the evoked population spike response in the ca1 region following activation of the schaffer collateral and commissural afferents was increased following perfusion with the delta-selective agonist [ d-pen2 , d-pen5 ] enkephalin ( dpdpe ) , and with the mu-selective agonist [ d-ala2 , nme-phe4 , gly ( o ) 5ol ] enkephalin ( dago ) .
C0525856
dpdpe
C0014298
enkephalin