitzer, Jochen Reiser, Vineet Gupta
Podocyte injury is an early event in diabetic kidney disease and is a hallmark of glomerulopathy. MicroRNA-146a (miR-146a) is highly expressed in many cell types under homeostatic conditions, and plays an important anti-inflammatory role in myeloid cells. However, its role in podocytes is unclear. Here, we show that miR-146a expression levels decrease in the glomeruli of patients with type 2 diabetes (T2D), which correlates with increased albuminuria and glomerular damage. MiR-146a levels are also significantly reduced in the glomeruli of albuminuric BTBR ob/ob mice, indicating its significant role in maintaining podocyte health...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27884116/kidney-disease-in-the-elderly-biopsy-based-data-from-14-renal-centers-in-poland
#2
Agnieszka Perkowska-Ptasinska, Dominika Deborska-Materkowska, Artur Bartczak, Tomasz Stompor, Tomasz Liberek, Barbara Bullo-Piontecka, Anna Wasinska, Agnieszka Serwacka, Marian Klinger, Jolanta Chyl, Michal Kuriga, Robert Malecki, Krzysztof Marczewski, Bogdan Hryniewicz, Tadeusz Gregorczyk, Monika Wieliczko, Stanislaw Niemczyk, Olga Rostkowska, Leszek Paczek, Magdalena Durlik
BACKGROUND: Longer life expectancy is associated with an increasing prevalence of kidney disease. Aging itself may cause renal damage, but the spectrum of kidney disorders that affect elderly patients is diverse. Few studies, mostly form US, Asia and West Europe found differences in the prevalence of some types of kidney diseases between elderly and younger patients based on renal biopsy findings, with varied proportion between glomerulopathies and arterionephrosclerosis as a dominant injury found...
November 25, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27858997/a-novel-assay-to-assess-the-effect-of-pharmaceutical-compounds-on-the-differentiation-of-podocytes
#3
Frances Kindt, Elke Hammer, Stefan Kemnitz, Antje Blumenthal, Paul Klemm, Rabea Schlüter, Susan E Quaggin, Jens van den Brandt, Georg Fuellen, Uwe Völker, Karlhans Endlich, Nicole Endlich
BACKGROUND AND PURPOSE: Therapeutic options to treat glomerulopathies, the main cause of chronic kidney disease, are limited. Podocyte dedifferentiation is a major event in the pathogenesis of glomerulopathies. The goal of the present study was therefore to develop an assay to monitor podocyte differentiation suited for compound screening. EXPERIMENTAL APPROACH: We isolated and cultured glomeruli from transgenic mice, expressing cyan fluorescent protein (CFP) under control of the promoter of nephrin, a marker of podocyte differentiation...
November 14, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27796697/characteristics-of-patients-diagnosed-with-renal-vein-thrombosis-and-glomerulopathy-a-case-series
#4
Oliver Ross, Andrew Pourmoussa, Michael Batech, John J Sim
BACKGROUND: Few contemporary studies have evaluated the clinical characteristics of patients with biopsy-proven glomerulopathy diagnosed with renal vein thrombosis (RVT). METHODS: Retrospective case series study within an integrated health system in a 12-year period (January 1, 2000 through December 31, 2011) investigating clinical characteristics of all adult patients who underwent native or transplant kidney biopsy and also had a diagnosis of RVT. Patient characteristics, diagnostic studies, and outcomes were evaluated...
October 28, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27766813/familial-lecithin-cholesterol-acyl-transferase-deficiency-with-chronic-kidney-disease
#5
N Gopalakrishnan, R Arul, J Dhanapriya, T Dinesh Kumar, R Sakthirajan, T Balasubramaniyan
Familial lecithin-cholesterol acyltransferase (LCAT) deficiency is a rare autosomal recessive (AR) disease caused by mutation in the LCAT gene. LCAT enzyme esterifies cholesterol molecules in high-density lipoprotein(HDL) and low density-lipoprotein (LDL) particles. This enzyme deficiency is characterised by progressive corneal opacification, glomerulopathy, mild - moderate haemolytic anaemia and very low plasma levels of HDL. We here report a 34 year-old lady who presented with hypertension, nephrotic proteinuria, renal failure, corneal ring opacities, anemia and dyslipidemia...
October 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27764139/prevalence-of-glomerulopathies-in-canine-mammary-carcinoma
#6
Leandro Z Crivellenti, Gyl E B Silva, Sofia Borin-Crivellenti, Rachel Cianciolo, Christopher A Adin, Márcio Dantas, Denner S Dos Anjos, Mirela Tinucci-Costa, Aureo E Santana
The incidence and prevalence of paraneoplastic glomerulopathy, especially associated with carcinoma, are a matter of debate and the causal link between cancer and glomerular diseases remains unclear. The aim of this study was to evaluate renal biopsies of selected bitches with spontaneous mammary gland carcinoma. We hypothesized that dogs with mammary carcinomas would show histologic evidence of glomerular pathology. A prospective study was performed in dogs with naturally occurring mammary carcinoma that were undergoing tumor resection and ovariohysterectomy...
2016: PloS One
https://www.readbyqxmd.com/read/27753815/ssa-05-2-hypertension-and-kidney-complication-in-africa
#7
Solomon Kadiri
Hypertension prevalence rates in most urbanized areas of Africa range from 20-30%, with a recent systematic review reporting 16.2% for sub-Saharan Africa. These rates are lower than those in the West but the age standardized rates are higher than in other regions of the world. The attendant morbidity and mortality are disproportionately high. For example, failure of nocturnal dipping and microalbuminuria, predictive of vascular disease, occur relatively early in the course of hypertension and predispose to early vascular disease...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27742195/mitochondrial-dysfunction-in-obesity-related-kidney-disease-a-novel-therapeutic-target
#8
Chengyuan Tang, Juan Cai, Zheng Dong
Lipid accumulation in renal cells has been implicated in the pathogenesis of obesity-related kidney disease, but the underlying mechanism is poorly understood. Szeto et al. now unravel a central role of mitochondrial dysfunction in a high fat diet-induced glomerulopathy and proximal tubular injury. Moreover, they demonstrate the renoprotective effect of SS31, a mitochondria-targeted antioxidant, in related models. Targeting mitochondria may offer a novel strategy for the therapy of obesity-related kidney disease...
November 2016: Kidney International
https://www.readbyqxmd.com/read/27738229/chronic-interstitial-nephritis-in-agricultural-communities-a-worldwide-epidemic-with-social-occupational-and-environmental-determinants
#9
Channa Jayasumana, Carlos Orantes, Raul Herrera, Miguel Almaguer, Laura Lopez, Luis Carlos Silva, Pedro Ordunez, Sisira Siribaddana, Sarath Gunatilake, Marc E De Broe
Increase in the prevalence of chronic kidney disease (CKD) is observed in Central America, Sri Lanka and other tropical countries. It is named chronic interstitial nephritis in agricultural communities (CINAC). CINAC is defined as a form of CKD that affects mainly young men, occasionally women. Its aetiology is not linked to diabetes, hypertension, glomerulopathies or other known causes. CINAC patients live and work in poor agricultural communities located in CINAC endemic areas with a hot tropical climate, and are exposed to toxic agrochemicals through work, by ingestion of contaminated food and water, or by inhalation...
October 13, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27733175/increased-urinary-cd80-excretion-and-podocyturia-in-fabry-disease
#10
H Trimarchi, R Canzonieri, A Schiel, C Costales-Collaguazo, J Politei, A Stern, M Paulero, T Rengel, J Andrews, M Forrester, M Lombi, V Pomeranz, R Iriarte, A Muryan, E Zotta, M D Sanchez-Niño, A Ortiz
BACKGROUND: Certain glomerulopathies are associated with increased levels of CD80 (B7-1). We measured the urinary excretion of CD80, podocyturia and proteinuria in controls and in subjects with Fabry disease either untreated or on enzyme replacement therapy (ERT). METHODS: Cross-sectional study including 65 individuals: controls (n = 20) and Fabry patients (n = 45, 23 of them not on ERT and 22 on ERT). Variables included age, gender, urinary protein/creatinine ratio (UPCR), estimated glomerular filtration rate (eGFR), urinary uCD80/creatinine ratio (uCD80) and podocyturia...
October 13, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27707584/epithelial-mesenchymal-transition-in-pediatric-nephropathies
#11
Laura Penna Rocha, Samuel Cavalcante Xavier, Fernanda Rodrigues Helmo, Juliana Reis Machado, Fernando Silva Ramalho, Marlene Antônia Dos Reis, Rosana Rosa Miranda Corrêa
INTRODUCTION: Epithelial-mesenchymal transition (EMT) is a process in which epithelial cells may express mesenchymal cell markers with subsequent change in their functions, and it may be part of the etiopathogenesis of kidney disease. OBJECTIVE: The aim of this study was to evaluate the immunexpression of some EMT inducers and markers in frequent nephropathies in pediatric patients. METHODS: 59 patients aged 2-18 years old were selected and divided into 6 groups of frequent nephropathies in children and adolescents, as well as one control group...
December 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27691976/nephropathies-in-the-european-captive-cheetah-acinonyx-jubatus-population
#12
Angelika Url, Verena Krutak, Anna Kübber-Heiss, Sonja Chvala-Mannsberger, Nadia Robert, Nora Dinhopl, Peter Schmidt, Chris Walzer
According to previous studies in captive cheetah ( Acinonyx jubatus ) populations, one of the most threatening diseases besides amyloidosis, myelopathy, veno occlusive disease, and gastritis, is renal failure. Contrary to captive cheetahs in North America and South Africa, morphological data concerning renal lesions in the cheetah European Endangered Species Program (EEP) are lacking. This study details the histological characterization as well as immunohistochemical and morphometrical analysis of nephropathies in 35 captive cheetahs from the EEP, which were necropsied between 1985 and 2003...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/27682967/idiopathic-nephrotic-syndrome-the-ebv-hypothesis
#13
REVIEW
Claire Dossier, Agnès Jamin, Georges Deschênes
Steroid sensitive nephrotic syndrome is marked by a massive proteinuria and loss of podocytes foot processes. The mechanism of the disease remains debated but recent publications suggest a primary role of Epstein-Barr Virus (EBV). EBV replication in the peripheral blood is found in 50% of patients during the first flare of the disease. The genetic locus of steroid sensitive nephrotic syndrome was also identified as influencing antibodies directed against EBNA1. EBV is able to establish, latent benign infection in memory B cells that display phenotypes similar to antigen-selected memory B cells...
November 9, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27677082/podocyte-and-parietal-epithelial-cell-interactions-in-health-and-disease
#14
Turki Al Hussain, Hadeel Al Mana, Maged H Hussein, Mohammed Akhtar
The glomerulus has 3 resident cells namely mesangial cells that produce the mesangial matrix, endothelial cells that line the glomerular capillaries, and podocytes that cover the outer surface of the glomerular basement membrane. Parietal epithelial cells (PrECs), which line the Bowman's capsule are not part of the glomerular tuft but may have an important role in the normal function of the glomerulus. A significant progress has been made in recent years regarding our understanding of the role and function of these cells in normal kidney and in kidneys with various types of glomerulopathy...
September 26, 2016: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/27649757/relationship-of-clusterin-with-renal-inflammation-and-fibrosis-after-the-recovery-phase-of-ischemia-reperfusion-injury
#15
Jia Guo, Qiunong Guan, Xiuheng Liu, Hao Wang, Martin E Gleave, Christopher Y C Nguan, Caigan Du
BACKGROUND: Long-term outcomes after acute kidney injury (AKI) include incremental loss of function and progression towards chronic kidney disease (CKD); however, the pathogenesis of AKI to CKD remains largely unknown. Clusterin (CLU) is a chaperone-like protein that reduces ischemia-reperfusion injury (IRI) and enhances tissue repair after IRI in the kidney. This study investigated the role of CLU in the transition of IRI to renal fibrosis. METHODS: IRI was induced in the left kidneys of wild type (WT) C57BL/6J (B6) versus CLU knockout (KO) B6 mice by clamping the renal pedicles for 28 min at the body temperature of 32 °C...
2016: BMC Nephrology
https://www.readbyqxmd.com/read/27643378/ssa-05-2-hypertension-and-kidney-complication-in-africa
#16
Solomon Kadiri
Hypertension prevalence rates in most urbanized areas of Africa range from 20-30%, with a recent systematic review reporting 16.2% for sub-Saharan Africa. These rates are lower than those in the West but the age standardized rates are higher than in other regions of the world. The attendant morbidity and mortality are disproportionately high. For example, failure of nocturnal dipping and microalbuminuria, predictive of vascular disease, occur relatively early in the course of hypertension and predispose to early vascular disease...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27605054/peritubular-capillary-basement-membrane-multilayering-in-early-and-advanced-transplant-glomerulopathy-quantitative-parameters-and-diagnostic-aspects
#17
Deján Dobi, Zsolt Bodó, Éva Kemény, László Bidiga, Zoltán Hódi, Pál Szenohradszky, Edit Szederkényi, Anikó Szilvási, Béla Iványi
The ultrastructural quantitative aspects of peritubular capillary basement membrane multilayering (PTCBML) were examined in 57 kidney transplant biopsies with transplant glomerulopathy (TG). The measurements included three cutoffs [permissive: 1 PTC with 5 basement membrane (BM) layers, intermediate: 3 PTCs with 5 layers or 1 PTC with 7 layers, strict: 1 PTC with 7 layers and 2 PTCs with 5 layers] and the mean number of BM layers (PTCcirc). Two groups were assigned, namely patients with mild TG (Banff cg1a and cg1b) and those with moderate-to-severe TG (cg2 and cg3)...
September 7, 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27536691/averting-the-legacy-of-kidney-disease-focus-on-childhood
#18
Julie R Ingelfinger, Kamyar Kalantar-Zadeh, Franz Schaefer
World Kidney Day 2016 focuses on kidney disease in childhood and the antecedents of adult kidney disease that can begin in earliest childhood. Chronic kidney disease (CKD) in childhood differs from that in adults, as the largest diagnostic group among children includes congenital anomalies and inherited disorders, with glomerulopathies and kidney disease in the setting of diabetes being relatively uncommon. In addition, many children with acute kidney injury will ultimately develop sequelae that may lead to hypertension and CKD in later childhood or in adult life...
April 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27526707/paraprotein-related-kidney-disease-kidney-injury-from-paraproteins-what-determines-the-site-of-injury
#19
Mona Doshi, Amit Lahoti, Farhad R Danesh, Vecihi Batuman, Paul W Sanders
Disorders of plasma and B cells leading to paraproteinemias are associated with a variety of renal diseases. Understanding the mechanisms of injury and associated nephropathies provides a framework that aids clinicians in prompt diagnosis and appropriate adjunctive treatment of these disorders. Glomerular diseases that may be associated with paraproteinemias include amyloid deposition, monoclonal Ig deposition disease, proliferative GN with monoclonal Ig deposits, C3 glomerulopathy caused by alterations in the complement pathway, immunotactoid glomerulopathy, fibrillary GN, and cryoglobulinemia...
August 15, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27526706/paraprotein-related-kidney-disease-glomerular-diseases-associated-with-paraproteinemias
#20
Shveta S Motwani, Leal Herlitz, Divya Monga, Kenar D Jhaveri, Albert Q Lam
Paraproteins are monoclonal Igs that accumulate in blood as a result of abnormal excess production. These circulating proteins cause a diversity of kidney disorders that are increasingly being comanaged by nephrologists. In this review, we discuss paraprotein-related diseases that affect the glomerulus. We provide a broad overview of diseases characterized by nonorganized deposits, such as monoclonal Ig deposition disease (MIDD), proliferative GN with monoclonal Ig deposits (PGNMID), and C3 glomerulopathy, as well as those characterized by organized deposits, such as amyloidosis, immunotactoid glomerulopathy, fibrillary GN, and cryoglobulinemic GN, and rarer disorders, such as monoclonal crystalline glomerulopathies, paraprotein-related thrombotic microangiopathies, and membranous-like glomerulopathy with masked IgGκ deposits...
August 15, 2016: Clinical Journal of the American Society of Nephrology: CJASN
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