Fig. 4

Microarray results revealed the mRNA expression profile of PDLSCs from different age groups. a Mapping volcanoes of PDLSCs from different age groups showed the overall distribution of differentially expressed genes. b Statistical analysis showed that 10,491 genes are differentially expressed, which include 3480 upregulated genes and 7011 downregulated genes. c Cluster analysis of PDLSCs in different age groups revealed differentially expressed genes. d Bar chart showed the number of differentially expressed genes based on GO term enrichment based on the functional categories of biological process, cellular component, and molecular function. e Scatter plot showed the statistical data of GO enrichment