Fig. 3

a Cytoplasmic staining of SLC2A1 protein in human endometrial stromal cells before and after decidualization with and without insulin. Top picture: human endometrial stromal cells, 100 x magnification. Center picture: decidualizing human endometrial stromal cells, 100 x magnification. Bottom picture: human endometrial stromal cells decidualized in the presence of 500 nM insulin, 100 x magnification. b Relative levels of SLC2A1 protein expression in response to insulin treatment. The values are presented as box plots showing minimum, first quartile, median, third quartile and maximum. Paired t-test was used for statistical analysis. p < 0.05 was considered significant. * = p < 0.05