PMID- 35361540 OWN - NLM STAT- MEDLINE DCOM- 20220608 LR - 20230602 IS - 1878-7533 (Electronic) IS - 1550-7289 (Print) IS - 1550-7289 (Linking) VI - 18 IP - 6 DP - 2022 Jun TI - Measures of glucose homeostasis during and after duodenal exclusion using a duodenal-jejunal bypass liner in a normoglycemic, nonobese canine model. PG - 694-702 LID - S1550-7289(22)00082-X [pii] LID - 10.1016/j.soard.2022.02.012 [doi] AB - BACKGROUND: Discovering the role duodenal exclusion plays in weight loss and resolution of type 2 diabetes (T2D) may help refine the surgical and nonsurgical treatment of obesity and T2D. OBJECTIVES: To assess changes in glucose homeostasis due to duodenal exclusion using a duodenal-jejunal bypass liner (DJBL) in a nonobese canine model. SETTING: Academic laboratory setting. METHODS: An intravenous glucose tolerance test (IVGTT), and a mixed-meal tolerance test (MMTT) at baseline, 1, and 6 weeks post DJBL implantation (I1 and I6, respectively), and 1 and 6 weeks post DJBL removal (R1 and R6, respectively) were done in canines (n = 7) fed a normal chow diet. RESULTS: Placement of the DJBL induced weight loss that was maintained until 4 weeks post removal (R4), despite normal food intake. Total bile acids (TBA) and glucagon-like peptide-1 (GLP-1) during the MMTT were significantly increased at I1 and were associated with increased lactate and free fatty acids. Hypoglycemia counter-regulation was blunted during the IVGTT at I1 and I6, returning to baseline at R1. While there were no changes to insulin sensitivity during the experiment, glucose tolerance was significantly increased following the removal of the DJBL at R1. CONCLUSION: These data show that in a normoglycemic, nonobese canine model, duodenal exclusion induces energy intake-independent weight loss and negative metabolic effects that are reversed following re-exposure of the small intestine to nutrients. CI - Copyright (c) 2022 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved. FAU - Paszkiewicz, Rebecca L AU - Paszkiewicz RL AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. Electronic address: rpaszkiewicz@mednet.ucla.edu. FAU - Burch, Miguel A AU - Burch MA AD - Minimally Invasive and GI Surgery, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Asare Bediako, Isaac AU - Asare Bediako I AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Mkrtchyan, Hasmik AU - Mkrtchyan H AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Piccinini, Francesca AU - Piccinini F AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Ader, Marilyn AU - Ader M AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Bresee, Catherine AU - Bresee C AD - Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California. FAU - Bergman, Richard N AU - Bergman RN AD - Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Los Angeles, California. LA - eng GR - R01 DK027619/DK/NIDDK NIH HHS/United States GR - R01 DK029867/DK/NIDDK NIH HHS/United States PT - Journal Article DEP - 20220222 PL - United States TA - Surg Obes Relat Dis JT - Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery JID - 101233161 RN - 0 (Blood Glucose) RN - IY9XDZ35W2 (Glucose) SB - IM CIN - Surg Obes Relat Dis. 2022 Jun;18(6):702-703. PMID: 35469756 MH - Animals MH - *Bariatric Surgery MH - Blood Glucose/metabolism MH - *Diabetes Mellitus, Type 2/surgery MH - Dogs MH - Duodenum/metabolism/surgery MH - Glucose/metabolism MH - Homeostasis MH - Humans MH - Jejunum/metabolism/surgery MH - Treatment Outcome MH - Weight Loss PMC - PMC10013877 MID - NIHMS1793498 OTO - NOTNLM OT - Bariatric surgery OT - Duodenal exclusion OT - Duodenal-jejunal bypass liner OT - Obesity OT - Type 2 diabetes COIS- CONFLICTS OF INTEREST None. EDAT- 2022/04/02 06:00 MHDA- 2022/06/09 06:00 PMCR- 2023/06/01 CRDT- 2022/04/01 05:34 PHST- 2021/06/09 00:00 [received] PHST- 2022/01/31 00:00 [revised] PHST- 2022/02/11 00:00 [accepted] PHST- 2022/04/02 06:00 [pubmed] PHST- 2022/06/09 06:00 [medline] PHST- 2022/04/01 05:34 [entrez] PHST- 2023/06/01 00:00 [pmc-release] AID - S1550-7289(22)00082-X [pii] AID - 10.1016/j.soard.2022.02.012 [doi] PST - ppublish SO - Surg Obes Relat Dis. 2022 Jun;18(6):694-702. doi: 10.1016/j.soard.2022.02.012. Epub 2022 Feb 22.