ANÁLISE DO POLIMORFISMO DO GENE RECEPTOR DE PROGESTERONA (PROGINS) EM MULHERES COM ENDOMETRIOSE

Abstract

Endometriosis is defined by the appearance of foci of endometrial tissue with glandular features and / or stromal identical to the uterine cavity at locations other than the endometrium, showing a strong genetic component. It focuses primarily on women of reproductive age and may be related to infertility in 30% to 40% of the cases. It's a histological diagnosis of pathology, which must be confirmed the clinical suspicion and the macroscopic findings found in surgery. It can affect several organs, and because of it is called multi-systemic. The exaggerated expression of estrogen receptors and progesterone receptor defects are consequences of the abnormality of the progestational effect on the endometrium and ectopic topic. Changes in its function may thus facilitate the emergence of the disease because, in the broad sense, fails to antagonize the proliferative effects of estrogens. Recently, several polymorphisms of the progesterone receptor have been described. Among them stands out PROGINS polymorphism Alu consisting of a insertion 306 bp in the intron G between the exon 7 and 8 of progesterone receptor gene in humans. This study aims to determine the possible correlation between endometriosis and polymorphisms of the Progesterone Receptor Gene (PROGINS). The endometriosis group consisted of 54 patients from a referral center for infertility laparoscopy-video and infertility of Goiania (FÉRTILE). The control group included 45 women without history of endometriosis by anaminesis. Genotypes for PROGINS polymorphism (A1/A1, A1/A2 and A2/A2) were determined by PCR. The frequency of polymorphic genotypes (A1/A2 and A2/A2) is two times higher in patients with endometriosis (33,3%) than in the control group (15,5%). Statistical significance was found indicating an association between the polymorphism PROGINS and pathology endometriosis (P = 0,0426).