we have reported that spermidine n1-acetyltransferase has a larger role than ornithine decarboxylase in putrescine synthesis in chick duodenum induced by 1 alpha,25-dihydroxycholecalciferol ( calcitriol ) [ shinki , t. , kadofuku , t. , sato , t. and suda , t. ( 1986 ) j. biol . chem . 261 , 11712-11716 ] .
C0012328
dihydroxycholecalciferol
C0006674
calcitriol