ANGPT1 and endometriosis: Eutopic endometrium of women with endometriosis has been reported to have disturbed angiogenic activity, as indicated by increased endothelial cell proliferation, higher microvessel density, and elevated levels of VEGFA, ANGPT1 and ANGT2 (Ang-1 and –2) mRNA, in comparison with that of healthy women [180,181].