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Natural phosphodiesterase-4 inhibitors from the leaf skin of Aloe barbadensis Miller

文献类型： 外文期刊

作者： Zhong, Jia-Sheng 1 ; Huang, Yi-You 1 ; Zhang, Tian-Hua 1 ; Liu, Yu-Peng 1 ; Ding, Wen-Jing 1 ; Wu, Xiao-Fang 2 ; Xie, 1 ;

作者机构： 1.Sun Yat Sen Univ, Sch Pharmaceut Sci, Guangzhou 510006, Guangdong, Peoples R China

2.Chinese Acad Trop Agr Sci, Anal & Testing Ctr, Haikou 571101, Peoples R China

3.Hainan Prov Key Lab Qual & Safety Trop Fruits & V, Haikou 571101, Peoples R China

关键词： Aloe barbadensis Miller;Anthrone;Chromone;PDE4;Cytotoxicity

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： The ethanolic extract of Aloe barbadensis Miller leaf skin showed inhibitory activity against phosphodiesterase-4D (PDE4D), which is a therapeutic target of inflammatory disease. Subsequent bioassay-guided fractionation led to the isolation of two new anthrones, 6'-O-acetyl-aloin B (9) and 6'-O-acetyl-aloin A (II), one new chromone, aloeresin K(8), together with thirteen known compounds. Their chemical structures were elucidated by spectroscopic methods including UV, IR, 1D and 2D NMR, and HRMS. All of the isolates were screened for their inhibitory activity against PDE4D using tritium-labeled adenosine 3',5'-cyclic monophosphate (H-3-cAMP) as substrate. Compounds 13 and 14 were identified as PDE4D inhibitors, with their IC50 values of 9.25 and 4.42 mu M, respectively. These achievements can provide evidences for the use of A. barbadensis leaf skin as functional feed additives for anti-inflammatory purpose. (C) 2014 Elsevier B.V. All rights reserved.

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