The overexpression of Sirutin 1 (SIRT1) and Bcl-xL (antiapoptotic marker) in the ectopic and eutopic endometrial tissues of women with endometriosis compared with normal endometrial tissues may suggest their association with the progression of endometriosis, as studied by Rezk et al., (2021) [106]. Here, BCL2L1 is linked to endometriosis.