Hypolipidemic Activity of Camellia euphlebia Flower Extract in High-fat-fed Mice.
Camellia euphlebia (family, Theaceae) has been used for the prevention and treatment of cardiovascular diseases in Southern China. However, there has been no report on the hypolipidemic activity of Camellia euphlebia flower. This study evaluated the hypolipidemic activity of different preparation of Camellia euphlebia flower extracts using in vivo models. Mice intragastrically administered aqueous extract at 400 mg/kg dose or ethanol extract at 100 and 400 mg/kg doses of Camellia euphlebia flower for 28 days exhibited significant decreases in the levels of total cholesterol, triglycerides and low-density lipoprotein cholesterol, while displaying increased level of high-density lipoprotein cholesterol in the serum. The Camellia euphlebia flower extracts also improved the antioxidant ability of hyperlipidemic mice as well as protecting the animals against liver damage by lowering the level of glutamic-pyruvic transaminase activity. Furthermore, 400 mg/kg ethanol extract effectively down-regulated the mRNA levels of fatty acid synthase, 3-hydroxy-3-methylglutaryl CoA reductase and glycerol-3-phosphate acyl transferase, suggesting that Camellia euphlebia flower extract may potentially inhibit lipid accumulation in the liver by regulating the expression of fatty acid synthase, 3-hydroxy-3-methylglutaryl CoA reductase and glycerol-3-phosphate acyl transferase. These results provided support for the potential hypolipidemic activity of Camellia euphlebia flower and could partly explain the basis of using Camellia euphlebia for the treatment of hyperlipidemia.
['He|Dongye|D|', 'Zhang|Ping|P|', 'Sai|Xuan|X|', 'Li|Xiaoyu|X|', 'Wang|Lili|L|', 'Xu|Yongping|Y|']
D000410:Alanine Transaminase D000818:Animals D000975:Antioxidants D028244:Camellia D059305:Diet, High-Fat D035264:Flowers D006903:Hydroxymethylglutaryl CoA Reductases D006949:Hyperlipidemias D000960:Hypolipidemic Agents D050356:Lipid Metabolism D008055:Lipids D008099:Liver D008297:Male D051379:Mice D010936:Plant Extracts D013482:Superoxide Dismutase
Camellia euphlebia flowers Antioxidant Lipid accumulation Hyperlipidemia Phytochemicals