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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Yang, Daqing Li, Xuegang Gao, Pincao Xiao, Yubo He, Kai Zhang, Zaiqi Xin, Xiaoliang Zhou, Taimei Yong, Yang Li, Shuping |
| Copyright Year | 2016 |
| Abstract | The present study evaluated the antihyperlipidemic activity of myricetin, myricetrin, the alcohol fraction (AF) and the ethyl acetate fraction (EF) obtained from the bark of Myrica rubra (MR) in high-fat and high-cholesterol (HFHC) induced hyperlipidemic C57BL/6j mice. Mice were treated with myricetin, myricetrin, AF and EF with a dose of 130 mg per kg per day for 35 days. After treatment, serum parameters including total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), total bile acids (TBA), etc., were examined. The results revealed that EF showed the highest weight lowering activity (P < 0.01). All tested samples decreased the levels of the TC, TG, LDL-C, TBA and LPS (lipopolysaccharide) content in the serum of mice to different extents. Liver fat deposition was significantly reduced after myricetin, myricetrin, AF and EF therapy (P < 0.01). Additionally, the cell size of epididymal adipose tissue was also decreased in myricetin, AF and EF groups (P < 0.05). The antihyperlipidemic activity of these samples may be attributed to the inhibition of lipid synthesis via suppressing the expression of HMGCR (3-hydroxy-3-methylglutaryl coenzyme A reductase) and ACC1 (acetyl-CoA carboxylase), promoting the metabolism and excretion of lipids via up-regulating the expression of SREBP2 (sterol regulatory element binding proteins), LDLR (low density lipoprotein receptor), UCP2 (uncoupling protein 2) and CYP7A1 (cholesterol 7α-hydroxylase). These results may provide a powerful foundation for seeking and utilizing Myrica rubra bio-active compounds for the treatment of hyperlipidemia and cardiovascular diseases. |
| Starting Page | 3505 |
| Ending Page | 3515 |
| Page Count | 11 |
| File Format | HTM / HTML PDF |
| ISSN | 20426496 |
| Volume Number | 7 |
| Issue Number | 8 |
| Journal | Food & Function |
| DOI | 10.1039/c6fo00623j |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Myrica Lipid-lowering agent Ethyl acetate Magnetic resonance imaging Cholesterol Triglyceride Lipoprotein Bile Root system Lipopolysaccharide Lipid Adipose tissue Coenzyme A Acetyl-CoA carboxylase Metabolism Sterol regulatory element-binding protein 2 Sterol regulatory element-binding protein LDL receptor Estrogen receptor Protein Cholesterol 7 alpha-hydroxylase Hyperlipidemia |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Food Science |
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