代谢
大黄酸苷A和B通过肠道细菌代谢为番泻苷A和B。番泻苷A和B进一步通过肠道细菌利用β-葡萄糖苷酶代谢为大黄酸蒽酮[DB13175]。大黄酸蒽酮[DB13175]被吸收进入系统循环,其中2.6%通过氧化代谢为大黄酸[DB13174]和番泻苷A和B。大黄酸蒽酮[DB13175]是大黄酸苷A和B的主要活性代谢物,产生药物的泻药效果。大黄酸[DB13174]也是一种活性代谢物,已知具有多种保护作用。
Sennosides A and B are metabolised to sennidins A and B by gut bacteria. Sennidins A and B are further metabolized to rheinanthrone [DB13175] by gut bacteria using beta-glucosidase. Rheinanthrone [DB13175] is absorbed into systemic circulation where 2.6% is metabolized to rhein [DB13174] and sennidins A and B via oxidation. Rheinanthrone [DB13175] is the major active metabolite of sennosides A and B which produces the laxative effect of the medication. Rhein [DB13174] is also an active metabolite known to have many protective effects.
来源:DrugBank