672013.fig.006
Figure 6: Insulin secretion of the infected cells which were transferred into PDX-1, NeuroD1, MafA, or GFP at different differentiation stages in vitro. The cells were incubated in KRB containing the indicated concentration of glucose. The buffer was then collected for assay of insulin release in each experimental group. One asterisk, * . Data are presented as mean ± SD.