Mathematical modeling for local trans-round window membrane drug transport in the inner ear

Mathematical modeling for local trans-round window membrane drug transport in the inner ear
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内耳局部跨圆窗膜药物转运的数学模型

DOI:
10.3109/10717544.2016.1149745
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发表时间:
2016-03
期刊:
Drug Deliv
影响因子:
--
通讯作者:
Gang Chen
Gang Chen
中科院分区:
其他
文献类型:
--
作者:
Huanpeng Su;Lu Wen;Fan Yang;Gang Chen

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摘要圆窗膜(RWM)的结构和组成使其成为药物进入内耳的一个特别有效的途径。因此,预测RWM传输效率将为提高本地应用提供有用的信息。在本研究中,建立了一个数学模型,以实现这一目标。将一系列具有不同理化性质的药物通过RWM通过鼓室内给药导入豚鼠内耳。外淋巴药物浓度(C)数据用于计算不同药物通过RWM扩散的渗透系数(Kp)。采用Matlab软件对实验数据进行拟合,建立了基于Fick扩散定律和单室模型的血管外给药的数值模型,可用于预测不同药物经RWM的渗透曲线。总之,这个数学模型是对开发潜在有用的RWM管理模拟工具的贡献。
Abstract The structure and composition of the round window membrane (RWM) make it a particularly effective pathway for drug delivery to the inner ear. Therefore, predicting the efficiency of RWM transport would provide useful information for enhancing local application. In the present study, a mathematical model was established to achieve this goal. A series of drugs with different physicochemical properties were introduced in the inner ear cavity of guinea pigs via RWM by intratympanic application. The perilymphatic drug concentration (C) data were used to calculate the permeability coefficient (Kp) of different drugs diffusing through the RWM. The experimental data were fitted using the Matlab software to set up the numerical model based on Fick’s diffusion law and the single-compartment model following extravascular administration, which facilitated the prediction of the permeation profiles of different drugs while trans-RWM. In summary, this mathematical model is a contribution toward developing potentially useful RWM administration simulating tools.
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