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Nephrotic syndrome biomarker

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https://www.readbyqxmd.com/read/28314744/randomised-controlled-trial-comparing-ofatumumab-to-rituximab-in-children-with-steroid-dependent-and-calcineurin-inhibitor-dependent-idiopathic-nephrotic-syndrome-study-protocol
#1
Pietro Ravani, Alice Bonanni, Gian Marco Ghiggeri
INTRODUCTION: Oral steroids induce remission in about 90% of children with idiopathic nephrotic syndrome (INS), which is characterised by severe proteinuria and hypoalbuminaemia. Some children become steroid-dependent (SD) and require addition of calcineurin inhibitors (CNI) to maintain remission. Since these oral agents are toxic, alternative interventions are needed for long-term treatment. The anti-CD20 antibody rituximab has shown promising steroid-sparing properties in clinical trials, but benefits are less convincing in complicated forms of SD-INS...
March 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28164557/the-detection-of-urinary-podocytes-from-drug-induced-glomerular-thrombotic-microangiopathy-in-advanced-cancer-patients
#2
Joichi Usui, Chie Yokoyama, Masahiro Hagiwara, Kai Hirayasu, Takahiro Kojima, Takayuki Yoshino, Hiroyuki Nishiyama, Masanori Hara, Kunihiro Yamagata
BACKGROUND: Focusing on glomerular thrombotic microangiopathy (TMA), we detected urinary podocytes to evaluate podocyte damage following glomerular endothelial cell injury. METHODS: We analyzed the relationship between urinary podocytes as biomarkers for podocyte injuries and clinical manifestations in five patients of anti-cancer-drug-induced glomerular TMA. RESULTS: Cancer in all five patients was advanced, including 4 cases of renal cell carcinoma treated with tyrosine kinase inhibitor, and one with intrahepatic bile duct carcinoma treated with gemcitabine...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28158993/comparative-differential-proteomic-analysis-of-minimal-change-disease-and-focal-segmental-glomerulosclerosis
#3
Vanessa Pérez, Dolores López, Ester Boixadera, Meritxell Ibernón, Anna Espinal, Josep Bonet, Ramón Romero
BACKGROUND: Minimal change disease (MCD) and primary focal segmental glomerulosclerosis (FSGS) are glomerular diseases characterized by nephrotic syndrome. Their diagnosis requires a renal biopsy, but it is an invasive procedure with potential complications. In a small biopsy sample, where only normal glomeruli are observed, FSGS cannot be differentiated from MCD. The correct diagnosis is crucial to an effective treatment, as MCD is normally responsive to steroid therapy, whereas FSGS is usually resistant...
February 3, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/27989937/unearthing-bulgakov-s-trace-proteome-from-the-master-i-margarita-manuscript
#4
Gleb Zilberstein, Uriel Maor, Emmanuil Baskin, Alfonsina D'Amato, Pier Giorgio Righetti
Ten pages, selected from a total of 127, of the last manuscript of Master i Margarita, written by Bulgakov in the last four years of his life, have been analysed in order to harvest and identify any trace proteome left on the margin by the novelist, in the hope of finding biomarkers of his fatal nephrotic syndrome. To that aim, we prepared a special ethyl-vinyl acetate film as binder of ground AG 501 Bio-Rad mix-bed strong cation/strong anion exchange resins for adsorbing any protein left on the margins of the pages via saliva and/or sweat...
January 30, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/27931031/round-table-discussion
#5
Susan Winter, Neil R M Buist, Nicola Longo, Saro H Armenian, Gary Lopaschuk, Anna Wasilewska
The 1st International Carnitine Working Group concluded with a round table discussion addressing several areas of relevance. These included the design of future studies that could increase the amount of evidence-based data about the role of carnitine in the treatment of fatty acid oxidation defects, for which substantial controversy still exists. There was general consensus that future trials on the effect of carnitine in disorders of fatty acid oxidation should be randomized, double-blinded, multicentered and minimally include the following diagnoses: medium-chain acyl coenzyme A (CoA) dehydrogenase deficiency, very long-chain acyl-CoA dehydrogenase deficiency, long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency and mitochondrial trifunctional protein deficiency...
2016: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/27890680/the-putative-role-of-maldi-msi-in-the-study-of-membranous-nephropathy
#6
Andrew Smith, Vincenzo L'Imperio, Elena Ajello, Franco Ferrario, Niccolò Mosele, Martina Stella, Manuel Galli, Clizia Chinello, Federico Pieruzzi, Goce Spasovski, Fabio Pagni, Fulvio Magni
Membranous Nephropathy (MN) is an immunocomplex mediated renal disease that represents one of the most frequent glomerulopathies worldwide. This glomerular disease can manifest as primary (idiopathic) or secondary and this distinction is crucial when choosing the most appropriate course of treatment. In secondary cases, the best strategy involves treating the underlying disease, whereas in primary forms, the identification of confirmatory markers of the idiopathic etiology underlining the process is requested by clinicians...
November 24, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27861367/impact-of-acute-kidney-injury-on-coagulation-in-adult-minimal-change-nephropathy
#7
Meng-Jie Huang, Ri-Bao Wei, Ting-Yu Su, Yang Wang, Qing-Ping Li, Xi Yang, Xiao-Meng Lv, Xiang-Mei Chen
A hypercoagulable state exists in patients with nephrotic syndrome (NS), which more easily leads to venous thromboembolism (VTE). However, whether acute kidney injury (AKI), a common complication of NS, affects the hypercoagulable state and VTE has rarely been elucidated. In this study, we aimed to explore coagulation changes and analyze relevant influencing factors in NS-AKI patients.A total of 269 consecutive NS patients with minimal change disease (MCD) between 2011 and 2016 were included in this observational study...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27831538/proteinuria-selectivity-index-as-a-prognostic-biomarker-in-lupus-nephritis
#8
T Hasegawa, K Suzuki, Y Kaneko, T Takeuchi
OBJECTIVES: The selectivity index has been proposed in predicting the response to immunosuppressive therapy in nephrotic syndrome and other primary kidney disorders. The aim of this study was to elucidate the predictive value of the selectivity index for the treatment response and renal outcome in patients with lupus nephritis. METHODS: Forty-four patients with lupus nephritis with selectivity index available at the time of renal biopsy were divided into two groups according to the cut-off value of the selectivity index determined by a receiver operating characteristics curve to differentiate treatment responders from non-responders...
November 9, 2016: Lupus
https://www.readbyqxmd.com/read/27651302/primary-focal-segmental-glomerulosclerosis-mirnas-and-targeted-therapies
#9
REVIEW
Johannes Leierer, Gert Mayer, Andreas Kronbichler
BACKGROUND: Primary focal segmental glomerulosclerosis (FSGS) is a common cause of nephrotic syndrome. AIMS: The pathogenic steps leading to primary FSGS are still obscure, although evidence suggests that circulatory factor(s) are involved in the onset of disease. RESULTS: Recent technical advances allow the analysis of miRNA expression in tissues and body fluids, leading to reports of miRNAs involved in the molecular mechanisms of FSGS-aetiopathogenesis...
November 2016: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27511639/serum-levels-of-12-renal-function-and-injury-markers-in-patients-with-glomerulonephritis
#10
Natalia M Serwin, Magda Wiśniewska, Anna Jesionowska, Edyta Skwirczyńska, Zuzanna Marcinowska, Barbara Dołęgowska
INTRODUCTION    Glomerulonephritis (GN) is a complex disease that affects the function of the whole nephron. There are few data on the serum levels of the most common biomarkers of kidney function and injury in GN, or the studies provide ambiguous results. OBJECTIVES    The aim of the study was to evaluate the levels of known kidney-specific and nonspecific markers of renal function or injury in the serum of patients with diagnosed primary or secondary GN, with or without the presence of nephrotic syndrome (NS) and arterial hypertension (AH)...
August 9, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27508304/urine-il-8-is-the-predictive-biomarker-of-steroid-sensitivity-in-patients-with-idiopathic-nephrotic-syndrome
#11
H Xie, M Fang, H Lin, P Li, N Sun, J Chen, Y Sun
No abstract text is available yet for this article.
August 10, 2016: West Indian Medical Journal
https://www.readbyqxmd.com/read/27507896/reciprocal-regulation-of-11%C3%AE-hsds-may-predict-steroid-sensitivity-in-childhood-nephrotic-syndrome
#12
Shuji Sai, Masaki Yamamoto, Rie Yamaguchi, Karen E Chapman, Teruaki Hongo
Childhood nephrotic syndrome, in which steroid-dependence occurs concurrently with steroid-resistance, requires aggressive therapy to prevent relapse. Predictive biomarkers that can be used to stratify treatment are urgently needed. Here we report that reciprocal regulation of the glucocorticoid metabolizing enzymes, 11β-hydroxysteroid dehydrogenase types 1 and 2, is associated with steroid-responsiveness and disease remission in childhood nephrotic syndrome, potentially providing a marker to identify patients in which aggressive therapy is required...
September 2016: Pediatrics
https://www.readbyqxmd.com/read/27314022/fsgs-diagnosis-and-diagnostic-work-up
#13
REVIEW
Ben Sprangers, Björn Meijers, Gerald Appel
Focal segmental glomerulosclerosis is a histologic lesion, rather than a clinical disease. FSGS is common cause of nephrotic syndrome in both adults and children worldwide. In the United States it is the most common primary glomerular disease resulting in end-stage renal disease and recent reports have suggested that its incidence might be on the rise. Currently the incidence is estimated to be 7 per million. The podocyte is the cellular target cell in FSGS and in recent years substantial insight in the pathogenesis and genetics of FSGS have accumulated...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27252935/long-term-outcomes-of-childhood-onset-nephrotic-syndrome
#14
REVIEW
Rebecca Hjorten, Zohra Anwar, Kimberly Jean Reidy
There are limited studies on long-term outcomes of childhood onset nephrotic syndrome (NS). A majority of children with NS have steroid-sensitive nephrotic syndrome (SSNS). Steroid-resistant nephrotic syndrome (SRNS) is associated with a high risk of developing end-stage renal disease. Biomarkers and analysis of genetic mutations may provide new information for prognosis in SRNS. Frequently relapsing and steroid-dependent NS is associated with long-term complications, including dyslipidemia, cataracts, osteoporosis and fractures, obesity, impaired growth, and infertility...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27247212/systematic-biomarker-discovery-and-coordinative-validation-for-different-primary-nephrotic-syndromes-using-gas-chromatography-mass-spectrometry
#15
Jung-Eun Lee, Yu Ho Lee, Se-Yun Kim, Yang Gyun Kim, Ju-Young Moon, Kyung-Hwan Jeong, Tae Won Lee, Chun-Gyoo Ihm, Sooah Kim, Kyoung Heon Kim, Dong Ki Kim, Yon Su Kim, Chan-Duck Kim, Cheol Whee Park, Do Yup Lee, Sang-Ho Lee
The goal of this study is to identify systematic biomarker panel for primary nephrotic syndromes from urine samples by applying a non-target metabolite profiling, and to validate their utility in independent sampling and analysis by multiplex statistical approaches. Nephrotic syndrome (NS) is a nonspecific kidney disorder, which is mostly represented by minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), and membranous glomerulonephritis (MGN). Since urine metabolites may mirror disease-specific functional perturbations in kidney injury, we examined urine samples for distinctive metabolic changes to identify biomarkers for clinical applications...
July 1, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27200372/circulating-permeability-factors-in-primary-focal-segmental-glomerulosclerosis-a-review-of-proposed-candidates
#16
REVIEW
Eva Königshausen, Lorenz Sellin
Primary focal segmental glomerulosclerosis (FSGS) is a major cause of the nephrotic syndrome and often leads to end-stage renal disease. This review focuses on circulating permeability factors in primary FSGS that have been implicated in the pathogenesis for a long time, partly due to the potential recurrence in renal allografts within hours after transplantation. Recently, three molecules have been proposed as a potential permeability factor by different groups: the soluble urokinase plasminogen activator receptor (suPAR), cardiotrophin-like cytokine factor-1 (CLCF-1), and CD40 antibodies...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27123255/changes-in-the-dickkopf-1-and-tartrate-resistant-acid-phosphatase-5b-serum-levels-in-preschool-children-with-nephrotic-syndrome
#17
Jianjiang Zhang, Huiqin Zeng, Shuqin Fu, Peipei Shi, Miao Wang, L I Guo
The aim of the present study was to investigate the changes in the serum Dickkopf-1 (DKK-1) and tartrate-resistant acid phosphatase 5b (TRACP-5b) levels in preschoolers with nephrotic syndrome (NS). A total of 50 preschoolers (3-5 years old) with NS and 20 healthy preschoolers (control group) were enrolled in the prospective single-center study. The patients with NS received glucocorticoid treatment and the control group received no treatment. The levels of serum calcium, phosphorus, TRACP-5b, DKK-1 and 25-hydroxyvitamin D3 were measured at baseline and at 3 and 6 months in all the subjects...
May 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27092244/cell-biology-and-genetics-of-minimal-change-disease
#18
REVIEW
Moin A Saleem, Yasuko Kobayashi
Minimal change disease (MCD) is an important cause of nephrotic syndrome and is characterized by massive proteinuria and hypoalbuminemia, resulting in edema and hypercholesterolemia. The podocyte plays a key role in filtration and its disruption results in a dramatic loss of function leading to proteinuria. Immunologic disturbance has been suggested in the pathogenesis of MCD. Because of its clinical features, such as recurrent relapse/remission course, steroid response in most patients, and rare familial cases, a genetic defect has been thought to be less likely in MCD...
2016: F1000Research
https://www.readbyqxmd.com/read/26940094/urinary-soluble-cd163-in-active-renal-vasculitis
#19
Vincent P O'Reilly, Limy Wong, Claire Kennedy, Louise A Elliot, Shane O'Meachair, Alice Marie Coughlan, Eoin C O'Brien, Michelle M Ryan, Diego Sandoval, Emma Connolly, Gerjan J Dekkema, Jiaying Lau, Wayel H Abdulahad, Jan-Stephan F Sanders, Peter Heeringa, Colm Buckley, Cathal O'Brien, Stephen Finn, Clemens D Cohen, Maja T Lindemeyer, Fionnuala B Hickey, Paul V O'Hara, Conleth Feighery, Sarah M Moran, George Mellotte, Michael R Clarkson, Anthony J Dorman, Patrick T Murray, Mark A Little
A specific biomarker that can separate active renal vasculitis from other causes of renal dysfunction is lacking, with a kidney biopsy often being required. Soluble CD163 (sCD163), shed by monocytes and macrophages, has been reported as a potential biomarker in diseases associated with excessive macrophage activation. Thus, we hypothesized that urinary sCD163 shed by crescent macrophages correlates with active glomerular inflammation. We detected sCD163 in rat urine early in the disease course of experimental vasculitis...
September 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/26940092/mesencephalic-astrocyte-derived-neurotrophic-factor-as-a-urine-biomarker-for-endoplasmic-reticulum-stress-related-kidney-diseases
#20
Yeawon Kim, Heedoo Lee, Scott R Manson, Maria Lindahl, Bradley Evans, Jeffrey H Miner, Fumihiko Urano, Ying Maggie Chen
Endoplasmic reticulum (ER) stress and disrupted proteostasis contribute to the pathogenesis of a variety of glomerular and tubular diseases. Thus, it is imperative to develop noninvasive biomarkers for detecting ER stress in podocytes or tubular cells in the incipient stage of disease, when a kidney biopsy is not yet clinically indicated. Mesencephalic astrocyte-derived neurotrophic factor (MANF) localizes to the ER lumen and is secreted in response to ER stress in several cell types. Here, using mouse models of human nephrotic syndrome caused by mutant laminin β2 protein-induced podocyte ER stress and AKI triggered by tunicamycin- or ischemia-reperfusion-induced tubular ER stress, we examined MANF as a potential urine biomarker for detecting ER stress in podocytes or renal tubular cells...
October 2016: Journal of the American Society of Nephrology: JASN
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