The activity of dihydropyrimidine dehydrogenase ( DPD ) , the initial enzyme of pyrimidine ( and FUra ) catabolism , in peripheral blood mononuclear cells was measured in each subject by a specific radiometric assay using FUra as the substrate .
the activity of dihydropyrimidine dehydrogenase ( dpd ) , the initial enzyme of pyrimidine ( and fura ) catabolism , in peripheral blood mononuclear cells was measured in each subject by a specific radiometric assay using fura as the substrate .
O O O B-protein_family_or_group I-protein_family_or_group O B-protein_molecule O O O O B-protein_family_or_group O B-nucleotide O O B-nucleotide O O O O B-cell_type I-cell_type I-cell_type I-cell_type O O O O O O O B-other_name I-other_name I-other_name O B-nucleotide O O O O