unlabelled : to determine the direct effects of insulin-like growth factors ( igfs ) on pituitary secretion of gh , prl , and acth , adult male rat pituitary explant cultures were tested with acute ( 3-4 h ) or chronic ( 24 h ) exposure to a semipurified preparation of igf peptides , free of immunoreactive insulin , containing igf-i and igf-ii in a ratio of approximately 1:4 .
C0037657
igf
C0021666
igf-ii