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. Dr Greg Hundley:             And I'm Greg Hundley, also associate editor from VCU Health Systems, the Poly Heart Center in Richmond, Virginia. Dr Carolyn Lam:                So arrhythmogenic cardiomyopathy that will make most of us think of right ventricular disease and fatty infiltration of the muscle, but could arrhythmogenic cardiomyopathy really be a bi-ventricular disease? Well you've got to stay tuned to find out more in a fantastic interview coming right up after our little coffee chat. So Greg, what are your picks this week? Dr Greg Hundley:             My first paper is from Chris Lim at NYU in New York. And it's looking at the relationship between Mediterranean diet, air pollution and cardiovascular events.                                                 So, it's unknown whether usual individual dietary patterns can modify the association between long-term air pollution exposure and health outcomes. And so, in this large cohort with detailed diet information at the individual level, they had 548000 individuals across six states and two cities within the U.S. and a follow up period of 17 years. And that occurred between 1995 and 2011. And they evaluated whether a Mediterranean Diet modified the association between long-term exposure to ambient air pollution and then cardiovascular disease and mortality risk. And so, the average exposures to parts per billion and nitric oxide air pollution that the residential census track level were measured, and the investigators found that for the particulate matter there were elevated significant associations with cardiovascular disease. So, a hazard ratio of 1.13, ischemic heart disease similar hazard ratio and cerebrovascular disease with also a similar hazard ratio.                                                 For the nitric oxide, there were also significant associations with cardiovascular disease, as well as ischemic heart disease. And then the analysis indicated that Mediterranean diet modified the relationships. Those with a higher Mediterranean diet score had significantly lower rates of air pollution related mortality. These results therefore indicate Carolyn, that Mediterranean diet reduce cardiovascular disease mortality related to long-term exposure to air pollutants in a large perspective, U.S. cohort. Can you believe increased consumption of foods rich in antioxidant compounds actually may aid in reducing the considerable disease burden associated with ambient air pollution? Dr Carolyn Lam:                Oh wow. That is hugely interesting. Gosh, what do we do about this clinically now?  Dr Greg Hundley:            Remember, first of all, this is an associate study, so we can't infer cause effect. And what we need next are some more independent studies from other cities around the world, prospective cohorts, examinations of clinical outcomes and randomize interventions. And so, I think the results add to a growing body of literature suggesting that dietary patterns may help reduce cardiovascular events in these high air pollution exposure areas. And how does this work? Well, potentially through augmenting antioxidants and reducing oxidative stress. Dr Carolyn Lam:                That's really cool. So from one region, talking about air pollution to another region that often reports about air pollution and that's China. But this study from China is actually the largest registry study to evaluate sex related differences and hospital management and outcomes of patients with acute coronary syndrome in China.                                                 This is from corresponding author Dr Zhao from Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Disease. W