相关实验视频
Updated: Feb 28, 2026

08:20
A Hyperandrogenic Mouse Model to Study Polycystic Ovary Syndrome
Published on: October 2, 2018
12.0K
野火发射的颗粒物会通过烯碳化合物受体激活诱导卵巢高雄性
bioRxiv : the preprint server for biology
|February 27, 2026
概括
野火颗粒物 (WFPM) 通过影响卵巢功能和激素水平来破坏女性生殖. 暴露于WFPM会通过基碳化合物受体 (AhR) 激活引起高雄性,影响生殖健康.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 生殖生物学 生殖生物学
背景情况:
- 在全球范围内,野火正在增加,释放有毒颗粒物 (WFPM).
- 光,特别是纳米级光 (WFPM 0.1),含有像PAHs这样的有毒化合物.
- 暴露于WFPM对女性生殖能力的影响在很大程度上是未知的.
研究的目的:
- 调查WFPM 0.1对女性生殖健康的影响.
- 阐明WFPM 0.1诱导的生殖毒性背后的机制.
主要方法:
- 使用小鼠内暴露模型和3D卵巢卵泡培养.
- 采用了分子,转录基因 (RNA-seq) 和计算方法.
- 实验室合成 (LS-WFPM 0.1) 和现实世界加拿大WFPM 0.1 (C-WFPM 0.1) 的测试.
主要成果:
- WFPM 0.1 破坏了小鼠的雌激素周期,改变了性激素水平 (雌激素,).
- WFPM 0.1激活了酸受体 (AhR) 并改变了卵巢毛囊中的类固醇基因.
- 暴露于WFPM 0.1导致体细胞的炎症和卵细胞的线粒体功能障碍.
- 抑制AhR可以逆转WFPM 0.1诱导的高雄性质.
结论:
- WFPM 0.1 通过破坏卵巢类固醇生成,对女性生殖功能产生不利影响.
- 通过WFPM 0.1激活AhR有助于高雄性和生殖功能障碍.
- 需要进一步的研究来评估因野火烟雾暴露的人类生殖风险.
相关概念视频
Oogenesis
70.6K
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...
70.6K
Hormonal Control of the Ovarian Cycle
7.2K
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...
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...
7.2K
Disorders of the Female Reproductive System
4.6K
The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
4.6K

