Chemical constituents of Aloe barbadensis Miller and their inhibitory effects on phosphodiesterase-4D
文献类型： 外文期刊
第一作者： Zhong, Jiasheng
作者： Zhong, Jiasheng;Huang, Yiyou;Ding, Wenjing;Wan, Jinzhi;Luo, Haibin;Wu, Xiaofang
作者机构：
关键词： Chromones;Anthraquinones;Pyrones;Aloe barbadensis Mill;PDE4D inhibition
期刊名称：FITOTERAPIA （ 影响因子：2.882； 五年影响因子：3.202 ）
ISSN：
年卷期：
页码：
收录情况： SCI
摘要： Aloe barbadensis Mill has been used as food and medicine for a long time. In order to investigate the chemical constituents of A. barbadensis and their inhibitory activities towards phosphodiesterase-4D (PDE4D), 70% methanol extract of the dried A. barbadensis powder was employed. Phytochemical investigation has led to the isolation of three new chromones, 5-(hydroxymethyl)-7-methoxy-2-methylchromone (4), 5-((4E)-2'-oxo-pentenyl)-2-hydroxymethylchromone (6), and 7-hydroxy-5-(hydroxymethyl)-2-methylchromone (7), together with eighteen known compounds. Their chemical structures were determined based on spectroscopic methods including UV, IR, 1D and 2D NMR, and HRMS spectrometry. In addition, their inhibition against PDE4D was evaluated using tritium-labeled adenosine 3',5'-cyclic monophosphate (H-3-cAMP) as the substrate. Inhibition was calculated by the variation of radioactivity after the reaction, and compounds 1-4,10, and 21 exhibited certain inhibitory activities towards PDE4D, which can provide an explanation why A. barbadensis can serve as anti-inflammatory agents
分类号： S759.82
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