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Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...

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聚乙烯微塑料内部化术语的胎盘胆小 explants 胎盘胆小

Aldilane Lays Marques1, Rodrigo Weingrill2, Stephanie Ospina-Prieto1

  • 1Cell Biology Laboratory, Institute of Biological and Health Sciences, Federal University of Alagoas, 57072-900, Maceio, Brazil.

Placenta
|June 12, 2025
PubMed
概括

聚烯微塑料 (MPs) 可以进入并分布在胎盘组织内,深入小体,而不会破坏屏障. 需要进一步的研究来了解这种胎盘微塑料吸收对健康的影响.

关键词:
原子力显微镜的原子力显微镜.同焦点显微镜的共聚焦显微镜微塑料是一种微塑料.胎盘 胎盘 胎盘 胎盘转载 转载 转载 转载

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科学领域:

  • 环境科学 环境科学
  • 毒理学 毒理学 毒理学
  • 生殖生物学 生殖生物学

背景情况:

  • 微塑料 (MPs) 是人类组织中发现的新兴环境污染物,包括胎盘.
  • 胎盘中MPs的存在引起了人们对潜在的胎盘屏障穿越和胎儿暴露的担忧.

研究的目的:

  • 为了研究胎盘屏障的透和聚乙烯 (PS) -MPs在胎盘长期胆小的分布.
  • 分析PS-MP与胎盘组织的相互作用,并探索潜在的内化机制.

主要方法:

  • 长期的胎盘胆小暴露于5微米大小的PS-MPs (100微克/毫升) 长达72小时.
  • 用光学显微镜,共聚焦原子力显微镜 (C-AFM) 和光共聚焦成像进行了MP内部化和分布的分析.

主要成果:

  • 发现聚氨酸MPs穿过胎盘屏障,吸附到表面,并在同聚氨基芽细胞和胆管胞介质体内内化.
  • 观察到MPs深度高达120μm的小,周围环绕着actin,这表明有活跃的内化机制.
  • 在MP内部化过程中没有观察到胎盘屏障破坏或膜破裂的证据.

结论:

  • 这项研究表明,PS-MPs可以在不损害屏障完整性的情况下透到胎盘组织.
  • 需要紧急调查,以了解MP内部化对胎盘平衡和胎儿发育潜在不良影响的影响.
  • 进一步的研究应该集中于阐明MP内部化机制及其对胎盘组织的生理影响.