Correlation analyses of marker expression to donor age and gender distribution. The percentage of CD71+, CD146+, and CD274+ cells and the specific antibody mediated fluorescence per cell (ΔGeo Mean) of CD71, CD90, CD106, CD140b, CD146, CD166 and CD274 correlated negatively with the donor age (n = 34 except for CD274 (n = 31)) (A-J). Spearman two-tailed correlation test (*P <0.05; **P <0.01). MSC preparations from female donors harbored significantly more CD119+ cells (n = 11) and CD130+ cells (n = 16) compared to MSC preparations from male donors (CD119+ cells: n = 17; CD130+ cells: n = 19) (K, L). Two-tailed Student’s t-test (*P <0.05; **P <0.01). Error bars: SD.