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相关概念视频

Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

344
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...
344
Ovarian Cycle01:27

Ovarian Cycle

793
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...
793
Oogenesis02:07

Oogenesis

63.2K
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...
63.2K
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

213
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
213
Proliferative Phase01:20

Proliferative Phase

269
The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
269
Folliculogenesis01:20

Folliculogenesis

432
Folliculogenesis is the development of ovarian follicles, the specialized structures within the ovarian cortex where oogenesis, or egg development, occurs. This process is essential for female reproductive health and begins during fetal development when primordial follicles are formed. Each primordial follicle comprises a primary oocyte in the center, surrounded by a single layer of squamous pre-granulosa cells. These follicles remain dormant in late prophase I of meiosis until triggered by...
432

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相关实验视频

Updated: May 16, 2025

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

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更新卵巢刺激 更新卵巢刺激

Baris Ata1

  • 1Department of Obstetrics and Gynecology, Koç University School of Medicine, Istanbul, Turkey.; ART Fertility Clinics, Dubai, United Arab Emirates..

Reproductive biomedicine online
|April 26, 2025
PubMed
概括
此摘要是机器生成的。

结所有周期彻底改变了卵巢刺激,提供灵活的协议,独立于传统的2-3天开始. 这种方法提高了患者的护理,并最大限度地提高了用于生育治疗的卵细胞产量.

关键词:
激进分子触发器触发器在这个过程中,IVF IVF.卵细胞是卵细胞中的一个.卵巢刺激 卵巢刺激孕激素是前性激素的一种.随机启动开始随机开始

更多相关视频

Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

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Author Spotlight: Advancing Fertility Assessment with Z-Score-Based Follicle Density Evaluation in Cryopreserved Ovarian Tissue
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Author Spotlight: Advancing Fertility Assessment with Z-Score-Based Follicle Density Evaluation in Cryopreserved Ovarian Tissue

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相关实验视频

Last Updated: May 16, 2025

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

5.8K
Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

4.5K
Author Spotlight: Advancing Fertility Assessment with Z-Score-Based Follicle Density Evaluation in Cryopreserved Ovarian Tissue
05:42

Author Spotlight: Advancing Fertility Assessment with Z-Score-Based Follicle Density Evaluation in Cryopreserved Ovarian Tissue

Published on: October 25, 2024

985

科学领域:

  • 生殖内分泌学 生殖内分泌学
  • 辅助生殖技术 辅助生殖技术

背景情况:

  • 传统的卵巢刺激方案被优化为新鲜的胚胎移植,通常从月经周期的2-3日开始.
  • 这些协议利用性腺激素释放激素的类似物来防止过早排卵,这是由于对卵巢过度刺激综合征的担忧,以及通过新鲜移植降低活产率.

研究的目的:

  • 在玻璃化时代探索和重新定义卵巢刺激协议,特别是在所有结周期中.
  • 评估经过修改的刺激策略对卵细胞产量和质量的影响,独立于新鲜转移考虑.

主要方法:

  • 研究的柔性卵巢刺激开始时间,包括早期/晚期的卵泡或质阶段.
  • 评估了各种垂体抑制方法,如口服孕激素或没有外部抑制.
  • 评估了激素激动剂在没有立即新转移的情况下使用的安全性和有效性,以减轻卵巢过度刺激综合征的风险.

主要成果:

  • 卵细胞数量和质量看起来独立于传统的2-3天开始,在其他卵泡或白细胞阶段具有潜在的优势.
  • 灵活的垂体抑制方案不会影响卵细胞产量或质量.
  • 在结周期中使用激素触发剂有效地抑制了卵巢过度刺激综合征的风险,允许最大限度的刺激.

结论:

  • 玻璃化技术可以为结周期提供优化的卵巢刺激协议,与传统方法有很大差异.
  • 刺激可以根据个体患者的需要和医生的偏好进行量身定制,在一个周期内有可能进行多次刺激.
  • 现代卵巢刺激更具适应性,以患者为中心,对医生友好,改善了整体的生育治疗体验.