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Related Concept Videos

Oogenesis02:07

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In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
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Oogenesis,  the process of developing egg cells (female gametes), occurs within the ovaries and is fundamental to female fertility. This sequence begins during fetal development when diploid oogonia in the developing ovaries undergo mitotic divisions to produce primary oocytes. By birth, these primary oocytes enter prophase I of meiosis but become arrested in this stage, remaining suspended until puberty.
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Ovarian reserve testing: assessing oocyte quantity and quality.

David Frankfurter1, Seth Barishansky2, David B Seifer2

  • 1Department of Obstetrics, Gynecology & Reproductive Sciences: Yale School of Medicine, Yale University, New Haven, United States. david.frankfurter@yale.edu.

Journal of Assisted Reproduction and Genetics
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PubMed
Summary

Maternal age is the main predictor of oocyte quality, but ovarian reserve tests (ORTs) like anti-Müllerian hormone (AMH) may also indicate egg quality and quantity, impacting reproductive success.

Keywords:
Anti mullerian hormoneDiminished ovarian reserveFollicle stimulating hormoneOvarian reserveOvarian reserve testingPre-implantation genetic testing

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Area of Science:

  • Reproductive biology
  • Endocrinology
  • Genetics

Background:

  • Oocyte quality is crucial for reproductive success, yet its measurement lacks consensus.
  • Maternal age is the primary predictor, but ovarian reserve tests (ORTs) are used to assess oocyte quantity and predict IVF response.
  • The relationship between oocyte quantity, quality, and aging requires further investigation.

Purpose of the Study:

  • To review ovarian aging, current ORTs, and evidence linking them to reproductive potential.
  • To explore whether current ORTs, particularly anti-Müllerian hormone (AMH), can reliably predict both oocyte quantity and quality.
  • To clarify the relationship between ovarian reserve markers and oocyte quantity/quality.

Main Methods:

  • Literature review of ovarian aging and contemporary ovarian reserve tests (ORTs).
  • Analysis of evidence regarding the predictive capabilities of ORTs for oocyte quantity and quality.
  • Examination of the link between maternal age, oocyte aneuploidy, and IVF success.

Main Results:

  • Currently used ORTs are reasonable predictors of relative oocyte quantity.
  • Anti-Müllerian hormone (AMH) may also serve as a marker for oocyte quality.
  • Oocyte quantity and quality decline with age, but their inherent link and predictability by ORTs remain under investigation.

Conclusions:

  • ORTs primarily predict oocyte quantity, with AMH showing potential as an indicator of oocyte quality.
  • Further research is needed to fully understand the predictive power of ORTs for oocyte aneuploidy and IVF success.
  • Clarifying the relationship between ovarian reserve markers and reproductive potential is essential for optimizing fertility treatments.