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Nephrology, Dialysis, Transplantation

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https://www.readbyqxmd.com/read/29788462/clinicopathological-predictors-for-progression-of-chronic-kidney-disease-in-nephrosclerosis-a-biopsy-based-cohort-study
#1
Masayuki Yamanouchi, Junichi Hoshino, Yoshifumi Ubara, Kenmei Takaichi, Keiichi Kinowaki, Takeshi Fujii, Kenichi Ohashi, Koki Mise, Tadashi Toyama, Akinori Hara, Miho Shimizu, Kengo Furuichi, Takashi Wada
Background: Biopsy-based studies on nephrosclerosis are lacking and the clinicopathological predictors for progression of chronic kidney disease (CKD) are not well established. Methods: We retrospectively assessed 401 patients with biopsy-proven nephrosclerosis in Japan. Progression of CKD was defined as new-onset end-stage renal disease, decrease of estimated glomerular filtration rate (eGFR) by  ≥50% or doubling of serum creatinine, and the sub-distribution hazard ratio (SHR) with 95% confidence interval (CI) for CKD progression was determined for various clinical and histological characteristics in competing risks analysis...
May 19, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29788096/pnaktide-ameliorates-renal-interstitial-fibrosis-through-inhibition-of-sodium-potassium-adenosine-triphosphatase-mediated-signaling-pathways-in-unilateral-ureteral-obstruction-mice
#2
Xi Cheng, Yi Song, Yu Wang
Background: Sodium-potassium adenosine triphosphatase (Na/K-ATPase) has been shown to regulate Src activity by combining with Src to keep it in an inactive form. We previously reported that Na/K-ATPase was downregulated in unilateral ureteral obstruction (UUO) animals. In this study, we examined whether inhibition of Na/K-ATPase-mediated Src signaling pathways ameliorated renal interstitial fibrosis induced by UUO. Methods: UUO was performed on male C57BL/6J mice...
May 17, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29788425/patients-with-advanced-chronic-kidney-disease-and-vascular-calcification-have-a-large-hydrodynamic-radius-of-secondary-calciprotein-particles
#3
Wei Chen, Viktoriya Anokhina, Gregory Dieudonne, Matthew K Abramowitz, Randeep Kashyap, Chen Yan, Tong Tong Wu, Karen L de Mesy Bentley, Benjamin L Miller, David A Bushinsky
Background: The size of secondary calciprotein particles (CPP2) and the speed of transformation (T50) from primary calciprotein particles (CPP1) to CPP2 in serum may be associated with vascular calcification (VC) in patients with chronic kidney disease (CKD). Methods: We developed a high throughput, microplate-based assay using dynamic light scattering (DLS) to measure the transformation of CPP1 to CPP2, hydrodynamic radius (Rh) of CPP1 and CPP2, T50 and aggregation of CPP2...
May 16, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29788140/immune-unreactive-urinary-albumin-as-a-predictor-of-cardiovascular-events-the-hortega-study
#4
Fernando Martínez, Gernot Pichler, Adrian Ruiz, Juan C Martín-Escudero, Felipe J Chaves, Veronica Gonzalez-Albert, Maria Tellez-Plaza, Hiddo J L Heerspink, Dick D E Zeeuw, Josep Redon
Background: We aimed to determine if immune-unreactive albumin excretion (IURAE) is associated with cardiovascular (CV) events in a representative sample of a general population from Spain. Methods: We included 1297 subjects (mean age ± standard error 48.0 ± 0.2 years, 48% females), who participated in the Hortega Follow-Up Study. The primary endpoint was incidence of fatal and non-fatal CV events. Urinary albumin excretion (UAE) was measured in spot voided urine, frozen at -80°C, by immunonephelometry [immune-reactive albumin excretion (IRAE)] and by high-performance liquid chromatography (HPLC) [total albumin excretion (AE)]...
May 16, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29771383/relationship-of-fibroblast-growth-factor-21-with-kidney-function-and-albuminuria-multi-ethnic-study-of-atherosclerosis
#5
Sahapab Anuwatmatee, Matthew A Allison, Michael G Shlipak, Robyn L McClelland, Holly Kramer, Shudi Tang, Liming Hou, Kerry-Anne Rye, Kwok Leung Ong
Background: Fibroblast growth factor 21 (FGF21) may play a role in the development of chronic kidney disease (CKD). We therefore investigated the relationship of plasma FGF21 levels with kidney function and albuminuria in the Multi-Ethnic Study of Atherosclerosis (MESA). Methods: The analysis included 5724 MESA participants ages 45-84 years between 2000 and 2002, free of clinically apparent cardiovascular disease (CVD). Participants were followed up in person at four additional clinic visits over 10 years...
May 15, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29762740/erratum
#6
Claire C J Dekkers, David C Wheeler, C David Sjöström, Bergur V Stefansson, Valerie Cain, Hiddo J L Heerspink
No abstract text is available yet for this article.
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29762739/ckd-staging-with-cystatin-c-or-creatinine-based-formulas-flipping-the-coin
#7
Sergio Luis-Lima, Beatriz Escamilla-Cabrera, Natalia Negrín-Mena, Sara Estupiñán, Patricia Delgado-Mallén, Domingo Marrero-Miranda, Ana González-Rinne, Rosa Miquel-Rodríguez, María Ángeles Cobo-Caso, Manuel Hernández-Guerra, Juana Oramas, Norberto Batista, Ana Aldea-Perona, Pablo Jorge-Pérez, Carlos González-Alayón, Miguel Moreno-Sanfiel, Juan Antonio González-Rodríguez, Laura Henríquez, Raquel Alonso-Pescoso, Laura Díaz-Martín, Federico González-Rinne, Bernardo Alio Lavín-Gómez, Judith Galindo-Hernández, Macarena Sánchez-Gallego, Alejandra González-Delgado, Alejandro Jiménez-Sosa, Armando Torres, Esteban Porrini
Background: Chronic kidney disease (CKD) affects 10-13% of the population worldwide. CKD classification stratifies patients in five stages of risk for progressive renal disease based on estimated glomerular filtration rate (eGFR) by formulas and albuminuria. However, the reliability of formulas to reflect real renal function is a matter of debate. The effect of the error of formulas in the CKD classification is unclear, particularly for cystatin C-based equations. Methods: We evaluated the reliability of a large number of cystatin C and/or creatinine-based formulas in the definition of the stages of CKD in 882 subjects with different clinical situations over a wide range of glomerular filtration rates (GFRs) (4...
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29762725/programmed-cell-death-protein-1-inhibitor-treatment-is-associated-with-acute-kidney-injury-and-hypocalcemia-meta-analysis
#8
Sandhya Manohar, Panagiotis Kompotiatis, Charat Thongprayoon, Wisit Cheungpasitporn, Joerg Herrmann, Sandra M Herrmann
Background: The aim of this meta-analysis was to assess the risks and incidence of nephrotoxicity and electrolyte abnormalities in patients receiving programmed cell death protein 1 (PD-1) inhibitors. Methods: We conducted a meta-analysis of clinical trials that monitored electrolyte levels and kidney functions during treatment with nivolumab or pembrolizumab by searching MEDLINE, EMBASE and the Cochrane Database from inception through April 2017. Our protocol is registered with International Prospective Register of Systematic Reviews; no...
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29757424/continuous-monitoring-of-kidney-transplant-perfusion-with-near-infrared-spectroscopy
#9
Georgia Malakasioti, Stephen D Marks, Tom Watson, Fariba Williams, Mariesa Taylor-Allkins, Nizam Mamode, Justin Morgan, Wesley N Hayes
Background: Current reliance on clinical, laboratory and Doppler ultrasound (DUS) parameters for monitoring kidney transplant perfusion in the immediate post-operative period in children risks late recognition of allograft hypoperfusion and vascular complications. Near-infrared spectroscopy (NIRS) is a real-time, non-invasive technique for monitoring tissue oxygenation percutaneously. NIRS monitoring of kidney transplant perfusion has not previously been validated to the gold standard of DUS...
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29757410/chronic-kidney-disease-and-peripheral-nerve-function-in-the-health-aging-and-body-composition-study
#10
Ranjani N Moorthi, Simit Doshi, Linda F Fried, Sharon M Moe, Mark J Sarnak, Suzanne Satterfield, Ann V Schwartz, Michael Shlipak, Brittney S Lange-Maia, Tamara B Harris, Anne B Newman, Elsa S Strotmeyer
Background: Chronic kidney disease (CKD) is associated with poor mobility. Peripheral nerve function alterations play a significant role in low mobility. We tested the hypothesis that early CKD is associated with altered sensory, motor and autonomic nerve function. Methods: Participants in the Health, Aging and Body Composition cohort who had kidney function measures in Year 3 (1999-2000) and nerve function measurements at Year 4 (2000-01) were analyzed (n = 2290)...
May 10, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29746671/validation-of-the-living-kidney-donor-profile-index-in-a-european-cohort-and-comparison-of-long-term-outcomes-with-us-results
#11
Gregor Rehse, Fabian Halleck, Dmytro Khadzhynov, Lukas J Lehner, Anna Kleinsteuber, Anja Staeck, Michael Duerr, Klemens Budde, Oliver Staeck
Background: Recently, a risk index for living donor kidney (LDK) transplantation [living kidney donor profile index (LKDPI)] was proposed to compare LDKs with each other and with deceased donor kidneys (DDKs). Until now, the LKDPI has not been validated externally. Methods: This long-term retrospective analysis included 1305 consecutive adult kidney transplant recipients who were transplanted 2000-16 in our centre. The Kidney Donor Profile Index (KDPI) was calculated in 889 DDKs and the LKDPI in 416 LDKs...
May 9, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29741651/serum-phosphate-optimal-timing-and-range-associated-with-patients-survival-in-haemodialysis-the-cosmos-study
#12
José L Fernández-Martín, Adriana Dusso, Pablo Martínez-Camblor, Maria P Dionisi, Jürgen Floege, Markus Ketteler, Gérard London, Francesco Locatelli, José L Górriz, Boleslaw Rutkowski, Willem-Jan Bos, Christian Tielemans, Pierre-Yves Martin, Rudolf P Wüthrich, Drasko Pavlovic, Miha Benedik, Diego Rodríguez-Puyol, Juan J Carrero, Carmine Zoccali, Jorge B Cannata-Andía
Background: Serum phosphate is a key parameter in the management of chronic kidney disease-mineral and bone disorder (CKD-MBD). The timing of phosphate measurement is not standardized in the current guidelines. Since the optimal range of these biomarkers may vary depending on the duration of the interdialytic interval, in this analysis of the Current management of secondary hyperparathyroidism: a multicentre observational study (COSMOS), we assessed the influence of a 2- (midweek) or 3-day (post-weekend) dialysis interval for blood withdrawal on serum levels of CKD-MBD biomarkers and their association with mortality risk...
May 7, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29733422/soluble-cd146-and-b-type-natriuretic-peptide-dissect-overhydration-into-functional-components-of-prognostic-relevance-in-haemodialysis-patients
#13
Mattia Arrigo, Seraina Von Moos, Kerem Gerritsen, Malha Sadoune, Kamonwan Tangvoraphonkchai, Andrew Davenport, Alexandre Mebazaa, Stephan Segerer, Pietro E Cippà
Background: Accurate volume status evaluation and differentiation of cardiac and non-cardiac components of overhydration (OH) are fundaments of optimal haemodialysis (HD) management. Methods: This study, by combining bioimpedance measurements, cardiovascular biomarkers and echocardiography, aimed at dissecting OH into its major functional components, and prospectively tested the association between cardiac and non-cardiac components of OH with mortality. In the first part, we validated soluble CD146 (sCD146) as a non-cardiac biomarker of systemic congestion in a cohort of 30 HD patients...
May 4, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29733413/urinary-angiotensinogen-an-indicator-of-active-antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#14
Liling Wu, Manqiu Yang, Xiaogang Feng, Lingwei Jin, Chunyi Wu, Shuang Cui, Zhanmei Zhou, Xiaohong Zhong, Meng Shi, Zhichen Yang, Wei Cao
Background: One of the major challenges in improving the management of antineutrophil cytoplasmic antibody-associated glomerulonephritis (ANCA-GN) is the lack of a disease-specific indicator for histological lesions and disease activity. Here we tested the utility of urinary angiotensinogen (UAGT) as a biomarker of renal disease activity in ANCA-GN. Methods: A prospective, two-stage cohort study was performed in ANCA-GN patients. In Stage I, UAGT was measured at the time of renal biopsy in 69 patients from two centers (test set) and 25 patients from two other centers (validation set)...
May 4, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29733407/bone-inflammation-and-the-bone-marrow-niche-in-chronic-kidney-disease-what-do-we-know
#15
Sandro Mazzaferro, Giuseppe Cianciolo, Antonio De Pascalis, Chiara Guglielmo, Pablo A Urena Torres, Jordi Bover, Lida Tartaglione, Marzia Pasquali, Gaetano La Manna
Recent improvements in our understanding of physiology have altered the way in which bone is perceived: no longer is it considered as simply the repository of divalent ions, but rather as a sophisticated endocrine organ with potential extraskeletal effects. Indeed, a number of pathologic conditions involving bone in different ways can now be reconsidered from a bone-centred perspective. For example, in metabolic bone diseases like osteoporosis (OP) and renal osteodystrophy (ROD), the association with a worse cardiovascular outcome can be tentatively explained by the possible derangements of three recently discovered bone hormones (osteocalcin, fibroblast growth factor 23 and sclerostin) and a bone-specific enzyme (alkaline phosphatase)...
May 4, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29733390/increase-in-tacrolimus-exposure-after-steroid-tapering-is-influenced-by-cyp3a5-and-pregnane-x-receptor-genetic-polymorphisms-in-renal-transplant-recipients
#16
Frank Stifft, Sander M J van Kuijk, Otto Bekers, Maarten H L Christiaans
Background: Tacrolimus, a drug for prevention of rejection after kidney transplantation, has a narrow therapeutic window and is metabolized by the cytochrome P540 3A (CYP3A) system. Tacrolimus exposure increases after steroid tapering in many patients. The pregnane X receptor (PXR)-a mediator for CYP3A-has a steroid receptor and might regulate CYP3A5 activity depending on single nucleotide polymorphisms (SNPs) of CYP3A5 or PXR. This may contribute to differences in tacrolimus exposure after steroid tapering...
May 3, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29726981/dickkopf-3-in-aberrant-endothelial-secretome-triggers-renal-fibroblast-activation-and-endothelial-mesenchymal-transition
#17
Mark Lipphardt, Hassan Dihazi, Noo Li Jeon, Sina Dadafarin, Brian B Ratliff, David W Rowe, Gerhard A Müller, Michael S Goligorsky
Background: Our laboratory has previously demonstrated that Sirt1endo-/- mice show endothelial dysfunction and exaggerated renal fibrosis, whereas mice with silenced endothelial transforming growth factor beta (TGF-β) signaling are resistant to fibrogenic signals. Considering the fact that the only difference between these mutant mice is confined to the vascular endothelium, this indicates that secreted substances contribute to these contrasting responses. Methods: We performed an unbiased proteomic analysis of the secretome of renal microvascular endothelial cells (RMVECs) isolated from these two mutants...
May 3, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29726909/fatigue-anxiety-depression-and-quality-of-life-in-kidney-transplant-recipients-haemodialysis-patients-patients-with-a-haematological-malignancy-and-healthy-controls
#18
Marit S van Sandwijk, Doaa Al Arashi, Fons M van de Hare, J M Rolien van der Torren, Marie-José Kersten, Joost A Bijlsma, Ineke J M Ten Berge, Frederike J Bemelman
Background: The impact of haemodialysis (HD) and kidney transplantation on quality of life (QoL) is often underestimated due to a lack of comparative studies with other patient groups. Methods: We conducted a cross-sectional cohort study in 168 patients including HD patients, kidney transplant recipients (KTR), patients with a haematological malignancy either receiving chemotherapy or in remission and healthy controls. All participants completed the 36-item short form survey of health-related quality of life, the Checklist Individual Strength and the Hospital Anxiety and Depression Scale questionnaire...
May 2, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29718465/proteinase-3-and-myeloperoxidase-serotype-in-relation-to-demographic-factors-and-geographic-distribution-in-anti-neutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#19
Maria Weiner, Rune Bjørneklett, Zdenka Hrušková, Bruce Mackinnon, Caroline J Poulton, Leo Sindelar, Aladdin J Mohammad, Per Eriksson, Loreto Gesualdo, Duvuru Geetha, Matija Crnogorac, David Jayne, Susan L Hogan, Colin Geddes, Vladimir Tesar, Knut Aasarød, Mårten Segelmark
Background: In anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis, antigen specificity varies between myeloperoxidase (MPO) and proteinase 3 (PR3). This has been reported to vary in relation to age, gender, geography and extrarenal manifestations. However, studies are difficult to compare as criteria for inclusion vary. The aim of this study was to investigate the relationship between ANCA serotype, latitude, ultraviolet (UV) radiation levels, age, gender and renal function at diagnosis in a large study with uniform inclusion criteria...
April 30, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29718431/stabilization-of-cell-cell-junctions-by-active-vitamin-d-ameliorates-uraemia-induced-loss-of-human-endothelial-barrier-function
#20
Marc Vila Cuenca, Jan van Bezu, Rob H J Beelen, Marc G Vervloet, Peter L Hordijk
Background: Uraemia induces endothelial cell (EC) injury and impaired repair capacity, for which the underlying mechanism remains unclear. Active vitamin D (VD) may promote endothelial repair, however, the mechanism that mediates the effects of VD in chronic kidney disease are poorly understood. Thus, we investigated uraemia-induced endothelial damage and the protection against such damage by active VD. Methods: We applied electric cell-substrate impedance sensing (ECIS) to study real-time responses of human ECs exposed to pooled uraemic and non-uraemic plasma with or without the addition of active VD...
April 30, 2018: Nephrology, Dialysis, Transplantation
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