in addition to the individual marker measurements , the pretreatment and posttreatment values of the ratios of the polyamine levels ( spermine/putrescine , spermine/spermidine , and spermidine/putrescine ) and the nucleoside levels ( n2 , n2-dimethylguanosine/pseudouridine , 1-methylinosine/pseudouridine , and 1-methylinosine/n2 , n2-dimethylguanosine ) were also evaluated .
C0037874
spermine
C0037871
putrescine