High-Protein Diet Improves Postoperative Weight Gain After Massive Small-Bowel Resection

Raphael C. Sun, Pamela M. Choi, Jose Diaz-Miron, Joshua Sommovilla, Jun Guo, Christopher R. Erwin, Brad W. Warner

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Introduction: Short bowel syndrome (SBS) is a morbid clinical condition that results from massive small-bowel resection (SBR). After SBR, there is a dramatic weight loss in the acute postoperative period. Our aim was to determine the impact of a high-protein diet (HPD) on weight gain and body composition in mice after SBR.

Results: Mice that were fed HPD after SBR returned to baseline weight on average at postoperative day (POD) 8 versus mice that were fed LD that returned to baseline weight on average at POD 22. Total fat mass and lean mass were significantly greater by POD 14 within the HPD group. Both groups of mice demonstrated normal structural adaptation.

Methods: C57BL/6 mice underwent 50 % proximal SBR. Postoperatively, mice were randomly selected to receive standard rodent liquid diet (LD) (n = 6) or an isocaloric HPD (n = 9) for 28 days. Mice weights were recorded daily. Body composition analyses were obtained weekly. Student’s t test was used for statistical comparisons with p < 0.05 considered significant.

Conclusion: HPD results in greater weight gain and improved body composition in mice after SBR. This finding may be clinically important for patients with SBS since improved weight gain may reduce the time needed for parenteral nutrition.

Original languageEnglish
Pages (from-to)451-457
Number of pages7
JournalJournal of Gastrointestinal Surgery
Volume19
Issue number3
DOIs
StatePublished - Jan 1 2015

Keywords

  • High-protein diet
  • Intestinal adaptation
  • PEPT1
  • Short gut syndrome

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