the dependence of brain and plasma 3,4-dihydroxyphenylethyleneglycol ( dhpg ) formation upon cns noradrenergic neutronal activity was evaluated following manipulations that are known to alter the firing rate of the locus coeruleus ( lc ) neurons and as a consequence , noradrenaline ( na ) release and turnover .
C0006104
brain
C0023951
locus coeruleus