作者:Xue Bai、Yuanyuan Xie、Jia Liu、Jialin Qu、Yoshihiro Kano、Dan Yuan
DOI:10.1124/dmd.109.028555
日期:2010.2
Kakkalide is a major isoflavonoid from the flowers of Pueraria lobata (Willd.) Ohwi, possessing the protective effect against ethanol-induced intoxication and hepatic injury. The metabolism of kakkalide was investigated in rats. Thirteen metabolites were isolated by using solvent extraction and repeated chromatographic methods and identified by using spectroscopic methods including UV, IR, mass spectrometry, NMR, and circular dichroism experiments. Four new compounds were identified as irisolidone-7- O -glucuronide (M-1), tectorigenin-7- O -sulfate (M-2), tectorigenin-4′- O -sulfate (M-3), and biochanin A-6- O -sulfate (M-4) together with nine known compounds identified as irisolidone (M-5), tectorigenin (M-6), tectoridin (M-7), 5,7-dihydroxy-8,4′-dimethoxyisoflavone (M-8), isotectorigenin (M-9), biochanin A (M-10), genistein (M-11), daidzein (M-12), and equol (M-13). The metabolic pathway of kakkalide was proposed, which is important to understand its metabolic fate and disposition in humans.
Kakkalide 是一种主要的异黄酮类化合物,来自葛根(Willd.)研究人员对大鼠体内卡卡利肽的代谢情况进行了调查。利用溶剂萃取和重复色谱法分离出 13 种代谢物,并利用紫外、红外、质谱、核磁共振和圆二色性实验等光谱方法进行鉴定。鉴定出了四种新化合物,分别是鸢尾酮-7- O-葡萄糖醛酸内酯(M-1)、矢车菊素-7- O-硫酸盐(M-2)、矢车菊素-4′- O-硫酸盐(M-3)和生物茶素 A-6- O-硫酸盐(M-4),以及九种已知化合物,分别是鸢尾酮(M-5)、矢车菊素(M-6)、矢车菊素-4′- O-硫酸盐(M-3)和生物茶素 A-6- O-硫酸盐(M-4)、矢车菊素(M-6)、矢车菊苷(M-7)、5,7-二羟基-8,4′-二甲氧基异黄酮(M-8)、异矢车菊素(M-9)、生物茶素 A(M-10)、染料木素(M-11)、大黄素(M-12)和赤藓糖醇(M-13)。提出了卡卡苷的代谢途径,这对了解其在人体中的代谢命运和处置非常重要。