Treatment with levothyroxine (25 μg/kg intraperitoneal) 1 h after traumatic brain injury stimulated mRNA expression of genes encoding MCT8, DIO2, and DIO3; genes related with neuronal survival and neurogenesis, namely Bcl2, vascular endothelial growth factor A (Vegfa), Sox2, and neurotrophin (Ntf ) in the cortex, and of inducible nitrite oxide synthase 2 (Nos2) (107). Here, VEGFA is linked to brain injury.