通过中等剂量的暴露,小鼠脏形成受损
Carlos Agustin Isidro Alonso1, Jenna Haverfield1, Gabriela Regalado1
1The Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
Toxicology and applied pharmacology
|May 1, 2025
概括
在胚胎发育期间接触会损害脏的形成,减少脏数量. 这种早期接触无机 (iAsIII) 和甲基化可能会增加晚年慢性病 (CKD) 的风险.
科学领域:
- 发展性毒理学 发展性毒理学
- 环境健康 环境健康
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 全球数百万人接触的数量超过了安全限度.
- 长期暴露于与慢性病 (CKD) 有关.
- 对脏发育的影响尚不清楚.
研究的目的:
- 为了调查素是否会在小鼠脏发育过程中损害脏形成.
- 为了确定无机 (iAsIII) 和甲基化对胚胎发育的影响.
主要方法:
- 小鼠胚胎脏扩展被用iAsIII和MMAIII治疗.
- 在被人化或野生型AS3MT的小鼠中,在子宫和出生后早期暴露于iAsIII.
- 分析脏重量,脏数,亡和基因转录 (Gdnf).
主要成果:
- iAsIII和MMAIII抑制了胚胎脏扩张的尿路芽分支形态发生.
- iAsIII暴露增加了亡并降低了Gdnf转录在发育中的脏.
- 在子宫内,iAsIII暴露减少了人类AS3MT后代的脏重量和脏数量.
结论:
- 在胚胎发育过程中暴露于会破坏脏发育,因为它会损害分支形态发生.
- 由于早年暴露于的原因,脏捐赠减少可能会使个人易患CKD.
- 暴露对脏发育和长期脏健康构成重大风险.
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