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Paricalcitol

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https://www.readbyqxmd.com/read/28737133/pretreatment-with-paricalcitol-attenuates-level-and-expression-of-matrix-metalloproteinases-in-a-rat-model-of-renal-ischemia-reperfusion-injury%C3%A2
#1
Sibel Ersan, Asli Celik, Mehmet Tanrisev, Isil Kose, Zahide Cavdar, Mehtat Unlu, Ayse Kocak, Cemre Ural, Banu Yilmaz, Timur Kose
BACKGROUND: Ischemia-reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI). The inflammatory response that drives IRI involves upregulation of matrix metalloproteinases (MMPs), which results in proteolytic degradation of renal microvascular matrix. Evidence suggests a potential protective role of active vitamin D on ischemic injury by downregulating MMPs. In the present study, we aimed to determine the expression and level of MMP-2 and MMP-9 in renal IRI model and the potential beneficial effect of paricalcitol on both level and expression of MMPs and tubular injury caused by IRI...
July 24, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28720647/in-situ-targeting-of-dendritic-cells-sets-tolerogenic-environment-and-ameliorates-cd4-t-cell-response-in-the-postischemic-liver
#2
Dominik Funken, Hellen Ishikawa-Ankerhold, Bernd Uhl, Maximilian Lerchenberger, Markus Rentsch, Doris Mayr, Steffen Massberg, Jens Werner, Andrej Khandoga
CD4(+) T cells recruited to the liver play a key role in the pathogenesis of ischemia/reperfusion (I/R) injury. The mechanism of their activation during alloantigen-independent I/R is not completely understood. We hypothesized that liver-resident dendritic cells (DCs) interact with CD4(+) T cells in the postischemic liver and that modulation of DCs or T-cell-DC interactions attenuates liver inflammation. In mice, warm hepatic I/R (90/120-240 min) was induced. Tolerogenic DCs were generated in situ by pretreatment of animals with the vitamin D analog paricalcitol...
July 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28680822/paricalcitol-attenuates-lipopolysaccharide-induced-inflammation-and-apoptosis-in-proximal-tubular-cells-through-the-prostaglandin-e2-receptor-ep4
#3
Yu Ah Hong, Keum Jin Yang, So Young Jung, Yoon Kyung Chang, Cheol Whee Park, Chul Woo Yang, Suk Young Kim, Hyeon Seok Hwang
BACKGROUND: Vitamin D is considered to exert a protective effect on various renal diseases but its underlying molecular mechanism remains poorly understood. This study aimed to determine whether paricalcitol attenuates inflammation and apoptosis during lipopolysaccharide (LPS)-induced renal proximal tubular cell injury through the prostaglandin E2 (PGE2) receptor EP4. METHODS: Human renal tubular epithelial (HK-2) cells were pretreated with paricalcitol (2 ng/mL) for 1 hour and exposed to LPS (1 μg/mL)...
June 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28680818/anti-inflammatory-and-anti-apoptotic-effects-of-paricalcitol-in-lipopolysaccharide-induced-renal-proximal-tubular-cell-injury
#4
EDITORIAL
Soo Wan Kim
No abstract text is available yet for this article.
June 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28674323/newly-developed-rat-model-of-chronic-kidney-disease-mineral-bone-disorder
#5
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/28664839/effects-of-paricalcitol-on-biomarkers-of-inflammation-and-fibrosis-in-kidney-transplant-recipients-results-of-a-randomized-controlled-trial
#6
Manca Oblak, Gregor Mlinšek, Aljoša Kandus, Jadranka Buturović-Ponikvar, Miha Arnol
AIMS: Paricalcitol, a selective vitamin D activator, decreases proteinuria and may reduce graft failure risk in kidney transplant recipients. In this study, we evaluated the effect of paricalcitol on renin-angiotensin system (RAS) activity as well as interleukin (IL)-6 and transforming growth factor (TGF)-β plasma concentrations as biomarkers of inflammation and fibrosis. METHODS: This placebo-controlled, double-blind trial enrolled a national cohort of kidney transplant recipients with urinary protein-to-creatinine ratio (UPCR) ≥ 20 mg/mmol despite optimization of the RAS blockade...
June 30, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28664547/vitamin-d3-ameliorates-podocyte-injury-through-the-nephrin-signalling-pathway
#7
Ourania Trohatou, Effie-Fotini Tsilibary, Aristidis Charonis, Christos Iatrou, Garyfalia Drossopoulou
Renal podocytes form the main filtration barrier possessing unique phenotype maintained by proteins including podocalyxin and nephrin, which are modulated in pathological conditions. In diabetic nephropathy (DN), podocytes become structurally and functionally compromised. Nephrin, a structural backbone protein of the slit diaphragm, acts as regulator of podocyte intracellular signalling with renoprotective role. Vitamin D3 through its receptor, VDR, provides renal protection in DN but limited data exist about its effect on podocytes...
June 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28623033/anti-inflammatory-profile-of-paricalcitol-in-kidney-transplant-recipients
#8
Javier Donate-Correa, Fernando Henríquez-Palop, Ernesto Martín-Núñez, Carolina Hernández-Carballo, Carla Ferri, Nayra Pérez-Delgado, Mercedes Muros-de-Fuentes, Carmen Mora-Fernández, Juan F Navarro-González
BACKGROUND AND OBJECTIVES: Paricalcitol, a selective vitamin D receptor activator, is used to treat secondary hyperparathyroidism in kidney transplant patients. Experimental and clinical studies in non-transplant kidney disease patients have found this molecule to have anti-inflammatory properties. In this exploratory study, we evaluated the anti-inflammatory profile of paricalcitol in kidney-transplant recipients. METHODS: Thirty one kidney transplant recipients with secondary hyperparathyroidism completed 3 months of treatment with oral paricalcitol (1μg/day)...
June 13, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
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
#9
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/28596512/paricalcitol-as-an-antiproteinuric-agent-can-result-in-the-deterioration-of-renal-and-heart-function-in-a-patient-with-fabry-disease
#10
Tajda Keber, Martin Tretjak, Andreja Cokan Vujkovac, Marija Mravljak, Katja Ravber, Bojan Vujkovac
BACKGROUND Fabry disease is a rare and progressive X-linked inherited disorder of glycosphingolipid metabolism that is due to deficient or absent lysosomal a-galactosidase A activity. Among its other associated signs and symptoms, patients present with renal failure and proteinuria, which are markers of disease progression. Renin-angiotensin-aldosterone system (RAAS) blockers can slow the progression of chronic renal failure and proteinuria. In fact, some studies have shown the beneficial effects of paricalcitol on proteinuria...
June 9, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28551720/effect-of-paricalcitol-on-pancreatic-oxidative-stress-inflammatory-markers-and-glycemic-status-in-diabetic-rats
#11
T M Ali, B El Esawy, A Elaskary
OBJECTIVES: This study is designed to explore the effect of paricalcitol (vitamin D receptor agonist) on pancreatic oxidative stress, inflammatory markers, and adiponectin and glycemic status in diabetic rats. MATERIALS AND METHODS: Forty Sprague-Dawley male rats aged 10-12 weeks (150-250 g) were used in this study. Type 2 diabetes was developed by providing 4 weeks of high-fat-diet feeding before one shot of streptozotocin injection (40 mg/kg i.p.). Four study groups were designed as normal control rats, diabetic control vehicle-treated, diabetic paricalcitol-treated (0...
May 27, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28547797/vitamin-d-receptor-agonists-regulate-ocular-developmental-angiogenesis-and-modulate-expression-of-dre-mir-21-and-vegf
#12
Stephanie L Merrigan, Breandán N Kennedy
BACKGROUND AND PURPOSE: Pathological growth of ocular vasculature networks can underpin visual impairment in neovascular age-related macular degeneration, proliferative diabetic retinopathy and retinopathy of prematurity. Our aim was to uncover novel pharmacological regulators of ocular angiogenesis by phenotype-based screening in zebrafish. EXPERIMENTAL APPROACH: A bioactive chemical library of 465 drugs was screened to identify small molecule inhibitors of ocular hyaloid vasculature (HV) angiogenesis in zebrafish larvae...
May 26, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28511692/vitamin-d-receptor-activation-reduces-inflammatory-cytokines-and-plasma-micrornas-in-moderate-chronic-kidney-disease-a-randomized-trial
#13
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/28465762/paricalcitol-pretreatment-attenuates-renal-ischemia-reperfusion-injury-via-prostaglandin-e2-receptor-ep4-pathway
#14
Yu Ah Hong, Keum Jin Yang, So Young Jung, Ki Cheol Park, Hyunsu Choi, Jeong Min Oh, Sang Ju Lee, Yoon Kyung Chang, Cheol Whee Park, Chul Woo Yang, Suk Young Kim, Hyeon Seok Hwang
The protective mechanism of paricalcitol remains unclear in renal ischemia-reperfusion (IR) injury. We investigated the renoprotective effects of paricalcitol in IR injury through the prostaglandin E2 (PGE2) receptor EP4. Paricalcitol was injected into IR-exposed HK-2 cells and mice subjected to bilateral kidney ischemia for 23 min and reperfusion for 24 hr. Paricalcitol prevented IR-induced cell death and EP4 antagonist cotreatment offset these protective effects. Paricalcitol increased phosphorylation of Akt and cyclic AMP responsive element binding protein (CREB) and suppressed nuclear factor-κB (NF-κB) in IR-exposed cells and cotreatment of EP4 antagonist or EP4 small interfering RNA blunted these signals...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28460073/regulation-of-mir-29b-and-mir-30c-by-vitamin-d-receptor-activators-contributes-to-attenuate-uraemia-induced-cardiac-fibrosis
#15
Sara Panizo, Natalia Carrillo-López, Manuel Naves-Díaz, Guillermo Solache-Berrocal, Laura Martínez-Arias, Raúl R Rodrigues-Díez, Amalia Fernández-Vázquez, Carlos Martínez-Salgado, Marta Ruiz-Ortega, Adriana Dusso, Jorge B Cannata-Andía, Isabel Rodríguez
Background.: Uraemic cardiomyopathy, a process mainly associated with increased myocardial fibrosis, is the leading cause of death in chronic kidney disease patients and can be prevented by vitamin D receptor activators (VDRAs). Since some microRNAs (miRNAs) have emerged as regulators of the fibrotic process, we aimed to analyse the role of specific miRNAs in VDRA prevention of myocardial fibrosis as well as their potential use as biomarkers. Methods.: Wistar rats were nephrectomized and treated intraperitoneally with equivalent doses of two VDRAs: calcitriol and paricalcitol...
April 28, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28451892/oral-paricalcitol-expanding-therapeutic-options-for-pediatric-chronic-kidney-disease-patients
#16
EDITORIAL
Michael Freundlich, Carolyn L Abitbol
The complex pathophysiology of progressive chronic kidney disease (CKD) and the development of mineral and bone disorder, abbreviated as CKD-MBD, is of vital importance to a pediatric patient. Paricalcitol, the 19 nor-1,25(OH)2D2 analogue was shown to be effective and safe in the treatment of secondary hyperparathyroidism (SHPT) in adults almost two decades ago. It also significantly improved survival in dialysis patients compared to the standard calcitriol. The successful treatment of CKD-MBD in children is essential if they are to grow and survive into adulthood...
April 27, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28442557/high-phosphate-induces-a-pro-inflammatory-response-by-vascular-smooth-muscle-cells-modulation-by-vitamin-d-derivatives
#17
Julio M Martínez-Moreno, Carmen Herencia, Addy Montes de Oca, Juan M Díaz-Tocados, Noemi Vergara, Mª José Gomez, Silvia D López-Argüello, Antonio Camargo, Esther Peralbo-Santaella, Maria E Rodríguez-Ortiz, Antonio Canalejo, Mariano Rodriguez, Juan R Muñoz-Castañeda, Yolanda Almaden
In chronic kidney disease patients, high phosphate (HP) levels are associated to cardiovascular disease, the major cause of morbidity and mortality. Since serum phosphate has been independently correlated with inflammation, the present study aimed to investigate an independent direct effect of HP as a pro-inflammatory factor in VSMCs. A possible modulatory effect of vitamin D was also investigated. The study was performed in an in vitro model of human aortic smooth muscle cells (HASMCs). Incubation of cells in a HP (3...
April 25, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28436117/early-introduction-of-oral-paricalcitol-in-renal-transplant-recipients-an-open-label-randomized-study
#18
Hege Kampen Pihlstrøm, Franscesca Gatti, Clara Hammarström, Ivar Anders Eide, Monika Kasprzycka, Junbai Wang, Guttorm Haraldsen, My Hanna Sofia Svensson, Karsten Midtvedt, Geir Mjøen, Dag Olav Dahle, Anders Hartmann, Hallvard Holdaas
In stable renal transplant recipients with hyperparathyroidism, previous studies have indicated that vitamin D agonist treatment might have anti-proteinuric effects. Animal studies indicate possible anti-fibrotic and anti-inflammatory effects. Early introduction of paricalcitol in de novo renal transplant recipients might reduce proteinuria and prevent progressive allograft fibrosis. We performed a single-center, prospective, randomized, open-label trial investigating effects of paricalcitol 2 μg/day added to standard care...
April 24, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28423536/jmjd3-suppresses-stem-cell-like-characteristics-in-breast-cancer-cells-by-downregulation-of-oct4-independently-of-its-demethylase-activity
#19
Jing Xun, Dekun Wang, Long Shen, Junbo Gong, Ruifang Gao, Lingfang Du, Antao Chang, Xiangrong Song, Rong Xiang, Xiaoyue Tan
Epigenetic regulator JMJD3 plays an important role in both tumor progression and somatic cell reprogramming. Here, we explored the effect of JMJD3 on the stem cell-like characteristics of breast cancer and its underlying mechanism involving stemness-related transcription factor Oct4. Our data revealed that, in breast cancer cells lines and an orthotopic xenograph mouse model of breast cancer, ectopic overexpression of JMJD3 suppressed stem cell-like characteristics of breast cancer cells, whereas knockdown of JMJD3 promoted these characteristics...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28380670/improved-regeneration-and-de-novo-bone-formation-in-a-diabetic-zebrafish-model-treated-with-paricalcitol-and-cinacalcet
#20
Filipe R Carvalho, Ana R Fernandes, M Leonor Cancela, Paulo J Gavaia
Bone changes related to diabetes have been well stablished, but few strategies have been developed to prevent this growing health problem. In our work, we propose to investigate the effects of calcitriol as well as of a vitamin D analog (paricalcitol) and a calcimimetic (cinacalcet), in fin regeneration and de novo mineralization in a zebrafish model of diabetes. Following exposure of diabetic transgenic Tg(ins:nfsb-mCherry) zebrafish to calcitriol, paricalcitol and cinacalcet, caudal fins were amputated to assess their effects on tissue regeneration...
April 5, 2017: Wound Repair and Regeneration
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