Table 9. Comparison of the Sirt1 expression levels among the treatment group, the model control group and the young control group after mUCMSC treatment (n=9).

Sirt1 expression level	Therapy group			Model control group a			Youth control group bc
Number	1	2	3	1	2	3	1	2	3
Histochemical score (H-SCORE)	57.7	7.34	8.92	47.8	5.91	3.11	1.64	2.42	2.23

Note: a is p>0.05 compared with the young control group; b is p>0.05 compared with the young control group; c is p>0.05 compared with the treatment group.