内分泌干扰化学物质和女性生殖衰老
Jiaxin Wu1, Siobán D Harlow1, John F Randolph1,2
1Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan.
Seminars in reproductive medicine
|January 29, 2025
概括
重金属和PFAS等某些化学物质会影响女性的生殖老化,影响卵巢储备和更年期的时间. 需要进一步的研究来了解这些内分泌干扰的化学效应,并为公共卫生战略提供信息.
科学领域:
- 环境健康 环境健康
- 生殖内分泌学 生殖内分泌学
- 毒理学 毒理学 毒理学
背景情况:
- 女性的生殖衰老影响健康,受到荷尔蒙变化和更年期开始的影响.
- 内分泌干扰化学物质 (EDC) 是影响生殖衰老的潜在可改变因素.
- 了解EDC的影响对于公共卫生和解决健康差异至关重要.
研究的目的:
- 审查体内,体外和流行病学数据重金属和PFAS在女性生殖老化.
- 综合当前关于EDC对卵巢功能和更年期的影响的知识.
- 为了确定未来干预的研究差距.
主要方法:
- 文献综述合成体内,体外和流行病学研究.
- 专注于内分泌干扰化学物质:重金属和 perfluoroalkyl 和 polyfluoroalkyl 物质 (PFAS).
- 对卵巢形态,卵泡生成,类固醇生成,卵巢储备和更年期年龄的影响分析.
主要成果:
- 重金属在体外和体内改变卵巢形态,卵泡生成和类固醇生成.
- 流行病学研究将重金属与卵巢储备减少和更早更年期联系起来.
- PFAS证据有限且不一致;与更早更年期和雌激素降低相关,但没有卵巢储备.
结论:
- 重金属显著影响女性生殖衰老标志物.
- 需要对EDC影响进行更全面的流行病学研究,包括卵巢储备和更年期.
- 调查结果可以为减少危险暴露和改善妇女健康的干预措施提供信息.
相关概念视频
What is the Endocrine System?
413.6K
The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
413.6K
Menopause
129
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
129
Oogenesis
63.4K
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...
63.4K
Bone Disorders
3.4K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.4K
Aging
36
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
36
Disorders of the Female Reproductive System
317
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...
317


