食品科学 ›› 2011, Vol. 32 ›› Issue (3 ): 238-240.

• 营养卫生 • 上一篇    下一篇

大叶紫薇叶水提物对氧化损伤下胰腺细胞的保护作用

宋家乐   

  1. 釜山国立大学食品科学和营养学科
  • 收稿日期:2010-06-12 修回日期:2011-01-10 出版日期:2011-02-15 发布日期:2011-01-13
  • 通讯作者: 宋家乐 E-mail:bio.paul@hotmail.com

Protective Effect of Water Extract from Lagerstroemia specious L. Leaves on Oxidation-damaged HIT-T15 Pancreatic Cells

Song Jia-Le   

  1. Department of Food Science and Nutrition, Pusan National University
  • Received:2010-06-12 Revised:2011-01-10 Online:2011-02-15 Published:2011-01-13
  • Contact: Song Jia-Le E-mail:bio.paul@hotmail.com

摘要: 探讨大叶紫薇叶水提物对氧化损伤下HIT-T15 细胞的保护作用及其对胰岛素分泌量的影响。通过检测细胞内Akt 蛋白质表达量并结合ELISA 法检测大叶紫薇叶水提物对HIT-T15 细胞胰岛素分泌量的影响。同时,结合细胞内线粒体膜电位改变程度和抗凋亡蛋白质Bcl-2 表达量以研究其分子层面的抗凋亡机制。结果提示,大叶紫薇叶水提物可抑制氧化损伤下HIT-T15 细胞的凋亡,并可改善受损细胞自身的胰岛素分泌能力。

关键词: 大叶紫薇, 氧化损伤, 抗凋亡, 胰岛素分泌

Abstract: In this study, the protective effect of water extract from Lagerstroemia specious L. (Banaba) (BWE) on insulin secretion in oxidation-damaged HIT-T15 pancreatic cells was explored. Insulin secretion was determined by ELISA assay, and the BWE-induced insulin secretion capability was evaluated by Western-blotting. The anti-apoptotic capability of BWE was analyzed by mitochondria membrane potential (MMP) change and Bcl-2 protein expression. Results indicated that BWE could enhance insulin secretion and inhibit oxidative stress-induced cell apoptosis in HIT-T15 pancreatic cells.

Key words: Lagerstroemia specious L., oxidation-damaged, anti-apoptosis, insulin secretion

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