Allelic estrogen receptor 1 (ESR1) gene variants predict the outcome of ovarian stimulation in in vitro fertilization.
نویسندگان
چکیده
The outcome of in vitro fertilization (IVF) depends substantially on the effectiveness of controlled ovarian hyperstimulation (COH) induced by administration of follicle-stimulating hormone (FSH). In COH, endogenously produced estrogens extend the action of FSH in stimulating folliculogenesis. We determined the associations between genetic variations in estrogen receptor ESR1 and ESR2 genes and etiology of female infertility, and analysed the influence of these variations on COH outcome-the quantity and quality of oocytes retrieved. ESR1 PvuII T/C (rs2234693) and XbaI A/G (rs9340799) single-nucleotide polymorphisms (SNPs) and (TA)n microsatellite polymorphism, as well as ESR2 RsaI G/A (rs1256049) SNP and (CA)n microsatellite polymorphism were genotyped in 159 IVF patients. The ovarian response to FSH was diminished in patients with endometriosis when compared to tubal factor infertility. ESR1 PvuII and XbaI as well as ESR2 RsaI SNPs were associated with the microsatellite length of the respective genes. Shorter ESR1 (TA)n was linked with a higher risk for unexplained infertility, whereas longer ESR1 (TA)n associated with PvuII*C allele were predictive of a better COH, but not clinical pregnancy outcome in an age-independent manner. These data suggest the variations in ESR1 gene, in addition to the age of a woman, may predict the COH outcome in IVF.
منابع مشابه
Association of estrogen receptor 1 rs9340799 polymorphism with implantation failure in Iranian infertile women
Purpose: Estrogen as a crucial hormone during pregnancy acts by two types of receptors. Estrogen receptor alpha, expressed by estrogen receptor 1 (ESR1) gene, is more abundant and exists in all human reproductive systems. Association of ESR1 gene polymorphism has been shown in some reproductive fields such as spontaneous abortion, endometriosis-related infertility and in vitro fertili...
متن کاملP-238: Lack of Association of Estrogen Receptor Polymorphisms with Male Infertility
Background: Estrogen is recognized as one of the significant regulator of spermatogenesis. Estrogens are synthesized in the male reproductive system (sertoli and leydig cells). Estrogen function is mediated by estrogen receptors (ER-α or ER-β). Some studies have suggested an association between single nucleotide polymorphisms (SNPs) rs2234693 (ESR1 pvuII C>T), rs1801132 (ESR1 325 C->G) of ERα g...
متن کاملI-36: The Necessity of Genetic Screening in Premature Ovarian Failure and Diminished Ovarian Reserved Patients
Variability in the subfertile patient population excludes the possibility of a single approach to controlled ovarian stimulation (COS) covering all the requirements of a patient. Modern medical science has made great advances in the understanding and the development of new drugs, treatment options and quantitative methods that can identify single patient characteristics. Factors that reduce fol...
متن کاملMinimal Stimulation In Vitro Fertilization: A Better Outcome
advantages of mild-stimulation have long been appreciated, while there was a called for more patient-friendly approach in ovarian stimulation around 20 years ago (1)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Molecular human reproduction
دوره 13 8 شماره
صفحات -
تاریخ انتشار 2007