Figure 3:

AMSCs retained their proliferative capacity and metabolic function between days 1 and 4 post-injection, with no significant differences between injection groups. (A) DAPI assisted cell counts (values represent cells × 10⁶) were similar among the three groups on days 1 and 4, and all groups demonstrated an exponential increase cell counts between days 1 and 4, reflecting maintenance of normal proliferative capacity. (B) MTS assay for mitochondrial activity revealed similar mitochondrial activity among the three treatment groups on days 1 and 4, as well a commensurate increase in mitochondrial activity between days 1 and 4. This latter finding reflects cell proliferation and corroborates the DAPI stain findings in (A).