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CKD and vitamin D

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https://www.readbyqxmd.com/read/28643486/comparison-of-intact-pth-and-bio-intact-pth-assays-among-non-dialysis-dependent-chronic-kidney-disease-patients
#1
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/28619127/bone-mineral-disturbances-in-patients-with-chronic-kidney-disease-stage-5-not-yet-on-dialysis
#2
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
#3
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/28576851/urinary-tamm-horsfall-protein-albumin-vitamin-d-binding-protein-and-retinol-binding-protein-as-early-biomarkers-of-chronic-kidney-disease-in-dogs
#4
Fernanda Chacar, Márcia Kogika, Talita R Sanches, Douglas Caragelasco, Cínthia Martorelli, Camila Rodrigues, Jose Manuel C Capcha, Dennis Chew, Lúcia Andrade
Proteinuria is a marker and mediator of chronic kidney disease (CKD). In clinical practice, the urinary protein-to-creatinine ratio (UP/C) is of limited usefulness, because it indicates only the magnitude of proteinuria and not the origin of the loss (glomerular or tubular). The complete assessment of proteinuria includes quantitative and qualitative evaluations, both of which are required in order to optimize the therapy. In addition to measuring the UP/C, we performed SDS-PAGE and western blotting to determine the expression of albumin, vitamin D-binding protein (VDBP), retinol-binding protein (RBP), and Tamm-Horsfall protein (THP) in urine samples of 49 dogs: healthy (control) dogs (n = 9); and dogs with CKD (n = 40), stratified by stage...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28554998/nutritional-vitamin-d-in-renal-transplant-patients-speculations-and-reality
#5
REVIEW
Piergiorgio Messa, Anna Regalia, Carlo Maria Alfieri
Reduced levels of nutritional vitamin D are commonly observed in most chronic kidney disease (CKD) patients and particularly in patients who have received a kidney transplant (KTx). In the complex clinical scenario characterizing the recipients of a renal graft, nutritional vitamin D deficiency has been put in relation not only to the changes of mineral and bone metabolism (MBM) after KTx, but also to most of the medical complications which burden KTx patients. In fact, referring to its alleged pleiotropic (non-MBM related) activities, vitamin D has been claimed to play some role in the occurrence of cardiovascular, metabolic, immunologic, neoplastic and infectious complications commonly observed in KTx recipients...
May 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28550081/randomized-controlled-trial-for-the-effect-of-vitamin-d-supplementation-on-vascular-stiffness-in-ckd
#6
Adeera Levin, Mila Tang, Taylor Perry, Nadia Zalunardo, Monica Beaulieu, Joshua A Dubland, Kelly Zerr, Ognjenka Djurdjev
BACKGROUND AND OBJECTIVES: Vitamin D is implicated in vascular health in CKD. This study compared placebo, calcifediol, and calcitriol treatment with changes in vascular stiffness, BP, proteinuria, mineral metabolism parameters, C-reactive protein, and fibroblast growth factor 23 in patients with stable CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a double-blind, randomized controlled trial in outpatient CKD clinics in Vancouver, Canada, from February of 2011 to August of 2014, enrolling 119 patients with an eGFR of 15-45 ml/min per 1...
May 26, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28546765/vitamin-d-prohormone-in-the-treatment-of-secondary-hyperparathyroidism-in-patients-with-chronic-kidney-disease
#7
REVIEW
Claudia Friedl, Emanuel Zitt
Secondary hyperparathyroidism (sHPT) represents the adaptive and very often, finally, maladaptive response of the organism to control the disturbed homeostasis of calcium, phosphorus, and vitamin D metabolism caused by declining renal function in chronic kidney disease (CKD). sHPT leads to cardiovascular and extravascular calcifications and is directly linked to an increased risk of cardiovascular morbidity and mortality as well as excess all-cause mortality. Vitamin D plays an important role in the development of sHPT...
2017: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/28546302/considerations-and-controversies-in-managing-chronic-kidney-disease-an-update
#8
REVIEW
Lalita Prasad-Reddy, Diana Isaacs, Alexander Kantorovich
PURPOSE: Current considerations and controversies surrounding the management of chronic kidney disease (CKD) are reviewed. SUMMARY: Patients diagnosed with CKD require a unique clinical approach to prevent medication toxicities and ensure appropriate management of disease-progressing comorbidities, and they require attention to commonly occurring complications that may affect disease control and impact quality of life, including anemia and CKD-bone-mineral disorder (CKD-BMD)...
June 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28519964/association-between-serum-25-hydroxyvitamin-d-and-glycated-hemoglobin-levels-in-type-2-diabetes-patients-with-chronic-kidney-disease
#9
Lee Ling Lim, Yong Muh Ng, Pei San Kang, Soo Kun Lim
AIMS/INTRODUCTION: Vitamin D is suggested to influence glucose homeostasis. An inverse relationship between serum 25-hydroxyvitamin D [25(OH)D] and glycemic control in non-chronic kidney disease (CKD) patients with type 2 diabetes (T2D) was reported. We aimed to examine this association among T2D patients with CKD. MATERIALS AND METHODS: 100 T2D participants with stage 3-4 CKD were recruited. Blood for HbA1c , serum 25(OH)D, renal, and lipid profiles were drawn at enrolment...
May 18, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28511692/vitamin-d-receptor-activation-reduces-inflammatory-cytokines-and-plasma-micrornas-in-moderate-chronic-kidney-disease-a-randomized-trial
#10
Ladan Mansouri, Kristina Lundwall, Ali Moshfegh, Stefan H Jacobson, Joachim Lundahl, Jonas Spaak
BACKGROUND: Chronic kidney disease (CKD) is a major risk factor for cardiovascular disease (CVD), partly due to endothelial dysfunction and chronic inflammation. Vitamin D treatment in end stage renal disease is suggested to modulate the immune system and lead to improved outcomes. We and others have demonstrated that treatment with vitamin D or activated vitamin D analogues protects the endothelial function in less severe renal disease as well. Since the endothelial protection might be mediated by vitamin D effects on inflammation, we assessed levels of pro-inflammatory cytokines and micro RNAs (miRs) in patients with moderate CKD, treated with an active vitamin D analogue (paricalcitol)...
May 16, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28506446/serum-24-25-dihydroxyvitamin-d3-response-to-native-vitamin-d2%C3%A2-and%C3%A2-d3-supplementation-in-patients-with-chronic-kidney-disease%C3%A2-on%C3%A2-hemodialysis
#11
Laura A Graeff-Armas, Martin Kaufmann, Elizabeth Lyden, Glenville Jones
BACKGROUND & AIMS: While vitamin D deficiency is common in patients with end stage renal disease on dialysis and treatment with Vitamin D2 and Vitamin D3 is becoming increasingly common in these patients, little is known about 24,25(OH)2D3 metabolite production. Some authors report that the CYP24A1 enzyme is upregulated in CKD, but reports of low serum levels of 24,25(OH)2D3 in these patients bring this into question. Lack of substrate or increased clearance of the metabolite have been proposed as possible causes...
April 30, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28504486/high-prevalence-of-vitamin-d-deficiency-among-children-with-chronic-kidney-disease-and-kidney-transplant
#12
Paula Coccia, Juliana Blazquez, Maritza Contreras, Verónica Ferrais, Claudia Raddavero, Lidia Ghezzi, Julio Busaniche, Gonzalo Beneitez, Andrea Kozak, Jorge Ferraris
INTRODUCTION: Vitamin D (25(OH)D) deficiency is common among patients with chronic kidney disease (CKD). Our objective was to establish the prevalence of 25(OH)D deficiency among children with CKD and identify risk factors. A correlation was observed between 25(OH)D and parathormone intact molecule. POPULATION AND METHODS: Cross-sectional study conducted between January 2013 and December 2015. Patients younger than 19 years old with and without CKD were included...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28493902/circulating-levels-of-sclerostin-but-not-dkk1-associate-with-laboratory-parameters-of-ckd-mbd
#13
Geert J Behets, Liesbeth Viaene, Björn Meijers, Frank Blocki, Vincent M Brandenburg, Anja Verhulst, Patrick C D'Haese, Pieter Evenepoel
INTRODUCTION: Mounting evidence indicates that a disturbed Wnt-β-catenin signaling may be involved in the pathogenesis of chronic kidney disease-mineral and bone and mineral disorder (CKD-MBD). Data on the impact of CKD on circulating levels of the Wnt antagonists sclerostin and Dickkopf related protein 1 (DKK1) and the relationship with laboratory parameters of CKD-MBD are incomplete. METHODS: We analyzed serum sclerostin and DKK1 in 308 patients across the stages of chronic kidney disease (kDOQI stage 1-2 n = 41; CKD stage 3 n = 54; CKD stage 4-5 n = 54; hemodialysis n = 100; peritoneal dialysis n = 59) as well as in 49 healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28488689/effects-of-vitamin-d-or-its-analogues-on-the-mortality-of-patients-with-chronic-kidney-disease-an-updated-systematic-review-and-meta-analysis
#14
REVIEW
R J Lu, S M Zhu, F L Tang, X S Zhu, Z D Fan, G L Wang, Y F Jiang, Y Zhang
The objective of this study was to assess whether vitamin D (VD) treatment alters the overall all-cause and cardiovascular mortalities in a chronic kidney disease (CKD) population. We systematically searched PubMed, EMBASE, Web of Science, and Cochrane Central Register of Controlled Trials without language restriction, until the publication date of 22 February 2016. All related literatures that compared VD treatment with non-VD treatment and reported the mortality of patients with CKD (including those undergoing dialysis) were identified...
June 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28482261/nonvitamin-k-dependent-oral-anticoagulants-noacs-in-chronic-kidney-disease-patients-with-atrial-fibrillation
#15
REVIEW
L Di Lullo, C Ronco, M Cozzolino, D Russo, L Russo, B Di Iorio, A De Pascalis, V Barbera, M Galliani, E Vitaliano, C Campana, F Santoboni, A Bellasi
Atrial fibrillation (AF) represents the most common arrhythmia in patients with chronic kidney disease (CKD). As in the general population, in CKD patients AF is associated with an increased risk of thromboembolism and stroke. However, CKD patients, especially those on renal replacement therapy (RRT), also exhibit an increased risk of bleeding, especially from the gastrointestinal tract. Oral anticoagulation is the most effective form of thromboprophylaxis in patients with AF presenting increased risk of stroke...
May 4, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28460623/vitamin-d-metabolism-and-potential-effects-of-vitamin-d-receptor-modulation-in-chronic-kidney-disease
#16
Antonio Bellasi, Andrea Galassi, Michela Mangano, Luca Di Lullo, Mario Cozzolino
Vitamin D deficiency is one determinant of secondary hyperparathyroidism in the course of Chronic Kidney Disease (CKD). However, numerous studies support the notion that vitamin D may exert pleiotropic effects aside of mineral metabolism control. Indeed, vitamin D receptor has been identified in a great variety of tissues and its activation contributes to the parathyroid, intestine, cardiovascular and immune system regulation. We herein review vitamin D metabolism and effects with a specific emphasis on the potential impact of vitamin D receptor modulation aside from parathyroid hormone control...
April 26, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28457030/evaluation-of-effect-of-vitamin-d-deficiency-on-anemia-and-erythropoietin-hyporesponsiveness-in-patients-of-chronic-kidney-disease
#17
N Nand, R Mittal
BACKGROUND: The role of vitamin D deficiency and inflammation levels in renal anemia has been documented. However, no study is available in India where the role of vitamin D supplementation in patients with hyporesponsiveness to increased doses of erythropoietin is available. Hence this study. MATERIAL AND METHODS: This study was conducted on 50 adult patients of CKD, on regular, twice weekly hemodialysis. It included 38 cases in group A with deficient serum vitamin D levels (<30 ng/ml) and 12 cases in group B with sufficient vitamin D levels (>30 ng/ml)...
February 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28448520/association-between-vitamin-d-deficiency-and-health-related-quality-of-life-in-patients-with-chronic-kidney-disease-from-the-know-ckd-study
#18
Tae Ryom Oh, Chang Seong Kim, Eun Hui Bae, Seong Kwon Ma, Seung Hyeok Han, Su-Ah Sung, Kyubeck Lee, Kook Hwan Oh, Curie Ahn, Soo Wan Kim
Vitamin D deficiency is a growing health problem in both the general population and in patients with chronic kidney disease (CKD). However, the relationship between serum 25-hydroxyvitamin D levels and health-related quality of life in CKD is not well established. This study examined the association between vitamin D deficiency and quality of life in pre-dialysis CKD patients. Serum 25-hydroxyvitamin D levels and the Korean version of the Kidney Disease Quality of Life short form were obtained for 1844 pre-dialysis CKD patients in the prospective KoreaN cohort Study for Outcomes in patients With Chronic Kidney Disease (KNOW-CKD)...
2017: PloS One
https://www.readbyqxmd.com/read/28429558/is-there-a-role-or-target-value-for-nutritional-vitamin-d-in-chronic-kidney-disease
#19
Wai H Lim, Emma L Duncan
Vitamin D is important for bone health in the general population but the value of vitamin D supplementation, and the role of 25-hydroxyvitamin D independently of 1,25-dihydroxyvitmain D, in individuals with chronic kidney disease (CKD), particularly in those who require dialysis, remains uncertain. Supplementation may improve some biochemical parameters, such as reducing PTH levels in patients to CKD-stage 4 who have vitamin D deficiency; but it remains to be established whether the role of nutritional vitamin D in maintaining bone health in the general population can be extrapolated to the CKD population...
March 2017: Nephrology
https://www.readbyqxmd.com/read/28429550/parathyroid-hormone-targets-in-chronic-kidney-disease-and-managing-severe-hyperparathyroidism
#20
Carmel M Hawley, Stephen G Holt
Appropriate targets for parathyroid hormone (PTH) in patients with chronic kidney disease (CKD) stages 3-5D are controversial, as are the means by which these targets might be achieved. Secondary hyperparathyroidism is linked to symptoms like bone pain and itch, in addition to less clinically overt issues like bone fragility as well as vascular and soft tissue calcification which may lead to adverse hard endpoints, particularly fracture and death. Recognized therapies for managing a rising PTH include vitamin D analogues, with or without calcimimetic (where available), in addition to management of serum mineral concentrations with diet, binders and dialysis...
March 2017: Nephrology
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