Research Paper Volume 12, Issue 14 pp 13979—13990

Senescence-like phenotype in post-mitotic cells of mice entering middle age

Figure 1. pH-dependent (pH 4 to pH 7) β-gal activity in frozen sections of 9 months old C57/Bl6J mice hippocampus. Nuclear Fast Red was used for counterstaining. At pH 6, specific for SA-β-gal, no marked β-gal activity is evident. Representative images from 3 different mice are shown.