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Related Concept Videos

Ovarian Cycle01:27

Ovarian Cycle

1.1K
The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
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Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

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The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
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Oogenesis01:22

Oogenesis

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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.
Each primary oocyte is surrounded by a layer of pre-granulosa cells, forming what is...
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Related Experiment Video

Updated: Jun 12, 2025

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
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Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

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Ovarian stimulation 2.0.

Dominique de Ziegler1, Sean Sokteang1

  • 1Department of Obstetrics and Gynecology, Fertility Clinic of Cambodia (FCC), Phnom Penh, Kingdom of Cambodia.

Fertility and Sterility
|September 22, 2024
PubMed
Summary
This summary is machine-generated.

Ovarian stimulation protocols are crucial for assisted reproductive technology success. This review examines the latest ovarian stimulation protocols to compare their effectiveness in improving outcomes.

Keywords:
Ovarian stimulationletrozole in ovarian stimulation for ARToocyte qualityprogramming ART

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Area of Science:

  • Reproductive Endocrinology
  • In Vitro Fertilization

Background:

  • Ovarian stimulation is a cornerstone of assisted reproductive technology (ART).
  • Recent advancements have introduced numerous novel ovarian stimulation protocols.
  • Understanding the comparative efficacy of these protocols is essential for optimizing ART outcomes.

Purpose of the Study:

  • To conduct a comprehensive review of recent ovarian stimulation protocols in assisted reproductive technology.
  • To critically evaluate and compare the relative merits of various novel ovarian stimulation approaches.

Main Methods:

  • Systematic literature review of ovarian stimulation protocols.
  • Comparative analysis of efficacy and safety data from published studies.
  • Evaluation of different stimulation regimens and their impact on ART outcomes.

Main Results:

  • Identification of key differences among emerging ovarian stimulation protocols.
  • Assessment of the effectiveness of each protocol in enhancing ART outcomes.
  • Summary of the advantages and disadvantages of various approaches.

Conclusions:

  • The choice of ovarian stimulation protocol significantly impacts ART success rates.
  • A comparative understanding of new protocols is vital for clinical decision-making.
  • Further research may refine optimal ovarian stimulation strategies for diverse patient populations.