immunoreactive gh release-inhibiting factor [ somatostatin ( srif ) ] was detected in hypothalamus , extrahypothalamic brain , pancreas , and stomach extracts of the rat , pigeon , tortoise , frog , teleost ( cichlid ) , and elasmobranch ( dogfish ) and in the whole brain of the cyclostome ( hagfish ) .
C0037659
srif
C0020663
hypothalamus