MAPK3 and intracerebral hemorrhage: The administration of exosomes containing miR-133b also contributed to the inhibition of ras homolog gene family member A (RhoA) and activation of extracellular signal-regulating kinase 1/2 (ERK1/2) and cAMP response element-binding protein (CREB) pathway and thus amelioration of neuronal apoptosis and neurodegeneration in rats after intracerebral hemorrhage [105].