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基因化物Rg3纳入复合物的形成和稳定机制基于分子模拟
Shili Pan1, Wei Shen1, Xuehui Ding1
1Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China.
Pharmaceutical development and technology
|January 2, 2025
概括
通过形成含有2-基基-β-环极素 (HP-β-CD) 的包容复合物,金色化物Rg3的溶解性得到了显著增强. 分子模拟显示范德瓦尔斯力稳定这些复杂物,提高水溶性.
科学领域:
- 药理学和制药科学 药理学和制药科学
- 材料科学 材料科学 材料科学
- 计算化学计算化学
背景情况:
- 金色化物Rg3 (G-Rg3) 具有治疗潜力,但水溶性差限制了其应用.
- 环极素被广泛用于提高难以溶解的化合物的可溶性.
- 了解G-Rg3和环极素之间的分子相互作用对于优化药物输送系统至关重要.
研究的目的:
- 为了确定最有效的循环德克斯特林载体,以提高G-Rg3的溶解性.
- 阐明G-Rg3/cyclodextrin复合物的形成和稳定性背后的分子机制.
- 为了优化G-Rg3/HP-β-CD纳入复合物的制备.
主要方法:
- 对G-Rg3复合的比较分析与β-环极素 (β-CD),2-基-β-环极素 (HP-β-CD) 和2,6-二甲基-β-环极素 (DM-β-CD).
- 使用直角测试优化G-Rg3/HP-β-CD复合制剂.
- 通过差分扫描热度计 (DSC),里叶变换红外光谱 (FTIR) 和X射线衍射 (XRD) 进行包容复合物的表征.
- 在体外溶解度评估和分子动力学 (MD) 模拟.
主要成果:
- 与β-CD和DM-β-CD相比,HP-β-CD与G-Rg3形成了更稳定,更可溶的包容复合体.
- 确定了G-Rg3/HP-β-CD复合物的最佳制备条件:质量比为1:125,包含时间为2h,温度为30°C.
- 在实验室中,G-Rg3包容复合物的溶解度增加了2.9倍.
- MD模拟确定了范德瓦尔斯力作为主要的稳定相互作用.
结论:
- 惠普-β-CD是提高G-Rg3溶解度和稳定性的优质载体.
- 优化准备显著改善了包容性复杂的形成.
- 分子模拟为稳定机制提供了宝贵的见解,有助于未来的配方开发.
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