Response of enzyme activities and metabolic intermediate concentrations to a short-time exercise and following resting in muscle and hepatopancreas of carp.

DOI Web Site 被引用文献6件 参考文献26件

この論文をさがす

抄録

The responses of enzyme activities and metabolic intermediate concentrations to a short-time exercise and following resting were examined in the muscle and hepatopancreas of carp Cyprinus carpio. A 20 s exercise significantly increased phosphofructokinase (PFK) activity together with fructose-6-phosphate (F6P), AMP, and ADP concentrations and decreased phosphocreatine (PCr) and glycogen contents in the muscle. The exercise also increased activities of glucose-6-phosphatase (G6Pase), fructose-1, 6-bisphosphatase (FBPase), and alanine aminotransferase in the hepatopancreas as well as concentrations of glucose, lactate, and free amino acid in the serum. A 45 min resting period after the exercise tended to recover many enzyme activities and body component concentrations to the pre-exercise values, but activities of hepatopancreatic G6Pase and FBPase remained high during this period. These results suggest that the exercise enhanced in vivo glycolysis through the activation of PFK in muscle to supply ATP for the energy source. In addition, a higher gluconeogenesis in the hepatopancreas seems to make a contribution to restore muscle components such as PCr and glycogen during exercise and the resting period, showing an interdependence of carbohydrate metabolism between muscle and hepatopancreas.

収録刊行物

被引用文献 (6)*注記

もっと見る

参考文献 (26)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ