Pronounced changes were found in genes expression for cervical cancer compared to chronic cervicitis: a 7.3 times increase for MKI67 (p-value = 0.002), a 12 times decrease for PGR (p-value = 0.002), a 6.5 times decrease for OSM (p-value = 0.04), a 4 times decrease for PTGS2 (p-value = 0.02), and a 1.6 times decrease for PTEN (p-value = 0.001). The gene discussed is PTEN; the disease is cervical cancer.