Patients whose hearts have a faulty mitral valve and are considered high risk for open-heart surgery now have a treatment option offered by cardiologists at the University of Vermont Medical Center. Called Transcatheter Mitral Valve Repair (TMVR), the procedure uses a catheter inserted through a vein in the leg to reach the heart and make the repair. The mitral valve performs a check-valve function and is located between the left atrium, where blood enters the heart from the lungs, and the left ventricle, which pumps the blood to your entire body.

In a June 29 National Geographic article, "Doctors Are Prescribing Park Visits to Boost Patient Health," Sean Wrenn, a surgeon at the UVM Medical Center weighs in on the pros and cons of the so-called "Park Prescription Program."

In cells, cargo that contains tiny packages of critical biological material, such as insulin, are transported by teams of minuscule myosin molecular “motors” along complex actin filament “highways.” How these motors reach their destination when confronted with numerous intersections without GPS is a mystery. In a new study published in Nature Communications, University of Vermont researchers built three-dimensional (3D) actin highways with intersections as well as under- and over-passes within microfluidic chambers to emulate the complicated highways that myosin motors see in cells.