多omics分析揭示了类固醇激素生物合成作为一个关键的途径,在晚年母亲的年龄威胁堕胎
Xia Liu1, Tianjiao Liu2, Xuemei Zou1
1Department of Gynecology, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400021, China.
Biology of reproduction
|February 27, 2026
概括
先进的孕产妇年龄 (AMA) 与更高的堕胎威胁率 (AMA-TA) 有关. 干扰类固醇激素生物合成是AMA-TA的一个关键分子特征,为新疗法提供了标.
科学领域:
- 生殖生物学和分子遗传学.
- 生物化学和代谢学.
- 基因组学和生物信息学.
背景情况:
- 先进的母亲年龄 (AMA),定义为≥35岁,越来越普遍.
- 与这一趋势相关的是,堕胎威胁率 (AMA-TA) 的上升.
- 在AMA-TA的基础分子机制仍然不太清楚.
研究的目的:
- 为了研究AMA-TA的分子机制.
- 整合代谢学和转录学数据以获得机械学见解.
- 确定AMA-TA的潜在生物标志物和治疗点.
主要方法:
- 人类AMA-TA患者和对照组的血清代谢量.
- 建立和分析一个AMA-TA小鼠模型 (mifepristone诱导).
- 在小鼠中评估胚胎再吸收,胎盘形态和激素水平 (ELISA).
- 在AMA-TA小鼠中进行胎盘转录基因分析 (RNA-seq).
- 多主题数据集成和路径分析.
- 通过RT-qPCR验证关键类固醇代谢基因.
主要成果:
- 人类的代谢学表明了类固醇激素生物合成,脂质和氨基酸代谢的丰富.
- 在AMA-TA小鼠模型中,胚胎吸收增加和胎盘架构异常.
- 在AMA-TA小鼠血清中观察到显著的代谢干扰,特别是在类固醇激素生物合成中.
- 综合分析强调了类固醇激素生物合成作为中央失调的途径.
- 证实了类固醇代谢基因的异常表达,包括Akr1d1和Ugt家族基因.
结论:
- 破坏类固醇激素生物合成是AMA-TA的核心分子特征.
- 综合的多omics分析为AMA-TA提供了关键的机制理解.
- 这项研究支持开发AMA-TA的新生物标志物和治疗策略.
相关概念视频
Gonadal and Placental Hormones
3.5K
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
3.5K
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
Nondisjunction
5.3K
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers. Nondisjunction is common during anaphase I or anaphase II of meiosis. Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold...
5.3K
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
Hormonal Regulation of the Menstrual Cycle
1.9K
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...
1.9K
Infertility in Females
4.9K
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...
4.9K


