平衡透析法结合HPLC测定去氢骆驼蓬碱衍生物(DH-004)在大鼠血浆的蛋白结合率

The Chinese Journal of Clinical Pharmacology(2021)

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Abstract
目的 研究去氢骆驼蓬碱衍生物(DH-004)在大鼠血浆的蛋白结合率.方法 Wistar大鼠腹主动脉采血,肝素抗凝,4℃下以3.5×103 r·min-1离心15 min后分离血浆.以替硝唑为内标,用平衡透析法处理样品,用高效液相色谱(HPLC)法测定透析袋内外溶液中DH-004的浓度,计算蛋白结合率.结果 DH-004于大鼠血浆中在1.05,2.10,5.26μg·mL-1下的血浆蛋白结合率分别为(89.96±0.89)%,(90.79±0.85)%和(91.39±1.00)%.结论 DH-004与大鼠血浆蛋白有较强的结合作用,属于高蛋白结合型药物.
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