食品科学

• 基础研究 • 上一篇    下一篇

芦丁抑制牛血清白蛋白糖基化

李晓明,邓荣华,孔阳辉,夏秋琴,吕丽爽   

  1. 南京师范大学金陵女子学院,江苏 南京 210097
  • 出版日期:2014-02-13 发布日期:2014-03-17

Inhibitory Effect of Rutin on the Formation of Advanced Glycation End Products (AGEs) from Bovine Serum Albumin

LI Xiao-ming, DENG Rong-hua, KONG Yang-hui, XIA Qiu-qin, LÜ Li-shuang   

  1. Ginling College, Nanjing Normal University, Nanjing 210097, China
  • Online:2014-02-13 Published:2014-03-17

摘要:

目的:考察芦丁对糖及活性二羰基化合物诱导的牛血清白蛋白(bovine serum albumin,BSA)糖基化的抑制效果。方法:建立牛血清白蛋白-丙酮醛(bovine serum albumin-methylglyoxal,BSA-MGO)、牛血清白蛋白-乙二醛(bovine serum albumin-glyoxal,BSA-GO)、牛血清白蛋白-还原糖反应体系,利用荧光光谱的方法考察MGO、GO和还原糖对于BSA糖基化的影响,并考察芦丁对于3 个反应体系中晚期糖基化终末产物(advancedglycation end products,AGEs)的抑制作用。结果:MGO、GO、还原糖浓度分别为0.5、0.5、10 mmol/L时引发BSA蛋白糖基化反应较为显著。对于上述3 个体系,芦丁的添加浓度分别为0.25、0.25、1 mmol/L时,能有效地抑制AGEs的形成。结论:芦丁能有效地抑制BSA-MGO、BSA-GO、BSA-还原糖体系的牛血清白蛋白糖基化。

关键词: 牛血清白蛋白, 二羰基化合物, 芦丁, 糖基化终末产物

Abstract:

Purpose: To study the inhibitory effect of rutin on the formation of advanced glycation end products (AGEs)
in bovine serum albumin (BSA) system caused by sugar or dicarbonyl compounds metabolized by sugar. Methods: BSAMGO
(methylglyoxal), BSA-GO (glyoxal) and BSA-reducing sugar reaction systems were established. The effects of MGO,
GO and reducing sugar concentrations on the formation of AGEs were investigated by fluorescence spectrophotometry.
The inhibitory effect of rutin on the formation of AGEs was investigated at various concentrations added in three reaction
systems. Results: Non-enzymatic glycation of BSA was obviously observed in these three systems with MGO, GO and sugar
at 0.5, 0.5 mmol/L and 10 mmol/L, respectively. Rutin addition at concentrations of 0.25, 0.25 mmol/L and 1 mmol/L could
effectively inhibit the formation of AGEs in the three systems. Conclusion: Rutin can effectively inhibit AGEs in BSAMGO,
BSA-GO and BSA-sugar systems.

Key words: bovine serum albumin, dicarbonyl compounds, rutin, advanced glycation end product