The correlation research of the levels of CA-125 antigen and vascular endothelial growth factor in serum and peritoneal fluid in patients with endometriosis

Objective To explore the changes of the levels of CA-125 antigen(CA125) and vascular endothelial growth factor (VEGF) in serum and peritoneal fluid in patients with endometriosis (EMT), and the relationship with EMT. Methods One hundred and twenty patients with EMT (EMT group)and 98 patients with uterine fibroids (control group) were enrolled in this study. The levels of CA125 and VEGF in serum and peritoneal fluid were detected by enzyme linked immunosorbent assay (ELISA), and the results were compared. Results The levels of serum CA125,VEGF in EMT group were significantly higher than those in control group: (40.31±11.14) kU/L vs.(24.71±9.19) kU/L,(59.75±6.87) ng/L vs. (36.38±8.12) ng/L, there were significant differences(P 0.05). The levels of peritoneal fluid CA125,VEGF in EMT group were significantly higher than those in control group: (311.46±107.29) kU/L vs.(158.17±55.42) kU/L,(73.28±10.40) ng/L vs. (40.21±9.84) ng/L, there were significant differences (P<0.05). The levels of peritoneal fluid CA125,VEGF in Ⅲ-Ⅳ phase were significantly higher than those inⅠ-Ⅱ phase in EMT group: (387.41±70.91) kU/L vs. (308.42±81.21) kU/L, (69.22±7.13) ng/L vs. (55.44±8.23) ng/L, there were significant differences (P<0.05). In EMT group, the levels of CA125 and VEGF in serum were significantly lower those in peritoneal fluid: (40.31±11.14) kU/L vs. (311.46±107.29) kU/L, (59.75±6.87) ng/L vs. (73.28±10.40) ng/L, there were significant differences (P<0.05). Conclusions The levels of CA125 and VEGF in serum and peritoneal fluid are closely related to EMT. Peritoneal fluid in monitoring of EMT may be more sensitive and reliable than serum. Key words: Endometriosis; CA-125 antigen; Vascular endothelial growth factor