【摘要】 目的研究低分子甲壳铵在小鼠体内的吸收及其在组织中的分布。方法采用氚标记法,测定低分子甲壳铵灌胃后的血药浓度,药动学参数采用DASver1.0程序计算,观察其在小鼠体内的组织分布。结果低分子甲壳铵药动学符合二室模型,在肾、肝、脾中分布较高,其在肿瘤组织中的分布显著高于正常小鼠同一部位的肌肉组织。结论低分子甲壳铵口服可吸收,并易于与肿瘤结合,有望开发成为一种口服抗肿瘤药。更多还原

【Abstract】 Objective To study the absorption and distribution of low molecular N-trimethyl chitosan chloride in mice.Methods Using tritium marking method to determine the concentrations of low molecular N-trimethyl chitosan chloride in serum after oral administration.Its pharmacokinetics were analysed by DAS ver1.0 program and the distributions in tissues were examined. Results The pharmacokinetics of low molecular N-trimethyl chitosan chloride were consistent with two-compartment model.The radioactive concentrations in liver,kidney,lung and spleen were higher than those in other tissues.And the radioactive concentration in cancer was higher. Conclusion Low molecular N-trimethyl chitosan chloride could be absorbed after oral administration.It was easily conjugate with cancer surface and could be developed as an anticancer drug for oral use in the future.更多还原