Anti-Diabetic Activities of Jiaotaiwan in db/db Mice by Augmentation of AMPK Protein Activity and Upregulation of GLUT4 Expression.

Anti-Diabetic Activities of Jiaotaiwan in db/db Mice by Augmentation of AMPK Protein Activity and Upregulation of GLUT4 Expression.
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DOI:
10.1155/2013/180721
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发表时间:
2013
期刊:
Evidence-based complementary and alternative medicine : eCAM
影响因子:
--
通讯作者:
Lu X
Lu X
中科院分区:
其他
文献类型:
--
作者:
Hu N;Yuan L;Li HJ;Huang C;Mao QM;Zhang YY;Lin M;Sun YQ;Zhong XY;Tang P;Lu X

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交台湾丸(JTW)由黄连(CC)和肉桂(CIN)组成,是最著名的中药之一。在本研究中,我们研究了 JTW 对 db/db 小鼠的抗糖尿病作用和机制。结果显示,JTW 比单独使用 CC 或 CIN 更能显着降低空腹血糖水平,改善血糖和胰岛素耐受性。 JTW 还有效保护胰岛形状,增强肝脏中 AMP 激活蛋白激酶 (AMPK) 的激活,并增加骨骼肌和白色脂肪中葡萄糖转运蛋白 4 (GLUT4) 蛋白的表达。 AMPK 和 GLUT4 有助于葡萄糖代谢调节,并在糖尿病 (DM) 的发展中发挥重要作用。因此,JTW的作用机制可能与通过激活肝脏中的AMPK抑制糖异生以及通过上调GLUT4蛋白表达影响周围组织的葡萄糖摄取有关。这些发现为JTW的抗糖尿病临床应用提供了新的见解,并证明了JTW作为糖尿病治疗新候选药物的潜力。
Jiaotaiwan (JTW), which is composed of Coptis chinensis (CC) and cinnamon (CIN), is one of the most well-known traditional Chinese medicines. In this study, we investigated the antidiabetic effects and mechanism of JTW in db/db mice. Results showed that JTW significantly decreased the level of fasting blood glucose and improved glucose and insulin tolerance better than CC or CIN alone. JTW also effectively protected the pancreatic islet shape, augmented the activation of AMP-activated protein kinase (AMPK) in the liver, and increased the expression of glucose transporter 4 (GLUT4) protein in skeletal muscle and white fat. AMPK and GLUT4 contributed to glucose metabolism regulation and had an essential function in the development of diabetes mellitus (DM). Therefore, the mechanisms of JTW may be related to suppressing gluconeogenesis by activating AMPK in the liver and affecting glucose uptake in surrounding tissues through the upregulation of GLUT4 protein expression. These findings provided a new insight into the antidiabetic clinical applications of JTW and demonstrated the potential of JTW as a new drug candidate for DM treatment.
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