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- W2009149020 abstract "Objective. Biochemical markers for bone resorption (s-CTX) are reduced by food intake, whereas markers for bone formation seem to be unaffected by meal status. Glucagon-like peptide-2 (GLP-2) is a peptide secreted from endocrine L cells in the intestinal mucosa in relation to food-intake. Subcutaneous GLP-2 treatment has been shown to reduce bone resorption in postmenopausal women. The objective of this study was to investigate the ability of exogenous GLP-2 to reduce bone resorption in patients with jejunostomy or ileostomy and to elucidate whether an intact gastrointestinal tract and the ability to secrete GLP-2 are required for meal-induced inhibition of bone resorption. Material and methods. Fifteen control subjects, 13 colectomized patients with an ileostomy and 12 colectomized patients with a jejunostomy (remnant small bowel 89±53 cm) were given: a) a subcutaneous injection of 1600 µg GLP-2, b) placebo and c) 3.8 MJ of a breakfast meal. Blood was sampled for measurements of s-CTX, s-osteocalcin and GLP-2 for 4 h after each intervention. Results. After the GLP-2 injection, only control subjects showed a significant reduction in s-CTX (24%±13%, p=0.05, 120 min) compared with baseline values. Patients with an ileostomy had a preserved endogenous postprandial GLP-2 secretion, which was absent in patients with a jejunostomy. Consumption of a meal reduced s-CTX in all groups but significantly less so in the jejunostomy group. Conclusions. Reductions in bone resorption by exogenous GLP-2 require an intact gastrointestinal tract. The decreased meal-induced inhibition of bone resorption in the jejunostomy patients, who lack a GLP-2 response, supports the view that GLP-2 plays a role in postprandial reduction in bone resorption." @default.
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- W2009149020 date "2008-01-01" @default.
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- W2009149020 title "Reduction in bone resorption by exogenous glucagon-like peptide-2 administration requires an intact gastrointestinal tract" @default.
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- W2009149020 doi "https://doi.org/10.1080/00365520801965381" @default.
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