Effects of different concentrations of nicotinamide on hematopoietic stem cells cultured in vitro

Figure 2 Expansion efficiency of subsets of hematopoietic stem cells in different concentrations of nicotinamide. A: Microscopic observation of cultured cells in each group (Bar = 200 μm); B: Fold expansion of total nucleated cells; C: Fold expansion of hematopoietic stem and progenitor cells; D: Fold expansion of short-term repopulating hematopoietic stem cells; E: Fold expansion of long-term repopulating hematopoietic stem cells. ^aP < 0.05; ^cP < 0.001; NS: Not significant. NAM: Nicotinamide; TNC: Total nucleated cells.