暴露于多种内分泌干扰化学物质和与女性不孕症的关联:一个案例对照研究
Xianping Wei1, Na Zhang2, Qingqing Zhu1
1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environment & health (Washington, D.C.)
|December 26, 2024
概括
常见的内分泌干扰化学物质 (EDC) 是类和酸盐等. 在不育妇女中发现了某些EDC的较高水平,这表明EDC暴露与不育风险之间存在联系.
科学领域:
- 环境健康 环境健康
- 生殖毒理学 生殖毒理学
- 流行病学 流行病学
背景情况:
- 内分泌干扰化学物质 (EDC) 在工业产品和日常生活中普遍存在.
- 以前的研究表明EDCs影响生殖健康,但关于不孕不育的流行病学数据有限.
- 主要的EDC包括 parabens (PBs), triclocarban (TCC), triclosan (TCS), bisphenols (BPs), benzophenones (BzPs) 和酸盐代谢产物 (mPAEs) 在内.
研究的目的:
- 调查常见EDC暴露与生育年龄妇女不孕症之间的关联.
- 测量来自受孕和不孕妇女的血清样本中的EDC水平.
- 确定可能与女性不孕症相关的特定EDC.
主要方法:
- 对302名女性 (生殖年龄) 的血清样本进行了六类EDC的分析.
- 在肥沃和不育组之间比较EDC的几何平均 (GM) 度.
- 使用了统计分析,包括二进制物流回归和随机森林.
主要成果:
- 在所有分析的血清样本中检测到EDC,这表明暴露范围广泛.
- 与生育妇女相比,在不孕妇女中观察到PBs,MBs,(TCS+TCC) 和mPAEs的血清度显著更高 (p <0.05).
- 甲酸代谢物 (mPAE),特别是mBP/miBP和mEHP,被确定为导致不孕症的潜在因素.
结论:
- 在生育年龄的妇女中,广泛的EDC暴露被证实.
- 某些EDC的高水平与女性不孕症有关.
- 甲酸代谢产物需要进一步调查,因为它们是不孕不育的潜在风险因素.
相关概念视频
Oogenesis
63.1K
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...
63.1K
Infertility in Females
182
Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
Endometriosis, a condition characterized by abnormal growth of...
Endometriosis, a condition characterized by abnormal growth of...
182
Infertility in Males
151
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
151
Spermatogenesis
101.7K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
101.7K
What is the Endocrine System?
413.2K
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.
413.2K
Endocrine Signaling
63.8K
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
63.8K


