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胡霓霓, 谭群友, 张梨等. 美斯地浓磷脂复合物大鼠体内药代动力学研究[J]. koko体育app 学报(医学版), 2012, 43(6): 873-876.
引用本文: 胡霓霓, 谭群友, 张梨等. 美斯地浓磷脂符合物大鼠身上药代干劲学实验[J]. 河南大学考研学报(药学版), 2012, 43(6): 873-876.
HU Ni-ni, TAN Qun-you, ZHANG Li. et al. Pharmacokinetics of Mestinon-phospholipid Complex in Rats[J]. Journal of Sichuan University (Medical Sciences), 2012, 43(6): 873-876.
Citation: HU Ni-ni, TAN Qun-you, ZHANG Li. et al. Pharmacokinetics of Mestinon-phospholipid Complex in Rats[J]. Journal of Sichuan University (Medical Sciences), 2012, 43(6): 873-876.

美斯地浓磷脂复合物大鼠体内药代动力学研究

Pharmacokinetics of Mestinon-phospholipid Complex in Rats

  • 摘要: 【摘要】 目的 研究美斯地浓磷脂复合物在大鼠体内药代动力学特征。 方法 健康SD雄性大鼠12只,分为2组,采用双周期交叉随机实验,分别灌胃给予美斯地浓磷脂复合物混悬液(含美斯地浓 1.5 mg/kg)和美斯地浓原料药(含美斯地浓1.5 mg/kg),于不同时间点眼底静脉丛取血,采用高效液相色谱法测定各时间点血药浓度。采用DAS 2.1.1药动学程序对有关参数进行分析。 结果 美斯地浓磷脂复合物的药代动力学参数为:达峰时间(Tmax) 2 h,峰浓度(Cmax) 22.79 μg/mL, 药时曲线下面积(AUC0-∞) 7128.21 μg·min/mL,而美斯地浓原料药为:Tmax 2 h, Cmax 6.00 μg/mL, AUC0-∞ 1772.36 μg·min/mL,美斯地浓磷脂复合物相对生物利用度是原料药的410.98%。 结论 美斯地浓磷脂化后能明显提高其口服生物利用度。  
    Abstract: 【Abstract】 Objective To determine the pharmacokinetics characteristics of mestinon-phospholipid complex(PBPLC) in rats. Methods This study adopted a single-dose, randomized, open-label, two-period crossover trial design. Twelve healthy rats were randomly divided into two groups. One group was orally administered with mestinon-phospholipid complex, and the other group was orally administered with reference mestinon solution (1.5 mg/kg of mestinon). The plasma concentrations of the drugs in ophthalmic vein bloods were determined using HPLC. The pharmacokinetic parameters were calculated with the aid of DAS2.1.1 software. Results Pharmacokinetic parameters of mestinon-phospholipid complex were Tmax 2 h, Cmax 22.79 μg·min/mL and AUC0-∞ 7128.21 μg·min/mL, which were different from those of free mestinon——Tmax 2 h, Cmax 6.00 μg/mL and AUC0-∞ 1772.36 μg·min/mL. The relative bioavailability of mestinon-phospholipid complex was 410.98 % of free mestinon. Conclusion The oral bioavailability of mestinon increases remarkably when administered as mestinon-phospholipid complex.  
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