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Obesity Surgery

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01-04-2016 | New Concept

Preliminary Results of the Influence of Duodenojejunal Bypass in a Porcine Model of Streptozotocin-Induced Diabetes Mellitus

Authors: S. Hiridis, K. Konstantinidis, E. Menenakos, Th. Diamantis, A. Papalois, G. Zografos

Published in: Obesity Surgery | Issue 4/2016

Abstract

Background

Type 2 diabetic obese patients present with a normalization of plasma glucose levels shortly after most bariatric procedures, before any significant weight loss takes place. There is only scarce literature in the new field of metabolic surgery, with most experiments being performed on small animal models.

Aim

Our aim is to develop a reliable large animal model for assessment of surgical correction of diabetes.

Method

Titrated doses of streptozotocin (STZ) were used for induction of diabetes mellitus. After standardization of the surgical technique to avoid any restrictive component, three groups were created, a duodenojejunal bypass (DJB; n = 4), a gastroileal conduit (GIC; n = 3) near the ileocecal valve, and a sham (control; n = 5) group. Preoperative and postoperative glycemic curves were recorded by means of intravenous glucose tolerance tests. Body weight fluctuations were recorded as well.

Results

Diabetes was successfully induced with the use of STZ in all cases. Animals in the sham group remained diabetic for 3 weeks after operation. There was normalization of blood glucose levels in the operative groups during the 3-week postoperative follow-up, without significant body weight changes. The duodenojejunal group resulted in stronger positive response of glycemia.

Conclusion

STZ-induced diabetes in swine leads to a reliable large animal model for assessment of metabolic surgical procedures. STZ is an effective but highly toxic means for inducing stable diabetes in the sensitive porcine model. Duodenojejunal bypass, although less invasive, seems to exert better antidiabetic effects than gastroileal conduit.

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Title: Preliminary Results of the Influence of Duodenojejunal Bypass in a Porcine Model of Streptozotocin-Induced Diabetes Mellitus
Authors: S. Hiridis
K. Konstantinidis
E. Menenakos
Th. Diamantis
A. Papalois
G. Zografos
Publication date: 01-04-2016
Publisher: Springer US
Published in: Obesity Surgery / Issue 4/2016
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI: https://doi.org/10.1007/s11695-016-2086-3

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Preliminary Results of the Influence of Duodenojejunal Bypass in a Porcine Model of Streptozotocin-Induced Diabetes Mellitus

Abstract

Background

Aim

Method

Results

Conclusion

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Background

Aim

Method

Results

Conclusion

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