抗糖尿病配方与纳米塑料的相互作用及其对血蛋白的二元影响
Durgalakshmi Rajendran1, Rinku Polachirakkal Varghese2, George Priya Doss C2
1Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
Environmental toxicology and pharmacology
|August 19, 2023
概括
甲胺化物 (Met-HCl) 吸附在聚烯纳米塑料 (PSNPs) 上,改变其与人血清白蛋白 (HSA) 的结合. 这种相互作用可能会影响药物的疗效和分布,影响抗糖尿病机制.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 生物化学 生物化学
背景情况:
- 纳米塑料 (PSNPs) 是普遍存在的环境污染物.
- 甲胺 (Met-HCl) 是一种广泛使用的抗糖尿病药物.
- 了解环境污染物和制药之间的相互作用对于公共卫生至关重要.
研究的目的:
- 为了研究Met-HCl在PSNP上的吸附.
- 确定Met-HCl吸附对PSNP对血蛋白结合的影响,特别是与人血清白蛋白 (HSA).
- 阐明控制这些相互作用的机制及其潜在的毒理影响.
主要方法:
- 光谱法被用来研究HSA结合.
- 分析了吸附动力学和同热量 (伪二次,粒子内扩散,兰木尔).
- 使用FE-SEM,FTIR和HRMS进行了表面表征.
- 用分子对接和模拟研究来理解结合相互作用.
主要成果:
- 在PSNP上met-HCl吸附跟随伪二次动力学和兰格穆尔异体,表明物理吸附和化学吸附.
- Met-HCl-PSNPs复合体通过结和范德瓦尔斯力对HSA光的静态火.
- FTIR证实了HSA二级结构的变化.
- 当Met-HCl被吸附时,观察到PSNP对HSA的亲和力降低.
- 分子研究证实了HSA-Met-HCl-PSNP复合体中的疏水相互作用和键.
结论:
- 在PSNPs上的met-HCl吸附会改变其与HSA的相互作用,可能影响其药理动力学和药理动力学特征.
- 对HSA的结合减少表明,含有Met-HCl的PSNP可能更容易到达目标器官,可能破坏抗糖尿病机制.
- 这项研究提供了对纳米塑料和药品联合暴露的复杂毒动力学和毒动力学方面的见解.
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