Also, menstrual blood serum was characterized as a less invasive source of infertility biomarkers, where EMILIN1, TRIP6, LAMB1, LAMC1, NID1, APOB, APOA4 were detected as the main differences in uIF patients as compared to healthy controls (Brennan et al., 2025). This evidence concerns the gene EMILIN1 and Infertility.