SAN DIEGO (Reuters) - Scientists have for the first time created blood platelet cells by reprogramming stem cells derived from adult cells, offering the potential for a renewable supply of the fragile ...

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 ...

Innate immune system cells control megakaryopoiesis They discovered that the progenitor cells of MKs are fully consumed and constantly replaced during platelet formation (thrombopoiesis). This ...

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 ...

Trauma, infection, and other pathological conditions trigger inflammation as a first line of defense. Immune cells rush to the site of injury or acute illness to make repairs and stem further damage.