Investigation of VEGF gene polymorphism rs35569394 in endometriosis

ABSTRACT Introduction: Endometriosis is a chronic gynecological condition characterized by the presence of endometrial tissue in locations outside the uterus. Its symptoms include dysmenorrhea, dyspareunia, chronic pelvic pain, infertility, dysuria, and dyschezia. Several studies have related the vascular endothelial growth factor (VEGF) gene polymorphisms as a factor for the development of endometriosis. Objectives: The aim of this study was to compare the frequency of the VEGF gene polymorphism rs35569394 in women with endometriosis and a control group, as well as to investigate the association of this polymorphism with the risk of endometriosis. Methods: This case-control study included 45 endometriosis patients (cases) and 78 controls. The molecular analysis was performed by polymerase chain reaction (PCR). The chi-square test was used to compare the genotype and allele frequencies, and the Hardy-Weinberg equilibrium was also tested using the chi-square test, considering the significance of p