Fig. 3From: Biological impact of xeno-free chemically defined cryopreservation medium on amniotic epithelial cellsStem cell marker genes expression. Real-time quantitative PCR analyses reveal relative stem cell marker gene (a) and functional enzyme gene (b) expression after cryopreservation (n = 12). Levels of gene expression were plotted against conventional FBS/10 % dimethyl sulfoxide (DMSO) cryopreservation mediumBack to article page