the na selective neurotoxin n- ( 2-chloroethyl ) -n-ethyl-2-bromobenzylamine ( dsp 4 ) ( 50 mg/kg ip , 7 days ) was injected into mice to produce depletion of na in frontal cortex , hypothalamus , cerebellum , midbrain and brain stem without any significant change in dopamine ( da ) levels in frontal cortex , striatum , hypothalamus and midbrain .
C0006121
brain stem
C0025462
midbrain