The permeability (P), diffusion (D) and solubility (S) coefficients for polymers and coatings are key parameters that affect a polymer's barrier performance.
聚合物和涂层材料的渗透系数（P）、扩散系统（D）和溶解系数（S）是影响聚合物阻隔性能的关键参数。
Results (1) Permeability of blood brain barrier was increased in burn and burn with NE stimulating rats, with significantly statistical difference compared with normal control group (P<0.01).
结果（1）烧伤大鼠和NE刺激后的烧伤大鼠血脑屏障通透性增加，与对照组比较差异有统计学意义（P<0.01）。
Compared with the K-P method, it is found that the results of two methods are accordance with the increase of the barrier width.
此法比k - P方法简便易行，而且随着势垒宽度的增加，两种方法所得结果趋于一致。
P-glycoprotein inhibitors can get drugs across the blood-brain barrier. It is of great importance to improve the blood concentration in brain and bioavailability of central nervous system drugs.
糖蛋白抑制剂可促进药物通过血脑屏障，对提高脑内药物的浓度和中枢神经系统药物的生物利用度具有重要意义。
P-glycoprotein inhibitors can get drugs across the blood-brain barrier. It is of great importance to improve the blood concentration in brain and bioavailability of central nervous system drugs.
糖蛋白抑制剂可促进药物通过血脑屏障，对提高脑内药物的浓度和中枢神经系统药物的生物利用度具有重要意义。
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