supraoptic ( son ) , paraventricular ( pvn ) and arcuate ( arc ) nuclei , median eminence ( me ) region , and a1 region of medulla were obtained by micropunch from frozen brain sections and assayed for avp , tyrosine hydroxylase ( th ) activity , catecholamines , and their metabolites , dihydroxyphenylethyleneglycol ( dopeg ) and 2,5-dihydroxyphenylacetic acid ( dopac ) .
C0003741
arcuate
C0006104
brain