Fig. 1

Comparison of CDH6 immunolocalization in fertile and infertile mid-secretory phase endometrium. a CDH6 immunolocalized to the luminal epithelium (L), glandular epithelium (G) and stromal cells (S). Higher magnification images are outlined. The specificity of CDH6 labeling was confirmed through the inclusion of an isotype control in which the non-immune antibody of the same isotype was substituted for the CDH6 antibody at the same concertation. Sections were counterstained with hematoxylin to indicate the cell nuclei (blue). b Staining intensity of CDH6 was semi-quantitated by scoring staining in tissues blinded to fertility status. Data were presented as mean ± SEM. (n = 4). *P < 0.05, ns: no significant difference