Research Article

PPIA, HPRT1, and YWHAZ Genes Are Suitable for Normalization of mRNA Expression in Long-Term Expanded Human Mesenchymal Stem Cells

Figure 4

Analysis of the most stable reference gene by NormFinder. The stability values of 10 selected RGs in long-term expanded BM-MSCs and UCB-MSCs were calculated by NormFinder. The y-axis represents the stability and the lower values indicates the higher stability. The best combinations of two RGs in each group were determined by NormFinder, and are marked with bold letters.