Bariatric surgery and T2DM improvement mechanisms: a mathematical model.

Theoretical Biology & Medical Modelling
Puntip ToghawAndrea De Gaetano

Abstract

Consensus exists that several bariatric surgery procedures produce a rapid improvement of glucose homeostasis in obese diabetic patients, improvement apparently uncorrelated with the degree of eventual weight loss after surgery. Several hypotheses have been suggested to account for these results: among these, the anti-incretin, the ghrelin and the lower-intestinal dumping hypotheses have been discussed in the literature. Since no clear-cut experimental results are so far available to confirm or disprove any of these hypotheses, in the present work a mathematical model of the glucose-insulin-incretin system has been built, capable of expressing these three postulated mechanisms. The model has been populated with critically evaluated parameter values from the literature, and simulations under the three scenarios have been compared. The modeling results seem to indicate that the suppression of ghrelin release is unlikely to determine major changes in short-term glucose control. The possible existence of an anti-incretin hormone would be supported if an experimental increase of GIP concentrations were evident post-surgery. Given that, on the contrary, collected evidence suggests that GIP concentrations decrease post-surgery, the lo...Continue Reading

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Citations

Oct 24, 2013·World Journal of Gastroenterology : WJG·Marco MiloneMario Musella
Jul 16, 2013·Theoretical Biology & Medical Modelling·Roland E AllenAbdelilah Arredouani
Jul 12, 2013·CPT: Pharmacometrics & Systems Pharmacology·I AjmeraV Chelliah
Jun 8, 2018·PLoS Computational Biology·Yvonne J W RozendaalNatal A W van Riel
Feb 9, 2018·PloS One·Cansu UlusekerCorrado Priami

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Methods Mentioned

BETA
gastric bypass

Software Mentioned

Matlab2010b®

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