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Pabon MA, Manocha K, Cheung JW, Lo JC. Linking Arrhythmias and Adipocytes: Insights, Mechanisms, and Future Directions. Front Physiol 2018; 9:1752. [PMID: 30568603 PMCID: PMC6290087 DOI: 10.3389/fphys.2018.01752] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/20/2018] [Indexed: 01/14/2023] Open
Abstract
Obesity and atrial fibrillation have risen to epidemic levels worldwide and may continue to grow over the next decades. Emerging evidence suggests that obesity promotes atrial and ventricular arrhythmias. This has led to trials employing various strategies with the ultimate goal of decreasing the atrial arrhythmic burden in obese patients. The effectiveness of these interventions remains to be determined. Obesity is defined by the expansion of adipose mass, making adipocytes a prime candidate to mediate the pro-arrhythmogenic effects of obesity. The molecular mechanisms linking obesity and adipocytes to increased arrhythmogenicity in both the atria and ventricles remain poorly understood. In this focused review, we highlight areas of potential molecular interplay between adipocytes and cardiomyocytes. The effects of adipocytes may be direct, local or remote. Direct effect refers to adipocyte or fatty infiltration of the atrial and ventricular myocardium itself, possibly causing increased dispersion of normal myocardial electrical signals and fibrotic substrate of adipocytes that promote reentry or adipocytes serving as a direct source of aberrant signals. Local effects may originate from nearby adipose depots, specifically epicardial adipose tissue (EAT) and pericardial adipose tissue, which may play a role in the secretion of adipokines and chemokines that can incite inflammation given the direct contact and disrupt the conduction system. Adipocytes can also have a remote effect on the myocardium arising from their systemic secretion of adipokines, cytokines and metabolites. These factors may lead to mitochondrial dysfunction, oxidative stress, autophagy, mitophagy, autonomic dysfunction, and cardiomyocyte death to ultimately produce a pro-arrhythmogenic state. By better understanding the molecular mechanisms connecting dysfunctional adipocytes and arrhythmias, novel therapies may be developed to sever the link between obesity and arrhythmias.
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Affiliation(s)
- Maria A Pabon
- Joan and Sanford I. Weill, Department of Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States
| | - Kevin Manocha
- Division of Cardiology, Department of Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States
| | - Jim W Cheung
- Division of Cardiology, Department of Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States
| | - James C Lo
- Division of Cardiology, Department of Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, United States.,Metabolic Health Center, Weill Cornell Medicine, New York, NY, United States.,Department of Pharmacology, Weill Cornell Medicine, New York, NY, United States
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52
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Goudis CA, Vasileiadis IE, Liu T. Epicardial adipose tissue and atrial fibrillation: pathophysiological mechanisms, clinical implications, and potential therapies. Curr Med Res Opin 2018; 34:1933-1943. [PMID: 29625530 DOI: 10.1080/03007995.2018.1462786] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Atrial fibrillation (AF) is the most common arrhythmia in clinical practice and is associated with increased cardiovascular morbidity and mortality. Epicardial adipose tissue (EAT) serves as a biologically active organ with important endocrine and inflammatory function. Review An accumulating body of evidence suggests that EAT is associated with the initiation, perpetuation, and recurrence of AF, but the precise role of EAT in AF pathogenesis is not completely elucidated. Pathophysiological mechanisms involve adipocyte infiltration, profibrotic and pro-inflammatory paracrine effects, oxidative stress, neural mechanisms, and genetic factors. CONCLUSIONS Notably, EAT accumulation seems to be associated with stroke and adverse cardiovascular outcomes in AF. Weight loss, specific medications and ablation of ganglionated plexi (GP) seem to be potential therapies in this setting.
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Affiliation(s)
- Christos A Goudis
- a Department of Cardiology , Serres General Hospital , Serres , Greece
| | | | - Tong Liu
- c Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease, Department of Cardiology , Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University , Tianjin , PR China
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53
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Wang L, Chao Z, Wang Y. Identification of Two Novel Single Nucleotide Polymorphisms in the Promoter Region of the Pig AMP Deaminase 1 Gene Associated with Carcass Traits. DNA Cell Biol 2018; 37:896-902. [PMID: 30234378 DOI: 10.1089/dna.2018.4293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The AMP deaminase 1 (AMPD1) gene plays an important role in purine nucleotide interconversion and energy metabolism. In this study, two novel single nucleotide polymorphisms (SNPs) (g.-626 G > A and g.-566 A>G) were detected in the proximal promoter region of the AMPD1 gene. The Chinese indigenous pig breeds (Meishan and Tongcheng) had higher frequencies of the G and A alleles than Western meat-type breeds (Landrace and Large White) at the g.-626 G > A and g.-566 A>G loci. The transcriptional activity of the AMPD1 promoter carrying the haplotype H1 (A-626G-566) was significantly (p < 0.05) higher than that of the haplotype H2 (G-626A-566). In addition, pigs with the haplotype combination H1H1 had significantly (p < 0.05) higher mRNA expression levels of the AMPD1 gene than those with haplotype combinations H1H2 and H2H2 in two different skeletal muscles. Association analyses revealed that the pigs with the haplotype combination H1H1 had significantly higher lean meat percentage values but lower average backfat thickness (ABT, cm), buttock fat thickness (cm), and thorax-waist fat thickness (cm) values than the pigs with the haplotype combinations H1H2 and H2H2. These findings demonstrate that the two novel SNPs in the promoter region of the AMPD1 gene have significant associations with pig fat deposition traits.
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Affiliation(s)
- Linjie Wang
- 1 Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University , Chengdu, P.R. China
| | - Zhe Chao
- 2 Institute of Animal Science and Veterinary Medicine , Hainan Academy of Agricultural Sciences, Haikou, P.R. China
| | - Yan Wang
- 1 Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University , Chengdu, P.R. China
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54
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Qureshi R, Kindo M, Boulberdaa M, von Hunolstein JJ, Steenman M, Nebigil CG. A Prokineticin-Driven Epigenetic Switch Regulates Human Epicardial Cell Stemness and Fate. Stem Cells 2018; 36:1589-1602. [DOI: 10.1002/stem.2866] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 06/17/2018] [Accepted: 05/19/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Rehana Qureshi
- CNRS, Biotechnology and Cell Signaling Laboratory (UMR 7242); University of Strasbourg; Illkirch France
| | - Michel Kindo
- Hospital of University of Strasbourg, Cardiology and Cardiovascular Surgery Department; Hospital of University of Strasbourg; Strasbourg France
| | - Mounia Boulberdaa
- CNRS, Biotechnology and Cell Signaling Laboratory (UMR 7242); University of Strasbourg; Illkirch France
| | - Jean-Jacques von Hunolstein
- Hospital of University of Strasbourg, Cardiology and Cardiovascular Surgery Department; Hospital of University of Strasbourg; Strasbourg France
| | - Marja Steenman
- Institute of Thorax, INSERM, CNRS; University of Nantes; Nantes France
| | - Canan G. Nebigil
- CNRS, Biotechnology and Cell Signaling Laboratory (UMR 7242); University of Strasbourg; Illkirch France
- Laboratory of Biomolecules (UMR7203), CNRS; Sorbonne University; Paris France
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55
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Bornachea O, Vea A, Llorente-Cortes V. Interplay between epicardial adipose tissue, metabolic and cardiovascular diseases. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2018; 30:230-239. [PMID: 29903689 DOI: 10.1016/j.arteri.2018.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/24/2018] [Accepted: 03/19/2018] [Indexed: 01/26/2023]
Abstract
Cardiovascular disease is the primary cause of death in obese and diabetic patients. In these groups of patients, the alterations of epicardial adipose tissue (EAT) contribute to both vascular and myocardial dysfunction. Therefore, it is of clinical interest to determine the mechanisms by which EAT influences cardiovascular disease. Two key factors contribute to the tight intercommunication among EAT, coronary arteries and myocardium. One is the close anatomical proximity between these tissues. The other is the capacity of EAT to secrete cytokines and other molecules with paracrine and vasocrine effects on the cardiovascular system. Epidemiological studies have demonstrated that EAT thickness is associated with not only metabolic syndrome but also atherosclerosis and heart failure. The evaluation of EAT using imaging modalities, although effective, presents several disadvantages including radiation exposure, limited availability and elevated costs. Therefore, there is a clinical interest in EAT as a source of new biomarkers of cardiovascular and endocrine alterations. In this review, we revise the mechanisms involved in the protective and pathological role of EAT and present the molecules released by EAT with greater potential to become biomarkers of cardiometabolic alterations.
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Affiliation(s)
- Olga Bornachea
- Institute of Biomedical Research IIB-Sant Pau, Barcelona, Spain; Institute of Biomedical Research of Barcelona (IibB)-CSIC, Barcelona, Spain
| | - Angela Vea
- Institute of Biomedical Research IIB-Sant Pau, Barcelona, Spain
| | - Vicenta Llorente-Cortes
- Institute of Biomedical Research IIB-Sant Pau, Barcelona, Spain; Institute of Biomedical Research of Barcelona (IibB)-CSIC, Barcelona, Spain; CIBERCV, Instituto de Salud Carlos III, Madrid, Spain.
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Akoumianakis I, Antoniades C. The interplay between adipose tissue and the cardiovascular system: is fat always bad? Cardiovasc Res 2018; 113:999-1008. [PMID: 28582523 DOI: 10.1093/cvr/cvx111] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 05/31/2017] [Indexed: 12/14/2022] Open
Abstract
Obesity is a risk factor for cardiovascular disease (CVD). However, clinical research has revealed a paradoxically protective role for obesity in patients with chronic diseases including CVD, suggesting that the biological 'quality' of adipose tissue (AT) may be more important than overall AT mass or body weight. Importantly, AT is recognised as a dynamic organ secreting a wide range of biologically active adipokines, microRNAs, gaseous messengers, and other metabolites that affect the cardiovascular system in both endocrine and paracrine ways. Despite being able to mediate normal cardiovascular function under physiological conditions, AT undergoes a phenotypic shift characterised by acquisition of pro-oxidant and pro-inflammatory properties in cases of CVD. Crucially, recent evidence suggests that AT depots such as perivascular AT and epicardial AT are able to modify their phenotype in response to local signals of vascular and myocardial origin, respectively. Utilisation of this unique property of certain AT depots to dynamically track cardiovascular biology may reveal novel diagnostic and prognostic tools against CVD. Better understanding of the mechanisms controlling the 'quality' of AT secretome, as well as the communication links between AT and the cardiovascular system, is required for the efficient management of CVD.
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Affiliation(s)
- Ioannis Akoumianakis
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Charalambos Antoniades
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
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57
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Packer M. Epicardial Adipose Tissue May Mediate Deleterious Effects of Obesity and Inflammation on the Myocardium. J Am Coll Cardiol 2018; 71:2360-2372. [PMID: 29773163 DOI: 10.1016/j.jacc.2018.03.509] [Citation(s) in RCA: 340] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 02/20/2018] [Accepted: 03/18/2018] [Indexed: 02/07/2023]
Abstract
Epicardial adipose tissue has unique properties that distinguish it from other depots of visceral fat. Rather than having distinct boundaries, the epicardium shares an unobstructed microcirculation with the underlying myocardium, and in healthy conditions, produces cytokines that nourish the heart. However, in chronic inflammatory disorders (especially those leading to heart failure with preserved ejection fraction), the epicardium becomes a site of deranged adipogenesis, leading to the secretion of proinflammatory adipokines that can cause atrial and ventricular fibrosis. Accordingly, in patients at risk of heart failure with preserved ejection fraction, drugs that promote the accumulation or inflammation of epicardial adipocytes may lead to heart failure, whereas treatments that ameliorate the proinflammatory characteristics of epicardial fat may reduce the risk of heart failure. These observations suggest that epicardial adipose tissue is a transducer of the adverse effects of systemic inflammation and metabolic disorders on the heart, and thus, represents an important target for therapeutic interventions.
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Affiliation(s)
- Milton Packer
- Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, Texas.
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58
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Interplay between cardiac transcription factors and non-coding RNAs in predisposing to atrial fibrillation. J Mol Med (Berl) 2018; 96:601-610. [DOI: 10.1007/s00109-018-1647-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/18/2018] [Accepted: 05/03/2018] [Indexed: 11/26/2022]
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59
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Affiliation(s)
- Jordi Heijman
- From the Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine, and Life Sciences, Maastricht University, The Netherlands (J.H.); Department of Medicine, Montreal Heart Institute and Université de Montréal, Canada (J.-B.G., S.N.); University Hospital of Saint-Étienne, University Jean Monnet, Saint-Étienne, France (J.-B.G.); Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen (D.D., S.N.); and
| | - Jean-Baptiste Guichard
- From the Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine, and Life Sciences, Maastricht University, The Netherlands (J.H.); Department of Medicine, Montreal Heart Institute and Université de Montréal, Canada (J.-B.G., S.N.); University Hospital of Saint-Étienne, University Jean Monnet, Saint-Étienne, France (J.-B.G.); Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen (D.D., S.N.); and
| | - Dobromir Dobrev
- From the Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine, and Life Sciences, Maastricht University, The Netherlands (J.H.); Department of Medicine, Montreal Heart Institute and Université de Montréal, Canada (J.-B.G., S.N.); University Hospital of Saint-Étienne, University Jean Monnet, Saint-Étienne, France (J.-B.G.); Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen (D.D., S.N.); and
| | - Stanley Nattel
- From the Department of Cardiology, Cardiovascular Research Institute Maastricht, Faculty of Health, Medicine, and Life Sciences, Maastricht University, The Netherlands (J.H.); Department of Medicine, Montreal Heart Institute and Université de Montréal, Canada (J.-B.G., S.N.); University Hospital of Saint-Étienne, University Jean Monnet, Saint-Étienne, France (J.-B.G.); Institute of Pharmacology, West German Heart and Vascular Center, Faculty of Medicine, University Duisburg-Essen (D.D., S.N.); and
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60
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Report on the Ion Channel Symposium : Organized by the German Cardiac Society Working Group on Cellular Electrophysiology (AG 18). Herzschrittmacherther Elektrophysiol 2018; 29:4-13. [PMID: 29313139 DOI: 10.1007/s00399-017-0549-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/04/2017] [Indexed: 10/18/2022]
Abstract
To support scientific exchange and activity in the field of cardiac cellular electrophysiology, the German Cardiac Society Working Group on Cellular Electrophysiology (AG 18) established a two-day symposium to be held every 2 years. The second Ion Channel Symposium entitled "Göttingen Channels 2017-Of Benches and Beds" took place in Göttingen from September 22nd to 23rd under the auspices of the German Cardiac Society. A group of national and international experts presented scientific advances in cardiac electrophysiology and rhythmology. The symposium's primary focus was the significance of cellular electrophysiology findings for the optimization of diagnostic and therapeutic strategies against cardiac arrhythmias. To this end, speakers, chairpersons and attendees discussed the contribution of specific molecular alterations to the initiation and perpetuation of atrial and ventricular arrhythmias. Furthermore, the meeting highlighted how discoveries in electrophysiological research may lead to novel therapeutic targets. The interdisciplinary assessment of mechanisms and therapeutic strategies of cardiac arrhythmias represented a key feature of the meeting. A unique combination of topics and speakers representing both basic science and clinical electrophysiology ensured the scientific success of the "Göttingen Channels 2017" symposium. The next Ion Channel Symposium is planned to be hosted by the incoming co-chair of the German Cardiac Society Working Group on Cellular Electrophysiology in fall 2019.
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Prokineticin receptor-1-dependent paracrine and autocrine pathways control cardiac tcf21 + fibroblast progenitor cell transformation into adipocytes and vascular cells. Sci Rep 2017; 7:12804. [PMID: 29038558 PMCID: PMC5643307 DOI: 10.1038/s41598-017-13198-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/19/2017] [Indexed: 01/10/2023] Open
Abstract
Cardiac fat tissue volume and vascular dysfunction are strongly associated, accounting for overall body mass. Despite its pathophysiological significance, the origin and autocrine/paracrine pathways that regulate cardiac fat tissue and vascular network formation are unclear. We hypothesize that adipocytes and vasculogenic cells in adult mice hearts may share a common cardiac cells that could transform into adipocytes or vascular lineages, depending on the paracrine and autocrine stimuli. In this study utilizing transgenic mice overexpressing prokineticin receptor (PKR1) in cardiomyocytes, and tcf21ERT-creTM-derived cardiac fibroblast progenitor (CFP)-specific PKR1 knockout mice (PKR1tcf−/−), as well as FACS-isolated CFPs, we showed that adipogenesis and vasculogenesis share a common CFPs originating from the tcf21+ epithelial lineage. We found that prokineticin-2 is a cardiomyocyte secretome that controls CFP transformation into adipocytes and vasculogenic cells in vivo and in vitro. Upon HFD exposure, PKR1tcf−/− mice displayed excessive fat deposition in the atrioventricular groove, perivascular area, and pericardium, which was accompanied by an impaired vascular network and cardiac dysfunction. This study contributes to the cardio-obesity field by demonstrating that PKR1 via autocrine/paracrine pathways controls CFP–vasculogenic- and CFP-adipocyte-transformation in adult heart. Our study may open up new possibilities for the treatment of metabolic cardiac diseases and atherosclerosis.
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62
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The thermogenic actions of natriuretic peptide in brown adipocytes: The direct measurement of the intracellular temperature using a fluorescent thermoprobe. Sci Rep 2017; 7:12978. [PMID: 29021616 PMCID: PMC5636787 DOI: 10.1038/s41598-017-13563-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 09/26/2017] [Indexed: 12/11/2022] Open
Abstract
In addition to the various effects of natriuretic peptides (NPs) on cardiovascular systems, increasing attention is being paid to the possibility that NPs induce adipose tissue browning and activate thermogenic program. We herein established a direct intracellular temperature measurement system using a fluorescent thermoprobe and investigated the thermogenic effects of A-type NP (ANP) on brown adipocytes. The thermoprobe was successfully introduced into rat brown adipocytes, and the temperature dependent change in fluorescence intensity ratio was measured using a fluorescence microscope. After one-hour incubation with ANP, the degree of the change in fluorescence intensity ratio was significantly higher in ANP-treated (P < 0.01) adipocytes compared to untreated controls. The ANP treatment increased uncoupling protein-1 (UCP1) mRNA levels, which is one of the markers of thermogenesis in adipocytes, while the intracellular ATP content was not changed, indicating mitochondrial uncoupled respiration. Intriguingly, these thermogenic actions of ANP were more prominent when brown adipocytes were incubated at 35 °C than at 37 °C. Moreover, the increase in the intracellular temperature and the expression of UCP1 induced by ANP were cancelled by p38MAPK inhibition. Taken together, this study directly demonstrated the thermogenic actions of ANP in brown adipocytes through the use of a novel method of intracellular temperature measurement.
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63
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Tsaban G, Wolak A, Avni-Hassid H, Gepner Y, Shelef I, Henkin Y, Schwarzfuchs D, Cohen N, Bril N, Rein M, Serfaty D, Kenigsbuch S, Tene L, Zelicha H, Yaskolka-Meir A, Komy O, Bilitzky A, Chassidim Y, Ceglarek U, Stumvoll M, Blüher M, Thiery J, Dicker D, Rudich A, Stampfer MJ, Shai I. Dynamics of intrapericardial and extrapericardial fat tissues during long-term, dietary-induced, moderate weight loss. Am J Clin Nutr 2017; 106:984-995. [PMID: 28814394 DOI: 10.3945/ajcn.117.157115] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 07/10/2017] [Indexed: 11/14/2022] Open
Abstract
Background: In view of evidence linking pericardial fat accumulation with increased cardiovascular disease risk, strategies to reduce its burden are needed. Data comparing the effects of specific long-term dietary interventions on pericardial fat tissue mobilization are sparse.Objective: We sought to evaluate intrapericardial-fat (IPF) and extrapericardial-fat (EPF) changes during weight-loss interventions by different dietary regimens.Design: During 18 mo of a randomized controlled trial, we compared a Mediterranean/low-carbohydrate (MED/LC) diet plus 28 g walnuts/d with a calorically equal low-fat (LF) diet among randomly assigned participants with moderate abdominal obesity. We performed whole-body MRI and volumetrically quantified IPF and EPF among 80 participants to follow the 18-mo changes.Results: The participants [mean age: 48.6 y; mean body mass index (BMI; in kg/m2); 31.7; 90% men] had baseline IPF and EPF (mean ± SD) volumes of 172.4 ± 53.3 mL and 194.9 ± 71.5 mL, respectively. The 18-mo moderate weight loss of 3.7 kg was similar in both groups, but the reduction in waist circumference was higher in the MED/LC group (-6.9 ± 6.6 cm) than in the LF diet group (-2.3 ± 6.5 cm; P = 0.01). After 18 mo, the IPF volume had reduced twice as much in the MED/LC group compared with the LF group [-37 ± 26.2 mL (-22% ± 15%) compared with -15.5 ± 26.2 mL (-8% ± 15%), respectively; P < 0.05, after adjustment for changes in weight or visceral adipose tissue]. The EPF volume had reduced similarly in both groups [-41.6 ± 30.2 mL (-23% ± 16%) in the MED/LC group compared with -37.9 ± 28.3 mL (-19% ± 14%) in the LF group; P > 0.1]. After controlling for weight loss, IPF and EPF volume reduction paralleled changes in lipid profile but not with improved glycemic profile variables: the IPF relative reduction was associated with a decrease in triglycerides (TGs) (β = 0.090; 95% CI: 0.026, 0.154; P = 0.007) and the ratio of TGs to high-density lipoprotein (HDL) cholesterol (β = 2.689; 95% CI: 0.373, 5.003; P = 0.024), and the EPF relative reduction was associated with an increase in HDL cholesterol (β = -0.452; 95% CI: -0.880, -0.023; P = 0.039) and a decrease in total cholesterol and HDL cholesterol (β = 3.766; 95% CI: 1.092, 6.440; P = 0.007).Conclusions: Moderate but persistent dietary-induced weight loss substantially decreased both IPF and EPF volumes. Reduction of pericardial adipose tissues is independently associated with an improved lipid profile. The Mediterranean diet, rich in unsaturated fats and restricted carbohydrates, is superior to an LF diet in terms of the IPF burden reduction. This trial was registered at clinicaltrials.gov as NCT01530724.
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Affiliation(s)
- Gal Tsaban
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Soroka University Medical Center, Beer-Sheva, Israel
| | - Arik Wolak
- Cardiac Imaging Unit, Department of Cardiology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Hila Avni-Hassid
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yftach Gepner
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ilan Shelef
- Soroka University Medical Center, Beer-Sheva, Israel
| | - Yaakov Henkin
- Soroka University Medical Center, Beer-Sheva, Israel
| | - Dan Schwarzfuchs
- Soroka University Medical Center, Beer-Sheva, Israel.,Nuclear Research Center Negev, Dimona, Israel
| | - Noa Cohen
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Nitzan Bril
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Michal Rein
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Dana Serfaty
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Shira Kenigsbuch
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Lilac Tene
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Hila Zelicha
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Anat Yaskolka-Meir
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Oded Komy
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Avital Bilitzky
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | | | - Uta Ceglarek
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | | | - Matthias Blüher
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Joachim Thiery
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Dror Dicker
- Internal Medicine D, Rabin Medical Center, Campus Golda, Petach Tikva, Israel; and
| | - Assaf Rudich
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Meir J Stampfer
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard School of Public Health, Boston, MA
| | - Iris Shai
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel;
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Bernasochi GB, Boon WC, Curl CL, Varma U, Pepe S, Tare M, Parry LJ, Dimitriadis E, Harrap SB, Nalliah CJ, Kalman JM, Delbridge LM, Bell JR. Pericardial adipose and aromatase: A new translational target for aging, obesity and arrhythmogenesis? J Mol Cell Cardiol 2017; 111:96-101. [DOI: 10.1016/j.yjmcc.2017.08.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/01/2017] [Accepted: 08/14/2017] [Indexed: 10/19/2022]
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65
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Affiliation(s)
- Paulus Kirchhof
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK.,Sandwell and West Birmingham Hospitals NHS trust and University Hospitals Birmingham NHS Foundation NHS trust, Birmingham, UK
| | - Prashanthan Sanders
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide, and Royal Adelaide Hospital, Adelaide, Australia
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