Rutaecarpine, an Alkaloid from Evodia rutaecarpa, Can Prevent Platelet Activation in Humans and Reduce Microvascular Thrombosis in Mice: Crucial Role of the PI3K/Akt/GSK3β  Signal Axis through a Cyclic Nucleotides/VASP—Independent Mechanism. Here, GSK3B is linked to deep vein thrombosis.