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Reversing calcification

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https://www.readbyqxmd.com/read/29748594/reassessing-endothelial-to-mesenchymal-transition-in-cardiovascular-diseases
#1
REVIEW
Yan Li, Kathy O Lui, Bin Zhou
Endothelial cells and mesenchymal cells are two different cell types with distinct morphologies, phenotypes, functions, and gene profiles. Accumulating evidence, notably from lineage-tracing studies, indicates that the two cell types convert into each other during cardiovascular development and pathogenesis. During heart development, endothelial cells transdifferentiate into mesenchymal cells in the endocardial cushion through endothelial-to-mesenchymal transition (EndoMT), a process that is critical for the formation of cardiac valves...
May 10, 2018: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29713041/rna-sequencing-of-xp11-translocation-associated-cancers-reveals-novel-gene-fusions-and-distinctive-clinicopathologic-correlations
#2
Xiao-Tong Wang, Qiu-Yuan Xia, Sheng-Bing Ye, Xuan Wang, Rui Li, Ru Fang, Shan-Shan Shi, Ru-Song Zhang, Xiao Tan, Jie-Yu Chen, Ke Sun, Xiao-Dong Teng, Heng-Hui Ma, Zhen-Feng Lu, Xiao-Jun Zhou, Qiu Rao
Both Xp11 translocation renal cell carcinomas and the corresponding mesenchymal neoplasms are characterized by a variety of gene fusions involving TFE3. It has been known that tumors with different gene fusions may have different clinicopathologic features; however, further in-depth investigations of subtyping Xp11 translocation-associated cancers are needed in order to explore more meaningful clinicopathologic correlations. A total of 22 unusual cases of Xp11 translocation-associated cancers were selected for the current study; 20 cases were further analyzed by RNA sequencing to explore their TFE3 gene fusion partners...
April 30, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29692540/sonographic-features-of-invasive-ductal-breast-carcinomas-predictive-of-malignancy-grade
#3
Kanika Gupta, Meenakshisundaram Kumaresan, Bhuvaneswari Venkatesan, Tushar Chandra, Aruna Patil, Maya Menon
Context: Assessment of individual sonographic features provides vital clues about the biological behavior of breast masses and can assist in determining histological grade of malignancy and thereby prognosis. Aims: Assessment of individual sonographic features of biopsy proven invasive ductal breast carcinomas as predictors of malignancy grade. Settings and Design: A retrospective analysis of sonographic findings of 103 biopsy proven invasive ductal breast carcinomas...
January 2018: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29689558/fibulin-3-attenuates-phosphate-induced-vascular-smooth-muscle-cell-calcification-by-inhibition-of-oxidative-stress
#4
Trang T D Luong, Nadeshda Schelski, Beate Boehme, Manousos Makridakis, Antonia Vlahou, Florian Lang, Burkert Pieske, Ioana Alesutan, Jakob Voelkl
BACKGROUND/AIMS: Fibulin-3, an extracellular matrix glycoprotein, inhibits vascular oxidative stress and remodeling in hypertension. Oxidative stress is prevalent in chronic kidney disease (CKD) patients and is an important mediator of osteo-/chondrogenic transdifferentiation and calcification of vascular smooth muscle cells (VSMCs) during hyperphosphatemia. Therefore, the present study explored the effects of Fibulin-3 on phosphate-induced vascular calcification. METHODS: Experiments were performed in primary human aortic smooth muscle cells (HAoSMCs) treated with control or with phosphate without or with additional treatment with recombinant human Fibulin-3 protein or with hydrogen peroxide as an exogenous source of oxidative stress...
April 18, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29652075/impact-of-tgf-%C3%AE-family-related-growth-factors-on-chondrogenic-differentiation-of-adipose-derived-stem-cells-isolated-from-lipoaspirates-and-infrapatellar-fat-pads-of-osteoarthritic-patients
#5
E López-Ruiz, G Jiménez, W Kwiatkowski, E Montañez, F Arrebola, E Carrillo, S Choe, J A Marchal, M Perán
The success of cell-based approaches for the treatment of cartilage defects requires an optimal autologous cell source with chondrogenic differentiation ability that maintains its differentiated properties and stability following implantation. The objective of this study was to compare the chondrogenic capacity of mesenchymal stem cells (MSCs) isolated from lipoaspirates (ASCs) and the infrapatellar fat pad (IFPSCs) of osteoarthritic patients and treated with transforming growth factor (TGF)-β family-related growth factors...
April 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29643466/etidronate-prevents-dystrophic-cardiac-calcification-by-inhibiting-macrophage-aggregation
#6
Carolin Bauer, Olivier le Saux, Viola Pomozi, Redouane Aherrahrou, Rene Kriesen, Stephanie Stölting, Annett Liebers, Thorsten Kessler, Heribert Schunkert, Jeanette Erdmann, Zouhair Aherrahrou
Cardiovascular calcification is associated with high risk of vascular disease. This involves macrophage infiltration of injured vascular tissue and osteoclast-related processes. Splenic monocytes from mice, that are predisposed (C3H) or resistant (B6) to calcification, were isolated and differentiated in vitro with M-CSF to generate macrophages, which aggregate to form multinucleated (MN) cells in the presence of RANKL. MN cell formation was significantly decreased in monocytes from resistant compared with calcifying mice...
April 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29618597/regulation-of-vascular-calcification-by-growth-hormone-releasing-hormone-and-its-agonists
#7
Jian Shen, Ning Zhang, Yi-Nuo Lin, PingPing Xiang, Xian-Bao Liu, Peng-Fei Shan, Xin-Yang Hu, Wei Zhu, Yao-Liang Tang, Keith A Webster, Ren-Zhi Cai, Andrew Schally, Jian'an Wang, Hong Yu
<u>Rationale:</u> Vascular calcification (VC) is a marker of the severity of atherosclerotic disease. Hormones play important roles in regulating calcification; estrogen and parathyroid hormones exert opposing effects, the former alleviating VC and the latter exacerbating it. So far no treatment strategies have been developed to regulate clinical VC. <u>Objective:</u> To investigate the effect of growth hormone-releasing hormone (GHRH) and its agonist (GHRH-A) on the blocking of VC in a mouse model...
April 4, 2018: Circulation Research
https://www.readbyqxmd.com/read/29535889/effects-of-1-25-dihydroxyvitamin-d-3-on-the-differentiation-of-mc3t3-e1-osteoblast-like-cells
#8
Hyun-Soo Kim, Mingzhen Zheng, Do-Kyung Kim, Won-Pyo Lee, Sang-Joun Yu, Byung-Ock Kim
Purpose: The purpose of this study was to evaluate the effects of 1,25-dihydroxyvitamin D3 on the proliferation, differentiation, and matrix mineralization of MC3T3-E1 osteoblast-like cells in vitro. Methods: MC3T3-E1 osteoblastic cells and 1,25-dihydroxyvitamin D3 were prepared. Cytotoxic effects and osteogenic differentiation were evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, alkaline phosphatase (ALP) activity assay, ALP staining, alizarin red S staining, and reverse transcription-polymerase chain reaction (RT-PCR) for osteogenic differentiation markers such as ALP, collagen type I (Col-I), osteocalcin (OCN), vitamin D receptor (VDR), and glyceraldehyde 3-phosphate dehydrogenase...
February 2018: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29531756/microrna-8059-as-a-marker-for-the-presence-and-extent-of-coronary-artery-calcification
#9
Philippa Howlett, Jane K Cleal, Huihai Wu, Nikunj Shah, Alex Horton, Nick Curzen, Michael Mahmoudi
Objective: MicroRNAs (miRNAs) may serve as potential biomarkers in a variety of pathologies. The aim of this study was to determine whether miRNAs could serve as blood-based markers of isolated coronary artery calcification (CAC) defined as CAC in the absence of an underlying metabolic abnormality. Methods: 24 age-matched and sex-matched patients who had been referred for elective CT coronary calcium score and angiography as part of investigation for cardiac chest pain were recruited...
2018: Open Heart
https://www.readbyqxmd.com/read/29531291/arterial-stiffness-in-end-stage-renal-disease-pathogenesis-clinical-epidemiology-and-therapeutic-potentials
#10
REVIEW
Panagiotis I Georgianos, Maria I Pikilidou, Vassilios Liakopoulos, Elias V Balaskas, Pantelis E Zebekakis
Arterial stiffness is an important risk factor for cardiovascular morbidity and mortality in patients with end-stage renal disease (ESRD). Arterial stiffness aggravates cardiovascular risk via multiple pathways, such as augmentation of aortic systolic pressure, subendocardial hypoperfusion, and excess pulsatile energy transmission from macro- to microcirculation. Pathogenesis of the arteriosclerotic process in ESRD is complex and not yet fully understood. Several factors unique to ESRD, such as mineral metabolism disturbances, vascular calcifications, formation of advanced glycation end-products, and acute and chronic volume overload, are proposed to play a particular role in the progression of arteriosclerosis in ESRD...
May 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29523750/altered-microbiome-in-chronic-kidney-disease-systemic-effects-of-gut-derived-uremic-toxins
#11
REVIEW
Wei Ling Lau, Javad Savoj, Michael B Nakata, Nosratola D Vaziri
In chronic kidney disease (CKD), influx of urea and other retained toxins exerts a change in the gut microbiome. There is decreased number of beneficial bacteria that produce short-chain fatty acids, an essential nutrient for the colonic epithelium, concurrent with an increase in bacteria that produce uremic toxins such as indoxyl sulphate, p -cresyl sulphate, and trimethylamine-N-oxide (TMAO). Due to intestinal wall inflammation and degradation of intercellular tight junctions, gut-derived uremic toxins translocate into the bloodstream and exert systemic effects...
March 15, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29479383/the-relationship-between-absence-coronary-artery-calcification-and-myocardial-perfusion-single-photon-emission-computed-tomography
#12
Muhannad Alanazi, Alaa AlDuraibi, Mohamamed M Shoukri, Ahmed Fathala
Background: Coronary artery calcification score (CACS) is well validated prognostic tool in coronary artery disease (CAD). The data on the prevalence of myocardial ischemia on myocardial perfusion single photon emission computed tomography (MPS) in symptomatic patients with zero CACS and low to intermediate risk probability is lacking and controversial. The aim of our study was to evaluate the capability of zero CACS to exclude myocardial ischemia on MPS. Methods: A total of 157 patients ((mean age 53 ± 10 years), 88 (56%) female patients, 69 (44%) male patients) who were suspected to have CAD and having low to intermediate pretest likelihood for CAD underwent CACS on dedicated computed tomography (CT) scanners...
February 2018: Cardiology Research
https://www.readbyqxmd.com/read/29434762/parathyroid-hormone-promotes-osteoblastic-differentiation-of-endothelial-cells-via-the-extracellular-signal-regulated-protein-kinase-1-2-and-nuclear-factor-%C3%AE%C2%BAb-signaling-pathways
#13
Zhi-Yuan Cheng, Ting Ye, Qiu-Yang Ling, Ting Wu, Gang-Yong Wu, Gang-Jun Zong
Vascular calcification (VC) occurs in patients with chronic kidney disease (CKD) and contributes to cardiovascular dysfunction and mortality. Parathyroid hormone (PTH) is a crucial regulator of VC. High PTH serum levels constitute as a major risk factor for patients with CKD. However, the effect and mechanism of PTH on osteoblastic differentiation in endothelial cells have not been fully elucidated. In the present study, the role of PTH in VC was investigated using an in vitro calcification model. Endothelial cells were stimulated with PTH in the femto- to picomolar range...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29407002/a-hypothetical-pathogenesis-model-for-androgenic-alopecia-clarifying-the-dihydrotestosterone-paradox-and-rate-limiting-recovery-factors
#14
Robert S English
Androgenic alopecia, also known as pattern hair loss, is a chronic progressive condition that affects 80% of men and 50% of women throughout a lifetime. But despite its prevalence and extensive study, a coherent pathology model describing androgenic alopecia's precursors, biological step-processes, and physiological responses does not yet exist. While consensus is that androgenic alopecia is genetic and androgen-mediated by dihydrotestosterone, questions remain regarding dihydrotestosterone's exact role in androgenic alopecia onset...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29393437/polysaccharide-from-fuzi-protects-against-ox%C3%A2-ldl%C3%A2-induced-calcification-of-human-vascular-smooth-muscle-cells-by-increasing-autophagic-activity
#15
Lizhen Liao, Xiaodong Zhuang, Weidong Li, Qibiao Su, Jie Zhao, Ying Liu
Polysaccharide from Fuzi (FPS) is a water‑soluble polysaccharide isolated from the traditional Chinese herbal medicine Fuzi. It has been demonstrated to protect hepatocytes against ischemia‑reperfusion injury through its potent antioxidant effects, and to attenuate starvation‑induced cytotoxicity in H9c2 cells by increasing autophagic activity. In the present study, Alizarin Red S staining was used to detect mineral deposition and reverse transcription‑quantitative polymerase chain reaction was used to detect the core binding factor α1 and smooth muscle 22α mRNA expression...
April 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29361354/gaze-evoked-deformations-in-optic-nerve-head-drusen-repetitive-shearing-as-a-potential-factor-in-the-visual-and-vascular-complications
#16
Patrick A Sibony, Junchao Wei, Ian A Sigal
PURPOSE: To determine if ocular ductions deform intrapapillary and peripapillary tissues in optic nerve head drusen (ONHD) and to compare these deformations with healthy eyes and eyes with other optic neuropathies. DESIGN: Observational case series. PARTICIPANTS: Twenty patients with ONHD. METHODS: Axial rasters of the optic nerve from a spectral-domain OCT device (Cirrus 5000; Carl Zeiss Meditec, Inc, Dublin, CA) were used to analyze the shape of the peripapillary basement membrane (ppBM) layer in 20 confirmed cases of ONHD...
January 17, 2018: Ophthalmology
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
#17
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/29304096/exogenous-bmp7-in-aortae-of-rats-with-chronic-uremia-ameliorates-expression-of-profibrotic-genes-but-does-not-reverse-established-vascular-calcification
#18
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/29300243/clinical-relevance-of-aortic-stiffness-in-end-stage-renal-disease-and-diabetes-implication-for-hypertension-management
#19
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/29291210/the-role-of-the-placenta-in-prenatally-acquired-zika-virus-infection
#20
EDITORIAL
Mohammad Zare Mehrjardi, Farzaneh Shobeirian
Zika virus (ZIKV) is an arthropod-borne arbovirus from the family Flaviviridae , which has been recently confirmed to cause severe neurological abnormalities (such as microcephaly, brain parenchymal calcification, hydrocephalus, and malformations of cortical development) in the infected fetuses. The Placenta plays a multifold role in prenatally acquired ZIKV infection. It serves as a port of virus transmission to the fetus, and also can be directly affected by ZIKV leading to a diminished fetal blood supply or a disrupted/changed biological mediators' synthesis...
September 2017: Virusdisease
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