揭示空气中微塑料的系统影响:将呼吸学和机器学习与双组织转录学相结合
Siwei Chen1, Longfa Fang2, Teng Yang1
1National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
Journal of hazardous materials
|March 1, 2025
概括
吸入空气中的微塑料 (MPs) 会导致肺部和心脏受损. 这项研究确定了呼出的挥发性有机化合物 (VOC) 作为检测MP诱导健康影响的非侵入性生物标志物.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 生物标志物发现发现
背景情况:
- 空气中的微塑料 (MPs) 具有显著的吸入风险,但目前对MP诱导的健康影响的检测方法不足.
- 评估微塑料暴露对肺和心脏等器官的系统影响需要创新的,非侵入性的技术.
研究的目的:
- 开发一种使用呼吸学和转录学评估微塑料诱导的肺和心脏损伤的非侵入性方法.
- 在呼出的呼吸中识别特定的挥发性有机化合物 (VOC) 生物标志物,这表明了微塑料的暴露.
主要方法:
- 暴露C57BL/6小鼠不同尺寸的聚烯微塑料 (0.1微米,2微米,10微米).
- 使用光诱导的关联性离子化飞行时间质谱法对呼出的挥发性有机化合物 (VOC) 进行分析.
- 整合机器学习用于VOC生物标记物识别,并对肺和心脏组织进行转录组分析.
主要成果:
- 机器学习确定了与微塑料暴露相关的特定VOCs (硫化,乙,烯,烯,烯,烯).
- 转录组分析揭示了与免疫失调,代谢障碍和心脏功能障碍相关的基因表达的显著改变.
- 组织学和免疫组织化学验证证了肺炎和心脏损伤.
结论:
- 呼吸学和转录学的整合提供了一种新的,非侵入性的方法来评估微塑料诱导的健康影响.
- 已识别的挥发性有机化合物作为有前途的生物标志物,用于早期检测和与微塑料相关的呼吸道和心脏问题的公共卫生监测.
更多相关视频
05:31Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
Published on: July 28, 2018
15.9K
09:54Combining Laser Capture Microdissection and Microfluidic qPCR to Analyze Transcriptional Profiles of Single Cells: A Systems Biology Approach to Opioid Dependence
Published on: March 8, 2020
5.2K
相关概念视频
Neural Control of Respiration
The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
Respiratory Centers in the Brainstem
Two primary areas comprise the respiratory center: the medullary respiratory center in the medulla oblongata and the pontine respiratory group in the pons. The...
Application of Integration: Problem Solving
The process of breathing involves the periodic intake and expulsion of air, known as the respiratory cycle, which typically lasts about five seconds. Modeling the volume of air inhaled into the lungs as a function of time provides insight into both the dynamics and efficiency of pulmonary ventilation. This volume is determined by integrating the airflow rate over time, which captures the cumulative effect of air entering the lungs.Sinusoidal Model of AirflowAirflow during respiration is not...
