the tissue content of up to eight neuropeptides , viz bombesin ( bom ) , cholecystokinin ( cck-8 ) , neurotensin ( nt ) , neuropeptide y ( npy ) , peptide histidine isoleucine amide ( phi ) , somatostatin ( srif ) , substance p ( sp ) and vasoactive intestinal polypeptide ( vip ) , in rat hypothalami removed at various times of the day , was measured using specific radioimmunoassays .
C0027895
neuropeptides
C0027893
neuropeptide y