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Epicardial adipose tissue

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https://www.readbyqxmd.com/read/28453382/flow-cytometric-single-cell-analysis-reveals-heterogeneity-between-adipose-depots
#1
Badwi B Boumelhem, Stephen J Assinder, Kim S Bell-Anderson, Stuart T Fraser
Understanding adipose tissue heterogeneity is hindered by the paucity of methods to analyze mature adipocytes at the single cell level. Here, we report a system for analyzing live adipocytes from different adipose depots in the adult mouse. Single cell suspensions of buoyant adipocytes were separated from the stromal vascular fraction and analyzed by flow cytometry. Compared to other lipophilic dyes, Nile Red uptake effectively distinguished adipocyte populations. Nile Red fluorescence increased with adipocyte size and granularity and could be combined with MitoTracker® Deep Red or fluorescent antibody labeling to further dissect adipose populations...
April 14, 2017: Adipocyte
https://www.readbyqxmd.com/read/28438306/relation-of-quantity-of-subepicardial-adipose-tissue-to-infarct-size-in-patients-with-st-elevation-myocardial-infarction
#2
Loïc Bière, Vianney Behaghel, Victor Mateus, Antonildes Assunção, Christoph Gräni, Kais Ouerghi, Sylvain Grall, Serge Willoteaux, Fabrice Prunier, Raymond Kwong, Alain Furber
According to the so-called obesity paradox, obesity might present a protective role in patients with myocardial infarction. We aimed to assess the influence of the epicardial adipose tissue (EAT) volume on cardiac healing and remodeling in patients with acute ST-elevation myocardial infarction. We prospectively included 193 consecutive patients presenting a first STEMI without known coronary artery disease. Cardiac magnetic resonance imaging was performed at baseline and after a 3-month follow-up. EAT volume was computed, and the population was divided into quartiles: the highest quartile of EAT defining the high EAT group (h-EAT)...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28429889/omentin-treatment-of-epicardial-fat-improves-its-anti-inflammatory-activity-and-paracrine-benefit-on-smooth-muscle-cells
#3
Ángel Fernández-Trasancos, Rosa María Agra, Jose María García-Acuña, Ángel Luis Fernández, José Ramón González-Juanatey, Sonia Eiras
OBJECTIVE: Epicardial adipose tissue (EAT) in coronary artery disease is insulin resistant and has a proinflammatory profile. This study examined the regulation of EAT by exogenous omentin and its consequence on vascular cells. METHODS: Stromal vascular cells (SC) of EAT and subcutaneous adipose tissue (SAT) from patients who underwent heart surgery were cultured and exposed to adipogenic factors with or without omentin. Proinflammatory cytokine regulation by omentin was analyzed in SC and mature adipocytes...
April 21, 2017: Obesity
https://www.readbyqxmd.com/read/28413578/epicardial-fat-in-the-maintenance-of-cardiovascular-health
#4
Yang Wu, Aijun Zhang, Dale J Hamilton, Tuo Deng
Epicardial fat is a unique adipose tissue located between the myocardium and the visceral layer of pericardium. This tissue is characterized by highly active fatty acid metabolism and highly expressed thermogenic genes. Epicardial fat and the underlying myocardium share the same microcirculation, suggesting a close and strong interaction between these two structures. Under physiological conditions, epicardial fat protects and supports the heart to exert its normal function. Many clinical studies have shown significant associations between increased amounts of epicardial fat and coronary artery disease (CAD)...
January 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/28387822/differences-in-the-structural-characteristics-and-distribution-of-epicardial-adipose-tissue-between-left-and-right-atrial-fibrillation
#5
Hideyuki Hasebe, Kentaro Yoshida, Masataka Iida, Naoki Hatano, Toshiro Muramatsu, Akihiko Nogami, Kazutaka Aonuma
Aims: Right atrial (RA) fibrillation (RAF) was previously characterized by initiation from RA ectopies, presence of a right-to-left dominant frequency gradient during atrial fibrillation (AF), and augmentation of the gradient by adenosine triphosphate infusion. We investigated structural characteristics of the bi-atria and epicardial adipose tissue (EAT) volume in patients with RAF. Methods and results: By using multidetector computed tomography, RA, left atrial (LA), right and LA appendage (RAA and LAA, respectively) volumes, pulmonary vein (PV) sizes, and EAT volumes were compared between the RAF group (n = 8) and LA fibrillation (LAF) group (n = 32)...
April 6, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28378031/removal-of-epicardial-adipose-tissue-after-myocardial-infarction-improves-cardiac-function
#6
H-X Chang, X-J Zhao, Q-L Zhu, Q Hou, Y Li
BACKGROUND: The aim of this study was to assess the role of lipolysis of epicardial adipose tissue (EAT) in cardiac function after myocardial infarction (MI). METHODS: We used a rat model of MI with or without EAT removal to study the effects of EAT lipolysis on cardiovascular function. Echocardiography and cardiac catheterization were used to determine cardiac function, and infarct size and histopathology specimens were analyzed in postmortem sections. Inflammatory responses were evaluated via flow cytometry and Elisa analyses...
April 4, 2017: Herz
https://www.readbyqxmd.com/read/28376896/regulation-of-visceral-and-epicardial-adipose-tissue-for-preventing-cardiovascular-injuries-associated-to-obesity-and-diabetes
#7
REVIEW
N González, Z Moreno-Villegas, A González-Bris, J Egido, Ó Lorenzo
Nowadays, obesity is seriously increasing in most of the populations all over the world, and is associated with the development and progression of high-mortality diseases such as type-2 diabetes mellitus (T2DM) and its subsequent cardiovascular pathologies. Recent data suggest that both body fat distribution and adipocyte phenotype, can be more determinant for fatal outcomes in obese patients than increased general adiposity. In particular, visceral adiposity is significantly linked to long term alterations on different cardiac structures, and in developed forms of myocardial diseases such as hypertensive and ischaemic heart diseases, and diabetic cardiomyopathy...
April 4, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28367087/expression-of-sterol-regulatory-element-binding-proteins-in-epicardial-adipose-tissue-in-patients-with-coronary-artery-disease-and-diabetes-mellitus-preliminary-study
#8
Luis M Pérez-Belmonte, Inmaculada Moreno-Santos, Fernando Cabrera-Bueno, Gemma Sánchez-Espín, Daniel Castellano, Miguel Such, María G Crespo-Leiro, Fernando Carrasco-Chinchilla, Luis Alonso-Pulpón, Miguel López-Garrido, Amalio Ruiz-Salas, Víctor M Becerra-Muñoz, Juan J Gómez-Doblas, Eduardo de Teresa-Galván, Manuel Jiménez-Navarro
Objectives: Sterol regulatory element-binding proteins (SREBP) genes are crucial in lipid biosynthesis and cardiovascular homeostasis. Their expression in epicardial adipose tissue (EAT) and their influence in the development of coronary artery disease (CAD) and type-2 diabetes mellitus remain to be determined. The aim of our study was to evaluate the expression of SREBP genes in EAT in patients with CAD according to diabetes status and its association with clinical and biochemical data. Methods: SREBP-1 and SREBP-2 mRNA expression levels were measured in EAT from 49 patients with CAD (26 with diabetes) and 23 controls without CAD or diabetes...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28346857/the-influence-of-epicardial-fat-and-nonalcoholic-fatty-liver-disease-on-heart-rate-recovery-in-metabolic-syndrome
#9
Kyoung Im Cho, Eun Ah Jo, Sang Hoon Cho, Bo Hyun Kim
BACKGROUND: Epicardial adipose tissues reflecting visceral fat accumulations of the heart are associated with metabolic syndrome (MetS) and can be a predictor of other cardiometabolic diseases. It can adversely influence autonomic nervous system (ANS) of heart. Heart rate recovery (HRR) is an easy method for measuring ANS dysfunction. The purpose of this study was to determine whether epicardial fat thickness (EFT) and nonalcoholic fatty liver disease (NAFLD) are related to HRR in patients with MetS...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28344422/impaired-left-ventricular-diastolic-functions-and-thickened-epicardial-adipose-tissue-in-rheumatoid-arthritis-patients-is-correlated-with-das-28-score
#10
Sertac Alpaydın, Zafer Buyukterzi, Halil Ekrem Akkurt, Halim Yılmaz
BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory disease that is known to be associated with high cardiovascular (CV) morbidity and mortality. In this study, we aimed to demonstrate whether RA disease activity reflected with disease activity score-28 (DAS-28) had an impact on left ventricular diastolic functions and epicardial adipose tissue (EAT) thickness in RA patients with no traditional CV risk factors. METHODS: In this retrospective study, 41 patients newly diagnosed with RA were included...
March 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/28338554/eligibility-for-minimally-invasive-coronary-artery-bypass-examination-of-epicardial-adipose-tissue-using-computed-tomography
#11
Kate E M Dillon, Marjorie Johnson, Ian L Chan, Bob Kiaii
OBJECTIVE: A variable that necessitates conversion to a conventional full-sternotomy coronary artery bypass procedure from a robotic-assisted endoscopic single-vessel small thoracotomy is the inability to visualize the left anterior descending coronary artery within the surrounding epicardial adipose tissue using the endoscopic camera. The purpose of this study was to determine whether anatomical properties of the epicardial adipose tissue examined using preoperative computed tomography (CT) images are able to predict and thus reduce the need for intraoperative conversion based on effective preoperative exclusion criteria...
March 23, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28296956/equifat-a-novel-scoring-system-for-the-semi-quantitative-evaluation-of-regional-adipose-tissues-in-equidae
#12
Philippa K Morrison, Patricia A Harris, Charlotte A Maltin, Dai Grove-White, Caroline McG Argo
Anatomically distinct adipose tissues represent variable risks to metabolic health in man and some other mammals. Quantitative-imaging of internal adipose depots is problematic in large animals and associations between regional adiposity and health are poorly understood. This study aimed to develop and test a semi-quantitative system (EQUIFAT) which could be applied to regional adipose tissues. Anatomically-defined, photographic images of adipose depots (omental, mesenteric, epicardial, rump) were collected from 38 animals immediately post-mortem...
2017: PloS One
https://www.readbyqxmd.com/read/28279438/relation-of-epicardial-adipose-tissue-radiodensity-to-coronary-artery-calcium-on-cardiac-computed-tomography-in-patients-at-high-risk-for-cardiovascular-disease
#13
Bas T Franssens, Hendrik M Nathoe, Frank L J Visseren, Yolanda van der Graaf, Tim Leiner
Adipose tissue radiodensity detected by computed tomography (CT) is hypothesized to be associated with differences in adipose tissue composition which may contribute to the development of coronary atherosclerosis independent of epicardial adipose tissue volume. The aim of the present study is to quantify the relation between epicardial adipose tissue radiodensity and presence, distribution, and density of coronary artery calcium (CAC) in patients at high risk for cardiovascular disease. A total of 140 patients of the Secondary Manifestations of ARTerial disease (SMART) study underwent cardiac-CT angiography...
May 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28268083/epicardial-adipose-tissue-microbial-colonization-and-inflammasome-activation-in-acute-coronary-syndrome
#14
Daniela Pedicino, Anna Severino, Sara Ucci, Francesca Bugli, Davide Flego, Ada F Giglio, Francesco Trotta, Aureliano Ruggio, Claudia Lucci, Antonio Iaconelli, Francesco Paroni Sterbini, Luigi M Biasucci, Maurizio Sanguinetti, Franco Glieca, Nicola Luciani, Massimo Massetti, Filippo Crea, Giovanna Liuzzo
BACKGROUND: Epicardial adipose tissue (EAT) has a close functional and anatomic relationship with epicardial coronary arteries. Accumulating evidence suggests that host microbiome alterations may play a role in several inflammatory/immune disorders, triggering a robust proinflammatory response also involving interleukin-1β (IL-1β) and the NALP3 inflammasome. In the current study, we explore the hypothesis that in patients with non-ST elevation acute coronary syndrome (ACS), EAT contains potentially pro-atherosclerotic bacteria that might elicit inflammasome activation...
February 16, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28261292/epicardial-fat-thickness-and-oxidative-stress-parameters-in-patients-with-subclinical-hypothyroidism
#15
Ali Aydogdu, Emel Yigit Karakas, Emre Erkus, İbrahim Halil Altıparmak, Emin Savık, Turgay Ulas, Tevfik Sabuncu
INTRODUCTION: Thyroid disorders are known to be a risk factor for cardiovascular diseases. Epicardial fat thickness (EFT) and oxidative stress are also believed to be major risk factors for cardiovascular events. The aim of this study was to evaluate the possible relationship between oxidative stress parameters and EFT in patients with subclinical hypothyroidism (SCH). MATERIAL AND METHODS: A total of 60 individuals (30 patients with SCH and 30 healthy controls) were recruited for the study...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28256566/aberrant-epicardial-adipose-tissue-extracellular-matrix-remodeling-in-patients-with-severe-ischemic-cardiomyopathy-insight-from-comparative-quantitative-proteomics
#16
Ding-Sheng Jiang, Hao-Long Zeng, Rui Li, Bo Huo, Yun-Shu Su, Jing Fang, Qing Yang, Li-Gang Liu, Min Hu, Cai Cheng, Xue-Hai Zhu, Xin Yi, Xiang Wei
There is ample evidence indicating that epicardial adipose tissue (EAT) volume and thickness is positively associated with coronary artery disease (CAD). However, the exact pathological changes in the human EAT after myocardial ischemia remains largely unclear. In the current study, we applied a comparative quantitative proteomics to elucidate the altered biological processes in the EAT of ischemic cardiomyopathy (ICM) patients. A total of 1649 proteins were successfully quantified in our study, among which 165 proteins were significantly changed (ratio <0...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229226/pericoronary-adipose-tissue-ratio-is-a-stronger-associated-factor-of-plaque-vulnerability-than-epicardial-adipose-tissue-on-coronary-computed-tomography-angiography
#17
Ryo Okubo, Rine Nakanishi, Mikihito Toda, Daiga Saito, Ippei Watanabe, Takayuki Yabe, Hideo Amano, Tatsushi Hirai, Takanori Ikeda
This study was designed to clarify the influence of pericoronary adipose tissue (PAT) on plaque vulnerability using coronary computed tomography angiography (CCTA). A total of 103 consecutive patients who underwent CCTA and subsequent percutaneous coronary intervention (PCI) using intravascular ultrasound (IVUS) for coronary artery disease were enrolled. The PAT ratio was calculated as the sum of the perpendicular thickness of the visceral layer between the coronary artery and the pericardium, or the coronary artery and the surface of the heart at the PCI site, divided by the PAT thickness without a plaque in the same vessel...
February 22, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28223054/epicardial-adipose-tissue-removal-potentiates-outward-remodeling-and-arrests-coronary-atherogenesis
#18
Mikaela L McKenney-Drake, Stacey D Rodenbeck, Rebecca S Bruning, Ayeeshik Kole, Kyle W Yancey, Mouhamad Alloosh, Harold S Sacks, Michael Sturek
BACKGROUND: Pericoronary epicardial adipose tissue (cEAT) serves as a metabolic and paracrine organ that contributes to inflammation and is associated with macrovascular coronary artery disease (CAD) development. Although there is a strong correlation in humans between cEAT volume and CAD severity, there remains a paucity of experimental data demonstrating a causal link of cEAT to CAD. The current study tested the hypothesis that surgical resection of cEAT attenuates inflammation and CAD progression...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28191635/the-role-of-epicardial-adipose-tissue-in-cardiac-biology-classic-concepts-and-emerging-roles
#19
Alexios S Antonopoulos, Charalambos Antoniades
Classic concepts about the role of epicardial adipose tissue (EpAT) in heart physiology include its role in cardiac metabolism, mechanical protection of coronaries, innervation and possibly cryoprotection of the heart too. Nevertheless, recent evidence has revealed that epicardial adipose tissue regulates multiple aspects of cardiac biology including myocardial redox state, intracellular Ca(2+) cycling, the electrophysiological and contractile properties of cardiomyocytes, cardiac fibrosis as well as coronary atherosclerosis progression...
February 12, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28183844/association-between-posterior-left-atrial-adipose-tissue-mass-and-atrial-fibrillation
#20
Alexander R van Rosendael, Aukelien C Dimitriu-Leen, Philippe J van Rosendael, Melissa Leung, Jeff M Smit, Antti Saraste, Juhani Knuuti, Rob J van der Geest, Britt W H van der Arend, Erik W van Zwet, Arthur J Scholte, Victoria Delgado, Jeroen J Bax
BACKGROUND: Epicardial adipose tissue located close to the atrial wall can change the electric conduction of the left atrium, potentially leading to atrial fibrillation (AF). The aim of this study was to assess whether an increased atrial adipose tissue mass posterior to the left atrium is related to AF independent of demographical and cardiovascular risk factors. METHODS AND RESULTS: Two hundred patients with AF and 200 patients without AF who underwent computed tomographic angiography were included...
February 2017: Circulation. Arrhythmia and Electrophysiology
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