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相关概念视频

The Menstrual Cycle01:19

The Menstrual Cycle

849
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...
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Menses Phase01:18

Menses Phase

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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...
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相关实验视频

Updated: Jul 11, 2025

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
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轮班工作和月经:一个元分析研究.

Fengying Hu1, Cuiyun Wu2, Yunfei Jia1

  • 1Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, 230032, China.

SSM - population health
|November 13, 2023
PubMed
概括

轮班工作增加了女性月经不规则,疼痛期 (经期失调) 和早期更年期的风险. 这项研究强调了非传统工作时间表对女性生殖健康的影响.

关键词:
经期不良症 经期不良症 经期不良症没有规律的月经周期.更年期 绝经 绝经经期 月经 月经.轮班工作 轮班工作

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Ex Vivo Method for Assessing the Mouse Reproductive Tract Spontaneous Motility and a MATLAB-based Uterus Motion Tracking Algorithm for Data Analysis
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科学领域:

  • 生殖健康 生殖健康
  • 职业健康 职业健康 职业健康
  • 流行病学 流行病学

背景情况:

  • 轮班工作越来越被认为是影响妇女生殖健康的潜在风险因素.
  • 现有证据将轮班工作与月经障碍,生殖障碍和不良妊娠结果联系在一起.
  • 之前缺乏对轮班工作者的月经不规则,缺经症和早期更年期的系统检查.

研究的目的:

  • 调查轮班工作与女性月经关键特征之间的关联.
  • 具体地检查不规则的月经,经管障碍和早期更年期的风险.

主要方法:

  • 进行了全面的元分析,搜索了四个主要数据库 (PubMed,Embase,Cochrane,Web of Science) 到2022年12月.
  • 从21项涉及195,538名女性参与者的研究中提取和分析了数据.
  • 统计方法包括计算几率比率 (ORs),相对风险 (RRs) 和危险比率 (HRs) 的95%置信区间 (CI),以及异质性和偏差评估.

主要成果:

  • 分析显示,轮班工作与不规则的月经 (OR=1.30) 和失经 (OR=1.35) 之间存在显著的积极关联.
  • 轮班工作也与早期更年期的风险增加有关 (HR=1.09),没有显著的异质性.
  • 包含的21项研究具有很高的方法质量.

结论:

  • 轮班工作者表现出明显更高的经历月经障碍,经期障碍和早期更年期的几率.
  • 这些发现强调了解决职业时间表的重要性,以保护女性生殖健康.
  • 对优化女性员工的工作时间和轮班安排存在影响.