Effect of Erabu Sea Snake (Laticauda semifasciata) Lipids on the Swimming Endurance of Aged Mice
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概要
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The effect of Erabu sea snake (Laticauda semifasciata) lipids on the swimming endurance was investigated in aged mice. Fifty three-week-old male Crlj: CD-1 (ICR) mice were fed one of three experimental diets containing either 6% lard, 6% fish oil, or 6% sea snake lipids for 16wk. The swimming exercise was carried out in an acrylic plastic tank filled with 25cm of water maintained at 23℃. Swimming times to exhaustion were measured with a load of 2% of their body weights attached to the tails of the mice. The swimming times to exhaustion of the group that were fed the sea snake lipid diet tended to be longer than those of the lard diet group, and were significantly improved compared with the fish oil diet group (p<0.05). The plasma and muscle lactate levels were significantly lower in the sea snake lipid diet group than in the lard and fish oil diet groups (p<0.05). The liver glycogen and plasma glucose levels of the sea snake lipid diet group did not differ markedly from those of the lard diet group (p>0.05), and were significantly higher than those of the fish oil diet group (p<0.05). These results suggest that an intake of sea snake lipids but not the fish oil, which is also rich in n-3 polyunsaturated fatty acids (n-3 PUFAs), is useful for improving the swimming endurance of aged mice by attenuating lactate production and/or enhancing lactate clearance during swimming exercise, and the n-3 PUFAs contained in the sea snake lipids did little or nothing for this improved endurance.
- 日本ビタミン学会の論文
著者
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Suzuki Hiramitsu
香川栄養学園 ハイテクリサーチセンター
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Suzuki Hiramitsu
High Technology Research Center Kagawa Nutrition University:laboratory Of Food Science And Technolog
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SHIRAI Nobuya
National Food Research Institute
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HIGUCHI Tomoyuki
Kagawa Nutrition University
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ZHANG Guihua
United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
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HIGUCHI Tomoyuki
National Food Research Institute
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SUZUKI Hiramitsu
National Food Research Institute
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SHIMIZU Eiji
Fuji Pharmaceutical Inc.
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Zhang Guihua
United Graduate School Of Agricultural Science Tokyo University Of Agriculture And Technology
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Shirai Nobuya
National Agriculture And Food Research Organization National Food Research Institute
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Shirai Nobuya
National Agriculture And Food Res. Organization Ibaraki Jpn
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