Effect of puerarin in promoting fatty acid oxidation by increasing mitochondrial oxidative capacity and biogenesis in skeletal muscle in diabetic rats

被引：78

作者：

Chen, Xiu-fang ^{[1
,2
,3
]}

Wang, Lei ^{[1
,2
]}

Wu, Yong-zheng ^{[1
,2
]}

Song, Shi-yu ^{[1
,2
]}

Min, Hai-yan ^{[1
,2
]}

Yang, Yan ^{[4
]}

He, Xuan ^{[1
,2
]}

Liang, Qiao ^{[1
,2
]}

Yi, Long ^{[1
,2
]}

Wang, Yong ^{[1
,2
]}

Gao, Qian ^{[1
,2
]}

机构：

[1] Nanjing Univ, Sch Med, Ctr Translat Med, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Med, Jiangsu Key Lab Mol Med, Nanjing 210093, Jiangsu, Peoples R China

[3] Wenzhou Med Univ, Sch Basic Med Sci, Dept Biochem, Wenzhou 325035, Zhejiang, Peoples R China

[4] Nanjing Univ, Sch Med, Affiliated Drum Tower Hosp, Dept Anesthesiol, Nanjing 210008, Jiangsu, Peoples R China

来源：

NUTRITION & DIABETES | 2018年 / 8卷

基金：

中国国家自然科学基金;

关键词：

ACTIVATED PROTEIN-KINASE; INSULIN-RESISTANCE; LIPID-METABOLISM; STRESS; PHOSPHORYLATION; GLUCOSE; DYSFUNCTION; PGC-1-ALPHA; EXPRESSION; PALMITATE;

D O I：

10.1038/s41387-017-0009-6

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Background: Type 2 diabetes is characterized by dyslipidemia and the accumulation of lipids in non-adipose tissue, including skeletal muscle. Puerarin, which is a natural isoflavonoid isolated from the root of the plant Pueraria lobata, has been shown to have antidiabetic activity. However, the lipid-reducing effect of puerarin, in particular in skeletal muscle, has not yet been addressed. Methods: We examined the effect of puerarin on mitochondrial function and the oxidation of fatty acids in the skeletal muscle of high-fat diet/streptozotocin-induced diabetic rats. Results: Puerarin effectively alleviated dyslipidemia and decreased the accumulation of intramyocellular lipids by upregulating the expression of a range of genes involved in mitochondrial biogenesis, oxidative phosphorylation, the detoxification of reactive oxygen species, and the oxidation of fatty acids in the muscle of diabetic rats. Also, the effect of puerarin on mitochondrial biogenesis might partially involve the function of the mu-opioid receptor. In addition, puerarin decreased the trafficking of fatty acid translocase/CD36 to the plasma membrane to reduce the uptake of fatty acids by myocytes. In vitro studies confirmed that puerarin acted directly on muscle cells to promote the oxidation of fatty acids in insulin-resistant myotubes treated with palmitate. Conclusions: Puerarin improved the performance of mitochondria in muscle and promoted the oxidation of fatty acids, which thus prevented the accumulation of intramyocellular lipids in diabetic rats. Our findings will be beneficial both for elucidating the mechanism of the antidiabetic activity of puerarin and for promoting the therapeutic potential of puerarin in the treatment of diabetes.

引用

页数：13

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