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Region Hovedstaden - en del af Københavns Universitetshospital
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Gut hormones, early dumping and resting energy expenditure in patients with good and poor weight loss response after Roux-en-Y gastric bypass

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Objective:To identify factors contributing to the variation in weight loss after Roux-en-Y gastric bypass (RYGB).Design:Cross-sectional study of patients with good (excess body mass index lost (EBL) >60%) and poor weight loss response (EBL 12 months after RYGB and a lean control group matched for age and gender.Materials and methods:Sixteen patients with good weight loss response, 17 patients with poor weight loss response, and eight control subjects were included in the study. Participants underwent dual energy X-ray absorptiometry scan, indirect calorimetry and a 9 h multiple-meal test with measurements of glucose, insulin, total bile acids (TBA), glucagon-like peptide (GLP)-1, peptide YY3-36 (PYY), cholecystokinin (CCK), ghrelin, neurotensin and pancreatic polypeptide (PP) as well as assessment of early dumping and appetite.Results:Suppression of hunger was more pronounced in the good than the poor responders in response to the multiple-meal test (P=0.006). In addition, the good responders had a larger release of GLP-1 (P=0.009) and a greater suppression of ghrelin (P=0.037) during the test, whereas the postprandial secretion of CCK was highest in the poor responders (P=0.005). PYY, neurotensin, PP and TBA release did not differ between the RYGB-operated groups. Compared with control subjects, patients had exaggerated release of GLP-1 (P
OriginalsprogEngelsk
TidsskriftInternational journal of obesity (2005)
Vol/bind37
Udgave nummer11
Sider (fra-til)1452-9
Antal sider8
ISSN0307-0565
DOI
StatusUdgivet - nov. 2013

ID: 41955418