亚马逊传统种群中的污染:与暴露频率相关的金属蛋白学研究
Nubya Gonçalves Cavallini1, Felipe Dalmazzo Cirinêu1, José Cavalcante Sousa Vieira1
1Sao Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, Brazil.
Journal of hazardous materials
|July 11, 2025
概括
这项研究引入了新的金属蛋白学方法来分析巴西亚马逊地区的 (Hg) 污染. 免疫球蛋白卡帕和血清胺成为传统人群中Hg暴露的潜在生物标志物.
科学领域:
- 环境健康 环境健康
- 蛋白质组学是指蛋白质组学
- 毒理学 毒理学 毒理学
背景情况:
- (Hg) 污染是亚马逊人类人口的一个持续问题.
- 之前关于污染的研究很少采用蛋白质组方法.
- 需要新的采样和金属蛋白质组策略来了解Hg暴露.
研究的目的:
- 通过蛋白质学方法研究来自巴西亚马逊传统人口的血样本中的污染.
- 为了确定潜在的蛋白质生物标志物,表明暴露于.
- 在这种情况下,应用新型采样 (NoviplexTM卡) 和金属保护学技术.
主要方法:
- 从使用NoviplexTM卡的志愿者那里收集了血样本.
- 蛋白质是通过冷酸沉在血化后分离出来的.
- 总 (HgT) 用石墨炉吸收原子光谱学 (GFAAS) 来量化.
- 枪支液体染色学-双重质谱法 (LC-MS/MS) 用于蛋白质组分析.
主要成果:
- 根据增加HgT度 (270至3030μg/kg) 建立了四组志愿者.
- 蛋白质组分析确定了132种蛋白质,具有显著的折叠变化或跨暴露组独特的表达.
- 免疫球蛋白卡帕在更高的暴露组 (g3和g4) 中被独特地表达.
- 在最高暴露组 (g4) 中,青氨酸显示出正的折叠变化.
结论:
- 免疫球蛋白卡帕和血清具有特征,表明它们作为暴露生物标志物的潜力.
- 这些蛋白质可以作为传统亚马逊人群中暴露的有价值指标.
- 这项研究强调了金属蛋白质学策略在评估环境污染物暴露时的有用性.
相关概念视频
01:27The Periodic Table and Organismal Elements
20.2K
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...
Periodic Table Provides Information...
20.2K
01:36Types of Toxins
2.0K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
2.0K