Antioxidative activity and anti-inflammatory effects of diarylheptanoids isolated from <Emphasis Type="Italic">Alnus hirsuta</Emphasis> |
| |
Authors: | Weicheng Hu Myeong-Hyeon Wang |
| |
Institution: | (1) Pharmaceutical Research and Technology Institute, Kinki University, 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan |
| |
Abstract: | Two diarylheptanoids, 1,7-bis-(3,4-dihydroxyphenyl)-heptane-3-one-5-O-β-d-xylopyranoside (I) and 1,7-bis-(3,4-dihydroxyphenyl)-heptane-5-O-β-d-xylopyranoside (II), were isolated from the bark of Alnus hirsuta. Compounds I and II exhibited strong antioxidative activity against 1,1-diphenyl-2-picrylhydrazyl radicals, with IC50 values of 8.36 ± 0.54 and 8.67 ± 1.46 μM, respectively. In addition, we demonstrated that compounds I and II inhibited the
production of nitric oxide and reactive oxygen species and the expression of proinflammatory molecules such as inducible nitric
oxide synthase and cyclooxygenase-2 in lipopolysaccharide-induced macrophages. According to our results, the two diarylheptanoids
isolated from the bark of A. hirsuta exhibited significant antioxidative activity and anti-inflammatory effects and may be useful in the pharmaceutical industry
for alleviating oxidative stress. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|