Microinfused

Rats were randomly assigned as groups 1 to 5: Group 1: sham control ( n = 7), in which 10 μ L of saline was microinfused (1 μ L/min) proximate to the root of MCA at 0 min; Group 2: G-CSF ( n = 11), in which 200 μ g/kg of G-CSF (Kirin Pharma.