Vitamin D receptor gene polymorphism in women with genital endometriosis, type 1 diabetes mellitus, and in the population

Abstract

AIM: The aim of this study was to analyze the association between the vitamin D receptor gene polymorphism and the risk of developing genital endometriosis and type 1 diabetes mellitus.
 MATERIALS AND METHODS: The frequency of allelic variants of the VDR gene was studied by PCR-RFLP analysis in 282 women, including 129 patients with genital endometriosis (stages IIV), 71 patients with type 1 diabetes mellitus, and 82 women of the control group represented by the population sample.
 RESULTS: It was found that the frequency of the allele G polymorphic variant of rs1544410 (BsmI) in the VDR gene was significantly higher in the group of patients with genital endometriosis compared to the population sample (p = 0.048). Significant differences for the G / G genotype in patients with genital endometriosis relative to the control group (p 0.05) and the group of patients with type 1 diabetes mellitus (p 0.05) were revealed. According to the odds ratio, the risk of developing genital endometriosis was 1.9 times higher for this genotype (OR = 1.93 CI = 1.0823.450; OR = 1.892 CI = 1.0223.430). The combination of the A / A and G / A genotypes was significantly more common in patients with type 1 diabetes mellitus (p = 0.040) and in the population (p = 0.025), when compared to the patients with genital endometriosis. A significant increase in the t allele of the rs731236 polymorphism (TaqI) of the VDR gene was found in the group of patients with type 1 diabetes mellitus (p 0.05). The combination of the T / t and t / t genotypes of the rs731236 polymorphism (TaqI) of the VDR gene in patients with type 1 diabetes mellitus were significantly more common than in the group of patients with genital endometriosis (p = 0.017).
 CONCLUSIONS: The data obtained may be important for risk assessment of genital endometriosis and type 1 diabetes mellitus development and for developing new strategies for the prevention and treatment of these diseases.