Comparison of the Effects of Triacylglycerol-CLA and Free Fatty Acid-CLA on Hepatic Lipid Metabolism in OLETF Obese Rats
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概要
- 論文の詳細を見る
The effects of conjugated linoleic acids with triacylglycerol form (TAG-CLA) and free fatty acid form (FA-CLA) on lipid mass and lipid metabolizing enzymes in the liver, and on serum metabolites was compared in Otsuka Long-Evans Tokushima fatty (OLETF) rats, which have high levels of hepatic and serum triacylglycerol (TAG) and higher serum insulin, glucose, leptin and tumor necrosis factor-alpha (TNF-α). Obese rats fed either forms of CLA significantly lowered the concentrations of TAG in the liver and serum to a similar extent, compared to the control dietary group. It was further demonstrated that both forms of CLA markedly enhanced mitochondrial carnitine palmitoyltransferase (CPT) activity, but reduced microsomal phosphatidate phosphohydrolase (PAP) activity in the liver. This suggests that the CLA-induced reduction in liver lipid mass may be attributable to increase in fatty acid β-oxidation. Both forms of CLA also lowered serum leptin levels. TAG-CLA had no significant effects on serum insulin and glucose levels, whereas FA-CLA raised the serum glucose level without affecting insulin levels. TNF-α concentrations were comparable between the groups. These results suggest that TAG-CLA and FA-CLA reduce TAG levels in the liver and serum, but have different effects on fasting serum glucose levels in OLETF obese rats.
- 日本油化学会の論文
- 2003-03-01
著者
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NAGAO Koji
Laboratory of Nutrition Biochemistry, Faculty of Agriculture, Saga University
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YANAGITA Teruyoshi
Laboratory of Nutrition Biochemistry, Faculty of Agriculture, Saga University
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Tominaga Y
Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Yanagita Teruyoshi
佐賀大学 食糧科学
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Yanagita Teruyoshi
Lab. Of Nutrition Biochemistry Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Yanagita Teruyoshi
Laboratory Of Nutrition Biochemistry Faculty Of Agriculture Saga University
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Nagao K
School Of Medicine And Center For Aids Research Kumamoto University
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Wang Yu-ming
Department Of Applied Biological Sciences Saga University
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Inoue Nao
佐賀大学 食糧科学
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Rahman Shaikh
Department Of Biochemistry University Of Wisconsin-madison
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Rahman Shaikh
Department Of Applied Biological Sciences Faculty Of Agriculture Saga University
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Nagao Koji
Laboratory Of Nutrition Biochemistry Faculty Of Agriculture Saga University
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Nagao Koji
Department Of Applied Biological Sciences Saga University
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Nagao Koji
Laboratory Of Nutrition Biochemistry Department Of Applied Biological Sciences Saga University
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WANG Yu-Ming
Laboratory of Nutrition Biochemistry, Department of Applied Biological Sciences, Saga University
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ARAO Keisuke
Laboratory of Nutrition Biochemisty, Department of Applied Biological Sciences, Saga University
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INOUE Nao
Laboratory of Nutrition Biochemisty, Department of Applied Biological Sciences, Saga University
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Nagao Kazuhiko
Faculty Of Pharmaceutical Sciences Kumamoto University
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Yanagita Teruyoshi
Dep. Of Applied Biochemistry And Food Sci. Saga Univ.
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Yanagita Teruyoshi
Laboratory Of Nutrition Biochemistry Department Of Applied Biological Sciences Saga University
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Arao Keisuke
Department Of Applied Biological Sciences Saga University
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Yanagita Teruyoshi
Laboratory Of Food And Biomolecular Science Graduate School Of Agricultural Science Tohoku Universit
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Inoue Nao
Laboratory Of Food And Biomolecular Science Graduate School Of Agricultural Science Tohoku University
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