three enzymes concerned in purine degradation , 5'nucleotidase ( 5'nt ) , adenosine deaminase ( ada ) and purine nucleoside phosphorylase ( pnp ) have been measured biochemically in the bone marrow or peripheral blood blasts from 75 patients with acute leukaemia , from 18 patients with blast crisis of chronic granulocytic leukaemia and in the bone marrow and peripheral blood lymphocytes from 14 normal donors .
C0085669
acute leukaemia
C0005953
bone marrow