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  • Title: Genetic association study of polymorphisms FOXP3 and FCRL3 in women with endometriosis.
    Author: Barbosa CP, Teles JS, Lerner TG, Peluso C, Mafra FA, Vilarino FL, Christofolini DM, Bianco B.
    Journal: Fertil Steril; 2012 May; 97(5):1124-8. PubMed ID: 22341374.
    Abstract:
    OBJECTIVE: To consider a possible cumulative effect of two genetic polymorphisms (FOXP3 C-2383T/rs3761549 and FCRL3 C-169T/rs7528684) that were previously shown to be associated with endometriosis. DESIGN: Genetic association study. SETTING: Human reproduction outpatient clinic of Faculdade de Medicina do ABC. PATIENT(S): One hundred eighty-eight infertile women with endometriosis and 169 controls. INTERVENTION(S): Detection of polymorphisms FOXP3 (C-2383T/rs3761549) and FCRL3 (C-169T/rs7528684) by TaqMan real-time polymerase chain reaction. The results were analyzed statistically. MAIN OUTCOME MEASURE(S): Genotype distribution, allele frequency, and combination analysis of the FOXP3 and FCRL3 polymorphisms. RESULT(S): Single-marker analysis revealed a significant association of FOXP3 C-2383T and FCRL3 C-169T, independently, with endometriosis-related infertility, regardless of the stage of the disease. Considering the combined genotypes of FCRL3 and FOXP3 polymorphisms, a positive association was found between genotypes FCRL3TT/FOXP3CT, FCRL3CT/FOXP3CT, and FCRL3CC/FOXP3CT and the risk of endometriosis development. Moreover, a progression of the disease risk was observed according to the presence of one or two copies of risk allele FCRL3 C and only one copy of risk allele FOXP3 T (odds ratio [OR] = 2.14, OR = 3.25, and OR = 6.0, respectively, for genotypes FCRL3TT/FOXP3CT, FCRL3CT/FOXP3CT, and FCRL3CC/FOXP3CT). CONCLUSION(S): Our findings support a possible gene-gene interaction leading to a cumulative effect on endometriosis development.
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