Energy balance and metabolic rate in preterm infants fed with standard and high-energy formulas
Energy balance and metabolic rate in preterm infants fed with standard and high-energy formulas
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标准和高能量配方奶粉喂养的早产儿的能量平衡和代谢率
DOI：
10.1079/bjn19800005
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发表时间：
1980
影响因子：
3.6
通讯作者：
O. Brooke
中科院分区：
文献类型：
--
作者：
O. Brooke
1.对16名低出生体重早产儿在7-10 d期间使用标准低溶质婴儿配方奶粉（2600 kJ/l）和4种高能量配方奶粉（提供高达3760 kJ/l的不同能量密度）进行能量平衡。在两种高能量配方中，额外的脂肪能量由花生油提供，而在另外两种配方中，则由中链甘油三酯（MCT）提供。人体测量和代谢率（MR）的测定进行了平衡期间。2.标准配方的平均能量保留率为摄入量的66%，而提供最高能量的两种饲料的平均能量保留率下降至50%以下。标准配方的大量能量平衡数据可供参考。3.所有高能量配方的日粮能量净吸收量均增加，从标准配方的362 kJ/kg/d增加到最高能量配方的453 kJ/kg/d（P < 0.001）。使用MCT没有优势。4.膳食能量的净吸收随着成熟度的提高而提高，与配方无关。5.尽管增加了膳食能量保留，但在用高能量配方喂养期间，生长率没有增加。6.在最高能量饲料中，空腹和餐后MR分别增加了10.4%和12.8%。7.它的结论是，至少在短期内，这种类型的高能量喂养增加MR的增长为代价，因此可能是没有优势的婴儿。
1. Energy balances were performed on sixteen low birth weight preterm infants over 7–10 d periods on a standard low-solute infant formula (2600 kJ/l), and on four high-energy formulas, providing different energy densities up to 3760 kJ/l. In two of the high-energy formulas the additional fat energy was provided by peanut oil, and in the other two by medium chain triglycerides (MCT). Anthropometric measurements and metabolic rate (MR) determinations were made during the balance periods. 2. Mean energy retention on the standard formula was 66% of the intake and declined to below 50% on the two feeds providing the highest energy. Extensive energy balance data on the standard formula are available for reference. 3. Net absorption of dietary energy increased on all the high-energy formulas, rising from 362 kJ/kg per d on the standard formula to 453 kJ/kg per d on the highest energy-formula (P < 0.001). There was no advantage in using MCT. 4. Net absorption of dietary energy improved with advancing maturity, irrespective of the formula. 5. In spite of the increased dietary energy retention, there was no increase in growth rate during periods of feeding with the high-energy formulas. 6. Fasting and postprandial MR increased by 10.4 and 12.8% respectively on the highest energy feeds. 7. It is concluded that, at least in the short term, this type of high-energy feeding increases MR at the expense of growth and thus is probably of no advantage to the infant.