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Epicardial adipose tissue and obesity

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https://www.readbyqxmd.com/read/28144387/from-the-liver-to-the-heart-cardiac-dysfunction-in-obese-children-with-non-alcoholic-fatty-liver-disease
#1
EDITORIAL
Anna Di Sessa, Giuseppina Rosaria Umano, Emanuele Miraglia Del Giudice, Nicola Santoro
In the last decades the prevalence of non-alcoholic fatty liver disease (NAFLD) has increased as a consequence of the childhood obesity world epidemic. The liver damage occurring in NAFLD ranges from simple steatosis to steatohepatitis, fibrosis and cirrhosis. Recent findings reported that fatty liver disease is related to early atherosclerosis and cardiac dysfunction even in the pediatric population. Moreover, some authors have shown an association between liver steatosis and cardiac abnormalities, including rise in left ventricular mass, systolic and diastolic dysfunction and epicardial adipose tissue thickness...
January 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28124603/epicardial-adipose-tissue-another-tassel-in-the-complex-fabric-of-atherosclerosis
#2
Nikolaos Alexopoulos, Paolo Raggi
Atherosclerosis affects the majority of adult individuals in industrialized nations and it is beginning to affect even traditionally spared populations. The classic view has been that the precipitating events are intraluminal. However, good evidence supports the possibility that at least part of the atherosclerosis burden may be the consequence of extra-luminal noxious stimuli. Additionally, the epidemic of obesity, insulin resistance and diabetes mellitus has generated a strong interest in the potential role of visceral adipose tissue as an extra-luminal promoter of atherosclerosis...
January 24, 2017: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28007022/impact-of-obesity-and-epicardial-fat-on-early-left-atrial-dysfunction-assessed-by-cardiac-mri-strain-analysis
#3
Morgane Evin, Kathryn M Broadhouse, Fraser M Callaghan, Rachel T McGrath, Sarah Glastras, Rebecca Kozor, Samantha L Hocking, Jérôme Lamy, Alban Redheuil, Nadjia Kachenoura, Greg R Fulcher, Gemma A Figtree, Stuart M Grieve
BACKGROUND: Diastolic dysfunction is a major cause of morbidity in obese individuals. We aimed to assess the ability of magnetic resonance imaging (MRI) derived left atrial (LA) strain to detect early diastolic dysfunction in individuals with obesity and type 2 diabetes, and to explore the association between cardiac adipose tissue and LA function. METHODS: Twenty patients with obesity and T2D (55 ± 8 years) and nineteen healthy controls (48 ± 13 years) were imaged using cine steady state free precession and 2-point Dixon cardiovascular magnetic resonance...
December 22, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27999858/frailty-syndrome-visceral-adipose-tissue-and-frailty-in-patients-with-symptomatic-severe-aortic-stenosis
#4
M Pinheiro, J Mancio, G Conceição, W Ferreira, M Carvalho, A Santos, L Vouga, V Gama Ribeiro, A Leite-Moreira, I Falcão-Pires, N Bettencourt
BACKGROUND/OBJECTIVES: In patients with severe aortic stenosis (AS), frailty is a clinically relevant measure of increased vulnerability that should be included in the preoperative risk assessment. Bioelectrical impedance analysis (BIA) derived phase angle (PA) reflects cell membrane integrity and function. Few studies are available on the relative contribution of adiposity distribution on frailty, and about the influences of frailty and visceral obesity in PA value. Therefore, we aimed to evaluate associations among frailty, visceral fat depots and PA in patients with symptomatic severe AS...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27720272/epicardial-adipose-tissue-volume-and-left-ventricular-myocardial-function-using-3-dimensional-speckle-tracking-echocardiography
#5
Arnold C T Ng, Shi Yi Goo, Nicole Roche, Rob J van der Geest, William Y S Wang
BACKGROUND: Although epicardial adipose tissue (EAT) volume is associated with increased incidence of coronary artery disease (CAD), its role in myocardial systolic dysfunction is unclear. The present study aimed to identify independent determinants of EAT volume in patients without obstructive CAD, and to evaluate the association between EAT volume (vs other measures of obesity) and myocardial systolic strain analysis. METHODS: We prospectively recruited 130 patients without obstructive CAD on contrast-enhanced cardiac computed tomography imaging and normal left ventricular ejection fraction on 3-dimensional (3D) echocardiography...
June 23, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27699898/adipose-tissue-regulates-insulin-sensitivity-role-of-adipogenesis-de-novo-lipogenesis-and-novel-lipids
#6
U Smith, B B Kahn
Obesity, the major cause of the current global epidemic of type 2 diabetes (T2D), induces insulin resistance in peripheral insulin target tissues. Several mechanisms have been identified related to cross-talk between adipose tissue, skeletal muscle and liver. These mechanisms involve both increased free fatty acid release and altered secretion of adipokines from adipose tissue. A major determinant of metabolic health is the ability of subcutaneous adipose tissue (SAT) to store excess fat rather than allowing it to accumulate in ectopic depots including liver (i...
November 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27617176/ace2-ang-1-7-axis-a-critical-regulator-of-epicardial-adipose-tissue-inflammation-and-cardiac-dysfunction-in-obesity
#7
Vaibhav B Patel, Ratnadeep Basu, Gavin Y Oudit
Obesity is characterized by an excessive fat accumulation in adipose tissues leading to weight gain and is increasing in prevalence and is strongly associated with metabolic and cardiovascular disorders. The renin-angiotensin system (RAS) has emerged as a key pathogenic mechanism for these disorders; activated RAS and angiotensin (Ang) II production results in worsening of cardiovascular diseases and angiotensin converting enzyme 2 (ACE2) negatively regulates RAS by metabolizing Ang II into Ang 1-7. ACE2 is expressed in the adipocytes and its expression is upregulated in response to high fat diet induced obesity in mice...
July 2016: Adipocyte
https://www.readbyqxmd.com/read/27597954/role-of-mirnas-in-epicardial-adipose-tissue-in-cad-patients-with-t2dm
#8
Yang Liu, Wenbo Fu, Mu Lu, Shitao Huai, Yaqin Song, Yutao Wei
Background. Epicardial adipose tissue (EAT) is identified as an atypical fat depot surrounding the heart with a putative role in the involvement of metabolic disorders, including obesity, type-2 diabetes mellitus, and atherosclerosis. We profiled miRNAs in EAT of metabolic patients with coronary artery disease (CAD) and type-2 diabetes mellitus (T2DM) versus metabolically healthy patients by microarray. Compared to metabolically healthy patients, we identified forty-two miRNAs that are differentially expressed in patients with CAD and T2DM from Xinjiang, China...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27522371/relationship-between-soluble-receptor-for-advanced-glycation-end-products-srage-body-composition-and-fat-distribution-in-healthy-women
#9
Elena Dozio, Silvia Briganti, Alessandra Delnevo, Elena Vianello, Federica Ermetici, Francesco Secchi, Francesco Sardanelli, Lelio Morricone, Alexis E Malavazos, Massimiliano M Corsi Romanelli
PURPOSE: Soluble receptor for advanced glycation end products (sRAGE) is a decoy receptor which sequesters RAGE ligands and acts as a cytoprotective agent. To date, it is unclear whether the lower sRAGE levels observed in obesity are a marker of increased overall adiposity or reflect increases in particular fat depots. Therefore, we evaluated in healthy women the relationship among sRAGE and indicators of adiposity, including abdominal visceral (VAT) and epicardial visceral (EAT) adipose tissues, to explore the potential role of sRAGE as an earlier biomarker of cardiometabolic risk...
August 13, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27456108/abnormal-peri-organ-or-intra-organ-fat-apifat-deposition-an-underestimated-predictor-of-vascular-risk
#10
Niki Katsiki, Vasilios G Athyros, Dimitri P Mikhailidis
Adipose tissue, a major endocrine organ, consists of brown and white adipocytes. Brown fatmay play a beneficialrole in cardiometabolic disordersBrown adipose tissue can also improve glucose and lipid metabolism. In contrast, the expansion of white adipose tissue has been related to obesity, type 2 diabetes mellitus and cardiovascular disease (CVD). Both the quantity and the quality of the white adipose tissue as well as its distribution may affect CVD risk. In this context, the link between adiposity and CVD risk is greater for visceral than subcutaneous fat...
July 22, 2016: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/27450783/increased-expression-of-the-adipocytokine-omentin-in-the-epicardial-adipose-tissue-of-coronary-artery-disease-patients
#11
Ken Harada, Rei Shibata, Noriyuki Ouchi, Yoshiyuki Tokuda, Hiroshi Funakubo, Mayu Suzuki, Takashi Kataoka, Tomoyuki Nagao, Satoshi Okumura, Norihiro Shinoda, Bunichi Kato, Shinichi Sakai, Masataka Kato, Nobuyuki Marui, Hideki Ishii, Tetsuya Amano, Tatsuaki Matsubara, Toyoaki Murohara
BACKGROUND AND AIMS: Omentin, an adipocytokine secreted by visceral adipose tissue, protects against obesity-linked cardiovascular complications. However, little is known about its role in epicardial adipose tissue (EAT) and coronary artery disease (CAD). We investigated the expression of omentin in EAT from CAD subjects. METHODS: EAT, subcutaneous adipose tissue (SCAT), and plasma samples were collected from CAD (n = 15; 23.3 ± 3.1 kg/m(2)) and non-CAD patients (n = 10; 20...
August 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27352781/association-between-omentin-1-expression-in-human-epicardial-adipose-tissue-and-coronary-atherosclerosis
#12
Yu Du, Qingwei Ji, Lun Cai, Fangjiong Huang, Yongqiang Lai, Yue Liu, Jianbo Yu, Bo Han, Enjun Zhu, Jinwei Zhang, Yujie Zhou, Zhijian Wang, Yingxin Zhao
BACKGROUND: Omentin-1, a novel adipocytokine mainly expressed in visceral adipose tissue, has been found to inhibit the inflammatory response and improve insulin resistance as well as other obesity-related disorders. This study investigated the association between omentin-1 expression in human epicardial adipose tissue (EAT) and coronary atherosclerosis. METHODS: Serum samples, and paired biopsies from EAT and subcutaneous adipose tissue (SAT), were obtained from patients with and without coronary artery disease (CAD, n = 28 and NCAD, n = 12, respectively) during elective cardiac surgery...
June 28, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27294836/the-ratio-of-epicardial-to-body-fat-improves-the-prediction-of-coronary-artery-disease-beyond-calcium-and-framingham-risk-scores
#13
Bai-Chin Lee, Wen-Jeng Lee, Shyh-Chyi Lo, Hsiu-Ching Hsu, Kuo-Liong Chien, Yeun-Chung Chang, Ming-Fong Chen
The association between epicardial fat and coronary artery disease (CAD) might be affected by general adiposity. We aimed to determine whether the percentage of epicardial adipose tissue (%EAT), defined as the mass ratio of epicardial fat to body fat, could improve prediction of asymptomatic CAD. We consecutively enrolled 846 adults who underwent coronary computed tomography angiography as part of a health check-up and assessed their coronary stenosis severity and epicardial fat mass. Body fat mass was measured by bioelectrical impedance analysis...
June 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27165194/cardiac-remodeling-and-dysfunction-in-childhood-obesity-a-cardiovascular-magnetic-resonance-study
#14
Linyuan Jing, Cassi M Binkley, Jonathan D Suever, Nivedita Umasankar, Christopher M Haggerty, Jennifer Rich, Gregory J Wehner, Sean M Hamlet, David K Powell, Aurelia Radulescu, H Lester Kirchner, Frederick H Epstein, Brandon K Fornwalt
BACKGROUND: Obesity affects nearly one in five children and is associated with increased risk of premature death. Obesity-related heart disease contributes to premature death. We aimed to use cardiovascular magnetic resonance (CMR) to comprehensively characterize the changes in cardiac geometry and function in obese children. METHODS AND RESULTS: Forty-one obese/overweight (age 12 ± 3 years, 56 % female) and 29 healthy weight children (age 14 ± 3 years, 41 % female) underwent CMR, including both standard cine imaging and displacement encoded imaging, for a complete assessment of left ventricular (LV) structure and function...
May 11, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27152170/physiological-determinants-and-impacts-of-the-adipocyte-phenotype
#15
A Tchernof, D Richard
The properties of adipose tissues accumulating in various compartments and ectopic sites around the body represent critical determinants of the relationship between obesity and metabolic disease. The increasingly recognized plasticity of the adipose cell phenotype led to many articles on the cellular characteristics and origins on brown, white and also of 'beige' or 'brite' adipocytes in recent years. This overview is a summary of manuscripts that were prepared by speakers at the 16th International Symposium of the Laval University Research Chair in Obesity...
August 2015: International Journal of Obesity Supplements
https://www.readbyqxmd.com/read/27139713/adipokine-imbalance-in-the-pericardial-cavity-of-cardiac-and-vascular-disease-patients
#16
Atlanta G I M Elie, Pia S Jensen, Katrine D Nissen, Ilvy M E Geraets, Aimin Xu, Erfei Song, Maria L Hansen, Akhmadjon Irmukhamedov, Lars M Rasmussen, Yu Wang, Jo G R De Mey
AIM: Obesity and especially hypertrophy of epicardial adipose tissue accelerate coronary atherogenesis. We aimed at comparing levels of inflammatory and atherogenic hormones from adipose tissue in the pericardial fluid and circulation of cardiovascular disease patients. METHODS AND RESULTS: Venous plasma (P) and pericardial fluid (PF) were obtained from elective cardiothoracic surgery patients (n = 37). Concentrations of leptin, adipocyte fatty acid-binding protein (A-FABP) and adiponectin (APN) were determined by enzyme-linked immunosorbent assays (ELISA)...
2016: PloS One
https://www.readbyqxmd.com/read/27106272/exenatide-decreases-liver-fat-content-and-epicardial-adipose-tissue-in-patients-with-obesity-and-type-2-diabetes-a-prospective-randomized-clinical-trial-using-magnetic-resonance-imaging-and-spectroscopy
#17
A Dutour, I Abdesselam, P Ancel, F Kober, G Mrad, P Darmon, O Ronsin, V Pradel, N Lesavre, J C Martin, A Jacquier, Y Lefur, M Bernard, B Gaborit
AIM: To conduct a prospective randomized trial to investigate the effect of glucagon-like peptide-1 (GLP-1) analogues on ectopic fat stores. METHODS: A total of 44 obese subjects with type 2 diabetes uncontrolled on oral antidiabetic drugs were randomly assigned to receive exenatide or reference treatment according to French guidelines. Epicardial adipose tissue (EAT), myocardial triglyceride content (MTGC), hepatic triglyceride content (HTGC) and pancreatic triglyceride content (PTGC) were assessed 45 min after a standardized meal with 3T magnetic resonance imaging and proton magnetic resonance spectroscopy before and after 26 weeks of treatment...
September 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27081428/epicardial-adipose-tissue-thickness-and-its-association-with-the-presence-and-severity-of-coronary-artery-disease-in-clinical-setting-a-cross-sectional-observational-study
#18
Santosh Kumar Sinha, Ramesh Thakur, Mukesh Jitendra Jha, Amit Goel, Varun Kumar, Ashutosh Kumar, Vikas Mishra, Chandra Mohan Varma, Vinay Krishna, Avinash Kumar Singh, Mohit Sachan
BACKGROUND: Obesity is an important risk factor for atherosclerotic cardiovascular disease (ASCVD). Estimation of visceral adipose tissue is important and several methods are available as its surrogate. Although correlation of epicardial adipose tissue (EAT) with visceral adipose tissue as estimated by magnetic resonance imaging (MRI) and/or CT is excellent, it is costlier and cumbersome. EAT can be accurately measured by two-dimensional (2D) echocardiography. It tends to be higher in patients with acute coronary syndrome than in subjects without coronary artery disease (CAD) and in those with stable angina...
May 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/26995737/perivascular-adipose-tissue-an-unique-fat-compartment-relevant-for-the-cardiometabolic-syndrome
#19
REVIEW
D I Siegel-Axel, H U Häring
Type 2 diabetes and its major risk factor, obesity, are an increasing worldwide health problem. The exact mechanisms that link obesity with insulin resistance, type 2 diabetes, hypertension, cardiovascular complications and renal diseases, are still not clarified sufficiently. Adipose tissue in general is an active endocrine and paracrine organ that may influence the development of these disorders. Excessive body fat in general obesity may also cause quantitative and functional alterations of specific adipose tissue compartments...
March 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/26935271/epicardial-fat-and-atrial-fibrillation-current-evidence-potential-mechanisms-clinical-implications-and-future-directions
#20
Christopher X Wong, Anand N Ganesan, Joseph B Selvanayagam
Obesity is increasingly recognized as a major modifiable determinant of atrial fibrillation (AF). Although body mass index and other clinical measures are useful indications of general adiposity, much recent interest has focused on epicardial fat, a distinct adipose tissue depot that can be readily assessed using non-invasive imaging techniques. A growing body of data from epidemiological and clinical studies has demonstrated that epicardial fat is consistently associated with the presence, severity, and recurrence of AF across a range of clinical settings...
March 1, 2016: European Heart Journal
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