Learn More
We have previously shown that remote ischemic preconditioning by limb ischemia (rIPC) or intra-arterial adenosine releases a dialyzable cardioprotective circulating factor(s), the release of which requires an intact neural connection to the limb and is blocked by pretreatment with S-nitroso-N-acetylpenicillamine (SNAP). Remote cardioprotection can be(More)
Remote ischemic preconditioning (rIPC) induced by cycles of transient limb ischemia and reperfusion is a powerful cardioprotective strategy with additional pleiotropic effects. However, our understanding of its underlying mediators and mechanisms remains incomplete. We examined the role of miR-144 in the cardioprotection induced by rIPC. Microarray studies(More)
Remote ischemic preconditioning (rIPC) induced by transient limb ischemia (li-rIPC) leads to neurally dependent release of blood-borne factors that provide potent cardioprotection. We hypothesized that transcutaneous electrical nerve stimulation (TENS) is a clinically relevant stimulus of rIPC. Study 1: seven rabbits were subjected to lower limb TENS; six(More)
rIPC [remote IPC (ischaemic preconditioning)] has been shown to invoke potent myocardial protection in animal studies and recent clinical trials. Although the important role of PI3K (phosphoinositide 3-kinase)/Akt activation in the cardioprotection afforded by local IPC is well described, our understanding of the intracellular signalling of rIPC remains(More)
Previous studies have shown that electroacupuncture (EA) can induce cardioprotection against ischemia–reperfusion (IR) injury, but its mechanisms are incompletely understood. We have previously shown that several other forms of remote preconditioning of the heart work, at least in part, via the release of circulating cardioprotective factors into the(More)
RATIONALE Neonatal mice have the capacity to regenerate their hearts in response to injury, but this potential is lost after the first week of life. The transcriptional changes that underpin mammalian cardiac regeneration have not been fully characterized at the molecular level. OBJECTIVE The objectives of our study were to determine whether myocytes(More)
OBJECTIVE  To investigate the relation between alcohol consumption and heart disease by using differences in county level alcohol sales laws as a natural experiment. DESIGN  Observational cohort study using differences in alcohol sales laws. SETTING  Hospital based healthcare encounters in Texas, USA. POPULATION  1 106 968 patients aged 21 or older(More)
BACKGROUND Catheter ablation for ventricular tachycardia and premature ventricular complexes (PVCs) is common. Catheter ablation of atrial fibrillation is associated with a risk of cerebral emboli attributed to cardioversions and numerous ablation lesions in the low-flow left atrium, but cerebral embolic risk in ventricular ablation has not been evaluated.(More)
BACKGROUND Ascertainment of hospitalizations is critical to assess quality of care and the effectiveness and adverse effects of various therapies. Smartphones, mobile geolocators that are ubiquitous, have not been leveraged to ascertain hospitalizations. Therefore, we evaluated the use of smartphone-based geofencing to track hospitalizations. METHODS AND(More)
BACKGROUND Alcohol consumption has been associated with atrial fibrillation (AF) in several epidemiologic studies, but the underlying mechanisms remain unknown. We sought to test the hypothesis that an atrial myopathy, manifested by echocardiographic left atrial enlargement, explains the association between chronic alcohol use and AF. METHODS AND RESULTS(More)