intracerebroventricular ( icv ) administration of the selective mu agonist [ d-ala2 , mephe4 , gly-ol5 ] enkephalin ( dago ) and the selective delta agonist tyr-d-thr-gly-phe-leu-thr ( dtlet ) ( 3 nmol ) increased intake of a 0.15 % saccharin solution by approximately 10 ml over 3 hr .
C0014298
enkephalin
C0525773
dago