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Chronic kidney disease-mineral and bone disease

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https://www.readbyqxmd.com/read/28720774/a-novel-fluorescent-probe-based-flow-cytometric-assay-for-mineral-containing-nanoparticles-in-serum
#1
Edward R Smith, Tim D Hewitson, Michael M X Cai, Parisa Aghagolzadeh, Matthias Bachtler, Andreas Pasch, Stephen G Holt
Calciprotein particles, nanoscale aggregates of insoluble mineral and binding proteins, have emerged as potential mediators of phosphate toxicity in patients with Chronic Kidney Disease. Although existing immunochemical methods for their detection have provided compelling data, these approaches are indirect, lack specificity and are subject to a number of other technical and theoretical shortcomings. Here we have developed a rapid homogeneous fluorescent probe-based flow cytometric method for the detection and quantitation of individual mineral-containing nanoparticles in human and animal serum...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716974/heart-failure-in-patients-with-kidney-disease
#2
REVIEW
Courtney Tuegel, Nisha Bansal
Heart failure (HF) is a leading cause of morbidity and mortality in patients with chronic kidney disease (CKD), and the population of CKD patients with concurrent HF continues to grow. The accurate diagnosis of HF is challenging in patients with CKD in part due to a lack of validated imaging and biomarkers specifically in this population. The pathophysiology between the heart and the kidneys is complex and bidirectional. Patients with CKD have greater prevalence of traditional HF risk factors as well as unique kidney-specific risk factors including malnutrition, acid-base alterations, uraemic toxins, bone mineral changes, anemia and myocardial stunning...
July 17, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28710615/aldosterone-antagonist-therapy-and-its-relationship-with-inflammation-fibrosis-thrombosis-mineral-bone-disorder-and-cardiovascular-complications-in-peritoneal-dialysis-pd-patients
#3
Rafał Donderski, Paweł Stróżecki, Beata Sulikowska, Magdalena Grajewska, Ilona Miśkowiec, Anna Stefańska, Joanna Siódmiak, Grażyna Odrowąż-Sypniewska, Jacek Manitius
BACKGROUND: High aldosterone level may contribute to pathogenesis of hypertension, vessels damage and cardiovascular system deterioration in chronic kidney disease patients. Besides its classical action via mineralocorticoid receptor, aldosterone is also involved in cell growth, inflammation, oxidative stress, endothelial dysfunction and exerts fibroproliferative effects. The aim of the study was to assess whether aldosterone antagonist treatment may influence serum level of inflammatory, fibrosis, thrombosis and mineral-bone metabolism markers in peritoneal dialysis (PD) patients and blood pressure, aortic stiffness, echocardiographic indices after 12 months of treatment...
July 14, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28706946/chronic-kidney-disease-mineral-and-bone-disorder
#4
EDITORIAL
Wen-Chin Lee, Xiong-Zhong Ruan, You-Ying Chau, Jin-Bor Chen
No abstract text is available yet for this article.
2017: BioMed Research International
https://www.readbyqxmd.com/read/28704404/pa21-a-novel-phosphate-binder-improves-renal-osteodystrophy-in-rats-with-chronic-renal-failure
#5
Atsushi Yaguchi, Satoshi Tatemichi, Hiroo Takeda, Mamoru Kobayashi
The effects of PA21, a novel iron-based and non-calcium-based phosphate binder, on hyperphosphatemia and its accompanying bone abnormality in chronic kidney disease-mineral and bone disorder (CKD-MBD) were evaluated. Rats with adenine-induced chronic renal failure (CRF) were prepared by feeding them an adenine-containing diet for four weeks. They were also freely fed a diet that contained PA21 (0.5, 1.5, and 5%), sevelamer hydrochloride (0.6 and 2%) or lanthanum carbonate hydrate (0.6 and 2%) for four weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28699886/interleukin-1-inhibition-chronic-kidney-disease-mineral-and-bone-disorder-and-physical-function%C3%A2
#6
Kristen L Nowak, Adriana Hung, Talat Alp Ikizler, Heather Farmer-Bailey, Natjalie Salas-Cruz, Sudipa Sarkar, Andrew Hoofnagle, Zhiying You, Michel Chonchol
OBJECTIVE: Epidemiologic studies have suggested a link between chronic systemic inflammation and chronic kidney disease-mineral and bone disorder (CKD-MBD). Additionally, declining renal function is associated with worsening physical and cognitive function, which may potentially be explained by systemic inflammation, CKD-MBD, or both. We hypothesized that inhibiting inflammation with an interleukin-1 (IL-1) trap would improve markers of CKD-MBD as well as physical/cognitive function in patients with moderate-to-severe CKD...
July 12, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28688892/vascular-ossification-pathology-mechanisms-and-clinical-implications
#7
Michael A Fuery, Lusha Liang, Frederick S Kaplan, Emile R Mohler
In recent years, the mechanisms and clinical significance of vascular calcification have been increasingly investigated. For over a century, however, pathologists have recognized that vascular calcification is a form of heterotopic ossification. In this review, we aim to describe the pathology and molecular processes of vascular ossification, to characterize its clinical significance and treatment options, and to elucidate areas that require further investigation. The molecular mechanisms of vascular ossification involve the activation of regulators including bone morphogenic proteins and chondrogenic transcription factors and the loss of mineralization inhibitors like fetuin-A and pyrophosphate...
July 5, 2017: Bone
https://www.readbyqxmd.com/read/28675610/vitamin-d-a-modulator-of-musculoskeletal-health-in-chronic-kidney-disease
#8
REVIEW
Pablo Molina, Juan J Carrero, Jordi Bover, Philippe Chauveau, Sandro Mazzaferro, Pablo Ureña Torres
The spectrum of activity of vitamin D goes beyond calcium and bone homeostasis, and growing evidence suggests that vitamin D contributes to maintain musculoskeletal health in healthy subjects as well as in patients with chronic kidney disease (CKD), who display the combination of bone metabolism disorder, muscle wasting, and weakness. Here, we review how vitamin D represents a pathway in which bone and muscle may interact. In vitro studies have confirmed that the vitamin D receptor is present on muscle, describing the mechanisms whereby vitamin D directly affects skeletal muscle...
July 3, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28674323/newly-developed-rat-model-of-chronic-kidney-disease-mineral-bone-disorder
#9
Kentaro Watanabe, Hideki Fujii, Shunsuke Goto, Kentaro Nakai, Keiji Kono, Shuhei Watanabe, Masami Shinohara, Shinichi Nishi
AIM: Chronic kidney disease-mineral bone disorder (CKD-MBD) is associated with all-cause and cardiovascular morbidity and mortality in patients with CKD. Thus, elucidating its pathophysiological mechanisms is essential for improving the prognosis. We evaluated characteristics of CKD-MBD in a newly developed CKD rat model. METHODS: We used male Sprague-Dawley (SD) rats and spontaneously diabetic Torii (SDT) rats, which are used as models for nonobese type 2 diabetes...
July 1, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28667458/variability-in-measures-of-mineral-metabolism-in-children-on-hemodialysis-impact-on-clinical-decision-making
#10
Aadil Kakajiwala, Thomas O Jemielita, Lawrence Copelovitch, Mary B Leonard, Susan L Furth, Amy York, Maryjane Benton, Andrew N Hoofnagle, Kimberly Windt, Karen Merrigan, April Lederman, Michelle R Denburg
BACKGROUND: Variability in measures of mineral metabolism has not been studied in pediatric end stage kidney disease. We sought to determine the intra-individual variability in measures of mineral metabolism in children on hemodialysis (HD) and its impact on clinical decision-making. METHODS: We conducted a prospective single-center study of children (3.6-17.3 years old) on chronic HD. Serial twice weekly measures of serum calcium, phosphate and intact parathyroid hormone (PTH), as well as weekly measures of fibroblast growth factor 23 (FGF23) and vitamin D metabolites, were obtained over a 12-week period in 10 children...
June 30, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28646995/executive-summary-of-the-2017-kdigo-chronic-kidney%C3%A2-disease-mineral-and-bone-disorder-ckd-mbd-guideline-update-what-s-changed-and-why-it-matters
#11
Markus Ketteler, Geoffrey A Block, Pieter Evenepoel, Masafumi Fukagawa, Charles A Herzog, Linda McCann, Sharon M Moe, Rukshana Shroff, Marcello A Tonelli, Nigel D Toussaint, Marc G Vervloet, Mary B Leonard
The KDIGO 2017 Clinical Practice Guideline Update for the Diagnosis, Evaluation, Prevention, and Treatment of CKD-MBD represents a selective update of the prior CKD-MBD Guideline published in 2009. This update, along with the 2009 publication, is intended to assist the practitioner caring for adults and children with chronic kidney disease (CKD), those on chronic dialysis therapy, or individuals with a kidney transplant. This review highlights key aspects of the 2017 CKD-MBD Guideline Update, with an emphasis on the rationale for the changes made to the original guideline document...
July 2017: Kidney International
https://www.readbyqxmd.com/read/28645983/the-effect-of-magnesium-supplementation-on-vascular-calcification-in-chronic-kidney-disease-a-randomised-clinical-trial-magical-ckd-essential-study-design-and-rationale
#12
Iain Bressendorff, Ditte Hansen, Morten Schou, Charlotte Kragelund, Lisbet Brandi
INTRODUCTION: Chronic kidney disease (CKD) is associated with an increased risk of cardiovascular disease and mortality, which is thought to be caused by increased propensity towards vascular calcification (VC). Magnesium (Mg) inhibits phosphate-induced VC in vitro and in animal models and serum Mg is inversely associated with cardiovascular mortality in predialysis CKD and in end-stage renal disease. This paper will describe the design and rationale of a randomised double-blinded placebo-controlled multicentre clinical trial, which will investigate whether oral Mg supplementation can prevent the progression of coronary artery calcification (CAC) in subjects with predialysis CKD...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28643486/comparison-of-intact-pth-and-bio-intact-pth-assays-among-non-dialysis-dependent-chronic-kidney-disease-patients
#13
Yael Einbinder, Sydney Benchetrit, Eliezer Golan, Tali Zitman-Gal
BACKGROUND: The third-generation bio-intact parathyroid hormone (PTH) (1-84) assay was designed to overcome problems associated with the detection of C-terminal fragments by the second-generation intact PTH assay. The two assays have been compared primarily among dialysis populations. The present study evaluated the correlations and differences between these two PTH assays among patients with chronic kidney disease (CKD) stages 3 to 5 not yet on dialysis. METHODS: Blood samples were collected from 98 patients with CKD stages 3 to 5...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28639740/declining-rates-of-hip-fracture-in-end-stage-renal-disease-analysis-from-the-2003-2011-nationwide-inpatient-sample
#14
Sun Moon Kim, Sai Liu, Jin Long, Maria E Montez-Rath, Mary B Leonard, Glenn M Chertow
The incidence of hip fracture in patients with end-stage renal disease (ESRD) is considerably higher than that in the general age- and sex-matched population. Although medical therapy for chronic kidney disease mineral bone disorder (CKD-MBD) has changed considerably over the last decade, rates of hip fracture in the entire ESRD population have not been well-characterized. Herein, we evaluated temporal trends in rates of hip fracture, in-hospital mortality, and costs of associated hospital stay in ESRD. We identified hospitalizations for hip fracture from 2003 to 2011 using the Nationwide Inpatient Sample, a representative national database inclusive of all ages and payers...
June 22, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28623542/identification-of-differentially-expressed-mirnas-associated-with-chronic-kidney-disease-mineral-bone-disorder
#15
Kyung Im Kim, Sohyun Jeong, Nayoung Han, Jung Mi Oh, Kook-Hwan Oh, In-Wha Kim
The purpose of this study is to characterize a meta-signature of differentially expressed mRNA in chronic kidney disease (CKD) to predict putative microRNA (miRNA) in CKD-mineral bone disorder (CKD-MBD) and confirm the changes in these genes and miRNA expression under uremic conditions by using a cell culture system. PubMed searches using MeSH terms and keywords related to CKD, uremia, and mRNA arrays were conducted. Through a computational analysis, a meta-signature that characterizes the significant intersection of differentially expressed mRNA and expected miRNAs associated with CKD-MBD was determined...
June 14, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28619127/bone-mineral-disturbances-in-patients-with-chronic-kidney-disease-stage-5-not-yet-on-dialysis
#16
Andreja Marn Pernat, Matej Zrimšek
AIMS: This retrospective study evaluates the success of a treatment strategy for secondary hyperparathyroidism in our cohort of patients with chronic kidney disease stage 5 who were not yet on dialysis. MATERIALS AND METHODS: 81 predialysis patients from the outpatient clinic of the Department of Nephrology, University Medical Center Ljubljana were reviewed. We focused on serum markers for bone mineral metabolism including intact parathyroid hormone (PTH), phosphate, corrected calcium, and the usage of phosphate-binding agents and vitamin D analogs...
June 16, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28616217/is-chronic-kidney-disease-mineral-and-bone-disorder-associated-with-the-presence-of-endothelial-progenitor-cells-with-a-calcifying-phenotype
#17
Giuseppe Cianciolo, Irene Capelli, Maria Cappuccilli, Anna Scrivo, Chiara Donadei, Antonio Marchetti, Paola Rucci, Gaetano La Manna
Background: Chronic kidney disease-mineral and bone disorder (CKD-MBD) has been implicated in vascular calcification pathogenesis. CKD-MBD results in alterations in the number and function of circulating endothelial progenitor cells (EPCs), physiological regulators of angiogenesis and vessel repair, commonly defined as proangiogenic progenitor cells (PACs) by the antigen pattern CD34+CD133+KDR+CD45- and putative EPCs by the pattern CD34+CD133-KDR+CD45-. These cells might acquire a calcifying phenotype in CKD-MBD, expressing mineralization biomarkers...
June 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28615947/treatment-of-secondary-hyperparathyroidism-the-clinical-utility-of-etelcalcetide
#18
REVIEW
Mario Cozzolino, Andrea Galassi, Ferruccio Conte, Michela Mangano, Luca Di Lullo, Antonio Bellasi
Secondary hyperparathyroidism (SHPT), a very frequent, severe, and worsening complication of chronic kidney disease, is characterized by high serum parathyroid hormone (PTH), parathyroid gland hyperplasia, and disturbances in mineral metabolism. Clinically, SHPT shows renal osteodystrophy, vascular calcification, cardiovascular damage, and fatal outcome. Calcium-sensing receptor (CaSR) is the main physiological regulator of PTH secretion; its activation by calcium rapidly inhibits PTH. Another important player in regulating mineral metabolism is vitamin D receptor (VDR), which is under the influence of vitamin D and influences the intestinal absorption of calcium and phosphate, PTH gene expression, and bone calcium mobilization...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28614116/parathyroid-hormone-and-the-regulation-of-renal-tubular-calcium-transport
#19
Benjamin Ko
PURPOSE OF REVIEW: Renal tubule excretion of calcium is carefully and complexly regulated. At the center of this process, parathyroid hormone (PTH) is the chief regulator of renal calcium reabsorption. This review outlines our current understanding of PTH's effects on renal tubular calcium transport, focusing on the more recent discoveries beyond its direct regulation of epithelial Ca channel transient receptor potential vanilloid 5 (TRPV5) and looking at its interaction with sodium transport and the hormones fibroblast growth factor 23 (FGF23) and klotho...
June 12, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28600887/therapeutic-effects-of-fgf23-c-tail-fc-in-a-murine-pre-clinical-model-of-x-linked-hypophosphatemia-via-the-selective-modulation-of-phosphate-reabsorption
#20
Kristen Johnson, Kymberly Levine, Joseph Sergi, Jean Chamoun, Rachel Roach, Jackie Vekich, Mike Favis, Mark Horn, Xianjun Cao, Brian Miller, William Snyder, Dikran Aivazian, William Reagan, Edwin Berryman, Jennifer Colangelo, Victoria Markiewicz, Cedo Bagi, Thomas P Brown, Anthony Coyle, Moosa Mohammadi, Jeanne Magram
Fibroblast growth factor 23 (FGF23) is the causative factor of X-linked hypophosphatemia (XLH), a genetic disorder effecting 1:20,000 that is characterized by excessive phosphate excretion, elevated FGF23 levels and a rickets/osteomalacia phenotype. FGF23 inhibits phosphate reabsorption and suppresses 1α,25-dihydroxyvitamin D (1,25D) biosynthesis, analytes that differentially contribute to bone integrity and deleterious soft tissue mineralization. As inhibition of ligand broadly modulates downstream targets, balancing efficacy and unwanted toxicity is difficult when targeting the FGF23 pathway...
June 10, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
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