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Cardiovascular , Gene expression

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https://www.readbyqxmd.com/read/28098859/dna-damage-response-defect-in-williams-beuren-syndrome
#1
David Guenat, Giuseppe Merla, Eric Deconinck, Christophe Borg, Pierre-Simon Rohrlich
Williams-Beuren syndrome (WBS, no. OMIM 194050) is a rare multisystem genetic disorder caused by a microdeletion on chromosome 7q11.23 and characterized by cardiovascular malformations, mental retardation, and a specific facial dysmorphism. Recently, we reported that a series of non‑Hodgkin's lymphoma occurs in children with WBS and thus hypothesized that a predisposition to cancer may be associated with this genetic disorder. The aim of the present study was to ascertain the role played by three genes hemizygously deleted in WBS (RFC2, GTF2I and BAZ1B) in DNA damage response pathways...
January 17, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28096099/high-saturated-fat-diet-increases-circulating-angiotensin-converting-enzyme-which-is-enhanced-by-the-rs4343-polymorphism-defining-persons-at-risk-of-nutrient-dependent-increases-of-blood-pressure
#2
Rita Schüler, Martin A Osterhoff, Turid Frahnow, Anne-Cathrin Seltmann, Andreas Busjahn, Stefan Kabisch, Li Xu, Alexander S Mosig, Joachim Spranger, Matthias Möhlig, Silke Hornemann, Michael Kruse, Andreas F H Pfeiffer
BACKGROUND: Angiotensin-converting enzyme (ACE) plays a major role in blood pressure regulation and cardiovascular homeostasis. Contrary to the assumption that ACE levels are stable, circulating ACE has been shown to be altered in obesity and weight loss. We sought to examine effects of a high-saturated-fat (HF) diet on ACE within the NUtriGenomic Analysis in Twins (NUGAT) study. METHODS AND RESULTS: Forty-six healthy and nonobese twin pairs initially consumed a carbohydrate-rich, low-fat diet over a period of 6 weeks to standardize for nutritional behavior prior to the study, followed by 6 weeks of HF diet under isocaloric conditions...
January 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28094123/myocardial-and-serum-galectin-3-expression-dynamics-marks-post-myocardial-infarction-cardiac-remodelling
#3
Umesh C Sharma, Wassim Mosleh, Milind R Chaudhari, Rujuta Katkar, Brian Weil, Chris Evelo, Thomas R Cimato, Saraswati Pokharel, W Matthijs Blankesteijn, Gen Suzuki
BACKGROUND: Acute myocardial infarction (MI) causes significant changes in cardiac morphology and function. Galectin-3 is a novel and potentially therapeutically important mediator of cardiac remodelling. Myocardial and serum galectin-3 expression dynamics in response to the early cardiovascular outcomes after acute MI are not fully elucidated. METHODS: We first performed a comprehensive longitudinal microarray analyses in mice after acute MI. We then measured the serum levels of galectin-3 in a translational porcine model of coronary microembolism-induced post-ischaemic cardiac remodelling...
December 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28089144/essential-role-of-icam-1-in-aldosterone-induced-atherosclerosis
#4
Vincenzo Marzolla, Andrea Armani, Caterina Mammi, Mary E Moss, Vittoria Pagliarini, Laura Pontecorvo, Antonella Antelmi, Andrea Fabbri, Giuseppe Rosano, Iris Z Jaffe, Massimiliano Caprio
OBJECTIVE: Elevated aldosterone is associated with increased risk of atherosclerosis complications, whereas treatment with mineralocorticoid receptor (MR) antagonists decreases the rate of cardiovascular events. Here we test the hypothesis that aldosterone promotes early atherosclerosis by modulating intercellular adhesion molecule-1 (ICAM-1) expression and investigate the molecular mechanisms by which aldosterone regulates ICAM-1 expression. METHODS AND RESULTS: Apolipoprotein-E (ApoE)(-/-) mice fed an atherogenic diet and treated with aldosterone for 4weeks showed increased vascular expression of ICAM-1, paralleled by enhanced atherosclerotic plaque size in the aortic root...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28078099/aligning-the-planets-the-role-of-nurses-in-the-care-of-patients-with-non-st-elevation-myocardial-infarction
#5
Christi Deaton, Rachel Johnson, Maggie Evans, Adam Timmis, Justin Zaman, Harry Hemingway, Jacqueline Hughes, Gene Feder, Helen Cramer
BACKGROUND: Studies have shown variation in care for patients with non-ST elevation myocardial infarction (NSTEMI), including in the roles of specialist and advanced practice nurses in diagnosis, treatment and coordination of care. AIM: The aim of this study was to describe the roles and responsibilities of specialist and advanced practice nurses in providing care for patients with NSTEMI. METHODS: Secondary analysis of observational field notes and interviews from an ethnographic study of variation in care for NSTEMI patients in 10 UK hospitals conducted 2011-2012...
January 2017: Nursing Open
https://www.readbyqxmd.com/read/28073865/angiogenic-gene-therapy-in-cardiovascular-diseases-dream-or-vision
#6
REVIEW
Seppo Ylä-Herttuala, Charles Bridges, Michael G Katz, Petra Korpisalo
Chronic cardiovascular diseases are significant health problems. Although current treatment strategies have tremendously improved disease management, up to 30% of these patients cannot be successfully treated with current treatment approaches and new treatment strategies are clearly needed. Gene therapy and therapeutic vascular growth may provide a new treatment option for these patients. Several growth factors, like vascular endothelial growth factors, fibroblast growth factors and hepatocyte growth factor have been tested in clinical trials...
January 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28070532/evaluation-of-scd-and-fasn-gene-expression-in-baluchi-iran-black-and-arman-sheep
#7
Salmani Izadi Mohammad, Naserian Abbas Ali, Nasiri Mohammad Reza, Majidzadeh Heravi Reza, Valizadeh Reza
BACKGROUND: With the increasing concern for health and nutrition, dietary fat has attracted considerable attention. The composition of fatty acids in the diet is important because they are associated with major diseases including cancers, diabetes, and cardiovascular disease. The fatty acid synthase (FASN) and stearoyl-CoA desaturase (delta-9-desaturase) (SCD) genes affect fatty acid composition (1). The expression of SCD and FASN genes is related to an increase in conjugated linoleic acid (CLA) in dairy products, which benefits human health...
October 2016: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28067713/widespread-down-regulation-of-cardiac-mitochondrial-and-sarcomeric-genes-in-patients-with-sepsis
#8
Scot J Matkovich, Belal Al Khiami, Igor R Efimov, Sarah Evans, Justin Vader, Ashwin Jain, Bernard H Brownstein, Richard S Hotchkiss, Douglas L Mann
OBJECTIVES: The mechanism(s) for septic cardiomyopathy in humans is not known. To address this, we measured messenger RNA alterations in hearts from patients who died from systemic sepsis, in comparison to changed messenger RNA expression in nonfailing and failing human hearts. DESIGN: Identification of genes with altered abundance in septic cardiomyopathy, ischemic heart disease, or dilated cardiomyopathy, in comparison to nonfailing hearts. SETTING: ICUs at Barnes-Jewish Hospital, St...
January 6, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28066139/regulation-of-vascular-smooth-muscle-phenotype-by-cross-regulation-of-kr%C3%A3-ppel-like-factors
#9
Jung Min Ha, Sung Ji Yun, Seo Yeon Jin, Hye Sun Lee, Sun Ja Kim, Hwa Kyoung Shin, Sun Sik Bae
Regulation of vascular smooth muscle cell (VSMC) phenotype plays an essential role in many cardiovascular diseases. In the present study, we provide evidence that krüppel-like factor 8 (KLF8) is essential for tumor necrosis factor α (TNFα)-induced phenotypic conversion of VSMC obtained from thoracic aorta from 4-week-old SD rats. Stimulation of the contractile phenotype of VSMCs with TNFα significantly reduced the VSMC marker gene expression and KLF8. The gene expression of KLF8 was blocked by TNFα stimulation in an ERK-dependent manner...
January 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28065846/the-association-of-heart-failure-related-micrornas-with-neurohormonal-signaling
#10
Yei-Tsung Chen, Juan Wang, Kai Sing Tong, Lee Lee Wong, Oi Wah Liew, Arthur Mark Richards
Heart failure (HF) is a widely prevalent syndrome imposing a significant burden of morbidity and mortality world-wide. Differential circulating microRNA profiles observed in HF cohorts suggest the diagnostic utility of microRNAs as biomarkers. Given their function in fine tuning gene expression, alternations in microRNA landscape could reflecting the underlying mechanisms of disease and present potential therapeutic targets. Using multiple computational target predicting algorithms together with the luciferase-based reporting platform, the interactions between HF-related microRNAs and the 3' untranslated regions (3'UTRs) of neurohormone associated genes were examined and compared...
January 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28065787/intestinal-farnesoid-x-receptor-controls-transintestinal-cholesterol-excretion-in-mice
#11
Jan Freark de Boer, Marleen Schonewille, Marije Boesjes, Henk Wolters, Vincent W Bloks, Trijnie Bos, Theo H van Dijk, Angelika Jurdzinski, Renze Boverhof, Justina C Wolters, Jan A Kuivenhoven, Jan M van Deursen, Ronald P J Oude Elferink, Antonio Moschetta, Claus Kremoser, Henkjan J Verkade, Folkert Kuipers, Albert K Groen
BACKGROUND & AIMS: The role of the intestine in the maintenance of cholesterol homeostasis is increasingly recognized. Fecal excretion of cholesterol is the last step in the atheroprotective reverse cholesterol transport pathway, to which biliary and transintestinal cholesterol excretion (TICE) contribute. The mechanisms controlling the flux of cholesterol through the TICE pathway are, however, poorly understood. We aimed to identify mechanisms that regulate and stimulate TICE. METHODS: We performed studies with C57Bl/6J mice, as well as mice with intestine-specific knockout of the farnesoid X receptor (FXR), mice that express an FXR transgene specifically in the intestine, and ABCG8-knockout mice...
January 5, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28064010/vascular-endothelial-cells-senescence-is-associated-with-nod-like-receptor-family-pyrin-domain-containing-3-nlrp3-inflammasome-activation-via-reactive-oxygen-species-ros-thioredoxin-interacting-protein-txnip-pathway
#12
Yanlin Yin, Zhihui Zhou, Weiwei Liu, Qun Chang, Guanqun Sun, Yalei Dai
Endothelial dysfunction caused by endothelial cells senescence and chronic inflammation is tightly linked to the development of cardiovascular diseases. NLRP3 (NOD-like receptor family pyrin domain-containing3) inflammasome plays a central role in inflammatory response that is associated with diverse inflammatory diseases. This study explores the effects and possible mechanisms of NLRP3 inflammasome in endothelial cells senescence. Results show an increment of pro-inflammatory cytokine interleukin (IL) -1β secretion and caspase-1 activation during the senescence of endothelial cells induced by bleomycin...
January 4, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28063225/purification-of-small-molecule-induced-cardiomyocytes-from-human-induced-pluripotent-stem-cells-using-a-reporter-system
#13
Geun Hye Hwang, So Mi Park, Ho Jae Han, Joong Sun Kim, Seung Pil Yun, Jung Min Ryu, Ho Jin Lee, Woochul Chang, Su-Jin Lee, Jeong-Hee Choi, Jin-Sung Choi, Min Young Lee
In order to realize the practical use of human pluripotent stem cell (hPSC)-derived cardiomyocytes for the purpose of clinical use or cardiovascular research, the generation of large numbers of highly purified cardiomyocytes should be achieved. Here, we show an efficient method for cardiac differentiation of human induced pluripotent stem cells (hiPSCs) in chemically defined conditions and purification of hiPSC-derived cardiomyocytes using a reporter system. Regulation of the Wnt/β-catenin signaling pathway is implicated in the induction of the cardiac differentiation of hPSCs...
January 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28062576/cardiolipin-regulates-mitophagy-through-the-pkc-pathway
#14
Zheni Shen, Yiran Li, Alexander N Gasparski, Hagai Abeliovich, Miriam L Greenberg
Cardiolipin (CL), the signature phospholipid of mitochondrial membranes, is important for cardiovascular health, and perturbation of CL metabolism is implicated in cardiovascular disease (CVD). While the role of CL in mitochondrial function, biogenesis, and genome stability has been studied, recent findings indicate that it is essential for functions apart from mitochondrial bioenergetics. In this study, we report that mitophagy is perturbed in CL deficient yeast cells. Mutants of autophagy/mitophagy genes ATG8, ATG18 and ATG32 synthetically interact with CL synthase mutant crd1Δ CL-deficient cells exhibited decreased GFP-tagged mitochondrial proteins inside the vacuole and decreased free GFP, consistent with decreased mitophagy...
January 5, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28062181/epicatechin-downregulates-adipose-tissue-ccl19-expression-and-thereby-ameliorates-diet-induced-obesity-and-insulin-resistance
#15
T Sano, S Nagayasu, S Suzuki, M Iwashita, A Yamashita, T Shinjo, T Sanui, A Kushiyama, T Kanematsu, T Asano, F Nishimura
BACKGROUND AND AIMS: Epicatechin (EC) intake has been suggested to be beneficial for the prevention of cardiovascular disorders, and it is well known that adipose tissue inflammation is one of the major risk factors for coronary heart diseases. The purpose of the present study was to determine the in vitro and in vivo effects of EC on adipose tissue inflammation and obesity. METHODS AND RESULTS: DNA microarray analysis was performed to evaluate the effects of EC on gene expression in adipocytes co-cultured with bacterial endotoxin-stimulated macrophages...
November 23, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28060997/effect-of-hypercholesterolemia-on-myocardial-function-ischemia-reperfusion-injury-and-cardioprotection-by-preconditioning-postconditioning-and-remote-conditioning
#16
REVIEW
Ioanna Andreadou, Efstathios K Iliodromitis, Antigone Lazou, Anikó Görbe, Zoltán Giricz, Rainer Schulz, Péter Ferdinandy
Hypercholesterolemia is considered to be a principle risk factor for cardiovascular disease, having direct negative effects on the myocardium itself, in addition to the development of atherosclerosis. Since hypercholesterolemia affects global cardiac gene expression profile, among many other factors, increased myocardial oxidative stress, mitochondrial dysfunction and inflammation trigger apoptosis and this may account for myocardial dysfunction and increased susceptibility of the myocardium to infarction. In addition, numerous experimental and clinical studies revealed that hyperlcholesterolemia may interfere with the cardioprotective potential of conditioning mechanisms...
January 6, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28060535/circulating-micrornas-promising-biomarkers-involved-in-several-cancers-and-other-diseases
#17
Yicheng Zhao, Yuanyuan Song, Li Yao, Guangqi Song, Chunbo Teng
Recently, many studies indicated that microRNAs (miRNAs) stably existed in various body fluids, including serum, plasma, saliva, and urine. Such miRNAs that exist in mammalian body fluids are known as circulating miRNAs, and they can transmit signals between cells and regulate intracellular gene expression. Currently, we barely understand the characteristics, sources, secretion, uptake, and functions of newly generated miRNAs. Particularly, it has been shown that certain types of circulating miRNAs can provide effective clinical data, suggesting their roles as novel biomarkers for the early detection of diseases such as cancers, cardiovascular diseases, and diabetes...
January 6, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28060283/preparation-of-raav9-to-overexpress-or-knockdown-genes-in-mouse-hearts
#18
Jian Ding, Zhi-Qiang Lin, Jian-Ming Jiang, Christine E Seidman, Jonathan G Seidman, William T Pu, Da-Zhi Wang
Controlling the expression or activity of specific genes through the myocardial delivery of genetic materials in murine models permits the investigation of gene functions. Their therapeutic potential in the heart can also be determined. There are limited approaches for in vivo molecular intervention in the mouse heart. Recombinant adeno-associated virus (rAAV)-based genome engineering has been utilized as an essential tool for in vivo cardiac gene manipulation. The specific advantages of this technology include high efficiency, high specificity, low genomic integration rate, minimal immunogenicity, and minimal pathogenicity...
December 17, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28055289/cardiovascular-diseases-interplay-of-epigenetics
#19
Yog R Ahuja, Sanjeev Sharma, Vasavi Mohan
Several association studies have been carried out to elucidate the role of genetic variants in cardiovascular diseases (CVDs), while studies on the epigenome regulating gene expression changes are helping to understand the development of disease and factors promoting such changes. This review summarizes the different epigenetic aspects involved in cardiac development and disease along with current therapeutic interventions.
January 5, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28039940/epac-rap1-activated-mesenchymal-stem-cells-improve-cardiac-function%C3%A2-in-rat-model-of-myocardial-infarction
#20
Irfan Khan, Anwar Ali, Muhammad Aleem Akhter, Nadia Naeem, Maqsood Ahmed Chotani, Hana'a Iqbal, Nurul Kabir, Mehnaz Atiq, Asmat Salim
INTRODUCTION: Rap1, a member of Ras superfamily of small GTP-binding proteins, is involved in cardiovascular biology in numerous ways. It is an evolutionary conserved regulator of adhesion, polarity, differentiation and growth. AIMS: Our aim was to analyze Rap1 activated rat bone marrow mesenchymal stem cells (MSCs) for their potential role in adhesion and cardiac differentiation. METHODS: Myocardial infarction (MI) was produced in Sprague Dawley (SD) rats through occlusion of the left anterior descending coronary artery...
December 31, 2016: Cardiovascular Therapeutics
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