Circulation On The Run

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore. Our podcast today highlights an important perspective piece on charting a future together and turning discovery science into cardiovascular health. You don't want to miss this, coming up right after these summaries. The first original paper tells us about the importance of changes in exercise capacity following transcatheter aortic valve replacement or TAVR.                                                 First author, Dr. Altisent, corresponding author, Dr. Rodés-Cabau, and colleagues from Quebec Heart and Lung Institute in Canada studied a total of 305 patients undergoing TAVR with baseline and six month followup exercise capacity assessments by six minute walk tests. They found that close to one-third of patients undergoing TAVR failed to improve their

Carolyn:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center and Duke National University of Singapore.                                 Later on in this podcast, we will be meeting Dr. Nancy Schweitzer, Editor-in-Chief of the new Circulation Heart Failure. We will be discussing today's feature paper on acute myocarditis as well as hearing about her visions for the journal. All that coming right up after these summaries.                                 The first original paper this week suggests that day-to-day blood pressure variability may be a significant risk factor for dementia. First author Dr. Oishi, corresponding author Dr. Ohara, and colleagues of Kyushu University from Fukuoka, Japan, studied a total of 1,674 community-dwelling Japanese elderly without dementia, who were followed up for five years, and had home blood pressure measured three times every mo

Dr. Carolyn Lam:               Welcome to Circulation on the Run your weekly podcast summary and backstage pass to the Journal and it's editors. I'm Dr. Carolyn Lam associate editor from the National Heart Center and Duke National University of Singapore.                                                 Our feature paper this week provides important mechanistic insights into oxidative stress and inflammation with aging. More of that soon right after the summary of this week's journal.                                                 The first paper contributes to our understanding of the genetic and functional relevance of soluble guanylyl cyclase activity for coronary artery disease. As background, a chromosomal locus at 4q32.1 has been associated with coronary artery disease risk with genome wide significance. The locus encompasses GUCY1A3, which encodes the alpha one subunit of the soluble guanylyl cyclase, a key enzyme of the nitric oxide cyclic GMP signaling pathway.                                     

Dr. Carolyn Lam:               Welcome to Circulation On The Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore. Our journal this week features an in-depth review on transcatheter therapy for mitral regurgitation, a very, very hot and interesting topic. You have to listen on, coming up right after these summaries.                                                 Our first original paper this week sheds light on the influence of aging on aldosterone secretion and physiology. First author Dr. Nanba, corresponding author Dr. Rainey and colleagues from the University of Michigan in United States, examine the relationship between age and adrenal aldosterone synthase in 127 normal adrenals from deceased kidney donors. The donors' ages ranged from nine months to 68 years. The authors found that adrenals from older individuals displayed less normal aldosterone synthase expres

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor, from the National Heart Center and Duke-National University of Singapore.                                                 Now, the SGLT2 inhibitor, empagliflozin, has been shown to improve outcomes in the EMPA-REG OUTCOMES trial. But do these benefits also apply in the real world, and to other SGLT2 inhibitors as a class? Well, we may just have some answers this week in the CVD-REAL study. More soon right after these summaries.                                                 The first original paper this week uncovers the mechanism of beneficial action of T-cells for proper healing after myocardial infarction. Now, the pro-inflammatory danger signal, adenosine triphosphate or ATP, is released from damaged cells, and degraded by the ectonucleotidase CD73 to the anti-inflammatory mediator, adenosine.                            

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Youth National University of Singapore. Coming right up, we will be discussing fascinating new data on the prevalence of subclinical coronary artery disease in masters endurance athletes but first, here's your summary of this week's journal. The first paper provides insight into ischemic cellular post conditioning. Now, we know that cardiosphere derived cell therapy has been utilized as a strategy to treat ischemic heart disease and reduce chronic scar burden when administered months after myocardial infarction. In the current study, by first author Dr. de Couto, corresponding authors Dr. Marban and Berman from Cedars-Sinai Heart Institute in Los Angeles, California, the authors used rat and pig models of myocardial infarction to show that exosomes, which are nanosize lipid bi-layer vesicles, ac

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore. What is the association between fetal congenital heart defects and maternal risk of hypertensive disorders of pregnancy? We will be discussing new data in this area in just a moment, following these summaries.                                                 The first paper describes the effect of long-term metformin and lifestyle measures on coronary artery calcium. This is a paper from Dr. Goldberg of George Washington University Biostatistics Center and colleagues of the Diabetes Prevention Program Research Group. The Diabetes Prevention Program and its outcome study is a long-term intervention study in subjects with prediabetes, which showed reduced diabetes risk with lifestyle and metformin compared to placebo.                                         

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center and Duke National University of Singapore, and I'm just so thrilled to be joined by a co-host today and that's Dr. Amit Khera. He's the Editor of Digital Strategies for Circulation from UT Southwestern. Welcome, Amit. Dr. Amit Khera:                 Hi, Carolyn. Thank you for letting me participate today and we're excited about this Fit featured podcast. Dr. Carolyn Lam:               We have a very special episode today. First of all, because we don't have a print issue that follows this week and so, there's no usual summaries, but we do have special guests and these are the Fellows-in-Training.                                                 Now, we sent out a call online to all the fellows to tell us a bit about themselves as well as which articles in Circulation stood out to them, and we had an

Dr. Carolyn Lam:               Welcome to Circulation on the Run your weekly podcast summary and backstage pass to the journal and it's editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore.                                                 Is it time to end our debates on short versus long duration of dual anti-platelet therapy? Well I will be discussing this with two very special guests in just a moment. But first here is your summary of this week's journal.                                                 The first paper tells us that HDL particle number may serve as a biomarker of residual risk when assessed on statin therapy. First author Dr. Khera, corresponding author Dr. Mora from Brigham and Women's Hospital and colleagues of the JUPITER trial assessed HDL cholesterol levels, apolipoprotein A-1, cholesterol efflux capacity and HDL particle number at baseline and 12 month in a nested case control study of the JUPITER trial. That was a ra

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center, and Duke National University of Singapore.                                                 In our feature discussion today, we will be talking about insights from the PROMISE Trial regarding the prognostic value of non-invasive cardiovascular testing in patients with stable chest pain. First, here's your summary of this week's journal.                                                 The first paper reports novel findings on gene smoking interactions in coronary heart disease. Co-corresponding authors Dr. Salahin from the University of Pennsylvania and Dr. Riley from Columbia University and colleagues used data on almost 61,000 coronary heart disease cases and more than 80,000 controls to investigate effect modification by smoking behavior at established coronary heart disease and smoking-related

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center, and Duke National University of Singapore. Our featured paper today provides important trial evidence that will guide interventional management of symptomatic femoral artery disease, but first, here's your summary of this week's journal.                                                 The first paper sheds light on the interaction between left ventricular dysfunction and mesenchymal stromal cell activation. First author, Dr. Naftali-Shani. Corresponding author, Dr. Leor and colleagues from Neufeld Cardiac Research Institute in Israel isolated mesenchymal stromal cells from cardiac and subcutaneous fat tissues of mice with left ventricular dysfunction, 28 days after myocardial infarction or sham operation. They further injected mesenchymal stromal cells or saline into the infracted myocardium of mi

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center, and Duke National University of Singapore. Our featured paper this week confirms the clinical utility of a polygenic risk score of common variants of cardiovascular disease. More soon after this week’s summary of articles.                                 The first original article describes distinct cell-specific roles for NADPH oxidase, or Nox2, in blood pressure regulation. This paper from first author, Dr. Sag, corresponding author, Dr. Shah, colleagues from King's College London British Heart Foundation Center of Excellence in the United Kingdom. The authors used novel gene modified mouse models to show that Nox2 in myeloid cells modulates basal blood pressure whereas endothelial cell Nox2 is involved in angiotensin II-dependent hypertension. The finding that Nox2 in different cell types has d

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center and Duke National University of Singapore. In just a moment we'll take a deep dive into hemo-compatibility-related outcomes in the MOMENTUM 3 trial of a fully magnetically levitated pump in advanced heart failure. But first, here's your summary of this week's journal.                                                 The first paper sheds light on the biological mechanisms underlying cardioprotective effects of the Mediterranean diet. First author, Dr. Wang, corresponding author Dr. Hu and colleagues of Harvard, TH Chan, School of Public Health in Boston, Massachusetts studied 980 participants from the PREDIMED Trial including 230 incident cases of cardiovascular disease and 787 randomly selected participants at baseline followed up for 7.4 years.                                                 Part

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carlolyn Lam, associate editor from the National Heart Center, and Duke National University of Singapore. What's the link between DPP4 and aortic valve calcification? Well, to find out, keep listening because we'll be discussing this and an important new paper right after these summaries.                                 The first original paper in this issue tells us that high sensitivity Troponin I, may have a role in personalizing preventive strategies in patients with Type II Diabetes. Dr. Cavender and colleagues from University of North Carolina, Chapel Hill, sought to describe the relationship between changes in high sensitivity Troponin I and cardiovascular outcomes in the EXAMINE phase 3B trial, which was designed to evaluate the cardiovascular safety of alogliptin. The current analysis was restricted to patients, randomized 30 days or more after the

Dr. Carolyn Lam:               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, Associate Editor from the National Heart Center, and Duke National University of Singapore. In just a moment, we will be discussing the sources of sodium in the US diet, results that may surprise you, and that carry profound public health importance. But first, here's your summary of this week's issue.                                                 The first original paper advances the field of cardiac tissue engineering by establishing a defined serum-free protocol to generate functional human myocardium from pluripotent stem cells. In this paper by first author, Dr. Tiburcy, corresponding author Dr. Zimmermann and colleagues from the University Medical Center Goettingen in Germany, the authors systematically investigated cell composition, matrix and media conditions to generate engineered human myocardium from embryonic and induced pluripoten

Dr Carolyn Lam:                Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Doctor Carolyn Lam, associate editor for the National Heart Center and Duke National University of Singapore. Our feature paper today presents the first information on the impact of cardiovascular health in middle age and the burden of mobility in older age. This exciting data is from the Chicago Heart Association study. First, let me give you your summary of this week's journal.                                                 The first study tells us that patients with long QT syndrome type II are at increased risk of hypoglycemia. First author, Doctor Hilton Cavallius, co-corresponding authors Doctor Tarakov and Hanson from University of Copenhagen, Denmark, noticed that loss of function mutations in HERG, which encodes the voltage gate at potassium channel 11.1, causes long QT syndrome II, but that the specific voltage gate at potassium channels are also pres

Dr Carolyn Lam:                Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore. Our feature paper this week really adds to our understanding of the cause/effect relationship between obesity and heart failure, this time by comparing the effects of gastric bypass surgery versus intensive lifetime treatment on heart failure risk. Before we talk about that, though, let me give you your summary of this week's journal.                                                 The first paper brings us one step closer to understanding cardiac recovery in response to mechanical unloading by left ventricular assist devices and it does this by showing that this process may involve the transverse tubular system, which is a micro structural feature of ventricular cardiomyocytes important for contractility and consisting of tubular invaginations of the sarc

Dr Carolyn Lam:                Welcome to Circulation On the Run, your weekly podcast summary and backstage pass to the journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center, and Duke National University of Singapore. Our feature paper this week discusses the very important patient group with myocardial infarction and non-obstructive coronary artery disease, a paper that we will be digging deep into right after these summaries.                                                 The first paper identifies a novel therapeutic target in pulmonary arterial hypertension, and that is nicotinamide phosphoribosyltransferase, a cytozyme which regulates intracellular NAD levels and cellular redox state, regulates histone deacetylases, promotes cell proliferation, and inhibits apoptosis.                                                 This is a paper from first author Dr. Chen and co-corresponding authors Dr. Machado from University of Illinois Chicago and Dr. Garcia from the Unive

Dr Carolyn Lam:                Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to The Journal and its editors. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore.                                                 Today's issue features two exciting papers regarding heart failure in patients with breast cancer. We will be discussing this right after these summaries.                                                 Are we any closer to improving survival in Eisenmenger syndrome? Well, today's first original paper looks at contemporary trends and presents a multivariable mortality risk stratification model based on five simple noninvasive predictors of death in this population. Dr. Kempny and colleagues from Royal Brompton Hospital in London in the United Kingdom preform a large multicenter study in 1098 patients with Eisenmenger syndrome followed up between years 2000 and 2015.                                          

Carolyn:                               Welcome to Circulation on the Run, your weekly podcast summary and backstage pass to The Journal and its editor's. I'm Dr. Carolyn Lam, associate editor from the National Heart Center and Duke National University of Singapore. Our Journal this week features important new data telling us that a common genetic variant risk score is associated with risk of drug induced QT prolongation and torsades de pointes.                                                 First, let's give you your summary of this week's journal. The first paper provides both clinical and experimental data to show that the adipokine, retinal binding protein four promotes atherosclerosis. First author, Dr. Liu, corresponding author, Dr. Xia and colleagues from Sun Yat Sen University in Guangzhou, China first evaluated the association between serum retinal binding four levels and the incidents of adverse cardiovascular events in a community based prospective cohort and then examined the effects of retinal