the intracisternal injection of either all-trans-retinoic acid or [ alpha ] -difluoromethylornithine ( dfmo ) into the brain of 9-day-old mice blocked ( greater than 90 % ) phorbol ester-induced ornithine decarboxylase ( odc , ec 4.1.1.17 ) activity in a concentration-dependent fashion ;
C0002260
alpha
C0029282
ornithine decarboxylase