EGCG抑制四氧嘧啶致糖尿病小鼠RCCs-RAGE信号轴表达的研究

doi:10.13305/j.cnki.jts.2014.02.009

Abstract

Abstract: The RCCs-RAGE signal axis induced by RCCs, including AGEs and 4-HNE, plays a key role in degenerative diseases, such as diabetes and cancer. To study on inhibiting activity effects of EGCG on RCCs-RAGE, diabetic mouse induced by intraperitoneal injection Alloxan monohydrate were divided into model group, EGCG-L (10 mg·kg^-1·d^-1) group, EGCG-M (20 mg·kg^-1·d^-1) group, and EGCG-H (30 mg·kg^-1·d^-1) group according to body weight and blood glucose. After 12 days’ administration respectively to three groups of diabetic mouse by gavage, blood glucose value, insulin, sRAGE concentration, carbonyl content and fluorescence value of AGEs in serum were determinde, while the expressions of RAGE gene in kidney were detected by QPCR, RAGE protein and 4-HNE experiment by western bolt. Result showed, compared to model group, EGCG could improve diabetes symptom of mouse by significantly decreasing the formation of RCCs, including carbonyl, 4-HNE and AGEs, increasing the concentration of sRAGE in serum, inhibiting the inflammation reaction induced by RCCs-RAGE, and alleviating the oxidation stress effectively. The study revealed that EGCG inhibited the RCCs-RAGE signal axis may be one of the potential mechanisms in the treatment of degenerative diseases.

Key words: EGCG, diabetes, reactive carbonyl compounds, receptor for advanced glycation end products

CLC Number:

ZHONG Yuan, ZHANG Jing, LIU Zhonghua, CAI Shuxian, LUO Guoan, HUANG Jian′an, WU Xianglan, QU Shaoming, JIN Lisha. Study on the Inhibition Effects of EGCG on the Expression of RCCs-RAGE Axis in Diabetic Mouse Induced by Alloxan Monohydrate[J]. Journal of Tea Science, 2014, 34(2): 156-164.

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Study on the Inhibition Effects of EGCG on the Expression of RCCs-RAGE Axis in Diabetic Mouse Induced by Alloxan Monohydrate

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