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Vascular calcification

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https://www.readbyqxmd.com/read/29353071/effects-of-warfarin-on-biological-processes-other-than-haemostasis-a-review
#1
REVIEW
Aleksandra Popov Aleksandrov, Ivana Mirkov, Marina Ninkov, Dina Mileusnic, Jelena Demenesku, Vesna Subota, Dragan Kataranovski, Milena Kataranovski
Warfarin is the world's most widely used anticoagulant drug. Its anticoagulant activity is based on the inhibition of the vitamin K-dependent (VKD) step in the complete synthesis of a number of blood coagulation factors that are required for normal blood coagulation. Warfarin also affects synthesis of VKD proteins not related to haemostasis including those involved in bone growth and vascular calcification. Antithrombotic activity of warfarin is considered responsible for some aspects of its anti-tumour activity of warfarin...
January 15, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29352150/identification-and-quantification-of-plasma-calciprotein-particles-with-distinct-physical-properties-in-patients-with-chronic-kidney-disease
#2
Yutaka Miura, Yoshitaka Iwazu, Kazuhiro Shiizaki, Tetsu Akimoto, Kazuhiko Kotani, Masahiko Kurabayashi, Hiroshi Kurosu, Makoto Kuro-O
Calciprotein particles (CPP) are solid-phase calcium-phosphate bound to serum protein fetuin-A and dispersed as colloids in the blood. Recent clinical studies indicated that serum CPP levels were increased with decline of renal function and associated with inflammation and vascular calcification. However, CPP assays used in these studies measured only a part of CPP over a certain particle size and density. Here we show that such CPP are mostly artifacts generated during processing of serum samples in vitro...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29350348/snf472-a-novel-inhibitor-of-vascular-calcification-could-be-administered-during-hemodialysis-to-attain-potentially-therapeutic-phytate-levels
#3
Joan Perelló, M Gómez, M D Ferrer, N Y Rodríguez, C Salcedo, J M Buades, M M Pérez, J V Torregrosa, E Martín, F Maduell
BACKGROUND: Cardiovascular calcification (CVC) is a major concern in hemodialysis (HD) and the loss of endogenous modulators of calcification seems involved in the process. Phytate is an endogenous crystallization inhibitor and its low molecular mass and high water solubility make it potentially dialyzable. SNF472 (the hexasodium salt of phytate) is being developed for the treatment of calciphylaxis and CVC in HD patients. We aimed to verify if phytate is lost during dialysis, and evaluate SNF472's behaviour during dialysis...
January 19, 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/29348870/n%C3%AE%C2%B5-carboxymethyl-lysine-promotes-calcium-deposition-in-vsmcs-via-intracellular-oxidative-stress-induced-pdk4-activation-and-alters-glucose-metabolism
#4
Wen-Qi Ma, Xi-Qiong Han, Ying Wang, Xin Wang, Yi Zhu, Nai-Feng Liu
Diabetes and vascular calcification are intrinsically linked. We previously reported that advanced glycation end products (AGEs) accelerate calcium deposition in vascular smooth muscle cells (VSMCs) via excessive oxidative stress. However, the underlying mechanism remains poorly understood. Pyruvate dehydrogenase kinase 4 (PDK4) is an important mitochondrial matrix enzyme in cellular energy metabolism. Since hyperactivation of PDK4 has been reported in calcified vessels and in patients with diabetes mellitus, inhibition of PDK4 expression may be a strategy for the prevention of diabetic vascular calcification...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29336903/one-year-experience-of-a-regional-service-model-of-teleconsultation-for-planning-and-treatment-of-complex-thoracoabdominal-aortic-disease
#5
Emiliano Chisci, Gianmarco de Donato, Aaron Fargion, Giorgio Ventoruzzo, Gianbattista Parlani, Carlo Setacci, Leonardo Ercolini, Stefano Michelagnoli
OBJECTIVE: The objective of this study was to report the methodology and 1-year experience of a regional service model of teleconsultation for planning and treatment of complex thoracoabdominal aortic disease (TAAD). METHODS: Complex TAADs without a feasible conventional surgical repair were prospectively evaluated by vascular surgeons of the same public health service (National Health System) located in a huge area of 22,994 km2 with 3.7 million inhabitants and 11 tertiary hospitals...
January 11, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29336616/study-of-the-osteoprotegerin-receptor-activator-of-nuclear-factor-kb-ligand-system-association-with-inflammation-and-atherosclerosis-in-systemic-sclerosis
#6
Rania M Gamal, Walid M Gamal, Abeer M Ghandour, Hanan Sayed M Abozaid, Mona Embarek Mohamed, Yasser Emad, Ahmed Abdel Galeel
OBJECTIVE: we aimed to study systemic sclerosis patients in order to assess osteoprotegerin/Receptor activator of nuclear factor-kB ligand (OPG/RANKL) system and find the relation of these biomarkers with the clinical features of the disease, the carotid intima thickness, markers of inflammation, lipid profile, and other laboratory characteristics. METHODS: both the level of (RANKL), (OPG) in sera of participants, in 30 (SSc) patients and the atherosclerotic changes affecting the common carotid artery were measured and, were compared to 30 healthy controls matched for age and sex...
January 16, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29331722/effect-of-vitamin-d-supplementation-on-serum-sclerostin-levels-in-chronic-kidney-disease
#7
REVIEW
Ashok Kumar Yadav, Vivek Kumar, Debasish Banerjee, Krishan Lal Gupta, Vivekanand Jha
Vitamin D deficiency, cardiovascular disease and abnormal bone mineral metabolism are common in chronic kidney disease (CKD). Abnormal bone mineral metabolism has been linked to vascular calcification in CKD. Sclerostin has emerged as an important messenger in cross talk between bone-vascular axis. We analyzed sclerostin in subjects who participated in the randomized, double blind, placebo controlled trial investigating the effect of cholecalciferol supplementation on vascular function in non-diabetic CKD stage G3-4 and vitamin D ≤20ng/ml [CTRI/2013/05/003648]...
January 10, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29330911/title-prognostic-significance-of-arterial-stiffness-and-osteoprotegerin-in-patients-with-stable-coronary-artery-disease
#8
Gerasimos Siasos, Evangelos Oikonomou, Konstantinos Maniatis, Georgios Georgiopoulos, Eleni Kokkou, Vasiliki Tsigkou, Marina Zaromitidou, Alexis Antonopoulos, Manolis Vavuranakis, Christodoulos Stefanadis, Athanasios G Papavassiliou, Dimitris Tousoulis
BACKGROUND: Arterial stiffness and vascular calcification significantly contribute to coronary atherosclerosis progression. The prognostic value of increased arterial stiffness and vascular calcification in subjects with stable coronary artery disease (CAD) after percutaneous coronary intervention(PCI) is currently under question. MATERIALS AND METHODS: We randomly enrolled 262 patients with stable CAD one month after successful PCI. Carotid femoral pulse wave velocity (PWV) was measured as a well-established index of central aortic stiffness...
January 13, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29330517/iron-induced-calcification-in-human-aortic-vascular-smooth-muscle-cells-through-interleukin-24-il-24-with-without-tnf-alpha
#9
Sayuri Kawada, Yasuyuki Nagasawa, Mutsuki Kawabe, Hideki Ohyama, Aritoshi Kida, Nahoko Kato-Kogoe, Masayoshi Nanami, Yukiko Hasuike, Takahiro Kuragano, Hiromitsu Kishimoto, Keiji Nakasho, Takeshi Nakanishi
In CKD patients, arteriosclerotic lesions, including calcification, can occur in vascular smooth muscle cells in a process called Moenckeberg's medial arteriosclerosis. Iron overload induces several complications, including the acceleration of arteriosclerosis. However, the relationship between Moenckeberg's arteriosclerosis in vascular smooth muscle cells and iron accumulation has remained unknown. We tested the accelerated effect of iron on calcification in cultured human aortic vascular smooth muscle cells (HASMCs)...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29326493/renal-mitochondria-can-withstand-hypoxic-ischemic-injury-secondary-to-renal-failure-in-uremic-rats-pretreated-with-sodium-thiosulfate
#10
Dhivya Mohan, Eswari Dhivya Balasubramanian, Sriram Ravindran, Gino A Kurian
BACKGROUND: Sodium thiosulfate (STS) is a potent drug used to treat calcific uremic arteriopathy in dialysis patients and its mode of action is envisaged by calcium chelation and antioxidant potential. STS's action on mitochondrial dysfunction, one of the major players in the pathology of vascular calcification is yet to be explored. METHODS: Adenine (0.75%, 28 days)-treated vascular calcified rat kidney was used to isolate mitochondria, where the animal was administered with or without STS for 28 days...
July 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29317227/prolonged-exposure-to-1-25-oh-2d3-and-high-ionized-calcium-induces-fgf-23-production-in-intestinal-epithelium-like-caco-2-monolayer-a-local-negative-feedback-for-preventing-excessive-calcium-transport
#11
Mayuree Rodrat, Kannikar Wongdee, Nattapon Panupinthu, Jirawan Thongbunchoo, Jarinthorn Teerapornpuntakit, Nateetip Krishnamra, Narattaphol Charoenphandhu
Overdose of oral calcium supplement and excessive intestinal calcium absorption can contribute pathophysiological conditions, e.g., nephrolithiasis, vascular calcification, dementia, and cardiovascular accident. Since our previous investigation has indicated that fibroblast growth factor (FGF)-23 could abolish the 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]-enhanced calcium absorption, we further hypothesized that FGF-23 produced locally in the enterocytes might be part of a local negative feedback loop to regulate calcium absorption...
January 6, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29310150/noninvasive-vascular-assessment-of-lower-extremity-wounds-in-diabetics-are-we-able-to-predict-perfusion-deficits
#12
Iram Naz, Elliot Walters, Cameron M Akbari, Christopher E Attinger, Paul J Kim
Vascular assessment of the lower extremity is a critical step in any patient presenting with lower extremity chronic wounds to predict the likelihood of healing and risk of amputation. This concept is vital in patients with diabetes due to their complex vascular anatomy and disease distribution. Three arteries supply the six angiosomes of the lower extremity (i.e., three-dimensional blocks of tissue fed by a "source" artery in the foot and ankle). In diabetic patients, assessment of adequate blood flow to the lower extremities is complicated by the presence of arterial calcification, associated neuropathy, and inflammation...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29308365/neonatal-intramural-calcification-in-jejunal-atresia-case-report-of-a-rare-phenomenon
#13
S Suchitha, B N Kumarguru, Sunila, G V Manjunath
Intramural calcification in intestinal atresia is a rare type of intra-abdominal calcification. The exact etiology of intramural calcification remains obscure. A 1-day-old newborn male baby presented with signs of intestinal obstruction and was diagnosed to have jejunal atresia. The newborn underwent laparotomy with resection of atretic and dilated part of the small bowel. Histology of atretic part of jejunum and adjacent area revealed intramural calcification with extensive foreign-body giant cell reaction...
October 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29304096/exogenous-bmp7-in-aortae-of-rats-with-chronic-uremia-ameliorates-expression-of-profibrotic-genes-but-does-not-reverse-established-vascular-calcification
#14
Eva Gravesen, Maria Lerche Mace, Anders Nordholm, Jacob Hofman-Bang, Keith Hruska, Carsten Haagen Nielsen, Andreas Kjær, Klaus Olgaard, Ewa Lewin
Hyperphosphatemia and vascular calcification are frequent complications of chronic renal failure and bone morphogenetic protein 7 (BMP7) has been shown to protect against development of vascular calcification in uremia. The present investigation examined the potential reversibility of established uremic vascular calcification by treatment of uremic rats with BMP7. A control model of isogenic transplantation of a calcified aorta from uremic rats into healthy littermates examined whether normalization of the uremic environment reversed vascular calcification...
2018: PloS One
https://www.readbyqxmd.com/read/29303380/should-vitamin-k-be-supplemented-instead-of-antagonised-in-patients-with-idiopathic-pulmonary-fibrosis
#15
Bart de Brouwer, Ianthe Piscaer, Jan H von der Thusen, Jan C Grutters, Roger Eg Schutgens, Emiel Fm Wouters, Rob Janssen
There is an ongoing need for additional interventions in idiopathic pulmonary fibrosis (IPF) as antifibrotic drugs currently available only inhibit and do not stall disease progression. Vitamin K is a co-factor for the activation of coagulation factors. However, it is also required to activate proteins with functions outside of the coagulation cascade, such as matrix Gla protein (MGP), a defender against soft tissue calcification. Vitamin K antagonists are anticoagulants that are, for unknown reasons, associated with increased mortality in IPF...
January 5, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29301790/chronic-kidney-disease-circulating-calciprotein-particles-and-extracellular-vesicles-promote-vascular-calcification-a-role-for-grp-gla-rich-protein
#16
Carla S B Viegas, Lúcia Santos, Anjos L Macedo, António A Matos, Ana P Silva, Pedro L Neves, An Staes, Kris Gevaert, Rute Morais, Cees Vermeer, Leon Schurgers, Dina C Simes
OBJECTIVE: Inhibition of mineral crystal formation is a crucial step in ectopic calcification. Serum calciprotein particles (CPPs) have been linked to chronic kidney disease (CKD) calcification propensity, but additional knowledge is required to understand their function, assemblage, and composition. The role of other circulating nanostructures, such as extracellular vesicles (EVs) in vascular calcification is currently unknown. Here, we investigated the association of GRP (Gla-rich protein) with circulating CPP and EVs and the role of CKD CPPs and EVs in vascular calcification...
January 4, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29301759/deletion-of-i%C3%AE%C2%BAb-kinase-%C3%AE-in-smooth-muscle-cells-induces-vascular-calcification-through-%C3%AE-catenin-runt-related-transcription-factor-2-signaling
#17
Isehaq Al-Huseini, Noboru Ashida, Takeshi Kimura
BACKGROUND: Vascular calcification was previously considered as an advanced phase of atherosclerosis; however, recent studies have indicated that such calcification can appear in different situations. Nevertheless, there has been a lack of mechanistic insight to explain the difference. For example, the roles of nuclear factor-κB, a major regulator of inflammation, in vascular calcification are poorly explored, although its roles in atherosclerosis were well documented. Herein, we investigated the roles of nuclear factor-κB signaling in vascular calcification...
January 4, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29300243/clinical-relevance-of-aortic-stiffness-in-end-stage-renal-disease-and-diabetes-implication-for-hypertension-management
#18
Alexandra Yannoutsos, Sola Aoun Bahous, Michel E Safar, Jacques Blacher
: Evidence suggests that aortic stiffness may antedate and contribute initially to the development of hypertension and cardiovascular risk (CVR). In treated hypertensive patients, both diabetes and end-stage renal disease (ESRD) are comorbid conditions associated with increased aortic stiffness and high CVR. Thus, the pathophysiological relationship between aortic stiffness, blood pressure (BP) and CVR may have clinical implication in the management of hypertension. In patients with diabetes or ESRD, aortic stiffness is a significant predictor of CVR, independently of BP control...
January 2, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29299089/hamartoma-of-the-spleen-splenoma-with-calcifications-in-a-child-with-beta-thalassemia-a-case-report
#19
Dario Giambelluca, Dario Picone, Giuseppe Lo Re, Salvatore Pappalardo, Placido Romeo
Splenic hamartoma (or splenoma) is a rare, benign, vascular tumor, often incidentally found at imaging, surgery or autopsy. Albeit usually asymptomatic and rare in children, when it occurs in the pediatric population it is more commonly symptomatic. We report a case of a 15-year-old girl with iron-deficiency anemia and beta-thalassemia, who had a large (10 × 8 × 7 cm) splenic lesion with calcifications, incidentally found during follow-up for splenomegaly and histologically characterized as hamartoma with calcified areas...
May 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29288724/serum-fetuin-a-levels-in-patients-with-bilateral-basal-ganglia-calcification
#20
Bekir Enes Demiryurek, Asli Aksoy Gundogdu
BACKGROUND AND PURPOSE: The idiopathic basal ganglia calcification (Fahr syndrome) may occur due to senility. Fetuin-A is a negative acute phase reactant which inhibits calcium-phosphorus precipitation and vascular calcification. In this study, we aimed to evaluate whether serum fetuin-A levels correlate with bilateral basal ganglia calcification. METHOD: Forty-five patients who had bilateral basal ganglia calcification on brain CT were selected according to the inclusion and exclusion criteria, and 45 age and gender-matched subjects without basal ganglia calcification were included for the control group...
December 27, 2017: Neuroscience Letters
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