Fig. 1

a Relative gene expression levels of SLC2A1 in human endometrial stromal cells and decidualizing human endometrial stromal cells. The results are presented as mean values with 95% confidence interval (CI). Decidualizing endometrial stromal cells were compared to the control group (stromal cells) and differences considered statistically significant if 95% CI did not include the numerical value of the control group, in which case the significance was marked with one asterisk (*) corresponding to the significance level of p < 0.05. b Relative gene expression levels of SLC2A1 in response to increasing concentrations of insulin in decidualizing human endometrial stromal cells. The values are presented as box plots showing minimum, first quartile, median, third quartile and maximum. One-way ANOVA and Dunnett’s multiple comparisons test was used for statistical analysis. ** = p < 0.01