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Cardiovascular Research

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https://www.readbyqxmd.com/read/28666348/debulking-fat-in-the-heart-a-fascinating-role-for-autophagy
#1
Tim Vervliet, Geert Bultynck
No abstract text is available yet for this article.
June 28, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28651332/surfactant-protein-d-is-not-so-friendly-outside-the-lung-aggravation-of-cardiovascular-disease
#2
Grith L Sorensen
No abstract text is available yet for this article.
June 23, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28641382/metabolic-arithmetic-do-two-wrongs-make-a-right
#3
Craig A Lygate
No abstract text is available yet for this article.
June 21, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28637258/-dysfunctional-adipose-tissue-in-cardiovascular-disease-a-reprogrammable-target-or-an-innocent-bystander
#4
Charalambos Antoniades
Metabolically abnormal obesity as well as type 2 diabetes, are related with fundamental changes in the interactions between adipose tissue and the cardiovascular system. This editorial article introduces a spotlight issue addressing the complex relationships between adipose tissue and the cardiovascular system, in health and disease.
June 16, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28582523/the-interplay-between-adipose-tissue-and-the-cardiovascular-system-is-fat-always-bad
#5
Ioannis Akoumianakis, Charalambos Antoniades
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 recognized 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...
June 5, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28582477/gingival-fibroblasts-protect-against-experimental-abdominal-aortic-aneurysm-development-and-rupture-through-timp-1-production
#6
Andreas Giraud, Lynda Zeboudj, Marie Vandestienne, Jérémie Joffre, Bruno Esposito, Stéphane Potteaux, José Vilar, Daniela Cabuzu, Johannes Kluwe, Sylvie Seguier, Alain Tedgui, Ziad Mallat, Antoine Lafont, Hafid Ait-Oufella
Aims.: Abdominal aortic aneurysm (AAA), frequently diagnosed in old patients, is characterized by chronic inflammation, vascular cell apoptosis and metalloproteinase-mediated extracellular matrix destruction. Despite improvement in the understanding of the pathophysiology of aortic aneurysm, no pharmacological treatment is yet available to limit dilatation and/or rupture. We previously reported that human gingival fibroblasts (GFs) can reduce carotid artery dilatation in a rabbit model of elastase-induced aneurysm...
June 5, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28575410/enhanced-endothelin-1-rho-kinase-signaling-and-coronary-microvascular-dysfunction-in-hypertensive-myocardial-hypertrophy
#7
Shu-Huai Tsai, Guangrong Lu, Xin Xu, Yi Ren, Travis W Hein, Lih Kuo
Aims: Hypertensive cardiac hypertrophy is associated with reduced coronary flow reserve, but its impact on coronary flow regulation and vasomotor function remains incompletely understood and requires further investigation. Methods and results: Left ventricular hypertrophy was induced in mice by transverse aortic coarctation (TAC) for 4 weeks. The left coronary artery blood velocity (LCABV) and myocardium lactate level were measured following the metabolic activation by isoproterenol...
May 29, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28549111/diabetic-db-db-mice-do-not-develop-heart-failure-upon-pressure-overload-a-longitudinal-in-vivo-pet-mri-and-mrs-study-on-cardiac-metabolic-structural-and-functional-adaptations
#8
Desiree Abdurrachim, Miranda Nabben, Verena Hoerr, Michael T Kuhlmann, Philipp Bovenkamp, Jolita Ciapaite, Ilvy M E Geraets, Will Coumans, Joost J F P Luiken, Jan F C Glatz, Michael Schäfers, Klaas Nicolay, Cornelius Faber, Sven Hermann, Jeanine J Prompers
Aim: Heart failure is associated with altered myocardial substrate metabolism and impaired cardiac energetics. Comorbidities like diabetes may influence the metabolic adaptations during heart failure development. We quantified to what extent changes in substrate preference, lipid accumulation, and energy status predict the longitudinal development of hypertrophy and failure in the non-diabetic and the diabetic heart. Methods and results: Transverse aortic constriction (TAC) was performed in non-diabetic ( db /+) and diabetic ( db/db ) mice to induce pressure overload...
May 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28549096/the-molecular-mechanisms-of-obesity-paradox
#9
Alexios S Antonopoulos, Dimitris Tousoulis
Clinical observations suggest a complex relationship between human obesity and cardiovascular disease. Whilst abdominal (visceral) adiposity leads to deleterious metabolic disturbances, subcutaneous fat accumulation has a benign effect on cardiometabolic risk. Notably, an accumulating body of evidence paradoxically links increased body mass index with a better prognosis in patients with established cardiovascular disease, a finding that has been termed the 'obesity paradox'. While this is now acknowledged to be an epidemiological finding, a metabolically healthy obese group associated with low cardiovascular risk has also been identified...
May 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28541382/myocardial-fibrosis-in-response-to-pressure-overload-elucidating-the-contribution-of-tissue-transglutaminase
#10
Fernando Rodríguez-Pascual, Javier Díez
No abstract text is available yet for this article.
May 25, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28541381/distinguish-mutation-specific-pathogenic-effects-from-secondary-disease-remodeling-an-essential-but-often-overlooked-concept
#11
Ilse A E Bollen, Jolanda van der Velden
No abstract text is available yet for this article.
May 25, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28505257/micrornas-in-dysfunctional-adipose-tissue-cardiovascular-implications
#12
Basak Icli, Mark W Feinberg
In this review, we focus on the emerging role of microRNAs, non-coding RNAs that regulate gene expression and signaling pathways, in dysfunctional adipose tissue. We highlight current paradigms of microRNAs involved in adipose differentiation and function in depots such as white, brown, and beige adipose tissues and potential implications of microRNA dysregulation in human disease such as obesity, inflammation, microvasculature dysfunction, and related cardiovascular diseases. We highlight accumulating studies indicating that adipocyte-derived microRNAs may not only serve as biomarkers of cardiometabolic disease, but also may directly regulate gene expression of other tissues...
May 15, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28498891/adipose-tissue-depots-and-inflammation-effects-on-plasticity-and-resident-mesenchymal-stem-cell-function
#13
Lina Badimon, Judit Cubedo
Adipose tissue (AT) is a highly heterogeneous organ. Beside the heterogeneity associated to different tissue types (white, brown and "brite") and its location-related heterogeneity (subcutaneous, visceral, epicardial, and perivascular, etc), AT composition, structure and functionality is highly dependent on individual-associated factors. As such, the pro-inflammatory state associated to the presence of obesity and other cardiovascular risk factors directly affects AT metabolism. Furthermore, the adipose-derived stem cells (ASCs) that reside in the stromal vascular fraction (SVF) of AT, besides being responsible for most of the plasticity attributed to AT, is an additional source of heterogeneity...
May 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28498888/cardiomyocyte-specific-loss-of-mitochondrial-p32-c1qbp-causes-cardiomyopathy-and-activates-stress-responses
#14
Toshiro Saito, Takeshi Uchiumi, Mikako Yagi, Rie Amamoto, Daiki Setoyama, Yuichi Matsushima, Dongchon Kang
Aims: Mitochondria are important organelles, dedicated to energy production. Mitochondrial p32/C1qbp, which functions as an RNA and protein chaperone, interacts with mitochondrial mRNA and is indispensable for mitochondrial function through its regulation of mitochondrial translation in cultured cell lines. However, the precise role of p32/C1qbp in vivo is poorly understood because of embryonic lethality in the systemic p32-deficient mouse. The goal of this study was to examine the physiological function of mitochondrial p32/C1qbp in the heart...
May 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28482008/the-microcirculation-a-key-player-in-obesity-associated-cardiovascular-disease
#15
Oana Sorop, T Dylan Olver, Jens van de Wouw, Ilkka Heinonen, Richard W van Duin, Dirk J Duncker, Daphne Merkus
It is increasingly recognized that obesity is a risk factor for microvascular disease, i.e. results in structural and functional changes in the microvasculature. This review aims to describe how obesity impacts the microvasculature of visceral adipose tissue, skeletal muscle, heart, brain, kidneys and lungs. These changes involve endothelial dysfunction, which in turn impacts control of vascular tone, contributes to development of microvascular insulin resistance, alters secretion of paracrine factors like nitric oxide and endothelin, but also influences vascular structure and perivascular inflammation...
May 8, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28481973/t-tubular-collagen-a-new-player-in-mechanosensing-and-disease
#16
William E Louch, Stanley Nattel
No abstract text is available yet for this article.
May 8, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28472473/fgf21-is-required-for-cardiac-remodeling-in-pregnancy
#17
I Redondo-Angulo, A Mas-Stachurska, M Sitges, F J Tinahones, M Giralt, F Villarroya, A Planavila
Aims—: Fibroblast growth factor-21 (Fgf21) is an endocrine factor that contributes to many physiological and pathological processes, mainly via its action as a metabolic regulator. Recent studies have shown that Fgf21 plays an important role in cardiac tissue. Pregnancy offers a physiological model of adaptive and reversible heart enlargement, but the molecular mechanisms underlying this cardiac hypertrophy are poorly understood. Therefore, the aim was to analyze the role of Fgf21 during late pregnancy, and assess the physiological relevance of Fgf21 for cardiac tissue during this process...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28472457/matricellular-protein-thrombospondin-1-in-pulmonary-hypertension-multiple-pathways-to-disease
#18
Natasha M Rogers, Kedar Ghimire, Maria J Calzada, Jeffrey S Isenberg
Matricellular proteins are secreted molecules that have affinities for both extracellular matrix and cell surface receptors. Through interaction with structural proteins and the cells that maintain the matrix these proteins can alter matrix strength. Matricellular proteins exert control on cell activity primarily through engagement of membrane receptors that mediate outside-in signaling. An example of this group is thrombospondin-1 (TSP1), first identified as a component of the secreted product of activated platelets...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28472418/increased-passive-stiffness-promotes-diastolic-dysfunction-despite-improved-ca2-handling-during-left-ventricular-concentric-hypertrophy
#19
Åsmund T Røe, Jan Magnus Aronsen, Kristine Skårdal, Nazha Hamdani, Wolfgang A Linke, Håvard E Danielsen, Ole M Sejersted, Ivar Sjaastad, William E Louch
Aims: Concentric hypertrophy following pressure-overload is linked to preserved systolic function but impaired diastolic function, and is an important substrate for heart failure with preserved ejection fraction. While increased passive stiffness of the myocardium is a suggested mechanism underlying diastolic dysfunction in these hearts, the contribution of a ctive diastolic Ca 2+ cycling in cardiomyocytes remains unclear. In this study, we sought to dissect contributions of passive and active mechanisms to diastolic dysfunction in the concentrically hypertrophied heart following pressure-overload...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28472392/lung-ultrasound-as-a-translational-approach-for-non-invasive-assessment-of-heart-failure-with-reduced-or-preserved-ejection-fraction-in-mice
#20
María Villalba-Orero, Marina M López-Olañeta, Esther González-López, Laura Padrón-Barthe, Jesús M Gómez-Salinero, Jaime García-Prieto, Timothy Wai, Pablo García-Pavía, Borja Ibáñez, Luis J Jiménez-Borreguero, Enrique Lara-Pezzi
Methods and results: ─ We used LUS to study HF in a mouse model of systolic dysfunction, dilated cardiomyopathy, and in a mouse model of diastolic dysfunction, diabetic cardiomyopathy. LUS proved to be a reliable and reproducible tool to detect pulmonary congestion in mice. The combination of LUS and echocardiography allowed discriminating those mice that develop HF from those that do not, even in the presence of evident cardiac dysfunction. The study showed that LUS can be used to identify the onset of HF decompensation and to evaluate the efficacy of therapies for this syndrome...
May 4, 2017: Cardiovascular Research
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