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関連する概念動画

Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

1.7K
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...
1.7K
The Menstrual Cycle01:19

The Menstrual Cycle

4.4K
The menstrual cycle is a recurrent sequence of changes in the uterine endometrium, specifically its functional layer, the stratum functionalis. This cycle prepares the uterus for potential pregnancy. This cycle typically spans 21–35 days, averaging 28 days, and aligns with the ovarian cycle, regulated by fluctuating levels of ovarian hormones, primarily estrogen and progesterone.
The menstrual phase occurs from days 1 to 5 and involves the shedding of the stratum functionalis, as a...
4.4K
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

7.1K
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...
7.1K
Ovarian Cycle01:27

Ovarian Cycle

4.4K
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...
4.4K
Menses Phase01:18

Menses Phase

1.2K
The uterine cycle begins with the menstrual phase, which is considered day one of the cycle and typically lasts about five days. This phase is characterized by the degeneration and shedding of the stratum functionalis, the functional layer of the endometrium.
When fertilization does not occur, the corpus luteum deteriorates, causing a significant drop in the levels of estrogen and progesterone in the body. This hormonal decrease triggers the release of prostaglandins, which cause the uterine...
1.2K
Secretory Phase01:19

Secretory Phase

2.3K
The secretory phase of the menstrual cycle, spanning from day 14 to 28 in a typical 28-day cycle, is a period of significant physiological changes in the female reproductive system. This phase commences immediately after ovulation and is characterized by the preparation of the endometrium for potential embryo implantation.
Following ovulation, the corpus luteum, a temporary endocrine structure, produces progesterone and estrogens. These hormones stimulate the growth and coiling of endometrial...
2.3K

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関連する実験動画

Updated: Feb 19, 2026

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
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Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle

Published on: August 30, 2021

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月経周期のエストラディオール変動は,感情的および社会情緒的機能の変化を予測します.

Bethany Sander1, Duncan Preston1, Jennifer L Gordon1

  • 1Department of Psychology, University of Regina, Regina, Saskatchewan S4S 2Z3, Canada.

Psychoneuroendocrinology
|February 17, 2026
PubMed
まとめ

エストラディオール (E2) は女性の気分とストレス反応に影響します. より高いE2レベルは,よりよい気分と自尊心と相関し,より低いレベルは,怒りの知覚とストレス反応性を高める可能性があります.

キーワード:
アフェクト・アフェクト・アフェクト感情の認識 感情の認識エストラジオール エストラジオール月経周期についてです.心理的社会的なストレス拒絶感度 拒絶感度 拒絶感度

さらに関連する動画

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats
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Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

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Performing Vaginal Lavage, Crystal Violet Staining, and Vaginal Cytological Evaluation for Mouse Estrous Cycle Staging Identification
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Performing Vaginal Lavage, Crystal Violet Staining, and Vaginal Cytological Evaluation for Mouse Estrous Cycle Staging Identification

Published on: September 15, 2012

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関連する実験動画

Last Updated: Feb 19, 2026

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
09:05

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle

Published on: August 30, 2021

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Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats
09:07

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

Published on: February 23, 2015

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Performing Vaginal Lavage, Crystal Violet Staining, and Vaginal Cytological Evaluation for Mouse Estrous Cycle Staging Identification
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Performing Vaginal Lavage, Crystal Violet Staining, and Vaginal Cytological Evaluation for Mouse Estrous Cycle Staging Identification

Published on: September 15, 2012

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科学分野:

  • 神経内分泌学の神経内分泌学
  • 生殖心理学 生殖心理学
  • 感情神経科学とは

背景:

  • エストラディオール (E2) は,女性の気分と社会情緒的機能に関与しています.
  • 以前の研究は,横断的な設計によって制限され,E2特異的な効果の結論を妨げています.

研究 の 目的:

  • エストラディオール (E2) が心理的,生理的反応に与える長期的影響を調査する.
  • 低E2 (早期の卵泡) と高E2 (後半の卵泡) の相におけるアウトカムを比較する.

主な方法:

  • 自然に自転車に乗っている女性23人を対象とした長期的研究.
  • 評価された影響,自尊心,刺激性,感情の認識,社会的排斥とストレスに対する反応.
  • 初期卵泡 (低E2) と後期卵泡 (高E2) の段階で収集したデータ.

主要な成果:

  • ネガティブな影響と刺激性は,低E2段階ではより高かった.
  • ポジティブな感情と自尊心が高いE2段階では高かった.
  • 社会的排斥後の化は,低E2段階で増加した;探査分析は,ストレスに関連するコルチゾールと心拍数応答の変化を示した.

結論:

  • フォリキュラー後期,高E2段階は,全般的な感情状態の改善と関連しています.
  • 低値または低下するE2は,怒りの知覚,反省,および生理学的ストレス反応を高める可能性があります.