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雌激素缺乏和雌激素受体α对抗性降低了雌性小鼠的DSS结肠炎.

Anja Hjelt1, Santeri Anttila1, Anu Wiklund1

  • 1Institute of Biomedicine, University of Turku, Turku, Finland.

Pharmacology research & perspectives
|July 4, 2024
PubMed
概括
此摘要是机器生成的。

雌激醇等卵巢激素可能会使炎症性肠病 (IBD) 恶化. 雌激醇在小鼠中加剧了结肠炎,而SERM2显示出保护作用,这表明ERα信号加剧了肠道炎症.

关键词:
大肠炎是一种大肠炎.德克斯硫酸盐是什么意思雌二醇是雌二醇的一种药物.雌激素 雌激素 雌激素 是一种雌激素受体调节器是什么炎症性肠道疾病 炎症性肠道疾病这些受体是受体受体.

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科学领域:

  • 胃肠病学 胃肠病学
  • 内分泌学 在内分泌学.
  • 免疫学 免疫学 免疫学

背景情况:

  • 荷尔蒙避孕与女性炎症性肠病 (IBD) 风险增加有关.
  • 卵巢激素,特别是雌激素和雌激素受体 (ER) 参与肠道炎症的进展.

研究的目的:

  • 为了研究雌激醇和SERM2对小鼠硫酸诱导的大肠炎的影响.
  • 探索雌激素受体α (ERα) 信号在结肠炎中的作用.

主要方法:

  • 使用了一种小鼠模型的硫酸德克斯诱导大肠炎.
  • 在未受损卵巢的小鼠和卵巢切除 (OVX) 的小鼠中比较结果.
  • 以预防性方式使用雌激醇或SERM2.

主要成果:

  • 与完整的小鼠相比,经过卵巢切除的小鼠显示结肠炎得分减少了三倍.
  • 雌二醇补充剂在OVX小鼠中加剧了结肠炎,将得分提高到完整小鼠中所见的水平.
  • 在OVX小鼠中,随着雌激醇补充,免疫透和炎症性互白素基因表达 (Il1b,Il6,Il17a) 显著增加.
  • 在完整的动物中,SERM2治疗显示出轻微但持续的炎症降低.
  • 环氧化原酶-2诱导与大肠炎小鼠的血清雌激素水平相关.

结论:

  • 雌激素受体α (ERα) 信号似乎在结肠炎中起着恶化作用.
  • 卵巢激素对大肠炎的影响是显著的,需要进一步调查.
  • ER抗体可能具有缓解肠道炎症的潜力.