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Vascular calcifications

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https://www.readbyqxmd.com/read/28811853/effects-of-sevelamer-hydrochloride-on-uremic-toxins-serum-indoxyl-sulfate-and-p-cresyl-sulfate-in-hemodialysis-patients
#1
Cheng-Jui Lin, Chi-Feng Pan, Chih-Kuang Chuang, Hsuan-Liang Liu, Sung-Fa Huang, Han-Hsiang Chen, Chih-Jen Wu
BACKGROUND: Beside the phosphate binding effect, non-calcium non-aluminum phosphate binder, namely sevelamer hydrochloride (SH), has many other effects in dialysis patients. It can absorb many other compounds, decrease low-density lipoprotein cholesterol (LDL-C) level, and attenuate the progression of vascular calcification; it has been reported to have anti-inflammatory effect. However, it is not clear whether it has any effect on uremic toxins, i.e. serum indoxyl sulfate (IS) and p-cresyl sulfate, (PCS) in hemodialysis (HD) patients...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28805201/-osteoporosis-and-vascular-calcification-in-rheumatoid-arthritis-the-role-of-osteoprotegerin-and-sclerostin
#2
REVIEW
Magdalena Krajewska-Włodarczyk, Tomasz Stompór
Disorders of bone tissue metabolism and increased frequency of cardiovascular diseases are among the well-known, extra-articular complications of rheumatoid arthritis (ra). The mechanisms leading to local and generalized loss of bone tissue as well as those promoting calcification of vessels are similar. Recently, a great interest has aroused among the studies related to the meaning of the RANKL/RANK/OPG system and the Wnt/β-catenin signaling pathway, as biological links between the bone and vascular systems...
July 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28805140/a-rat-model-for-the-in-vivo-assessment-of-biological-and-tissue-engineered-valvular-and-vascular-grafts
#3
Yukiharu Sugimura, Anna Kathrin Schmidt, Artur Lichtenberg, Alexander Assmann, Payam Akhyari
The demand for an improvement of the biocompatibility and durability of vascular and valvular implants requires translational animal models to study the in vivo fate of cardiovascular grafts. In the present article, a review on the development and application of a microsurgical rat model of infrarenal implantation of aortic grafts and aortic valved conduits is provided. By refinement of surgical techniques and inclusion of hemodynamic considerations, a functional model has been created, which provides a modular platform for the in vivo assessment of biological and tissue-engineered grafts...
August 12, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28801122/deoxycholic-acid-a-metabolite-of-circulating-bile-acids-and-coronary-artery-vascular-calcification-in-ckd
#4
Anna Jovanovich, Tamara Isakova, Geoffrey Block, Jason Stubbs, Gerard Smits, Michel Chonchol, Makoto Miyazaki
BACKGROUND: Vascular calcification is common among patients with chronic kidney disease (CKD), and it is associated with all-cause and cardiovascular disease mortality. Deoxycholic acid, a metabolite of circulating bile acids, is elevated in CKD and induces vascular mineralization and osteogenic differentiation in animal models. STUDY DESIGN: Cohort analysis of clinical trial participants. SETTING & PARTICIPANTS: 112 patients with moderate to severe CKD (estimated glomerular filtration rate, 20-45mL/min/1...
August 9, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28796300/apelin-apj-system-a-novel-potential-therapy-target-for-kidney-disease
#5
REVIEW
Zhen Huang, Lele Wu, Linxi Chen
Apelin is an endogenous ligand of seven-transmembrane G protein-coupled receptor APJ. Apelin and APJ are distributed in various tissues, including the heart, lung, kidney, and even in tumor tissues. Studies show that apelin mRNA is highly expressed in the inner stripe of kidney outer medulla, which plays an important role in process of water and sodium balance. Additionally, more studies also indicate that apelin/APJ system exerts a broad range of activities in kidney. Therefore, we review the role of apelin/APJ system in kidney diseases such as renal fibrosis, renal ischemia/reperfusion injury, diabetic nephropathy, polycystic kidney disease and hemodialysis...
August 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28796175/suppression-of-wnt-signaling-and-osteogenic-changes-in-vascular-smooth-muscle-cells-by-eicosapentaenoic-acid
#6
Yukihiro Saito, Kazufumi Nakamura, Daiji Miura, Kei Yunoki, Toru Miyoshi, Masashi Yoshida, Norifumi Kawakita, Tomonari Kimura, Megumi Kondo, Toshihiro Sarashina, Satoshi Akagi, Atsuyuki Watanabe, Nobuhiro Nishii, Hiroshi Morita, Hiroshi Ito
Vascular medial calcification is often observed in patients with arteriosclerosis. It is also associated with systolic hypertension, wide pulse pressure, and fluctuation of blood pressure, which results in cardiovascular events. Eicosapentaenoic acid (EPA) has been shown to suppress vascular calcification in previous animal experiments. We investigated the inhibitory effects of EPA on Wnt signaling, which is one of the important signaling pathways involved in vascular calcification. Intake of food containing 5% EPA resulted in upregulation of the mRNA expression of Klotho, an intrinsic inhibitor of Wnt signaling, in the kidneys of wild-type mice...
August 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28794644/the-rank-rankl-opg-system-in-tumorigenesis-and-metastasis-of-cancer-stem-cell-potential-targets-for-anticancer-therapy
#7
REVIEW
Mekonnen Sisay, Getnet Mengistu, Dumessa Edessa
The molecular triad involving receptor activator of nuclear factor kβ (RANK)/RANK ligand (RANKL)/osteoprotegerin cytokine system has been well implicated in several physiological and pathological processes including bone metabolism, mammary gland development, regulation of the immune function, tumorigenesis and metastasis of cancer stem cell, thermoregulation, and vascular calcification. However, this review aimed to summarize several original and up-to-date articles focusing on the role of this signaling system in cancer cell development and metastasis as well as potential therapeutic agents targeting any of the three tumor necrotic factor super family proteins and/or their downstream signaling pathways...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28789654/serum-high-mobility-group-box-1-and-osteoprotegerin-levels-are-associated-with-peripheral-arterial-disease-and-critical-limb-ischemia-in-type-2-diabetic-subjects
#8
Silvia Giovannini, Giovanni Tinelli, Federico Biscetti, Giuseppe Straface, Flavia Angelini, Dario Pitocco, Luciana Mucci, Raffaele Landolfi, Andrea Flex
BACKGROUND: High mobility group box-1 (HMGB-1) is a nuclear protein also acting as inflammatory mediator, whilst osteoprotegerin (OPG), member of tumor necrosis factor receptor superfamily, is indicated as marker of vascular calcification. Peripheral artery disease (PAD) and type 2 diabetes (T2D) are clinical conditions characterized by elevated serum inflammatory markers and vascular calcification enhancement. The aim of this study was to investigate the potential role of HMGB-1, OPG and several inflammatory mediators such as C-reactive protein (HsCRP), tumor necrosis factor-alpha and interleukin-6 (IL-6) on the presence and severity of peripheral artery disease in patients with T2D...
August 8, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28776684/characterization-and-assessment-of-potential-micrornas-involved-in-phosphate-induced-aortic-calcification
#9
Maya Fakhry, Najwa Skafi, Mohammad Fayyad-Kazan, Firas Kobeissy, Eva Hamade, Saida Mebarek, Aida Habib, Nada Borghol, Asad Zeidan, David Magne, Hussein Fayyad-Kazan, Bassam Badran
Medial artery calcification, a hallmark of type 2 diabetes mellitus and chronic kidney disease (CKD), is known as an independent risk factor for cardiovascular mortality and morbidity. Hyperphosphatemia associated with CKD is a strong stimulator of vascular calcification but the molecular mechanisms regulating this process remain not fully understood. We showed that calcification was induced after exposing Sprague-Dawley rat aortic explants to high inorganic phosphate level (Pi , 6 mM) as examined by Alizarin red and Von Kossa staining...
August 4, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28774557/fibroblast-growth-factor-21-plays-an-inhibitory-role-in-vascular-calcification-in-vitro-through-opg-rankl-system
#10
Fangying Cao, Xiaoxiao Liu, Xiangrong Cao, Shaoping Wang, Kun Fu, Yejing Zhao, Fang Shen, Jinghua Liu
Vascular calcification is prevalent and associated with adverse outcome without available therapy. The benefits of fibroblast growth factor (FGF)-21 on metabolism and atherosclerosis make it a promising therapeutic agent for vascular calcification. We investigated the effects of FGF21 on vascular smooth muscle cell (VSMC) calcification by culturing rat VSMCs in a calcifying medium for 9days. FGF21 markedly attenuated mineral deposition and apoptosis at the indicated time points. In the presence of FGF21, the expression levels of osteoblastic protein including bone morphogenic protein-2, alkaline phosphatase(ALP), runt-related transcription factor(RUNX)-2 and nuclear factor-kappa B ligand (RANKL) were down-regulated, whereas the expression of osteoprotegerin (OPG) increased...
July 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28771600/eicosapentaenoic-acid-prevents-arterial-calcification-in-klotho-mutant-mice
#11
Kazufumi Nakamura, Daiji Miura, Yukihiro Saito, Kei Yunoki, Yasushi Koyama, Minoru Satoh, Megumi Kondo, Kazuhiro Osawa, Omer F Hatipoglu, Toru Miyoshi, Masashi Yoshida, Hiroshi Morita, Hiroshi Ito
BACKGROUND: The klotho gene was identified as an "aging-suppressor" gene that accelerates arterial calcification when disrupted. Serum and vascular klotho levels are reduced in patients with chronic kidney disease, and the reduced levels are associated with arterial calcification. Intake of eicosapentaenoic acid (EPA), an n-3 fatty acid, reduces the risk of fatal coronary artery disease. However, the effects of EPA on arterial calcification have not been fully elucidated. The aim of this study was to determine the effect of EPA on arterial calcification in klotho mutant mice...
2017: PloS One
https://www.readbyqxmd.com/read/28765249/ultrasound-characteristics-of-the-achilles-tendon-in-tophaceous-gout-a-comparison-with-age-and-sex-matched-controls
#12
Matthew Carroll, Nicola Dalbeth, Bruce Allen, Sarah Stewart, Tony House, Mark Boocock, Christopher Frampton, Keith Rome
OBJECTIVE: To investigate the frequency and distribution of characteristics of the Achilles tendon (AT) in people with tophaceous gout using musculoskeletal ultrasound (US). METHODS: Twenty-four participants with tophaceous gout and 24 age- and sex-matched controls without gout or other arthritis were recruited. All participants underwent a greyscale and power Doppler US examination. The AT was divided into 3 anatomical zones (insertion, pre-insertional, and proximal to the mid-section)...
August 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28760336/dietary-magnesium-supplementation-prevents-and-reverses-vascular-and-soft-tissue-calcifications-in-uremic-rats
#13
Juan M Diaz-Tocados, Alan Peralta-Ramirez, María E Rodríguez-Ortiz, Ana I Raya, Ignacio Lopez, Carmen Pineda, Carmen Herencia, Addy Montes de Oca, Noemi Vergara, Sonja Steppan, M Victoria Pendon-Ruiz de Mier, Paula Buendía, Andrés Carmona, Julia Carracedo, Juan F Alcalá-Díaz, Joao Frazao, Julio M Martínez-Moreno, Antonio Canalejo, Arnold Felsenfeld, Mariano Rodriguez, Escolástico Aguilera-Tejero, Yolanda Almadén, Juan R Muñoz-Castañeda
Although magnesium has been shown to prevent vascular calcification in vitro, controlled in vivo studies in uremic animal models are limited. To determine whether dietary magnesium supplementation protects against the development of vascular calcification, 5/6 nephrectomized Wistar rats were fed diets with different magnesium content increasing from 0.1 to 1.1%. In one study we analyzed bone specimens from rats fed 0.1%, 0.3%, and 0.6% magnesium diets, and in another study we evaluated the effect of intraperitoneal magnesium on vascular calcification in 5/6 nephrectomized rats...
July 28, 2017: Kidney International
https://www.readbyqxmd.com/read/28759963/nondiagnostic-cytological-results-on-ultrasound-guided-fine-needle-aspiration-does-the-thyroid-nodule-depth-matter
#14
Jia-Jing Xia, Meng-Sen Li, Li Zhen, You-Zhen Shi
OBJECTIVE: To evaluate whether thyroid nodule depth and other ultrasound features can predict nondiagnostic cytological results on ultrasound-guided fine needle aspiration. MATERIAL AND METHODS: This retrospective study included 412 thyroid nodules that underwent ultrasound-guided fine needle aspiration from 2014 to 2015. The nodules were classified as nondiagnostic and diagnostic by the cytopathological results. Clinical information of the patients (ie., age, sex) and ultrasound features (ie...
July 25, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28758988/beneficial-effects-of-galectin-3-blockade-in-vascular-and-aortic-valve-alterations-in-an-experimental-pressure-overload-model
#15
Jaime Ibarrola, Ernesto Martínez-Martínez, J Rafael Sádaba, Vanessa Arrieta, Amaia García-Peña, Virginia Álvarez, Amaya Fernández-Celis, Alicia Gainza, Patrick Rossignol, Victoria Cachofeiro Ramos, Natalia López-Andrés
Galectin-3 (Gal-3) is involved in cardiovascular fibrosis and aortic valve (AV) calcification. We hypothesized that Gal-3 pharmacological inhibition with modified citrus pectin (MCP) could reduce aortic and AV remodeling in normotensive rats with pressure overload (PO). Six weeks after aortic constriction, vascular Gal-3 expression was up-regulated in male Wistar rats. Gal-3 overexpression was accompanied by an increase in the aortic media layer thickness, enhanced total collagen, and augmented expression of fibrotic mediators...
July 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28755740/vascular-damage-and-kidney-transplant-outcomes-an-unfriendly-and-harmful-link
#16
REVIEW
Domingo Hernández, Javier Triñanes, Ana María Armas, Pedro Ruiz-Esteban, Juana Alonso-Titos, Ana Duarte, Miguel González-Molina, Eulalia Palma, Eduardo Salido, Armando Torres
Kidney transplant (KT) is the treatment of choice for most patients with chronic kidney disease, but this has a high cardiovascular mortality due to traditional and nontraditional risk factors, including vascular calcification. Inflammation could precede the appearance of artery wall lesions, leading to arteriosclerosis and clinical and subclinical atherosclerosis in these patients. Additionally, mineral metabolism disorders and activation of the renin-angiotensin system could contribute to this vascular damage...
July 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28754616/role-of-uremic-toxin-indoxyl-sulfate-in-the-progression-of-cardiovascular-disease
#17
REVIEW
Huichang Gao, Shan Liu
The prevalence of cardiovascular disease (CVD) among patients with chronic kidney disease (CKD) is relatively high. Deterioration of renal function in CKD leads to accumulation of indoxyl sulfate, a tryptophan metabolite produced by gut microbiota. It is acknowledged that indoxyl sulfate is capable to stimulate oxidative stress, which in turn contributes to the progression of vascular disorders and its resultant coronary artery disease. Recent research have demonstrated the adverse effects of indoxyl sulfate on the heart, together with the acceleration of vascular dysfunction, suggesting that indoxyl sulfate might contribute to high prevalence of CVD in CKD...
July 25, 2017: Life Sciences
https://www.readbyqxmd.com/read/28748891/study-of-chronic-kidney-disease-mineral-bone-disorders-in-newly-detected-advanced-renal-failure-patients-a-hospital-based-cross-sectional-study
#18
Praveen Kumar Etta, R K Sharma, Amit Gupta
We aim to evaluate the disturbances in mineral metabolism, abnormalities in bone mineral density (BMD), and extraskeletal calcification in newly detected, untreated predialysis stage 4 and 5 chronic kidney disease (CKD) patients at a tertiary care hospital in North India. This is cross-sectional observational study. A total of 95 (68 males, 27 females) newly detected patients underwent clinical evaluation, biochemical assessment [serum calcium, phosphorus, alkaline phosphatase (ALP), albumin, creatinine, intact parathyroid hormone (iPTH), 25- hydroxyvitamin D (25(OH)D)], BMD measurement (at spine, hip, and forearm) by dual-energy X-ray absorptiometry (DXA), lateral abdominal radiograph [for abdominal aortic calcification (AAC)], skeletal survey (to look for any abnormality including fractures), and echocardiography [for any cardiac valvular calcification (CVC)]...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28748884/association-between-age-and-cardiovascular-status-by-echosonography-in-asymptomatic-predialysis-patients-with-chronic-kidney-disease
#19
Biserka Tirmenstajn-Jankovic, Nada Dimkovic, Zoran Radojicic, Dusan Bastac, Milenko Zivanovic, Svetlana Zikic
Age is an important risk factor for cardiovascular disease in the general population and in dialysis patients. The aim of this study is to investigate the influence of age on the cardiovascular status of asymptomatic predialysis patients with chronic kidney disease (CKD). Echocardiography and carotid ultrasound were performed in 61 patients with CKD stages 4-5, who were divided by age into two groups: group 1 (≥65 years, n = 31) and group 2 (<65 years, n = 30). Data were compared with those of control group (≥65 years, n = 20)...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28736003/kidney-graft-salvage-strategies-for-vascular-complications-during-kidney-transplantation-a-single-center-experience
#20
P Horvath, I Capobianco, J Rolinger, A Königsrainer, S Nadalin, I Königsrainer
BACKGROUND: Kidney-related unknown vascular injuries are rare and usually diagnosed only after reperfusion. Hemorrhage that makes in situ reconstruction impossible can lead to graft loss. In an era of organ shortage and an increasing number of patients on the waiting list for transplantation, a kidney graft salvage procedure consisting of graft nephrectomy, reperfusion, reconstruction, and reimplantation should be undertaken whenever possible as a contribution to extending the organs available for transplantation...
July 2017: Transplantation Proceedings
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