Ponnie Robertlee Dolo, MD, Libin Yao, MD, PhD, Chao Li, MD, Xiaocheng Zhu, FACS, Linsen Shi, MD, Jason Widjaja, MD. The Affiliated Hospital of Xuzhou Medical University
Background: Possible mechanisms underlying diabetes remission following Roux-en-Y gastric bypass (RYGB) include eradication of putative factor(s) with Duodenal-jejunal bypass.
Objective: To observe the effects of Duodenal-jejunal transit on glucose tolerance and diabetes remission in gastric bypass rat model.
Method: In order to verify the effect of Duodenal-jejunal transit on glucose tolerance and diabetes remission in gastric bypass, twenty-two type-2 diabetes Sprague-Dawley rat model established through high fat diet and low dose Streptozotocin (STZ) administered intraperitoneally were assigned to one of three groups: Gastric Bypass with duodenal-jejunal Transit (GB-DJT n=8), Gastric Bypass without duodenal-jejunal transit (RYGB n=8) and SHAM (n=6). Body weight, food intake, blood glucose, as well as meal-stimulated insulin, and Incretin hormones responses were assess to ascertain the effect of surgery in all groups. Oral Glucose Tolerance Test (OGTT) and Insulin Tolerance Test (ITT) were conducted three and seven weeks after surgery.
Results: Comparing our GB-DJT to the RYGB group, we saw no differences in the mean decline in bodyweight, food intake, and blood glucose 8-weeks after surgery. GB-DJT group exhibited immediate and sustained glucose control throughout the study. GLP-1 and GIP levels were also significantly increased from preoperative level in the GB-DJT group (p<0.05). Insulin and GLP-1 Area Under Curve (AUC) as well as Improved Glycemic excursion on OGTT did not differ between GB-DJT and RYGB groups. Outcomes with Sham operation did not differ from preoperative level.
Conclusion: Preserving Duodenal-jejunal transit does not impede glucose tolerance and diabetes remission after gastric bypass in Type-2 diabetes Sprague-Dawley rat model.
Presented at the SAGES 2017 Annual Meeting in Houston, TX.
Abstract ID: 86104
Program Number: P624
Presentation Session: iPoster Session (Non CME)
Presentation Type: Poster
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