“…During this period, microglia not only have key functions such as the clearance of dying or dead cells. Several studies are emerging that demonstrate a role in developmental processes such as apoptosis, elimination of excess axons, promotion of neuroaxonal growth, axonal guidance, neuronal differentiation, regulation of embryonic cortical precursor cell development, astrocyte proliferation and angiogenesis [20,30,34,35,36,37,38,39,40,41,42,43,44,45]. Especially the role of microglia in neurogenesis is intriguing as, within the framework of CNS inflammation, the impact of this feature on the developing brain can be enormous.…”