Researchers have discovered a distinct, secondary population of platelets that appears with aging and have hyperreactive behavior and unique molecular properties, which could make them easier to ...

Platelets are small, disc-shaped cell fragments in the blood that are essential to stop bleeding and to initiate blood clotting after injury. Platelet transfusions in patients with severe trauma or ...

Human bodies make 2 million red blood cells per second. They each live for 120 days and spend that time zooming completely around the body every 20 seconds, carrying oxygen from the lungs to other ...

When a vascular injury occurs, platelets in young mice form much smaller blood clots (left) than platelets in old mice (right), where the clot almost blocks the blood vessel. Fluorescence microscopy ...