As we age, our immune system quietly loses its edge, and scientists have uncovered a surprising reason why. A protein called platelet factor 4 naturally declines over time, allowing blood stem cells ...

This article is part of a series on recent advances in the science and medicine of longevity. What do blood transfusions, exercise, and a longevity hormone have in common? All three help improve ...

Heparin-induced thrombocytopenia (HIT) is an immune-mediated platelet disorder caused by antibodies that target complexes of platelet factor 4 (PF4) and heparin. HIT has been characterized as a ...

In a recent study posted to the bioRxiv* preprint server, researchers used cellular cryo-electron tomography (cryo-ET) to demonstrate the role of severe acute respiratory syndrome coronavirus 2 ...

Pharmaceutical giant AstraZeneca admitted in court this week that its COVID-19 vaccine can cause a rare but deadly blood-clotting condition that has become the central focus of a class-action lawsuit ...