Abstract
Background:
Short-bowel syndrome (SBS) is the most common cause of neonatal intestinal failure. Recovery requires intestinal adaptation, dependent on enteral nutrition (EN) and growth factors such as glucagon-like peptide–2 (GLP-2), which is secreted from L cells in the ileum. Neonatal SBS often results in loss of ileum; therefore, we hypothesized that without ileum, endogenous GLP-2 production would be inadequate to promote adaptation. We compared endogenous GLP-2 production and adaptation in neonatal animals with SBS, with and without ileum.
Methods:
Neonatal piglets (4–6 d) were randomized to 75% mid-intestinal resection, 75% distal-intestinal resection, or sham control without resection. Postoperatively, all piglets commenced parenteral nutrition (PN), tapering as EN was increased to maintain specific growth.
Results:
The resected SBS piglets developed intestinal failure, requiring a longer duration of PN support and experiencing fat malabsorption. The piglets without ileum were not able to wean from PN during the study and did not show adaptation, specifically growth in intestinal length or crypt hyperplasia on histology of the jejunum. Adaptation was observed in the resected SBS piglets with ileum, and these piglets also had an increased plasma GLP-2 level that was not observed in piglets without ileum.
Conclusion:
SBS piglets with ileum undergo adaptation associated with increased endogenous GLP-2 production. SBS piglets without ileum undergo limited adaptation and severe intestinal failure, requiring prolonged PN support. This appears to be related to a deficiency in endogenous GLP-2 production.
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Acknowledgements
The authors acknowledge the assistance of Rhian Ormond, Christine Pendlebury, Charlane Gorsak, and all the staff of the Swine Research and Technology Center.
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Hua, Z., Turner, J., Sigalet, D. et al. Role of glucagon-like peptide–2 deficiency in neonatal short-bowel syndrome using neonatal piglets. Pediatr Res 73, 742–749 (2013). https://doi.org/10.1038/pr.2013.44
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DOI: https://doi.org/10.1038/pr.2013.44
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