V2EX blood-brain barrier

Blood-Brain Barrier

释义 Definition

血脑屏障:由脑毛细血管内皮细胞及其紧密连接等结构组成的“过滤屏障”,选择性地让某些物质进入大脑,同时阻挡毒素、病原体和许多药物进入,以保护中枢神经系统的稳定环境。(医学/生理学术语)

例句 Examples

The blood-brain barrier protects the brain from many harmful substances.
血脑屏障保护大脑免受许多有害物质的侵害。

Because the blood-brain barrier blocks many large molecules, designing drugs that reach the brain remains a major challenge in treating neurological diseases.
由于血脑屏障会阻挡许多大分子,设计能够进入大脑的药物仍是治疗神经系统疾病的一大挑战。

发音 Pronunciation (IPA)

/bld bren brir/

词源 Etymology

该词为复合名词:blood(血液)+ brain(大脑)+ barrier(屏障/障碍)。20世纪神经科学与生理学发展中逐渐固定为术语,用来概括“大脑与血液之间存在选择性通透界面”的现象与结构。

相关词 Related Words

文学与著作中的用例 Literary Works & Notable Mentions

  • Principles of Neural Science(Eric R. Kandel 等):讨论血脑屏障在神经系统稳态与药物进入脑内方面的意义。
  • Molecular Biology of the Cell(Alberts 等):在细胞连接与组织屏障相关章节中提及血脑屏障机制。
  • The Emperor of All Maladies(Siddhartha Mukherjee,《万病之王》):涉及癌症治疗与药物到达特定组织的限制时会提及血脑屏障相关概念。
  • The Gene: An Intimate History(Siddhartha Mukherjee,《基因传》):在叙述神经与医学研究的部分语境中涉及血脑屏障等生物医学概念。
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