草甘对斑马鱼 (Danio rerio) 的影响 发育毒性
Ning Zhou1, Ruirui Li1, Jin Lu1,2
1Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China.
Environmental toxicology
|April 2, 2025
概括
暴露于草甘可能会损害神经系统. 这项研究发现草甘会导致斑马鱼的神经发育问题,异常行为和炎症,表明潜在的神经毒性和环境风险.
科学领域:
- 环境毒理学环境毒理学
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
背景情况:
- 草甘是一种广泛使用的除草剂,具有争论的神经毒性作用.
- 了解草甘对神经系统发育的影响至关重要.
研究的目的:
- 研究草甘对斑马鱼神经系统的分子机制和发育影响.
- 评估潜在的神经毒性和环境风险.
主要方法:
- 斑马鱼模型在受精后6-72/120小时暴露于草甘.
- 对基因调节的分析 (Elavl3,GAP-43,Neurog1,GFAP). 基因调节的分析.
- 评估蛋白质表达 (HuC,GFAP),形态变化和行为反应.
主要成果:
- 草甘改变了关键神经发育基因和蛋白质的表达 (例如,下调的Elavl3,降低的HuC,增加的GFAP).
- 观察到的形态缺陷包括脊髓和大脑形,心率减慢.
- 观察到显著的行为变化:运动活动变化和延迟的光暗反应.
结论:
- 暴露于草甘会诱导斑马鱼的神经发育损伤,炎症和行为异常.
- 结果表明草甘对水生生物的潜在神经毒性和环境风险.
- 需要进一步关注草甘对水生生态系统的影响.
相关概念视频
01:21Sleep Apnea
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
The condition is more prevalent among...
01:22Cardiopulmonary Resuscitation II: ACLS Airway Management
Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned under...