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Cardiovascular MR

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https://www.readbyqxmd.com/read/29455787/cardiovascular-risk-factors-profile-in-patients-with-acute-coronary-syndrome-with-particular-reference-to-left-ventricular-ejection-fraction
#1
Sheeren Khaled, Rajaa Matahen
BACKGROUND: Acute coronary syndrome (ACS) remains a leading cause of death in the United States. Numerous studies have shown that the degree of LV systolic dysfunction is a major if not the most important determinant of long-term outcome in ACS. OBJECTIVES: To identify the most important risk factors and other clinical predictors which might have impact on left ventricular ejection fraction in patients with ACS. RESULTS: The total patients (299) admitted to our center from July, 2015 till December, 2015; with established diagnosis of ACS were classified in to two groups: Group I: 193 patients with impaired LVEF <40% (64...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29453308/sex-specific-mechanisms-of-resistance-vessel-endothelial-dysfunction-induced-by-cardiometabolic-risk-factors
#2
Ana P Davel, Qing Lu, M Elizabeth Moss, Sitara Rao, Imran J Anwar, Jennifer J DuPont, Iris Z Jaffe
BACKGROUND: The incidence of obesity is rising, particularly among women. Microvascular dysfunction is more common with female sex, obesity, and hyperlipidemia and predicts adverse cardiovascular outcomes, but the molecular mechanisms are unclear. Because obesity is associated with mineralocorticoid receptor (MR) activation, we tested the hypothesis that MR in endothelial cells contribute to sex differences in resistance vessel dysfunction in response to cardiometabolic risk factors. METHODS AND RESULTS: Male and female endothelial cell-specific MR knockout mice and MR-intact littermates were randomized to high-fat-diet-induced obesity or obesity with hyperlipidemia induced by adeno-associated virus-based vector targeting transfer of the mutant stable form (DY mutation) of the human PCSK9 (proprotein convertase subtilisin/kexin type 9) gene and compared with control diet...
February 16, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29437585/mr-phewas-exploring-the-causal-effect-of-sua-level-on-multiple-disease-outcomes-by-using-genetic-instruments-in-uk-biobank
#3
Xue Li, Xiangrui Meng, Athina Spiliopoulou, Maria Timofeeva, Wei-Qi Wei, Aliya Gifford, Xia Shen, Yazhou He, Tim Varley, Paul McKeigue, Ioanna Tzoulaki, Alan F Wright, Peter Joshi, Joshua C Denny, Harry Campbell, Evropi Theodoratou
OBJECTIVES: We aimed to investigate the role of serum uric acid (SUA) level in a broad spectrum of disease outcomes using data for 120 091 individuals from UK Biobank. METHODS: We performed a phenome-wide association study (PheWAS) to identify disease outcomes associated with SUA genetic risk loci. We then implemented conventional Mendelian randomisation (MR) analysis to investigate the causal relevance between SUA level and disease outcomes identified from PheWAS...
February 6, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29411168/advances-in-cardiovascular-mr-imaging
#4
EDITORIAL
Tim Leiner, Gustav Strijkers
No abstract text is available yet for this article.
February 6, 2018: Magma
https://www.readbyqxmd.com/read/29401483/alcohol-consumption-but-not-smoking-is-associated-with-higher-mr-derived-liver-fat-in-an-asymptomatic-study-population
#5
Christian Bayerl, Roberto Lorbeer, Margit Heier, Christa Meisinger, Susanne Rospleszcz, Anina Schafnitzel, Hannah Patscheider, Sigrid Auweter, Annette Peters, Birgit Ertl-Wagner, Maximilian Reiser, Fabian Bamberg, Holger Hetterich
BACKGROUND: The aim of our study was to determine the relation of alcohol consumption and cigarette smoking on continuous-measured hepatic fat fraction (HFF) in a population free of cardiovascular disease. We suggested a direct correlation of alcohol consumption with HFF and increased HFF in former smokers compared to current smokers. METHODS: Data from 384 subjects (mean age: 56 years, 58% men) of a population-based cohort study (KORA) were included in a cross-sectional design...
2018: PloS One
https://www.readbyqxmd.com/read/29391190/epidermal-growth-factor-receptor-extracellular-signal-regulated-kinase-pathway-enhances-mineralocorticoid-receptor-transcriptional-activity-through-protein-stabilization
#6
Yuko Mitsuishi, Hirotaka Shibata, Isao Kurihara, Sakiko Kobayashi, Kenichi Yokota, Ayano Murai-Takeda, Takeshi Hayashi, Rie Jo, Toshifumi Nakamura, Mitsuha Morisaki, Hiroshi Itoh
Activation of mineralocorticoid receptor (MR) is evoked by aldosterone, and it induces hypertension and cardiovascular disease when it's concomitant with excessive salt loading. We have proposed the notion of "MR-associated hypertension", in which add-on therapy of MR blockers is effective even though serum aldosterone level is within normal range. To elucidate its underlying molecular mechanism, we focused on the effect of epidermal growth factor receptor (EGFR)/extracellular signal-regulated kinase (ERK) activation on MR activity...
January 30, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29385112/calcium-phosphate-metabolism-disturbances-in-patients-with-significant-mitral-regurgitation
#7
Olga Możeńska, Jacek Bil, Agnieszka Segiet, Dariusz A Kosior
INTRODUCTION    Although several risk factors associated with cardiovascular diseases (CVDs) are known, new factors continue to be researched. In recent years, clinical trials have reported vitamin D and other calcium-phosphate (Ca-P) metabolism disturbances as potential new risk factors.  OBJECTIVES    Considering the frequency of Ca-P metabolism disturbances and mitral regurgitation (MR) in general population and in patients with CVD, the aim of our study was to assess the extent of Ca-P metabolism disturbances and their potential determining factors in patients with CVD...
January 26, 2018: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/29379234/cardiac-magnetic-resonance-techniques-our-experience-on-wide-bore-3-tesla-magnetic-resonance-system
#8
Onkar B Auti, Kalashree Bandekar, Nikhil Kamat, Vimal Raj
Cardiovascular magnetic resonance (CMR) has become a widely adapted imaging modality in the diagnosis and management of patients with cardiovascular diseases. It provides unparalleled data of cardiac function and myocardial morphology. Majority of CMR imaging is currently being performed on 1.5 Tesla (T) MR systems. Over the last many years, the cardiac imaging protocols have been standardized and optimized in the 1.5T systems. 3T MR systems are now being used more and more in small and large institutions in our country due to their proven advantages in the field of neuro, body, and musculoskeletal imaging...
October 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29368965/consensus-statement-by-the-american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-on-the-comprehensive-type-2-diabetes-management-algorithm-2018-executive-summary
#9
Alan J Garber, Martin J Abrahamson, Joshua I Barzilay, Lawrence Blonde, Zachary T Bloomgarden, Michael A Bush, Samuel Dagogo-Jack, Ralph A DeFronzo, Daniel Einhorn, Vivian A Fonseca, Jeffrey R Garber, W Timothy Garvey, George Grunberger, Yehuda Handelsman, Irl B Hirsch, Paul S Jellinger, Janet B McGill, Jeffrey I Mechanick, Paul D Rosenblit, Guillermo E Umpierrez
A1C = hemoglobin A1C; AACE = American Association of Clinical Endocrinologists; ACCORD = Action to Control Cardiovascular Risk in Diabetes; ACCORD BP = Action to Control Cardiovascular Risk in Diabetes Blood Pressure; ACEI = angiotensin-converting enzyme inhibitor; ADVANCE = Action in Diabetes and Vascular Disease: Preterax and Diamicron MR Controlled Evaluation; AGI = alpha-glucosidase inhibitor; apo B = apolipoprotein B; ASCVD = atherosclerotic cardiovascular disease; BAS = bile acid sequestrant; BCR-QR = bromocriptine quick release; BMI = body mass index; BP = blood pressure; CCB = calcium channel blocker; CHD = coronary heart disease; CKD = chronic kidney disease; CVD = cardiovascular disease; DASH = Dietary Approaches to Stop Hypertension; DPP4 = dipeptidyl peptidase 4; eGFR = estimated glomerular filtration rate; ER = extended release; FDA = Food and Drug Administration; GLP1 = glucagon-like peptide 1; HDL-C = high-density lipoprotein cholesterol; IMPROVE-IT = Improved Reduction of Outcomes: Vytorin Efficacy International Trial; LDL-C = low-density lipoprotein cholesterol; LDL-P = low-density lipoprotein particle; Look AHEAD = Look Action for Health in Diabetes; NPH = neutral protamine Hagedorn; OSA = obstructive sleep apnea; RCT = randomized controlled trial; SU = sulfonylurea; SGLT2 = sodium glucose cotransporter-2; SMBG = self-monitoring of blood glucose; T2D = type 2 diabetes; TZD = thiazolidinedione; VADT = Veterans Affairs Diabetes Trial...
January 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29348025/pet-mr-imaging-of-malondialdehyde-acetaldehyde-epitopes-with-a-human%C3%A2-antibody-detects-clinically%C3%A2-relevant-atherothrombosis
#10
Max L Senders, Xuchu Que, Young Seok Cho, Calvin Yeang, Hannah Groenen, Francois Fay, Claudia Calcagno, Anu E Meerwaldt, Simone Green, Phuong Miu, Mark E Lobatto, Thomas Reiner, Zahi A Fayad, Joseph L Witztum, Willem J M Mulder, Carlos Pérez-Medina, Sotirios Tsimikas
BACKGROUND: Oxidation-specific epitopes (OSEs) are proinflammatory, and elevated levels in plasma predict cardiovascular events. OBJECTIVES: The purpose of this study was to develop novel positron emission tomography (PET) probes to noninvasively image OSE-rich lesions. METHODS: An antigen-binding fragment (Fab) antibody library was constructed from human fetal cord blood. After multiple rounds of screening against malondialdehyde-acetaldehyde (MAA) epitopes, the Fab LA25 containing minimal nontemplated insertions in the CDR3 region was identified and characterized...
January 23, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29344918/artifact-free-quantitative-cardiovascular-pet-mr-imaging-an-impossible-dream
#11
EDITORIAL
Habib Zaidi, Rene Nkoulou
No abstract text is available yet for this article.
January 17, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29343179/b-type-natriuretic-peptide-for-prediction-of-incident-clinically-significant-abdominal-aortic-aneurysm-a-population-based-prospective-study
#12
Stefan Acosta, Anders Gottsäter, Gunnar Engström, Olle Melander, Moncef Zarrouk, Peter M Nilsson, J Gustav Smith
Pathogenesis of abdominal aortic aneurysm (AAA) is unclear. The aim of this study was to evaluate inflammatory and hemodynamic plasma biomarkers as predictors for AAA in the prospective longitudinal cohort of middle-aged individuals from the cardiovascular cohort of the Malmö Diet and Cancer Study ( n=5551; 1991-94). C-reactive protein, cystatin C, copeptin, N-terminal pro-B-type natriuretic peptide (N-BNP), midregional pro-atrial natriuretic peptide (MR-proANP) and conventional risk factors at baseline were measured in patients with incident AAA during follow-up and compared to individuals without a diagnosis of AAA...
January 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29320330/cardiovascular-manifestations-and-complications-of-loeys-dietz-syndrome-ct-and-mr-imaging-findings
#13
William W Loughborough, Kishore S Minhas, Jonathan C L Rodrigues, Stephen M Lyen, Helen E Burt, Nathan E Manghat, Marcus J Brooks, Graham Stuart, Mark C K Hamilton
Loeys-Dietz syndrome (LDS) is a recently described genetic connective tissue disorder with a wide spectrum of multisystem involvement. LDS is characterized by rapidly progressive aortic and peripheral arterial aneurysmal disease. LDS and the other inherited aortopathies such as Marfan syndrome have overlapping phenotypic features. However, LDS is characterized by a more aggressive vascular course; patient morbidity and mortality occur at an early age, with complications developing at relatively smaller aortic dimensions...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29320324/spectrum-of-coronary-artery-aneurysms-from-the-radiologic-pathology-archives
#14
Jean Jeudy, Charles S White, Seth J Kligerman, Jonathan L Killam, Allen P Burke, Jacob W Sechrist, Amar B Shah, Rydhwana Hossain, Aletta Ann Frazier
Advances in medical diagnosis reveal that coronary artery aneurysms (CAAs) may develop in several clinical scenarios and manifest variable symptoms, imaging appearances, and outcomes. Aneurysms are pathologically classified into three groups: atherosclerotic, inflammatory, and noninflammatory. The last category is associated with congenital, inherited, and connective tissue disorders. Overlap exists among the groups, because secondary atherosclerotic change may be present in an aneurysm of any cause. Atherosclerosis is the most common cause of CAAs in adults, and inflammation is considered the underlying mechanism...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29319785/diagnostic-accuracy-and-prognostic-value-of-simultaneous-hybrid-18f-fluorodeoxyglucose-positron-emission-tomography-magnetic-resonance-imaging-in-cardiac-sarcoidosis
#15
Eleanor C Wicks, Leon J Menezes, Anna Barnes, Saidi A Mohiddin, Neha Sekhri, Joanna C Porter, Helen L Booth, Emily Garrett, Riyaz S Patel, Menelaos Pavlou, Ashley M Groves, Perry M Elliott
Aims: Cardiac death is the leading cause of mortality in patients with sarcoidosis, yet cardiac involvement often remains undetected. Cardiovascular magnetic resonance imaging (CMR) and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) have been used to diagnose cardiac sarcoidosis (CS) yet never simultaneously in a cohort. This study sought to assess the diagnostic and prognostic utility of simultaneous hybrid cardiac PET/MR. Methods and results: Fifty-one consecutive patients with suspected CS (age 50 ± 13 years, 31 males) underwent simultaneous PET/MR following a high-fat/low-carbohydrate diet and 12-h fast...
January 8, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29302945/a-new-method-to-evaluate-atrial-hemodynamic-and-quantify-mitral-regurgitation-using-cardiovascular-magnetic-resonance-the-pulmonary-venous-flow-approach
#16
Giovanni Benfari, Giulia Vinco, Karl Sayegh, Matthias Friedrich, Andrea Rossi
Pulmonary venous flow (PVF) provides incremental information on left ventricular (LV) diastolic function, and can support the diagnosis of severe mitral regurgitation (MR). The suggestion has been made to combine the left atrial filling volume (LA Fill) and PVF for estimating the mitral regurgitant volume, but echocardiographic PVF evaluation is known to have many limitations. The present case report includes an example of how to assess PVF using cardiovascular magnetic resonance, and a new method is proposed for quantification of the mitral regurgitant volume...
July 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29295870/effect-of-liraglutide-on-atrial-natriuretic-peptide-adrenomedullin-and-copeptin-in-pcos
#17
Signe Frøssing, Malin Nylander, Caroline Kistorp, Sven O Skouby, Jens Faber
CONTEXT: Women with polycystic ovary syndrome (PCOS) have an increased risk of cardiovascular disease (CVD), and biomarkers can be used to detect early subclinical CVD. Midregional-pro-adrenomedullin (MR-proADM), midregional-pro-atrial natriuretic peptide (MR-proANP) and copeptin are all associated with CVD and part of the delicate system controlling fluid and hemodynamic homeostasis through vascular tonus and diuresis. The GLP-1 receptor agonist liraglutide, developed for treatment of type 2 diabetes (T2D), improves cardiovascular outcomes in patients with T2D including a decrease in particular MR-proANP...
January 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29289651/neutrophil-gelatinase-associated-lipocalin-from-immune-cells-is-mandatory-for-aldosterone-induced-cardiac-remodeling-and-inflammation
#18
Mathieu Buonafine, Ernesto Martínez-Martínez, Cristian Amador, Basile Gravez, Jaime Ibarrola, Amaya Fernández-Celis, Soumaya El Moghrabi, Patrick Rossignol, Natalia López-Andrés, Frédéric Jaisser
Immune system activation is involved in cardiovascular (CV) inflammation and fibrosis, following activation of the mineralocorticoid receptor (MR). We previously showed that Neutrophil Gelatinase-Associated Lipocalin (NGAL) is a novel target of MR signaling in CV tissue and plays a critical role in aldosterone/MR-dependent hypertension and fibrosis. We hypothesized that the production of NGAL by immune cells may play an important part in the mediation of these deleterious mineralocorticoid-induced effects. We analyzed the effect of aldosterone on immune cell recruitment and NGAL expression in vivo...
December 28, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29288037/simulation-based-quantification-of-native-t1-and-t2-of-the-myocardium-using-a-modified-molli-scheme-and-the-importance-of-magnetization-transfer
#19
Christos G Xanthis, Sebastian Bidhult, Andreas Greiser, Kelvin Chow, Richard B Thompson, Håkan Arheden, Anthony H Aletras
Quantitative cardiovascular Magnetic Resonance Imaging techniques are gaining wide acceptance within the MR community due to their potential to diagnose non-localized disease, guide therapy and improve patient outcome. During the last decade, there has been an increasing interest for developing new techniques that allow for simultaneous quantification of both T1 and T2 maps of myocardium. Newer studies demonstrated that the incorporation of MRI simulations could yield similar results to conventional mapping techniques in the myocardium...
December 26, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29259787/renin-angiotensin-system-inhibitors-in-patients-with-or-without-ischaemic-mitral-regurgitation-after-acute-myocardial-infarction
#20
Kitae Kim, Shuichiro Kaji, Manabu Kasamoto, Ryosuke Murai, Yasuhiro Sasaki, Takeshi Kitai, Takafumi Yamane, Natsuhiko Ehara, Atsushi Kobori, Makoto Kinoshita, Yutaka Furukawa
Objective: Little is known about the long-term effects of renin-angiotensin system inhibitors (RASI) on cardiovascular events in patients after acute myocardial infarction (AMI) with ischaemic mitral regurgitation (IMR). The purpose of this study was to investigate the association of RASI with the incidence of adverse cardiac events in patients with or without IMR after AMI. Methods: We reviewed charts of 1208 consecutive patients admitted with AMI who underwent emergency coronary angiography between 2000 and 2012...
2017: Open Heart
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