Twenty-four-hour energy and nutrient balance in weight stable postobese patients after biliopancreatic diversion

被引:36
作者
Tataranni, PA
Mingrone, G
Raguso, CA
DeGaetano, A
Tacchino, RM
Castagneto, M
Greco, AV
机构
[1] UNIV CATTOLICA SACRO CUORE, DEPT INTERNAL MED, I-00168 ROME, ITALY
[2] UNIV CATTOLICA SACRO CUORE, CNR, NATL RES CTR, I-00168 ROME, ITALY
[3] UNIV CATTOLICA SACRO CUORE, CNR, DEPT GEN SURG, I-00168 ROME, ITALY
关键词
energy balance; nutrient balance; postobese subjects; biliopancreatic diversion; respiratory chamber;
D O I
10.1016/S0899-9007(96)90849-7
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
To better understand the long-term weight stability of postobese patients who underwent biliopancreatic diversion (BPD), we studied 24-h energy and nutrient balance in eight women at least 3 yr after surgery (PO) and compared the results to those obtained in eight normal never-obese control women ((:), matched by age and weight. Body composition was measured by dual-energy x-ray absorptiometry (DXA). All the patients were on an ad libitum diet; 24-h energy and nutrient intake were measured on the experimental day. Twenty-four-hour energy expenditure (EE) and 24-h nutrient oxidation rates were measured in a respiratory chamber, and energy and nutrient balances were calculated after correcting for 24-h fecal nutrient loss. No differences in body composition were found between PO and C. PO had a higher gross energy intake than C (10.6 +/- 3.4 vs. 8.0 +/- 2.2 MJ/d; p < 0.05); however, due to the higher energy fecal loss in PO as compared to C (2.4 +/- 1.3 vs. 0.09 +/- 0.01 MJ/day; p < 0.01), 24-h metabolizable energy intake (MEI) was not different in the two groups. The energy fecal loss in the PO patients was mostly in the form of lipid. EE at 24 h was not different in PO as compared to C. Therefore energy balance, computed as the difference between 24-h MEI and 24-h EE, was similar in the two groups. Respiratory quotient was significantly higher in PO than in C (1.00 +/- 0.08 vs. 0.83 +/- 0.03; p < 0.01). Carbohydrate (-135 +/- 37 g/d in PO vs. 63 +/- 23 g/d in C; p < 0.001), and lipid (48 +/- 14 g/d in PO vs. -23 +/- 6 g/d in C; p < 0.001) balances were different in the two groups. We conclude that chronic lipid malabsorption was the main metabolic abnormality explaining the achievement of energy balance in postobese subjects after biliopancreatic diversion. A chronic reduction of lipid absorption seems to play a key role in the long-term weight stability of this group of postobese subjects.
引用
收藏
页码:239 / 244
页数:6
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