in contrast with regenerating liver , changes in ornithine decarboxylase activity and putrescine concentrations in reversible ischemia are not associated to changes in s-adenosylmethionine decarboxylase activity and in spermine and spermidine concentrations that seem to be characteristic of tissues where increases in rna synthesis are followed by dna synthesis and cell multiplication .
C0034170
putrescine
C0037871
concentrations