魚類の炭水化物代謝-IV コイの酢酸-U-<sup>14</sup>C およびL-アラニン-U-<sup>14</sup>C 代謝におよぼす飼料組成の影響

永井 正徳; 池田 静徳

doi:10.2331/suisan.39.633

魚類の炭水化物代謝-IV

コイの酢酸-U-¹⁴C およびL-アラニン-U-¹⁴C 代謝におよぼす飼料組成の影響

永井正徳, 池田静徳

著者情報

ジャーナルフリー

1973 年 39 巻 6 号 p. 633-643

DOI https://doi.org/10.2331/suisan.39.633

詳細

発行日: 1973/06/25 受付日: 1972/12/25 J-STAGE公開日: 2008/02/29 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/02/29 訂正理由: - 訂正箇所: 論文サブタイトル訂正内容: Wrong : Effect of Dietary Composition on Metabolism of Acetate-U-¹⁴C and _L-Alanine-U-¹⁴C in Carp
Right : Effect of Dietary Composition on Metabolism of Acetate-U-¹⁴C and L-Alanine-U-¹⁴C in Carp

訂正日: 2008/02/29 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : The metabolism of acetate-U-¹⁴C and _L-alanine-U-¹⁴C in carp was investigated.
On feeding a high carbohydrate diet, incorporation of radioactive carbon from these labeled compounds into hepatopancreatic lipid was decreased, whereas ¹⁴CO₂ evolution was increased. The condensing enzyme activity was also depressed. The reverse of these phenomena was observed on feeding a high protein diet. Gluconeogenesis appeared to proceed more from ¹⁴C-alanine than from ¹⁴C-acetate. GPT and GOT activities were almost equal, regardless of dietary conditions. However, G6Pase activity increased with an increase in dietary protein.
The results obtained suggest that the glycolytic activity of carp is not contributive enough to synthesize lipid. The precursor for lipogenesis seems to be citrate formed when amino acids are actively metabolized through the TCA cycle. The energy-utilization form of normal carp seems to resemble that of diabetic animals. Possible relationships between carbohydrate, protein and lipid metabolism and the inferiority of carbohydrate as an energy source in carp are discussed.
Right : The metabolism of acetate-U-¹⁴C and L-alanine-U-¹⁴C in carp was investigated.
On feeding a high carbohydrate diet, incorporation of radioactive carbon from these labeled compounds into hepatopancreatic lipid was decreased, whereas ¹⁴CO₂ evolution was increased. The condensing enzyme activity was also depressed. The reverse of these phenomena was observed on feeding a high protein diet. Gluconeogenesis appeared to proceed more from ¹⁴C-alanine than from ¹⁴C-acetate. GPT and GOT activities were almost equal, regardless of dietary conditions. However, G6Pase activity increased with an increase in dietary protein.
The results obtained suggest that the glycolytic activity of carp is not contributive enough to synthesize lipid. The precursor for lipogenesis seems to be citrate formed when amino acids are actively metabolized through the TCA cycle. The energy-utilization form of normal carp seems to resemble that of diabetic animals. Possible relationships between carbohydrate, protein and lipid metabolism and the inferiority of carbohydrate as an energy source in carp are discussed.

訂正日: 2008/02/29 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

The metabolism of acetate-U-¹⁴C and L-alanine-U-¹⁴C in carp was investigated.
On feeding a high carbohydrate diet, incorporation of radioactive carbon from these labeled compounds into hepatopancreatic lipid was decreased, whereas ¹⁴CO₂ evolution was increased. The condensing enzyme activity was also depressed. The reverse of these phenomena was observed on feeding a high protein diet. Gluconeogenesis appeared to proceed more from ¹⁴C-alanine than from ¹⁴C-acetate. GPT and GOT activities were almost equal, regardless of dietary conditions. However, G6Pase activity increased with an increase in dietary protein.
The results obtained suggest that the glycolytic activity of carp is not contributive enough to synthesize lipid. The precursor for lipogenesis seems to be citrate formed when amino acids are actively metabolized through the TCA cycle. The energy-utilization form of normal carp seems to resemble that of diabetic animals. Possible relationships between carbohydrate, protein and lipid metabolism and the inferiority of carbohydrate as an energy source in carp are discussed.

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