The effect of fucoxanthin rich power on the lipid metabolism in rats with a high fat diet.
- Author:
Ae Wha HA
1
;
Woo Kyoung KIM
Author Information
- Publication Type:Original Article
- Keywords: Fucoxanthin; SREBP-1C; CYP7A1; CPT1; lipogenesis
- MeSH: Acetyl-CoA Carboxylase; Animals; Body Weight Changes; Carnitine; Carrier Proteins; Cholesterol; Coenzyme A; Diet; Diet, High-Fat; Fatty Acid Synthetase Complex; Feces; Gene Expression; Glucosephosphate Dehydrogenase; Lipid Metabolism; Lipogenesis; Lipoproteins; Liver; Plasma; Rats; RNA, Messenger; Sterol O-Acyltransferase; Sterol Regulatory Element Binding Protein 1; Triglycerides; Xanthophylls
- From:Nutrition Research and Practice 2013;7(4):287-293
- CountryRepublic of Korea
- Language:English
- Abstract: This study determined the effects of fucoxanthin on gene expressions related to lipid metabolism in rats with a high-fat diet. Rats were fed with normal fat diet (NF, 7% fat) group, high fat diet group (HF, 20% fat), and high fat with 0.2% fucoxanthin diet group (HF+Fxn) for 4 weeks. Body weight changes and lipid profiles in plasma, liver, and feces were determined. The mRNA expressions of transcriptional factors such as sterol regulatory element binding protein (SREBP)-1c, Carnitine palmitoyltransferase-1 (CPT1), Cholesterol 7alpha-hydroxylase1 (CYP7A1) as well as mRNA expression of several lipogenic enzymes were determined. Fucoxanthin supplements significantly increased plasma high density lipoprotein (HDL) concentration (P < 0.05). The hepatic total lipids, total cholesterols, and triglycerides were significantly decreased while the fecal excretions of total lipids, cholesterol, and triglycerides were significantly increased in HF+Fxn group (P < 0.05). The mRNA expression of hepatic Acetyl-CoA carboxylase (ACC), Fatty acid synthase (FAS), and Glucose-6-phosphate dehydrogenase (G6PDH) as well as SREBP-1C were significantly lower in HF+Fxn group compared to the HF group (P < 0.05). The hepatic mRNA expression of Hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) and Acyl-CoA cholesterol acyltransferase (ACAT) were significantly low while lecithin-cholesterol acyltransferase (LCAT) was significantly high in the HF+Fxn group (P < 0.05). There was significant increase in mRNA expression of CPT1 and CYP7A1 in the HF+Fxn group, compared to the HF group (P < 0.05). In conclusion, consumption of fucoxanthin is thought to be effective in improving lipid and cholesterol metabolism in rats with a high fat diet.
