Significantly higher levels of plasma MMP2 (p = 0.008), MMP9 (p = 0.001), and TGF-β1 (p = 0.053) were determined in the CTRL group when compared with the SHAM group (day 0) (Figure 5), supporting the successful induction of endometriosis in rats. This evidence concerns the gene MMP2 and endometriosis.