HOXA10 and endometriosis: The HOXA10 gene is hypermethylated in the endometrium of women with endometriosis and animal models of this disease, as well as in other endometrial diseases such as uterine polyps, intramural myoma, and submucosal myoma in which the DNA methylation status is negatively correlated with gene expression levels [71,72,73,74,75,76,77].