The validation results showed increased levels of miR-106b-3p, miR-451a, miR-486-5p, IL-6, IL-8, urokinase plasminogen activator (uPA), and tissue inhibitor of metalloproteinases type 1 (TIMP-1) in the peritoneal fluid from patients with endometriosis. This evidence concerns the gene TIMP1 and endometriosis.