exposing rats to 0 , 0.67 , 6.7 and 30 mm nicotinamide in their drinking water for 7 and 28 days also resulted in a statistically significant increase in kidney odc activity , but the rates of dna synthesis were unaffected , as measured by incorporation of [ 3h ] thymidine into dna and % labeled proximal tubule nuclei ;
C0598312
dna synthesis
C0012854
dna