Figure 1.

A: Hypoxyprobe staining. Representative murine endometriotic tissue removed at different time points after transplantation. D: 1 hour. E: 4 hours. F: 24 hours. G: 48 hours. H: 1 week. I: 6 months. Each mouse was injected with pimonidazole hydrochloride (hypoxyprobe-1) 30 minutes before removal. Eutopic uterine lesions from the same mice were used as negative controls (A–C). Staining with hypoxyprobe antibody and counterstaining with hematoxylin. Control endometriotic tissue (4 hours; J) stained with an isotype-matched irrelevant murine IgG1 monoclonal antibody directed against Shigela toxin.