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Nephrology, Dialysis, Transplantation

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https://www.readbyqxmd.com/read/28419296/urinary-podocyte-and-tgf-%C3%AE-1-mrna-as-markers-for-disease-activity-and-progression-in-anti-glomerular-basement-membrane-nephritis
#1
Akihiro Fukuda, Akihiro Minakawa, Yuji Sato, Takashi Iwakiri, Shuji Iwatsubo, Hiroyuki Komatsu, Masao Kikuchi, Kazuo Kitamura, Roger C Wiggins, Shouichi Fujimoto
Background.: Podocyte depletion causes glomerulosclerosis, with persistent podocyte loss being a major factor driving disease progression. Urinary podocyte mRNA is potentially useful for monitoring disease progression in both animal models and in humans. To determine whether the same principles apply to crescentic glomerular injury, a rat model of anti-glomerular basement membrane (anti-GBM) nephritis was studied in parallel with a patient with anti-GBM nephritis. Methods...
April 17, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28407121/urea-and-chronic-kidney-disease-the-comeback-of-the-century-in-uraemia-research
#2
Raymond Vanholder, Tessa Gryp, Griet Glorieux
Urea, a marker of uraemic retention in chronic kidney disease (CKD) and of adequacy of intradialytic solute removal, has traditionally been considered to be biologically inert. However, a number of recent experimental data suggest that urea is toxic at concentrations representative for CKD. First of all, at least five studies indicate that urea itself induces molecular changes related to insulin resistance, free radical production, apoptosis and disruption of the protective intestinal barrier. Second, urea is at the origin of the generation of cyanate, ammonia and carbamylated compounds, which as such all have been linked to biological changes...
April 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28402557/effect-of-parathyroidectomy-and-cinacalcet-on-quality-of-life-in-patients-with-end-stage-renal-disease-related-hyperparathyroidism-a-systematic-review
#3
Willemijn Y van der Plas, Roderick R Dulfer, Anton F Engelsman, Liffert Vogt, Martin H de Borst, Tessa M van Ginhoven, Schelto Kruijff
Background.: Patients with end-stage renal disease (ESRD) have a decreased quality of life (QoL), which is attributable in part to ESRD-related hyperparathyroidism (HPT). Both cinacalcet and parathyroidectomy (PTx) are treatments for advanced HPT, but their effects on QoL are unclear. We performed a systematic review to evaluate the impact of cinacalcet and PTx on QoL. Methods.: A systematic literature search was performed using PubMed and EMBASE databases to identify relevant articles...
April 10, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28402551/a-risk-prediction-score-for-acute-kidney-injury-in-the-intensive-care-unit
#4
Rakesh Malhotra, Kianoush B Kashani, Etienne Macedo, Jihoon Kim, Josee Bouchard, Susan Wynn, Guangxi Li, Lucila Ohno-Machado, Ravindra Mehta
Background.: Acute kidney injury (AKI) is common in critically ill patients and is associated with high morbidity and mortality. Early identification of high-risk patients provides an opportunity to develop strategies for prevention, early diagnosis and treatment of AKI. Methods.: We undertook this multicenter prospective cohort study to develop and validate a risk score for predicting AKI in patients admitted to an intensive care unit (ICU). Patients were screened for predictor variables within 48 h of ICU admission...
April 10, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28402508/preserved-endothelial-progenitor-cell-angiogenic-activity-in-african-american-essential-hypertensive-patients
#5
Seo Rin Kim, Alfonso Eirin, Sandra M S Herrmann, Ahmed Saad, Luis A Juncos, Amir Lerman, Stephen C Textor, Lilach O Lerman
Background.: African American (AA) subjects with essential hypertension (EH) have greater inflammation and cardiovascular complications than Caucasian EH. An impaired endogenous cellular repair system may exacerbate vascular injury in hypertension, yet whether these differ between AA EH and Caucasian EH remains unknown. Vascular repair by circulating endothelial progenitor cells (EPCs) is controlled by regulators of EPC mobilization, homing, adhesion and new vessel formation, but can be hindered by various cytokines...
April 10, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28387829/hereditary-polycystic-kidney-disease-is-characterized-by-lymphopenia-across-all-stages-of-kidney-dysfunction-an-observational-study
#6
Steven Van Laecke, Tessa Kerre, Evi V Nagler, Bart Maes, Rogier Caluwe, Eva Schepers, Griet Glorieux, Wim Van Biesen, Francis Verbeke
Background: Polycystic kidney disease (PKD) is characterized by urinary tract infections and extrarenal abnormalities such as an increased risk of cancer. As mutations in polycystin-1 and -2 are associated with decreased proliferation of immortalized lymphoblastoid cells in PKD, we investigated whether lymphopenia could be an unrecognized trait of PKD. Methods: We studied 700 kidney transplant recipients with ( n  = 126) or without PKD at the time of kidney transplantation between 1 January 2003 and 31 December 2014 at Ghent University Hospital...
April 6, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28387813/whole-exome-sequencing-for-prenatal-diagnosis-of-fetuses-with-congenital-anomalies-of-the-kidney-and-urinary-tract
#7
Ting-Ying Lei, Fang Fu, Ru Li, Dan Wang, Rong-Yue Wang, Xiang-Yi Jing, Qiong Deng, Zhou-Zhou Li, Ze-Qun Liu, Xin Yang, Dong-Zhi Li, Can Liao
Background.: In the absence of cytogenetic abnormality, fetuses with congenital anomalies of the kidney and urinary tract (CAKUT) with/without other structural anomalies show a higher likelihood of monogenic causes; however, defining the underlying pathology can be challenging. Here, we investigate the value of whole-exome sequencing (WES) in fetuses with CAKUT but normal findings upon karyotyping and chromosome microarray analysis. Methods.: WES was performed on DNA from the cord blood of 30 fetuses with unexplained CAKUT with/without other structural anomalies...
April 6, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28387811/dual-therapy-targeting-the-endocannabinoid-system-prevents-experimental-diabetic-nephropathy
#8
Federica Barutta, Serena Grimaldi, Roberto Gambino, Kiran Vemuri, Alexandros Makriyannis, Laura Annaratone, Vincenzo di Marzo, Graziella Bruno, Gabriella Gruden
Background.: The endocannabinoid system has been implicated in the pathogenesis of diabetic nephropathy (DN). We investigated the effect of combined therapy with AM6545, a 'peripherally' restricted cannabinoid receptor type 1 (CB1R) neutral antagonist, and AM1241, a cannabinoid receptor type 2 (CB2R) agonist, in experimental DN. Methods.: Renal function and structure, podocyte proteins and markers of both fibrosis and inflammation were studied in streptozotocin-induced diabetic mice treated for 14 weeks with vehicle, AM6545, AM1241 and AM6545-AM1241...
April 6, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28379536/multicenter-open-label-extension-trial-to-evaluate-the-long-term-efficacy-and-safety-of-early-versus-delayed-treatment-with-tolvaptan-in-autosomal-dominant-polycystic-kidney-disease-the-tempo-4-4-trial
#9
Vicente E Torres, Arlene B Chapman, Olivier Devuyst, Ron T Gansevoort, Ronald D Perrone, Ann Dandurand, John Ouyang, Frank S Czerwiec, Jaime D Blais
Background.: In TEMPO 3:4, the vasopressin V2 receptor antagonist tolvaptan slowed total kidney volume (TKV) growth and estimated glomerular filtration rate (eGFR) decline relative to placebo. Methods.: TEMPO 4:4 was designed to provide an additional 2 years of data on the long-term safety and efficacy of tolvaptan in subjects completing TEMPO 3:4. The objective was to assess the disease-modifying effects of tolvaptan on TKV and eGFR end-points including change from baseline over the combined duration of TEMPO 3:4 and TEMPO 4:4, and non-inferiority of slopes during TEMPO 4:4...
March 31, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28379486/creatinine-generation-from-kinetic-modeling-with-or-without-postdialysis-serum-creatinine-measurement-results-from-the-hemo-study
#10
John T Daugirdas, Thomas A Depner
Background: A convenient method to estimate the creatinine generation rate and measures of creatinine clearance in hemodialysis patients using formal kinetic modeling and standard pre- and postdialysis blood samples has not been described. Methods: We used data from 366 dialysis sessions characterized during follow-up month 4 of the HEMO study, during which cross-dialyzer clearances for both urea and creatinine were available. Blood samples taken at 1 h into dialysis and 30 min and 60 min after dialysis were used to determine how well a two-pool kinetic model could predict creatinine concentrations and other kinetic parameters, including the creatinine generation rate...
March 31, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28379433/microbiome-perturbation-by-oral-vancomycin-reduces-plasma-concentration-of-two-gut-derived-uremic-solutes-indoxyl-sulfate-and-p-cresyl-sulfate-in-end-stage-renal-disease
#11
Lama Nazzal, Julia Roberts, Prabhjot Singh, Sachin Jhawar, Albert Matalon, Zhan Gao, Robert Holzman, Len Liebes, Martin J Blaser, Jerome Lowenstein
Background.: Observational studies have suggested a relationship between the plasma concentration of indoxyl sulfate (IS) and p -cresyl sulfate (PCS), small gut-derived 'uremic solutes', and the high incidence of uremic cardiomyopathy in patients with end-stage renal disease (ESRD). IS and PCS are derived from the metabolism of dietary components (tryptophan and tyrosine) by gut bacteria. This pilot study was designed to examine the effects of a poorly absorbable antibiotic (vancomycin) on the plasma concentration of two gut-derived 'uremic solutes', IS and PCS, and on the composition of the gut microbiome...
March 31, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28379431/barriers-to-living-donor-kidney-transplantation-in-the-united-kingdom-a-national-observational-study
#12
Diana A Wu, Matthew L Robb, Christopher J E Watson, John L R Forsythe, Charles R V Tomson, John Cairns, Paul Roderick, Rachel J Johnson, Rommel Ravanan, Damian Fogarty, Clare Bradley, Andrea Gibbons, Wendy Metcalfe, Heather Draper, Andrew J Bradley, Gabriel C Oniscu
Background.: Living donor kidney transplantation (LDKT) provides more timely access to transplantation and better clinical outcomes than deceased donor kidney transplantation (DDKT). This study investigated disparities in the utilization of LDKT in the UK. Methods.: A total of 2055 adults undergoing kidney transplantation between November 2011 and March 2013 were prospectively recruited from all 23 UK transplant centres as part of the Access to Transplantation and Transplant Outcome Measures (ATTOM) study...
March 31, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371874/unacceptable-human-leucocyte-antigens-how-to-navigate-between-increased-immunological-risk-and-waiting-time
#13
Karl Martin Wissing, Daniel Abramowicz
No abstract text is available yet for this article.
March 28, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371803/parapelvic-cysts-a-distinguishing-feature-of-renal-fabry-disease
#14
Antonio Pisani, Luigi Petruzzelli Annicchiarico, Angela Pellegrino, Dario Bruzzese, Sandro Feriozzi, Massimo Imbriaco, Enrico Tedeschi, Sirio Cocozza, Dario De Rosa, Renzo Mignani, Massimiliano Veroux, Yuri Battaglia, Daniela Concolino, Simona Sestito, Federico Pieruzzi, Leonardo Caroti, Raffaele Manna, Carmela Zizzo, Michele Santangelo, Massimo Sabbatini, Eleonora Riccio
Background.: Fabry's disease (FD) is a rare, multi-organ lysosomal disease, caused by the deficiency of the enzyme α-galactosidase A, and is difficult to diagnose. Although parapelvic cysts (PC) were previously associated with FD, their prevalence and significance are unclear. Methods.: The present study aimed to: (i) evaluate, by renal ultrasound, the real prevalence of PC and of their determinants in a multicentre, nationwide cohort of FD patients ( n  = 173, Study 1) and (ii) ascertain whether a greater accuracy of PC detection improved their identification, in FD patients from a single centre ( n  = 67, Study 2)...
March 28, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371905/the-quest-for-equilibrium-exploring-the-thin-red-line-between-bleeding-and-ischaemic-risks-in-the-management-of-acute-coronary-syndromes-in-chronic-kidney-disease-patients
#15
Alexandru Burlacu, Simonetta Genovesi, Alberto Ortiz, Mehmet Kanbay, Patrick Rossignol, Maciej Banach, Jolanta Malyszko, David Goldsmith, Adrian Covic
Coronary artery disease and acute coronary syndrome (ACS) are both common in patients with chronic kidney disease (CKD). CKD patients have higher risks of bleeding and thrombosis. However, they remain under-represented in major randomized clinical trials (RCTs), and there is no medical evidence-based foundation on which to issue specific recommendations about the management of ACS in CKD. CKD patients with ACS frequently are diagnosed later, receive fewer acute interventions and are at increased risk of over-dosage of medications and under-prescription/under-performance of interventional treatments than CKD patients without ACS...
March 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371815/phase-2-studies-of-oral-hypoxia-inducible-factor-prolyl-hydroxylase-inhibitor-fg-4592-for-treatment-of-anemia-in-china
#16
Nan Chen, Jiaqi Qian, Jianghua Chen, Xueqing Yu, Changlin Mei, Chuanming Hao, Gengru Jiang, Hongli Lin, Xinzhou Zhang, Li Zuo, Qiang He, Ping Fu, Xuemei Li, Dalvin Ni, Stefan Hemmerich, Cameron Liu, Lynda Szczech, Anatole Besarab, Thomas B Neff, Kin-Hung Peony Yu, Frank H Valone
Background.: FG-4592 (roxadustat) is an oral hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitor (HIF-PHI) promoting coordinated erythropoiesis through the transcription factor HIF. Two Phase 2 studies were conducted in China to explore the safety and efficacy of FG-4592 (USAN name: roxadustat, CDAN name: ), a HIF-PHI, in patients with anemia of chronic kidney disease (CKD), both patients who were dialysis-dependent (DD) and patients who were not dialysis-dependent (NDD). Methods...
March 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371939/erratum
#17
Juhan Lee, Jun Yong Park, Kyu Ha Huh, Beom Seok Kim, Myoung Soo Kim, Soon Il Kim, Sang Hoon Ahn, Yu Seun Kim
No abstract text is available yet for this article.
March 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371934/erratum
#18
Alexander J Hamilton, Anna Casula, Yoav Ben-Shlomo, Fergus J Caskey, Carol D Inward
No abstract text is available yet for this article.
March 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371878/differences-in-acute-kidney-injury-ascertainment-for-clinical-and-preclinical-studies
#19
Marco Fiorentino, Giuseppe Castellano, John A Kellum
Background: . Acute kidney injury (AKI) is a common clinical condition directly associated with adverse outcomes. Several AKI biomarkers have been discovered, but their use in clinical and preclinical studies has not been well examined. This study aims to investigate the differences between clinical and preclinical studies on AKI biomarkers. Methods: . We performed a systematic review of clinical and preclinical interventional studies that considered AKI biomarkers in enrollment criteria and/or outcome assessment and described the main differences according to their setting, the inclusion of biomarkers in the definition of AKI and the use of biomarkers as primary or secondary end points...
March 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28371854/the-effect-of-revascularization-in-patients-with-anatomically-significant-atherosclerotic-renovascular-disease-presenting-with-high-risk-clinical-features
#20
Diana Vassallo, James Ritchie, Darren Green, Constantina Chrysochou, PhilipA Kalra
Background.: Patients with atherosclerotic renovascular disease (ARVD) and high-risk clinical presentations have largely been excluded from randomized controlled trials comparing renal revascularization and optimal medical therapy. Here, we explore the effect of revascularization on death, progression to end-stage kidney disease (ESKD) and cardiovascular events (CVE) in a highly selected cohort of patients with ARVD. Methods.: All patients with a radiological diagnosis of ARVD referred to our tertiary centre have been recruited into a single-centre cohort study between 1986 and 2014...
March 23, 2017: Nephrology, Dialysis, Transplantation
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