从Poly-L-乳酸涂层植入物中释放万科米辛的数学建模
Papon Thamvasupong1, Kwanchanok Viravaidya-Pasuwat1,2
1Faculty of Engineering, Department of Chemical Engineering, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.
PloS one
|November 1, 2024
概括
这项研究开发了一种数学模型,用于预测骨植入物释放的万科米辛,显示有效的细菌抑制,没有毒性. 范科米辛的半衰期对于准确预测植入物相关感染治疗的模型至关重要.
科学领域:
- 生物材料科学 生物材料科学
- 计算机建模 计算建模
- 药理动力学 药理动力学
背景情况:
- 植入物相关的感染是一个重大的临床挑战,通常需要全身抗生素治疗,可能会产生副作用.
- 当地的抗生素输送系统旨在在植入部位达到高药物度,同时最大限度地减少全身暴露.
- 涂有多乳酸的骨头植入物为局部药物输送提供了一个潜在的平台.
研究的目的:
- 开发和验证一个数学模型,预测聚L-乳酸涂层的骨植入物释放万科米辛和抗菌功效.
- 通过 in vitro 和 in vivo 数据评估模型的可靠性.
- 评估模型预测对关键药理动力学参数的敏感性.
主要方法:
- 基于Fickian扩散原理的ANSYS-CFX计算流体动态模型的开发.
- 模型与体外万科米辛释放数据和阿加扩散研究的验证.
- 模型预测与已发表的植入物相关感染体内数据的比较.
主要成果:
- 经过验证的模型准确地预测了万科米辛释放概况和抗菌功效.
- 模型模拟表明有效抑制细菌生长,没有观察到毒性.
- 6小时后,万科米辛度达到0.95mg/ml的峰值,维持了治疗水平.
- 敏感性分析发现万科米辛的半衰期 (最大敏感性指数0.8) 比扩散系数 (最大敏感性指数0.5) 更为关键.
结论:
- 开发的数学模型可靠地预测了充满万科米的骨植入物的性能.
- 范科米辛输送系统显示出作为针对植入物相关感染的局部治疗策略的潜力.
- 对于精确的预测建模,准确输入万科米辛的半衰期至关重要.
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