饲粮中添加阿拉斯加明太鱼蛋白可诱导大鼠急性骨骼肌肥大,与特定氨基酸和氨基酸平衡无关

Kenji Uchida, Mina Fujitani, Takafumi Mizushige, Kohsuke Hayamizu, Yuma Hara, Mariko Sawai, Sachi Utsunomiya, Ryota Uehigashi, Shinji Okada, Taro Kishida
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引用次数: 0

摘要

在以往的研究中,摄入阿拉斯加明太鱼蛋白可引起大鼠急性和持续性骨骼肌肥大。本研究使用5周龄雄性Sprague-Dawley大鼠来研究一种特定的氨基酸或氨基酸组成是否与阿拉斯加鳕鱼蛋白诱导的骨骼肌肥大有关。结果提示,饲粮中添加阿拉斯加明太鱼蛋白可增加腓肠肌质量,而不考虑特定氨基酸(包括精氨酸和亮氨酸),这提示饲粮中添加这些蛋白质可增加骨骼肌质量和氨基酸平衡。与口服酪蛋白相比,口服333 mg/kg/d的阿拉斯加鳕鱼蛋白显著增加了大鼠的肠肌重量。在这种情况下,氨基酸摄入量预计与酪蛋白组几乎相同,因为阿拉斯加鳕鱼蛋白质占每天摄入蛋白质的约1/60。来自阿拉斯加鳕鱼蛋白的特定蛋白或特定水解肽或阿拉斯加鳕鱼蛋白中的其他次要成分可能是造成腓肠肌重量肥大的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dietary Alaska Pollack Protein Induces Acute Skeletal Muscle Hypertrophy in Rats, Regardless of Specific Amino Acid and Amino Acid Balance of Diet
In previous studies, Alaska pollack protein intake induced acute and sustainable skeletal muscle hypertrophy in rats. The present study used 5-week-old male Sprague–Dawley rats to investigate whether a specific amino acid or amino acid composition is related to Alaska pollack protein-induced skeletal muscle hypertrophy. The results suggest that dietary Alaska pollack protein increases the gastrocnemius muscle mass, regardless of specific amino acids including arginine and leucine, which are suggested to increase skeletal muscle mass and amino acid balance in the diet. The oral administration of 333 mg/kg/day Alaska pollack protein significantly increased gastrocnemius muscle weight compared with the oral administration of casein. In this case, the amino acid intake was expected to be almost the same as in the casein group because Alaska pollack protein made up approximately 1/60 of the protein consumed per day. The specific protein or the specific hydrolyzed peptides from Alaska pollack protein or other minor components in Alaska pollack protein may be responsible for gastrocnemius muscle weight hypertrophy.
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