Quantitative analysis of GFP+ cells by age.

<p>(<b>A</b>) In the young mouse cohort (age<5.5 months), negative controls are shown in red bars (n=5), and +TET are shown in grey bars (n=16). Organs with statistically significant increased numbers of GFP+ cells groups are indicated by ** above the error bars. (<b>B</b>) In the older mouse cohort (age>8 months), negative controls are shown in red bars (n=11) and +TET are shown in black bars (n=31). (<b>C</b>) Comparison of +TET young mice (grey bars) versus +TET old mice (black bars) from A and B. Organs with statistically significant different numbers of GFP+ cells by age are indicated by ** above the error bars. For all panels, H=heart, P=pancreas, Li=liver, K=kidney, S=spleen, Lu=lung, T=thymus.