甲基转移酶和2-甲氧 Estradiol 的缺乏与妊娠前有关
Keizo Kanasaki1, Kristin Palmsten, Hikaru Sugimoto
1Division of Matrix Biology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA.
Nature
|May 13, 2008
概括
缺乏甲基转移酶 (COMT) 的小鼠由于低水平的二甲氧 Estradiol (2-ME) 产生了孕前症状. 补充2-ME可以扭转这些症状,这表明它有可能作为前症的诊断和治疗剂.
科学领域:
- 生殖生物学 生殖生物学
- 孕产妇和胎儿的医学
- 遗传学 是一个遗传学.
背景情况:
- 前孕是一种妊娠并发症,其特点是高血压,蛋白尿和.
- 目前的理解表明,胎盘缺氧和血管生成失衡 (VEGF/PLGF/sFLT-1) 导致症状,但机制尚不清楚.
- 现有的理论并不能完全解释所有的妊娠前病例,这表明了潜在的上游分子缺陷.
研究的目的:
- 调查甲基转移酶 (COMT) 和其代谢物二甲氧化醇 (2-ME) 在孕前中的作用.
- 为了识别生前的遗传小鼠模型.
- 探索2-ME在孕前的诊断和治疗潜力.
主要方法:
- 产生的怀孕小鼠缺乏COMT (Comt(-/-)).
- 评估了怀孕小鼠的表型,以检测出类似于子宫的特征.
- 给孕小鼠服用2-ME并评估其对症状,胎盘缺氧和分子标志物的影响.
- 在女性中测量了COMT和2-ME水平,无论是患有重度妊娠前还是没有.
主要成果:
- 怀孕的小鼠表现出一种类似于子前症的表型,这与缺少2-ME有关.
- 在这些小鼠中,2-ME的使用改善了这些小鼠的所有类似子前症的特征,而没有毒性.
- 2-ME治疗抑制了胎盘缺氧,缺氧诱导因子-1α表达和sFLT-1升高.
- 患有严重子宫前的女性的COMT和2-ME水平明显较低.
结论:
- 缺少COMT导致2-ME降低,在小鼠中引起一种类似于子宫的表型.
- 2-ME显示出作为妊娠前的诊断标记物的潜力.
- 2-ME可以作为预防或治疗子宫前的治疗剂.
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