Neonatal lipopolysaccharide exposure induces long-lasting learning impairment, less anxiety-like response and hippocampal injury in adult rats

► Neonatal LPS exposure results in long-lasting learning deficits in adult rats. ► Neonatal LPS exposure causes long-lasting anxiolytic responses in adult rats. ► Neonatal LPS exposure causes persistent hippocampal injuries in adult rats. ► Neonatal LPS exposure results in chronic inflammatory responses in adult rats.