BCL2L1 and endometriosis: We determined that BCL-XS/BCL-2 and BCL-XS/BCL-XL ratios were increased in rats with endometriosis compared to Sham rats (Figure 3C, p < 0.05), but there were no significant differences in BAX/BCL-2 or BAX/BCL-XL ratios (Figure 3C).