following chronic administration ( 10 or 20 days ) of diazepam ( 5 mg/kg/day , subcutaneous pellets ) or ro 15-1788 ( 5 mg/kg/day , intraperitoneally ) , adenosine and benzodiazepine receptors in different rat brain areas were assessed by radioligand binding studies using [ 3h ] r-pia for a1 receptors , [ 3h ] neca and [ 3h ] r-pia for a2 receptors and [ 3h ] fnz for benzodiazepine receptors .
C0001443
adenosine
C0050789
neca