Fuller M F, Chen C H
Rowett Research Institute, Bucksburn Aberdeen, UK.
Z Ernahrungswiss. 1997 Dec;36(4):332-5. doi: 10.1007/BF01617817.
Lean tissue growth occurs when the rate of protein synthesis exceeds the rate of protein breakdown. Although absolute rates of protein synthesis and breakdown rise during growth from birth to maturity fractional rates fall. Both these processes are sensitive to nutrient intake but responses to feeding vary greatly amongst different tissues. Protein, carbohydrate and fat can all stimulate body protein accretion in immature animals and in children but the mechanisms by which they do so, and the energy expenditures involved, seem to be different.
当蛋白质合成速率超过蛋白质分解速率时，瘦组织就会生长。从出生到成熟的生长过程中，虽然蛋白质合成和分解的绝对速率会上升，但分数速率会下降。这两个过程都对营养摄入敏感，但不同组织对进食的反应差异很大。蛋白质、碳水化合物和脂肪都能刺激未成熟动物和儿童体内蛋白质的积聚，但它们这样做的机制以及所涉及的能量消耗似乎有所不同。
