Myofibrillar Protein Catabolism is Rapidly Suppressed Following Protein Feeding

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概要

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• The immediate response of protein degradation to food intake and the factors for its regulation in rat skeletal muscle were examined. The concentration of N^τ-methylhistidine (MeHis) in serum and the rates of MeHis release from isolated soleus and extensor digitorum longus muscles were reduced in the period from 3 to 6 h after refeeding, indicating that the rate of myofibrillar protein degradation in the rat decreased immediately after refeeding. Changes in the serum concentration of insulin and corticosterone were not synchronized with those in the myofibrillar protein degradation. When rats were fed on a protein-free diet, no reduction of serum MeHis concentration or of the rate of MeHis release from isolated muscles after refeeding was apparent. Furthermore, there was a tendency toward suppressing myofibrillar protein degradation with a higher protein content of the diet. These results suggest that the suppression of myofibrillar protein degradation by food intake was regulated by dietary proteins.

• 社団法人日本農芸化学会の論文
• 1998-10-23

著者

• YOSHIZAWA Fumiaki

  Department of Science of Living, Morioka Junior College, Iwate Prefectural University

• Yoshizawa Fumiaki

  宇都宮大学

• Yoshizawa Fumiaki

  Department Of Animal Science Utsunomiya University

• Yoshizawa Fumiaki

  Department Of Animal Science Faculty Of Agriculture Utsunomiya University

• NAGASAWA Takashi

  Department of Agro-bioscience, Iwate University

• Nagasawa Takashi

  Depatment Of Biological Chemistry And Food Sciences Faculty Of Agriculture Iwate University

• Nagasawa Takashi

  岩手大学 連合農学研究科

• NISHIZAWA Naoyuki

  Department of Agro-Bioscience, Faculty of Agriculture, Iwate University

• HIRANO Junko

  Department of Bioscience and Technology, Faculty of Agriculture, Iwate University

• Hirano Junko

  Department Of Bioscience And Technology Faculty Of Agriculture Iwate University

• NISHIZAWA Naoyuki

  Depatment of Biological Chemistry and Food Sciences, Faculty of Agriculture, Iwate University

• Nagasawa Takashi

  Department Of Agro-bioscience Iwate University

• Nagasawa Takashi

  Food And Health Science Faculty Of Agriculture Iwate University

• Nishizawa Naoyuki

  Depatment Of Biological Chemistry And Food Sciences Faculty Of Agriculture Iwate University

• Nishizawa Naoyuki

  Department Of Agricultural Chemistry Faculty Of Agriculture Iwate University

• Yoshizawa Fumiaki

  Department Of Animal Science Division Of Bio-productive Science Faculty Of Agriculture Utsunomiya Un

• Nagasawa T

  Depatment Of Biological Chemistry And Food Sciences Faculty Of Agriculture Iwate University

• NAGASAWA Takashi

  Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo

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