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잔대 추출물과 이들 분획물들의 항산화 및 뇌신경세포 보호 효과Antioxidative and neuroprotective effects of extract and fractions from Adenophora triphylla

Authors
Chung, M.J.Lee, S.Park, Y.I.Kwon, K.H.
Issue Date
2016
Publisher
Korean Society of Food Science and Nutrition
Keywords
Adenophora triphylla; Antioxidant effect; Neuroprotective effects; Oxidative stress; SK-N-SH cells
Citation
Journal of the Korean Society of Food Science and Nutrition, v.45, no.11, pp 1580 - 1588
Pages
9
Journal Title
Journal of the Korean Society of Food Science and Nutrition
Volume
45
Number
11
Start Page
1580
End Page
1588
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/8577
DOI
10.3746/jkfn.2016.45.11.1580
ISSN
1226-3311
2288-5978
Abstract
잔대의 70% 에탄올 추출물은 강한 항산화 효과 및 산화적 스트레스 조건에서 뇌신경세포 사멸 억제 효과가 있었다. 6개의 분획물 중에 잔대 추출물의 클로로포름 분획물(ATCH)은 높은 DPPH 라디칼 소거작용 및 세포 내 활성산소종(ROS) 소거작용을 가지고 있었고 H₂O₂에 대항하여 뇌신경세포(SK-N-SH) 보호 효과가 가장 뛰어났다. 활성이 가장 우수한 클로로포름 분획물을 대상으로 주요 물질을 순수분리한 후 ¹H-NMR, 13C-NMR 그리고 EI mass spectra를 이용하여 화학구조를 분석한 결과 phytosterols(β-sitosterol과 daucosterol)이라는 것을 알 수 있었다. β-Sitosterol과 daucosterol 역시 산화적 스트레스에 대항하여 SK-NSH세포를 보호하는 작용이 있었다. AT-CH 그리고 이것으로부터 분리된 화합물은 p38 경로를 저해하였다. 이들 결과는 AT-CH는 p38 경로를 저해하고 세포 내 ROS 소거작용에 의해 산화적 스트레스로부터 뇌신경세포 보호 효과를 가질 것이라 제안하였다.
The 70% ethanol extract from Adenophora triphylla showed a strong antioxidant effect and reduced cytotoxicity of H2O2 in SK-N-SH cells. The chloroform fraction from A. triphylla extract (AT-CH) among the six fractions showed strong DPPH radical and intracellular reactive oxygen species (ROS) scavenger effects and the highest protective effect against H2O2-induced SK-N-SH cell death. Bioactivity compounds were purified from AT-CH, and the chemical structures of the compounds were determined as β-sitosterol and daucosterol on the basis of 1H-NMR, 13C-NMR, and EI mass spectra. β-Sitosterol and daucosterol also had protective effects against oxidative stress in SK-N-SH cells. Phospho-p38 MAPK levels were elevated by H2O2 but were inhibited by treatment with AT-CH and phytosterols (β-sitosterol and daucosterol) isolated from AT-CH. These results suggest that AT-CH has brain neuroprotective effects against oxidative stress (H2O2) by inhibiting activation of p38 pathways and scavenging intracellular ROS.
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