Purpose: Our objective was to identify a marker for oocyte aneuploidy in follicular fluid (FF) in women with an increased risk of oocyte aneuploidy after controlled ovarian hyperstimulation.
Materials And Methods: Three groups of oocytes were constituted for polar body screening by FISH (chromosomes 13, 16, 18, 21 and 22): Group 1, advanced maternal age (n = 156); Group 2, implantation failure (i.e. no pregnancy after the transfer of more than 10 embryos; n = 101) and Group 3, implantation failure and advanced maternal age (n = 56). FSH and other proteins were assayed in the corresponding FF samples.
Results: Of the 313 oocytes assessed, 35.78 % were abnormal. We found a significant difference between the follicular FSH levels in normal oocytes and abnormal oocytes (4.85 ± 1.75 IU/L vs. 5.41 ± 2.47 IU/L, respectively; p = 0.021). We found that the greater the number of chromosomal abnormalities per oocyte (between 0 and 3), the higher the follicular FSH level.
Conclusion: High FF FSH levels were associated with oocyte aneuploidy in women having undergone controlled ovarian hyperstimulation.
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http://dx.doi.org/10.1007/s10815-012-9841-8 | DOI Listing |
Sci Rep
January 2025
Centre for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
It has been debated whether endometriosis (EMS) adversely affects oocyte quality, potentially leading to a higher incidence of genetically unbalanced embryos or other egg factors that affect the developmental potential. In this study, we explored the effects of endometriosis on risk of chromosomally aberrant in miscarried products of conception (POC) after assisted reproductive treatment (ART), including fresh and frozen cycles. Miscarried POCs were collected from EMS patients (N = 102) and non-EMS patients (N = 441).
View Article and Find Full Text PDFJ Assist Reprod Genet
January 2025
Department of Obstetrics and Gynecology, Atrium Health Wake Forest Baptist, 1 Medical Center Blvd, Watlington Hall, Winston-Salem, NC, 27157, USA.
Purpose: To evaluate the effect of endometrial scratching on in vitro fertilization (IVF) success rates in women undergoing frozen embryo transfer with preimplantation genetic testing for aneuploidy (PGT-A).
Methods: Biopsy was performed at oocyte retrieval in cases and compared to those who did not undergo scratching (controls). Endpoints included pregnancy loss, total pregnancy, clinical pregnancy rate (CPR), ongoing pregnancy rate/live birth rate (OPR), and the incidence of chronic endometritis (CE).
Nat Struct Mol Biol
January 2025
Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing, China.
Up to an estimated 10% of women experience miscarriage in their lifetimes. Embryonic aneuploidy is a leading cause for miscarriage, infertility and congenital defects. Here we identify variants of ELL3, a gene encoding a transcription elongation factor, in couples who experienced consecutive early miscarriages due to embryonic aneuploidy.
View Article and Find Full Text PDFJ Assist Reprod Genet
January 2025
IVIRMA Global Research Alliance, RMA New Jersey, 140 Allen, Basking Ridge, NJ, 07920, USA.
Purpose: This study aimed to identify demographic and clinical factors associated with low maturation rates and to investigate if the rate of immature oocytes impacts the outcomes of mature sibling oocytes.
Methods: Women undergoing their first IVF-ICSI cycle between 2018 and 2022 at a fertility clinic were included. Cycles were classified into five groups according to the proportion of Metaphase II stage oocytes (MII): Null (0% MII, n = 46), Poor (1-25% MII, n = 44), Low (26-50% MII, n = 453), Acceptable (51-75% MII, n = 1641), and Optimal (76-100% MII, n = 2642).
F S Rep
December 2024
Department of Obstetrics and Gynecology, University of South Florida, Morsani College of Medicine, Tampa, Florida.
Objective: To compare pregnancy outcomes after single blastocyst embryo transfer among patients whose first autologous embryo transfer was either a fresh embryo transfer or a frozen embryo transfer (FET) after a freeze-all, in the absence of preimplantation genetic testing for aneuploidy (PGT-A).
Design: A multicenter retrospective cohort analysis.
Setting: National multicenter fertility practice.
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