to measure directly the accumulation of dna damage with age , and to understand better the effect of modulators of dna damage in vivo , the dna of brain , liver , and kidney of two mice from different families , mus musculus and peromyscus leucopus , have been examined for age-dependent accumulation of single-strand breaks plus alkali-labile bonds , by the alkaline sucrose sedimentation method .
C0162340
understand
C0006104
brain