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Nephrology, Dialysis, Transplantation

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https://www.readbyqxmd.com/read/28992338/the-association-of-donor-and-recipient-age-with-graft-survival-in-paediatric-renal-transplant-recipients-in-a-european-society-for-paediatric-nephrology-european-renal-association-european-dialysis-and-transplantation-association-registry-study
#1
Nicholas C Chesnaye, Karlijn J van Stralen, Marjolein Bonthuis, Jaap W Groothoff, Jérôme Harambat, Franz Schaefer, Nur Canpolat, Arnaud Garnier, James Heaf, Huib de Jong, Søren Schwartz Sørensen, Burkhard Tönshoff, Kitty J Jager
Background: The impact of donor age in paediatric kidney transplantation is unclear. We therefore examined the association of donor-recipient age combinations with graft survival in children. Methods: Data for 4686 first kidney transplantations performed in 13 countries in 1990-2013 were extracted from the ESPN/ERA-EDTA Registry. The effect of donor and recipient age combinations on 5-year graft-failure risk, stratified by donor source, was estimated using Kaplan-Meier survival curves and Cox regression, while adjusting for sex, primary renal diseases with a high risk of recurrence, pre-emptive transplantation, year of transplantation and country...
September 15, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992141/metabolic-imaging-of-fatty-kidney-in-diabesity-validation-and-dietary-intervention
#2
Jacqueline T Jonker, Paul de Heer, Marten A Engelse, Evelien H van Rossenberg, Celine Q F Klessens, Hans J Baelde, Ingeborg M Bajema, Sietse Jan Koopmans, Paulo G Coelho, Trea C M Streefland, Andrew G Webb, Ilona A Dekkers, Ton J Rabelink, Patrick C N Rensen, Hildo J Lamb, Aiko P J de Vries
Background: Obesity and type 2 diabetes have not only been linked to fatty liver, but also to fatty kidney and chronic kidney disease. Since non-invasive tools are lacking to study fatty kidney in clinical studies, we explored agreement between proton magnetic resonance spectroscopy ( 1 H-MRS) and enzymatic assessment of renal triglyceride content (without and with dietary intervention). We further studied the correlation between fatty kidney and fatty liver. Methods: Triglyceride content in the renal cortex was measured by 1 H-MRS on a 7-Tesla scanner in 27 pigs, among which 15 minipigs had been randomized to a 7-month control diet, cafeteria diet (CAF) or CAF with low-dose streptozocin (CAF-S) to induce insulin-independent diabetes...
September 15, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28927232/association-between-intradialytic-central-venous-oxygen-saturation-and-ultrafiltration-volume-in-chronic-hemodialysis-patients
#3
Hanjie Zhang, Lili Chan, Anna Meyring-Wösten, Israel Campos, Priscila Preciado, Jeroen P Kooman, Frank M van der Sande, Doris Fuertinger, Stephan Thijssen, Peter Kotanko
Background: Cardiac disease is highly prevalent in hemodialysis (HD) patients. Decreased tissue perfusion, including cardiac, due to high ultrafiltration volumes (UFVs) is considered to be one of the drivers of cardiac dysfunction. While central venous oxygen saturation (ScvO 2 ) is frequently used as an indicator of cardiac output in non-uremic populations, the relationship of ScvO 2 and UFV in HD patients remains unclear. Our aim was to determine how intradialytic ScvO 2 changes associate with UFV...
September 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992319/atrial-fibrillation-in-kidney-transplant-recipients-is-there-a-place-for-the-novel-drugs
#4
Jolanta Malyszko, Paulina Lopatowska, Elzbieta Mlodawska, Dominika Musialowska, Jacek S Malyszko, Anna Tomaszuk-Kazberuk
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia of high clinical importance, occurring in 2% of the general population and in 19-24% in patients with chronic kidney disease. It is a well-known risk factor for cardiovascular morbidity and mortality. Kidney transplant recipients with a history of AF were associated with significantly higher rate of ischaemic strokes, graft failure and post-transplant mortality. AF occurs in over 7% of kidney transplant recipients in the first 3 years after transplantation and is associated with reduced graft and patient survival...
September 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992288/erlotinib-attenuates-the-progression-of-chronic-kidney-disease-in-rats-with-remnant-kidney
#5
Yasutaka Yamamoto, Masayuki Iyoda, Shohei Tachibana, Kei Matsumoto, Yukihiro Wada, Taihei Suzuki, Ken Iseri, Tomohiro Saito, Kei Fukuda-Hihara, Takanori Shibata
Background: Increasing evidence indicates that epidermal growth factor receptor (EGFR) has a pathogenic role in renal fibrosis. Currently no effective treatment can completely halt the progression of chronic kidney disease (CKD). This study was undertaken to investigate the renoprotective effects of erlotinib, a tyrosine kinase inhibitor that can block EGFR activity in the progression of CKD and the mechanisms involved. Methods: Sprague Dawley rats with 5/6 nephrectomy were administered either erlotinib or vehicle from 2 weeks after surgery and for a period of 8 weeks...
September 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992229/meta-analysis-of-cognitive-functioning-in-patients-following-kidney-transplantation
#6
Paras Joshee, Amanda G Wood, Eleri R Wood, Elizabeth A Grunfeld
Background: There is mixed evidence regarding the nature of cognitive function in patients who have undergone renal transplantation. The aim of this meta-analysis was to examine which cognitive domains are impacted following kidney transplantation and how performance compares with non-transplanted patients or healthy controls/normative data. Method: A systematic search was conducted using keywords within three databases (Embase, MEDLINE and PsychINFO), yielding 458 unique studies, 10 of which met the inclusion criteria...
September 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992129/development-and-validation-of-a-prediction-model-for-loss-of-physical-function-in-elderly-hemodialysis-patients
#7
Shingo Fukuma, Sayaka Shimizu, Ayumi Shintani, Tsukasa Kamitani, Tadao Akizawa, Shunichi Fukuhara
Background: Among aging hemodialysis patients, loss of physical function has become a major issue. We developed and validated a model of predicting loss of physical function among elderly hemodialysis patients. Methods: We conducted a cohort study involving maintenance hemodialysis patients  ≥65 years of age from the Dialysis Outcomes and Practice Pattern Study in Japan. The derivation cohort included 593 early phase (1996-2004) patients and the temporal validation cohort included 447 late-phase (2005-12) patients...
September 5, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992073/urinary-peptide-biomarker-panel-associated-with-an-improvement-in-estimated-glomerular-filtration-rate-in-chronic-kidney-disease-patients
#8
Katerina Markoska, Martin Pejchinovski, Claudia Pontillo, Petra Zürbig, Lotte Jacobs, Andrew Smith, Jelka Masin-Spasovska, Olivera Stojceva-Taneva, Momir Polenakovic, Fulvio Magni, Harald Mischak, Goce Spasovski
Background: An improvement in the glomerular filtration rate (GFR) of chronic kidney disease patients has been an underestimated clinical outcome. Although this may be considered as an unexpected disease course, it may provide some insights into possible mechanisms underlying disease remission and/or regression. Therefore, our aim was to identify urinary peptide biomarkers associated with an improvement in estimated GFR (eGFR) over time and to improve patient stratification. Methods: Capillary electrophoresis coupled with mass spectrometry (CE-MS) was employed to evaluate the urine peptidome of patients with different types of renal diseases...
September 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992354/obesity-and-synergistic-risk-factors-for-chronic-kidney-disease-in-african-american-adults-the-jackson-heart-study
#9
Robert E Olivo, Clemontina A Davenport, Clarissa J Diamantidis, Nrupen A Bhavsar, Crystal C Tyson, Rasheeda Hall, Aurelian Bidulescu, Bessie Young, Stanford E Mwasongwe, Jane Pendergast, L Ebony Boulware, Julia J Scialla
Background: African Americans are at high risk for chronic kidney disease (CKD). Obesity may increase the risk for CKD by exacerbating features of the metabolic syndrome and promoting glomerular hyperfiltration. Whether other factors also affecting these pathways may amplify or mitigate obesity-CKD associations has not been investigated. Methods: We studied interactions between obesity and these candidate factors in 2043 African Americans without baseline kidney disease enrolled in the Jackson Heart Study...
August 30, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992279/targeting-new-cellular-disease-pathways-in-autosomal-dominant-polycystic-kidney-disease
#10
Ming-Yang Chang, Albert C M Ong
Autosomal dominant polycystic kidney disease (ADPKD) is the most common inherited cause of end-stage renal failure. Understanding the molecular and cellular pathogenesis of ADPKD could help to identify new targets for treatment. The classic cellular cystic phenotype includes changes in proliferation, apoptosis, fluid secretion, extracellular matrix and cilia function. Hoever, recent research, suggests that the cellular cystic phenotype could be broader and that changes, such as altered metabolism, autophagy, inflammation, oxidative stress and epigenetic modification, could play important roles in the processes of cyst initiation, cyst growth or disease progression...
August 29, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992263/desphospho-uncarboxylated-matrix-gla-protein-is-a-novel-circulating-biomarker-predicting-deterioration-of-renal-function-in-the-general-population
#11
Fang-Fei Wei, Sander Trenson, Lutgarde Thijs, Qi-Fang Huang, Zhen-Yu Zhang, Wen-Yi Yang, Paula Moliterno, Karel Allegaert, José Boggia, Stefan Janssens, Peter Verhamme, Cees Vermeer, Jan A Staessen
Background: Recent studies showing an inverse association between estimated glomerular filtration rate (eGFR), a microvascular trait, and inactive desphospho-uncarboxylated matrix Gla protein (dp-ucMGP) support the hypothesis that after vitamin K-dependent activation, matrix Gla protein (MGP) is renoprotective, but these were limited by their cross-sectional design. Methods: In 1009 randomly recruited Flemish (50.6% women), we assessed the association between eGFR and plasma dp-ucMGP, using multivariable-adjusted analyses...
August 25, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992124/impact-of-trajectories-of-abdominal-aortic-calcification-over-2-years-on-subsequent-mortality-a-10-year-longitudinal-study
#12
Hiroki Inoue, Sayaka Shimizu, Keita Watanabe, Yasuhiro Kamiyama, Hitomi Shima, Azuna Nakase, Hironori Ishida, Noriaki Kurita, Shingo Fukuma, Shunichi Fukuhara, Yukari Yamada
Background: Although both the presence and progression over time of vascular calcification have been shown to independently predict cardiovascular disease and mortality in chronic dialysis patients, the impact of the pattern of accumulation of abdominal aortic calcification on mortality has not yet been investigated. Methods: We conducted a longitudinal study at a dialysis hospital in Hokkaido, Japan from 2005 to 2014. An abdominal calcification index (ACI) was generated for 396 patients from their annual abdominal computed tomography (CT) scans...
August 25, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992320/effect-of-human-leukocyte-antigen-mismatching-on-the-outcomes-of-pediatric-kidney-transplantation-a-systematic-review-and-meta-analysis
#13
Xinmiao Shi, Rui Liu, Xinfang Xie, Jicheng Lv, Wenke Han, Xuhui Zhong, Jie Ding
Background: Kidney transplantation is regarded as the optimal treatment for pediatric patients with end-stage renal disease. Here, we address a controversial topic in pediatric kidney transplantation by performing a quantitative evaluation of the effect of human leukocyte antigen (HLA) mismatching on the outcomes of pediatric kidney transplantation. Methods: We systematically searched PubMed, EMBASE and the Cochrane Library from their inception to 31 December 2016 for cohort studies assessing the risk ratio (RR) of HLA mismatching on pediatric kidney transplantation...
August 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992257/glomerular-function-in-relation-to-circulating-adhesion-molecules-and-inflammation-markers-in-a-general-population
#14
Ying-Mei Feng, Lutgarde Thijs, Zhen-Yu Zhang, Wen-Yi Yang, Qi-Fang Huang, Fang-Fei Wei, Tatiana Kuznetsova, Ann-Marie Jennings, Christian Delles, Rachael Lennox, Peter Verhamme, Anna Dominiczak, Jan A Staessen
Background: Inflammation is a hallmark of chronic kidney disease (CKD) and stimulates glomerular expression of vascular adhesion molecules (VCAMs). We investigated in a general population whether estimated glomerular filtration rate (eGFR) is associated with circulating adhesion molecules, inflammation markers or both. Methods: We measured serum levels of five adhesion molecules [VCAM-1, intracellular adhesion molecule-1 (ICAM-1), P-selectin, E-selectin and monocyte chemoattractant protein-1 (MCP-1)] and seven inflammation markers [C-reactive protein (CRP), neutrophil gelatinase-associated lipocalin (NGAL), tumour necrosis factor receptor 1 (TNF-R1), TNF-α, interleukin 6 (IL-6), IL-8 and vascular endothelial growth factor] in 1338 randomly recruited people (50...
August 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992097/association-of-serum-albumin-levels-with-kidney-function-decline-and-incident-chronic-kidney-disease-in-elders
#15
Joshua Lang, Ronit Katz, Joachim H Ix, Orlando M Gutierrez, Carmen A Peralta, Chirag R Parikh, Suzanne Satterfield, Snezana Petrovic, Prasad Devarajan, Michael Bennett, Linda F Fried, Steven R Cummings, Mark J Sarnak, Michael G Shlipak
Background: Previous studies in HIV-infected individuals have demonstrated serum albumin to be strongly associated with kidney function decline, independent of urine albumin and inflammatory markers. Lower serum albumin concentrations may be an under-appreciated risk factor for kidney function decline in elders. Methods: We performed a cohort analysis in the Health Aging and Body Composition Study, a cohort of well-functioning, bi-racial, community-dwelling elders between the age of 70 and 79 years...
August 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992067/the-uremic-toxin-indoxyl-sulfate-interferes-with-iron-metabolism-by-regulating-hepcidin-in-chronic-kidney-disease
#16
Hirofumi Hamano, Yasumasa Ikeda, Hiroaki Watanabe, Yuya Horinouchi, Yuki Izawa-Ishizawa, Masaki Imanishi, Yoshito Zamami, Kenshi Takechi, Licht Miyamoto, Keisuke Ishizawa, Koichiro Tsuchiya, Toshiaki Tamaki
Background: Hepcidin secreted by hepatocytes is a key regulator of iron metabolism throughout the body. Hepcidin concentrations are increased in chronic kidney disease (CKD), contributing to abnormalities in iron metabolism. Levels of indoxyl sulfate (IS), a uremic toxin, are also elevated in CKD. However, the effect of IS accumulation on iron metabolism remains unclear. Methods: We used HepG2 cells to determine the mechanism by which IS regulates hepcidin concentrations...
August 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992280/plasma-biomarkers-improve-prediction-of-diabetic-kidney-disease-in-adults-with-type-1-diabetes-over-a-12-year-follow-up-cacti-study
#17
Petter Bjornstad, Laura Pyle, David Z I Cherney, Richard J Johnson, Rachel Sippl, Randy Wong, Marian Rewers, Janet K Snell-Bergeon
Background: The objective of the study was to determine whether plasma biomarkers of kidney injury improve the prediction of diabetic kidney disease (DKD) in adults with type 1 diabetes (T1D) over a period of 12 years. Methods: Participants ( n  = 527, 53% females) in the Coronary Artery Calcification in T1D (CACTI) Study were examined during 2002-04, at a mean (± standard deviation) age of 39.6 ± 9.0 years with 24.8 years as the median duration of diabetes...
August 21, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992075/does-kidney-donor-risk-index-implementation-lead-to-the-transplantation-of-more-and-higher-quality-donor-kidneys
#18
Ester Philipse, Alison P K Lee, Bart Bracke, Vera Hartman, Thierry Chapelle, Geert Roeyen, Kathleen de Greef, Dirk K Ysebaert, Gerda van Beeumen, Marie-Madeleine Couttenye, Amaryllis H Van Craenenbroeck, Rachel Hellemans, Jean-Louis Bosmans, Daniel Abramowicz
Background: The Kidney Donor Risk Index (KDRI) is a quantitative evaluation of the quality of donor organs and is implemented in the US allocation system. This single-centre study investigates whether the implementation of the KDRI in our decision-making process to accept or decline an offered deceased donor kidney, increases our acceptance rate. Methods: From April 2015 until December 2016, we prospectively calculated the KDRI for all deceased donor kidney offers allocated by Eurotransplant to our centre...
August 21, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992343/serum-to-dialysate-potassium-gradient-and-its-association-with-short-term-outcomes-in-hemodialysis-patients
#19
Steven M Brunelli, David M Spiegel, Charles Du Mond, Nina Oestreicher, Wolfgang C Winkelmayer, Csaba P Kovesdy
Background: A high serum-to-dialysate potassium (K + ) gradient at the start of dialysis leads to rapid lowering of serum K + and may confer a greater risk of adverse events. Here, we examined the near-term association of K + gradient with clinical outcomes. Methods: This retrospective (2010-11) event-based study considered 830 741 patient-intervals, each defined by a pre-dialysis measurement of serum K + made among adult Medicare Parts A and B enrollees who received in-center hemodialysis on a Monday/Wednesday/Friday schedule at a large US dialysis organization...
August 19, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28992339/stat3-inhibition-attenuates-the-progressive-phenotypes-of-alport-syndrome-mouse-model
#20
Tsubasa Yokota, Kohei Omachi, Mary Ann Suico, Misato Kamura, Haruka Kojima, Ryosuke Fukuda, Keishi Motomura, Keisuke Teramoto, Shota Kaseda, Jun Kuwazuru, Toru Takeo, Naomi Nakagata, Tsuyoshi Shuto, Hirofumi Kai
Background: Alport syndrome (AS) is a hereditary, progressive nephritis caused by mutation of type IV collagen. Previous studies have shown that activation of signal transducer and activator of transcription 3 (STAT3) exacerbates other renal diseases, but whether STAT3 activation exacerbates AS pathology is still unknown. Here we aim to investigate the involvement of STAT3 in the progression of AS. Method: Phosphorylated STAT3 expression was assessed by immunoblotting analysis of kidneys and glomeruli of an AS mouse model ( Col4a5 G5X mutant)...
August 17, 2017: Nephrology, Dialysis, Transplantation
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