银屑灵与土茯苓中落新妇苷大鼠体内的药代动力学比较

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica(2012)

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Abstract
目的:建立大鼠体内落新妇苷的SPE-HPLC分析方法,通过复方银屑灵与单味土茯苓中落新妇苷药代动力学参数的比较,探讨配伍对落新妇苷大鼠体内药代动力学行为的影响.方法:雄性SD大鼠分别灌胃银屑灵、土茯苓提取物后,于不同时间眼眶静脉丛采血,固相萃取( SPE)法处理.采用反相高效液相色谱法,以甲醇-乙腈-0.05%甲酸为流动相梯度洗脱;Phcnomenex C18色谱柱,柱温24℃,流速0.8 mL·min-1.结果:落新妇苷在0.266~53.1 mg·L-线性关系良好(r=0.996);提取回收率为79.0%~89.1%;用非隔室模型估算药物动力学参数t1/2,Cmax,AUC0-1,AUCo.∞ MRT,各参数具有统计学意义.结论:该法可用于落新妇苷的药代动力学研究;配伍可提高落新妇苷在大鼠体内的生物利用度.
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Key words
Astilbin,Pharmacokinetics,Smilacis Glabrae Rhizoma,Yinxieling
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