食品科学 ›› 2010, Vol. 31 ›› Issue (21): 335-339.doi: 10.7506/spkx1002-6630-201021076

• 营养卫生 • 上一篇    下一篇

燕麦乙醇提取物分级萃取组分对血管平滑肌细胞增殖的抑制作用

黄 晨,籍保平* ,杨佩颖,周 峰,吴 薇,蔡圣宝   

  1. 中国农业大学食品科学与营养工程学院
  • 收稿日期:2010-04-19 修回日期:2010-07-30 出版日期:2010-11-15 发布日期:2010-12-29
  • 通讯作者: 籍保平 E-mail:jbp@cau.edu.cn
  • 基金资助:

    “十一五”国家科技支撑计划项目(2006BAD05A06-Z01)

Inhibitory Effect of Different Polarity Fractions of Ethanol Extract from Oat on Vascular Smooth Muscle Cell Proliferation

HUANG Chen,JI Bao-ping*,YANG Pei-ying,ZHOU Feng,WU Wei,CAI Sheng-bao   

  1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Received:2010-04-19 Revised:2010-07-30 Online:2010-11-15 Published:2010-12-29
  • Contact: JI Bao-ping E-mail:jbp@cau.edu.cn

摘要:

选用不同极性的溶剂对燕麦乙醇提取物进行分级萃取,并对得到的4 种不同萃取组分进行体外DPPH 自由基清除能力、抑制血管平滑肌细胞(VSMC)增殖能力及促进VSMC 释放NO 能力进行评价。结果发现:4 种组分中,乙酸乙酯萃取组分具有最强的DPPH 自由基清除能力,其EC50 值为(2.5 ± 0.4)mg/mL;通过抑制VSMC 增殖的实验研究发现,乙酸乙酯萃取组分能显著抑制VSMC 增殖,提高VSMC 产NO 能力。选用HPLC 对乙酸乙酯萃取组分进行初步分析发现其主要含有3 种蒽酰胺组分,分别为Bc、Bp 和Bf。

关键词: 燕麦乙醇提取物, 血管平滑肌, 增殖抑制作用, 一氧化氮

Abstract:

The ethanol extract from oat was fractionated with different polarity solvents (n-hexane, ethyl acetate, 1-butanol and water), and the four fractions obtained were assessed for their abilities to scavenge DPPH free radicals, inhibit the proliferation of vascular smooth muscle cells (VSMC) and promote the release of NO from VSMC in vitro. Among these four fractions, the ethyl acetate soluble fraction had the most prominent DPPH free radical scavenging ability, with an EC50 of (2.5 ± 0.4)mg/mL. Meanwhile, this fraction could remarkably inhibit the proliferation of VSMC and elevate the NO producing ability. The preliminary HPLC analysis indicated that this fraction mainly contained three kinds of avenanthramide, Bc, Bp and Bf.

Key words: ethanol extract from oat, vascular smooth muscle cell, inhibition of proliferation, NO

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