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Related Concept Videos

Oogenesis02:07

Oogenesis

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...
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

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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Related Experiment Video

Updated: Jul 2, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

[Premature ovarian failure: which protocols?].

P Merviel1, E Lourdel, V Boulard

  • 1Service de gynécologie obstétrique et médecine de la reproduction, centre d'Assistance médicale à la procréation (AMP), CHU d'Amiens, 124, rue Camille-Desmoulins, 80054 Amiens cedex 1, France. Merviel.Philippe@chu-amiens.fr

Gynecologie, Obstetrique & Fertilite
|August 16, 2008
PubMed
Summary
This summary is machine-generated.

This review examines various protocols for premature ovarian failure (POF) to optimize oocyte retrieval and pregnancy rates. Success depends on ovarian reserve, age, infertility type, cycle number, and uterine factors.

More Related Videos

Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

Related Experiment Videos

Last Updated: Jul 2, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

Area of Science:

  • Reproductive endocrinology and infertility treatments.

Context:

  • Premature ovarian failure (POF) presents unique challenges in assisted reproductive technologies.
  • Optimizing treatment protocols is crucial for improving pregnancy outcomes in women with POF.

Purpose:

  • To review and analyze diverse treatment protocols for women with premature ovarian failure.
  • To evaluate the efficacy of various stimulation protocols and adjuvant therapies.

Summary:

  • The review analyzes natural/semi-natural cycles, gonadotrophin adjustments, clomiphene citrate, anti-aromatases, GnRH agonists (long, short, stop, microdoses), and GnRH antagonists.
  • Adjuvant treatments including aspirin, nitric oxide, recombinant LH, growth hormone, and androgens are also discussed.
  • Achieving sufficient oocytes for reasonable pregnancy rates is a key objective, though outcomes are multifactorial.

Impact:

  • Highlights the complex interplay of factors influencing pregnancy rates in POF patients.
  • Provides insights into selecting appropriate protocols to maximize fertility potential in women with diminished ovarian reserve.