Serum fasting GLP-1 and GLP-2 associate with intestinal adaptation in pediatric onset intestinal failure

Aim: Glukagon-like-peptide-1 (GLP-1) and -2 (GLP-2), produced by intestinal L-cells, are key hormones regulating intestinal transit, secretion, absorption, and mucosal growth. We evaluated nai ve fasting serum GLP-1 and GLP-2 levels in pediatric intestinal failure (IF). Methods: Fifty-five IF patients with median age 4.2 (IQR 1.3-12) years and 47 matched healthy controls underwent measurement of fasting serum GLP-1 and GLP-2. Results: Serum GLP-2 [19.9 (13.8-27.9) vs 11.6 (7.0-18.6) ng/mL, P < 0.001], but not GLP-1 [6.1 (4.0-15.7) vs 6.4 (3.9-10.7) ng/mL, P = 0.976], levels were increased in IF patients. Serum GLP-2 concentrations were higher in patients with small bowel -colic continuity [21.1 (15.0-30.7) ng/mL] compared to patients with an endostomy [10.4 (6.6-17.9) ng/mL, P = 0.028], whereas no association with preservation of ileum or ileocecal valve was observed. During PN delivery, GLP-2 inversely associated with remaining small bowel length (r = -0.500, P = 0.041) and frequency of PN infusions (r = -0.549, P = 0.042). Serum GLP-1 levels were lower in patients receiving PN currently [4.1 (2.8-5.1)] compared to patients, who had weaned off PN [6.5 (5.1-21.1), P = 0.005],. and correlated positively with duration of PN (r = -0.763, P = 0.002) and negatively with percentage parenteral energy requirement (r = -0.716, P = 0.006). Conclusions: In pediatric IF, serum GLP-2 levels increase in patients with small bowel -colic continuity proportionally to the length of resected small intestine. Increase in serum GLP-1 and GLP-2 levels paralleled reducing requirement for parenteral support. These findings support regulation of intestinal adaption by GLP-2 and GLP-1 in children with IF. (C) 2016 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.