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American Journal of Nephrology

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https://www.readbyqxmd.com/read/29779033/genome-wide-association-study-of-renal-function-traits-results-from-the-japan-multi-institutional-collaborative-cohort-study
#1
Asahi Hishida, Masahiro Nakatochi, Masato Akiyama, Yoichiro Kamatani, Takeshi Nishiyama, Hidemi Ito, Isao Oze, Yuichiro Nishida, Megumi Hara, Naoyuki Takashima, Tanvir Chowdhury Turin, Miki Watanabe, Sadao Suzuki, Rie Ibusuki, Ippei Shimoshikiryo, Yohko Nakamura, Haruo Mikami, Hiroaki Ikezaki, Norihiro Furusyo, Kiyonori Kuriki, Kaori Endoh, Teruhide Koyama, Daisuke Matsui, Hirokazu Uemura, Kokichi Arisawa, Tae Sasakabe, Rieko Okada, Sayo Kawai, Mariko Naito, Yukihide Momozawa, Michiaki Kubo, Kenji Wakai
BACKGROUND: Chronic kidney disease (CKD) is a rapidly growing, worldwide public health problem. Recent advances in genome-wide-association studies (GWAS) revealed several genetic loci associated with renal function traits worldwide. METHODS: We investigated the association of genetic factors with the levels of serum creatinine (SCr) and the estimated glomerular filtration rate (eGFR) in Japanese population-based cohorts analyzing the GWAS imputed data with 11,221 subjects and 12,617,569 variants, and replicated the findings with the 148,829 hospital-based Japanese subjects...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779032/kidney-disease-in-women-is-associated-with-disadvantaged-childhood-socioeconomic-position
#2
Mark Canney, Siobhan Leahy, Siobhan Scarlett, Rose Anne Kenny, Mark A Little, Conall M O'Seaghdha, Cathal McCrory
BACKGROUND: Socioeconomic position (SEP) is an important determinant of health and it is dynamic across the entire lifespan. We sought to investigate the relationship between life-course SEP and chronic kidney disease (CKD) using 3 conceptual models: critical period, pathway and accumulation. METHODS: Cross-sectional analysis of 4,996 participants from The Irish Longitudinal Study on Ageing, a nationally representative cohort of community-dwelling adults aged ≥50 years...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779030/high-intraperitoneal-interleukin-6-levels-predict-peritonitis-in-peritoneal-dialysis-patients-a-prospective-cohort-study
#3
Xiaoxiao Yang, Yijing Tong, Hao Yan, Zhaohui Ni, Jiaoqi Qian, Wei Fang
BACKGROUND: To evaluate the predictive value of dialysate interleukin-6 (IL-6) representing local subclinical intraperitoneal inflammation for the development of peritonitis in continuous ambulatory peritoneal dialysis (CAPD) patients. METHODS: Stable prevalent CAPD patients were enrolled in this prospective study. IL-6 concentration in the overnight effluent was determined and expressed as the IL-6 appearance rate (IL-6AR). Patients were divided into 2 groups according to the median of IL-6AR and prospectively followed up until the first episode of peritonitis, cessation of PD, or the end of the study (December 30, 2017)...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779029/low-plasma-hydrogen-sulfide-is-associated-with-impaired-renal-function-and-cardiac-dysfunction
#4
Qing Kuang, Ning Xue, Jing Chen, Ziyan Shen, Xiaomeng Cui, Yi Fang, Xiaoqiang Ding
BACKGROUND: Chronic kidney disease (CKD) has been proposed to associate with decreased hydrogen sulfide (H2S) level. Nevertheless, the role of H2S in the pathogenesis of CKD has not been fully investigated. Our study aimed to investigate the plasma level of endogenous H2S in patients with different stages of CKD, and to identify the role of H2S in the progression of CKD and its relationship with cardiovascular diseases. METHODS: A total of 157 non-dialysis CKD patients were recruited in our study, with 37 age- and sex-matched healthy individuals as control...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779028/dietary-changes-involving-bifidobacterium-longum-and-other-nutrients-delays-chronic-kidney-disease-progression
#5
Yuko Iwashita, Masaki Ohya, Mitsuru Yashiro, Tomohiro Sonou, Kazuki Kawakami, Yuri Nakashima, Takuro Yano, Yu Iwashita, Toru Mima, Shigeo Negi, Kaoru Kubo, Koichi Tomoda, Toshitaka Odamaki, Takashi Shigematsu
BACKGROUND: Recent studies suggest that prebiotic and/or probiotic treatments ameliorate kidney function in humans and animals by improving the gut environment. However, the gut microbiota and kidney disease interactions remain to be determined. This study investigated whether synbiotics modulate the gut microbiota and ameliorate kidney function using a rat model of chronic kidney disease (CKD). As uremic toxins are associated with CKD-related mineral and bone disorder, the secondary aim was to evaluate the relationship between synbiotics and secondary hyperparathyroidism (SHPT)...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779027/association-of-pre-end-stage-renal-disease-hemoglobin-with-early-dialysis-outcomes
#6
Carola-Ellen Kleine, Melissa Soohoo, Omesh N Ranasinghe, Christina Park, Maria V Marroquin, Yoshitsugu Obi, Connie M Rhee, Hamid Moradi, Csaba P Kovesdy, Kamyar Kalantar-Zadeh, Elani Streja
BACKGROUND: Incident hemodialysis patients have a high mortality risk within the first months after dialysis initiation. Pre-end-stage renal disease (ESRD) factors like anemia management may impact early post-ESRD outcomes. Therefore, we evaluated the impact of pre-ESRD hemoglobin (Hgb) and pre-ESRD Hgb slope on post-ESRD mortality and hospitalization outcomes. METHODS: The study included 31,472 veterans transitioning to ESRD. Using Cox and negative binomial regression models, we evaluated the association of pre-ESRD Hgb and Hgb slope with 12-month post-ESRD all-cause and cardiovascular mortality and hospitalization rates using 4 levels of hierarchical multivariable adjustment, including erythropoietin use and kidney decline in slope models...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779026/uromodulin-mrna-from-urinary-extracellular-vesicles-correlate-to-kidney-function-decline-in-type-2-diabetes-mellitus
#7
Cindy M Yamamoto, Taku Murakami, Melanie L Oakes, Masato Mitsuhashi, Colleen Kelly, Robert R Henry, Kumar Sharma
BACKGROUND: Extracellular vesicles (EVs) enclose mRNA derived from their cell of origin and are considered a source of potential biomarkers. We examined urinary EV mRNA from individuals with diabetic kidney disease (DKD), chronic kidney disease, type 2 diabetes (T2DM), and obese and healthy controls to determine if such biomarkers had the potential to classify kidney disease and predict patients at higher risk of renal function decline. METHODS: A total of 242 participants enrolled in this study...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779025/differential-determinants-of-tubular-phosphate-reabsorption-insights-on-renal-excretion-of-phosphates-in-kidney-disease
#8
Nahid Tabibzadeh, Romuald Mentaverri, Maïté Daroux, Rafik Mesbah, Alexia Delpierre, Jean-Gabriel Paul, Valérie Deken, Ziad A Massy, Pierre Bataille
We assessed the tubular reabsorption of phosphate (TRP) and maximal renal threshold for phosphate reabsorption to glomerular filtration rate (TmPi/GFR) and their determinants in 64 stages 2-4 chronic kidney disease (CKD) patients in order to define the early changes in phosphate metabolism in CKD. In multivariable analysis, TmPi/GFR correlates were estimated GFR (eGFR), intact parathyroid hormone (iPTH), and hemoglobin (R2 = 0.417), while TRP correlates were eGFR, iPTH, 24-h phosphaturia, and calcitriol (R2 = 0...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779024/a-randomized-clinical-trial-of-metformin-to-treat-autosomal-dominant-polycystic-kidney-disease
#9
Stephen L Seliger, Kaleab Z Abebe, Kenneth R Hallows, Dana C Miskulin, Ronald D Perrone, Terry Watnick, Kyongtae Tae Bae
BACKGROUND: Metformin inhibits cyclic AMP generation and activates AMP-activated protein kinase (AMPK), which inhibits the cystic fibrosis transmembrane conductance regulator and Mammalian Target of Rapamycin pathways. Together these effects may reduce cyst growth in autosomal dominant polycystic kidney disease (ADPKD). METHODS: A phase II, double-blinded randomized placebo-controlled trial of 26 months duration. Participants will include nondiabetic adults (n = 96) aged 18-60 years, with an estimated glomerular filtration rate (eGFR) ≥50 mL/min/1...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29779023/parathyroid-hormone-fibroblast-growth-factor-23-and-parameters-of-phosphate-reabsorption
#10
Kenneth R Phelps, Darius L Mason
BACKGROUND: The serum phosphorus concentration ([P]s) is the sum of EP/Ccr and TRP/Ccr, where Ccr is creatinine clearance and EP and TRP are rates of excretion and reabsorption of phosphate. In chronic kidney disease (CKD), parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23) mediate reduction of TRP/Ccr, and [PTH] and [FGF23] are linear functions of EP/Ccr. If controls and patients with CKD are considered together, TRP/Ccr is a hyperbolic function of EP/Ccr. Given these observations, we hypothesized that hyperbolas would describe relationships of phosphate reabsorption to [PTH] and [FGF23]...
May 18, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29698955/serum-uromodulin-a-biomarker-of-long-term-kidney-allograft-failure
#11
Andrew Bostom, Dominik Steubl, Pranav S Garimella, Nora Franceschini, Mary B Roberts, Andreas Pasch, Joachim H Ix, Katherine R Tuttle, Anastasia Ivanova, Theresa Shireman, S Joseph Kim, Reginald Gohh, Daniel E Weiner, Andrew S Levey, Chi-Yuan Hsu, John W Kusek, Charles B Eaton
BACKGROUND: Uromodulin is a kidney-derived glycoprotein and putative tubular function index. Lower serum uromodulin was recently associated with increased risk for kidney allograft failure in a preliminary, longitudinal single-center -European study involving 91 kidney transplant recipients (KTRs). METHODS: The Folic Acid for Vascular Outcome Reduction in Transplantation (FAVORIT) trial is a completed, large, multiethnic controlled clinical trial cohort, which studied chronic, stable KTRs...
April 26, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29698936/response-predictors-to-calcineurin-inhibitors-in-patients-with-primary-membranous-nephropathy
#12
Xiaofang Yu, Jieru Cai, Xiaoyan Jiao, Shu Zhang, Hong Liu, Xiaoqiang Ding
BACKGROUND: Currently, there is an urgent need to find ways of identifying primary membranous nephropathy (PMN) patients who are likely to benefit from calcineurin inhibitors (CNI) or who are resistant to them. In this study, we employed nano-HPLC-MS/MS analysis to identify serum biomarkers that predict the clinical response to CNI therapy in PMN patients. METHODS: The endpoint was complete remission (CR) after CNI treatment. PMN patients were grouped into no-remission (NR) or CR groups to screen predictive candidates using the nano-HPLC-MS/MS analysis...
April 26, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29694953/obestatin-a-ghrelin-cognate-protein-and-clinical-outcomes-in-hemodialysis-patients
#13
Carmine Zoccali, Francesca Mallamaci
No abstract text is available yet for this article.
April 25, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29694945/serum-obestatin-a-biomarker-of-cardiovascular-and-all-cause-mortality-in-hemodialysis-patients
#14
Ilia Beberashvili, Anna Katkov, Inna Sinuani, Ada Azar, Gregory Shapiro, Leonid Feldman, Oleg Gorelik, Kobi Stav, Shai Efrati
BACKGROUND: Recent experimental studies have suggested that obestatin, a proposed anorexigenic gut hormone and a physiological opponent of acyl-ghrelin, has protective cardiovascular effects. We tested the hypothesis that obestatin is independent of inflammatory mediators and/or acyl-ghrelin in predicting outcomes of the maintenance hemodialysis (MHD) population. METHODS: It was a 6-year cohort study on 261 MHD patients. Obestatin, acyl-ghrelin, adipokines (leptin and adiponectin), markers of inflammation and nutrition, prospective all-cause and cardiovascular mortality were studied...
April 25, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29621752/fibroblast-growth-factor-23-a-biomarker-of-kidney-function-decline
#15
David A Drew, Ronit Katz, Stephen Kritchevsky, Joachim H Ix, Michael G Shlipak, Anne B Newman, Andy Hoofnagle, Linda Fried, Mark J Sarnak, Orlando M Gutierrez
BACKGROUND: Fibroblast growth factor 23 (FGF-23) is a hormone that regulates phosphorus levels and vitamin D metabolism. Previous studies have shown FGF-23 to be a risk factor for incident end-stage renal disease; however, there are less data on the association of FGF-23 with earlier kidney-related outcomes. METHODS: Serum FGF-23 was assayed using an intact ELISA assay in 2,496 participants of the Healthy Aging and Body Composition Study, a cohort of well-functioning older adults...
April 5, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29614496/nail-in-the-coffin-for-fibroblast-growth-factor-23-as-a-predictor-of-kidney-function-decline
#16
Anna J Jovanovich, Michel B Chonchol
No abstract text is available yet for this article.
April 3, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29597208/hypoxia-inducible-factor-1%C3%AE-hif-1%C3%AE-angiopoietin-2-ang-2-and-endocan-novel-biomarkers-of-disease-progression-involving-polycystic-kidney-disease
#17
Frederic F Rahbari-Oskoui, Arlene B Chapman
No abstract text is available yet for this article.
March 29, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29597186/levels-of-endocan-angiopoietin-2-and-hypoxia-inducible-factor-1a-in-patients-with-autosomal-dominant-polycystic-kidney-disease-and-different-levels-of-renal-function
#18
Vassilios Raptis, Constantinos Bakogiannis, Charalampos Loutradis, Afroditi K Boutou, Ioanna Lampropoulou, Elena Intzevidou, Athanasios Sioulis, Elias Balaskas, Pantelis A Sarafidis
BACKGROUND: Endothelial dysfunction leading to unbalanced vasoconstriction and ischemia of renal parenchyma is increasingly proposed as an alternative pathway of renal damage in autosomal dominant polycystic kidney disease (ADPKD). However, human studies investigating the evolution of such phenomena are limited. This study investigated the levels of emerging biomarkers of endothelial function, angiogenesis and hypoxia, in ADPKD patients with different renal function. METHODS: The study population consisted of three groups: 26 ADPKD patients with impaired renal function (Group A; estimated glomerular filtration rate [eGFR] 45-70 mL/min/1...
March 29, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29587251/pregnancy-outcomes-in-french-hemodialysis-patients
#19
Gabrielle Normand, Xiaoli Xu, Marine Panaye, Anne Jolivot, Sandrine Lemoine, Fitsum Guebre-Egziabher, Evelyne Decullier, Sylvie Bin, Muriel Doret, Laurent Juillard
BACKGROUND: Pregnancy in hemodialysis (HD) women is a rare event and often associated with maternal and fetal complications. Scarcity of available data from large cohorts impedes fair medical counseling. METHODS: This is a descriptive, retrospective, multi-centric study. Pregnant women on HD during the period from 1985 to 2015 in France were included. The primary outcome was a living infant discharged from hospital, while secondary outcomes included gestational age and birth weight...
March 27, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29621747/changes-in-biomarker-profile-and-left-ventricular-hypertrophy-regression-results-from-the-frequent-hemodialysis-network-trials
#20
Christopher T Chan, George A Kaysen, Gerald J Beck, Minwei Li, Joan Lo, Michael V Rocco, Alan S Kliger
BACKGROUND: Regression of left ventricular hypertrophy (LVH) is feasible with more frequent hemodialysis (HD). We aimed to ascertain pathways associated with regression of left ventricular mass (LVM) in patients enrolled in the Frequent HD Network (FHN) trials. METHODS: This was a post hoc observational cohort study. We hypothesized LVH regression with frequent HD was associated with a different cardiovascular biomarker profile. Regressors were defined as patients who achieved a reduction of more than 10% in LVM at 12 months...
2018: American Journal of Nephrology
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