双甲 (BPA) 是否参与了多囊性卵巢综合征 (PCOS) 的病原发生?
Lorena Ana Mercedes Lara Urbanetz1, José Maria Soares Junior1, Gustavo Arantes Rosa Maciel1
1Gynecology Division, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil.
Clinics (Sao Paulo, Brazil)
|November 26, 2023
概括
双甲 (BPA) 暴露可能通过破坏内分泌功能,导致多囊性卵巢综合征 (PCOS) 的发展. 即使是低水平的BPA暴露,特别是在脆弱的发育阶段,也会对生殖和代谢产生持久的影响.
科学领域:
- 内分泌学 在内分泌学.
- 环境健康 环境健康
- 生殖生物学 生殖生物学
背景情况:
- 多囊性卵巢综合征 (PCOS) 是一种复杂的内分泌疾病,病因不明.
- 环境因素被怀疑是PCOS的贡献者,双A (BPA) 是一个潜在的候选者.
- 暴露BPA可以通过饮食,皮肤吸收和吸入发生,并可以通过母乳通过胎盘和婴儿传播.
研究的目的:
- 调查双A (BPA) 在多囊性卵巢综合征 (PCOS) 的病因学中的潜在作用.
- 探索BPA可能影响PCOS相关的代谢和生殖功能的机制.
- 检查BPA暴露的影响,包括低水平和发育性暴露,对PCOS的病原性.
主要方法:
- 审查BPA的化学结构及其通过基因组和非基因组信号通路与雌激素受体 (ERs) 的相互作用.
- 分析BPA的生物积累特性及其改变代谢和生殖功能的潜力.
- 考虑表观遗传修饰和暴露在关键发育时期 (胎儿,新生儿,青春期前期) 的影响.
主要成果:
- BPA与ER的相互作用可以导致高雄性,胰岛素抵抗,肥胖,失脂症,炎症和无排卵,所有这些都是PCOS的特征.
- 长期暴露于BPA可能会导致生物积累,并破坏正常的代谢和生殖过程.
- 由BPA引起的表观遗传修饰可以将有害影响传递给后代,即使没有持续暴露.
结论:
- 乙是一种合理的环境因素,有助于PCOS病原体.
- 高水平和低水平的BPA暴露,尤其是在敏感的发育窗口期间,都会对PCOS发展造成风险.
- 进一步的研究对于充分阐明BPA在PCOS中的作用及其长期健康后果至关重要.
相关概念视频
Oogenesis
63.7K
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...
63.7K
Hormonal Control of the Ovarian Cycle
527
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...
527
Disorders of the Female Reproductive System
368
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...
368
Ovarian Cycle
1.3K
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...
1.3K
Hormonal Regulation of the Menstrual Cycle
403
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...
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...
403
Chronic Pancreatitis I: Introduction
90
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
90


