Endometrial stromal progesterone receptor-A/progesterone receptor-B ratio: no difference between women with and without endometriosis

The aim of the present study was to investigate whether alterations of the P receptor–A/P receptor–B ratio could be considered an etiopathogenetic factor for endometriosis.We failed to observe statistically significant differences in both P receptor–A/P receptor–B messenger RNA and protein ratio between endometrial stromal cells derived from women with and without endometriosis