We found TGFBI mRNA expression in EuE from both women with endometriosis and controls to be menstrual cycle phase-dependent, with a higher expression level in the proliferative phase compared to the secretory phase (FC = 4.5, P < 0.0001 and FC = 4.5, P < 0.001, respectively, Figure 4B). The gene discussed is TGFBI; the disease is endometriosis.