Research Paper Volume 12, Issue 17 pp 16899—16920
Umbilical cord mesenchymal stem cells protect thymus structure and function in aged C57 mice by downregulating aging-related genes and upregulating autophagy- and anti-oxidative stress-related genes
Figure 1. Comparison of the appearance of C57 mice of different ages. Note: (A) shows 18-month-old C57 mice, and (B) shows 2-month-old C57 mice; (C) is a photograph of the backs of 18-month-old mice; (D) is a photograph of the backs of 2-month-old C57 mice.