Effects of duodenal-jejunal exclusion on beta cell function and hormonal regulation in Goto-Kakizaki rats

American Journal of Surgery
Daniel Antonio de LuisRosa Conde

Abstract

The aim of our work was to investigate the hormones that control glycemic status and in vitro β-cell function in diabetes mellitus after a duodenal-jejunal exclusion in Goto-Kakizaki rats (Taconic, Denmark). Twenty-three rats (age, 12-14 wk) were randomized as follows: group 1 (n = 14), no intervention (control); or group 2 (n = 9), duodenal-jejunal exclusion. In group 2, levels of glucagon and leptin were lower than in group 1 at 1 week and at 8 weeks. Glucagon-like peptide 1 levels had a significant increase at 8 weeks from basal value in group 2 and this value was higher than in group 1. The insulin secretion at 60 minutes in group 2 was higher than in group 1 (group 1, 12.9 ± 12.0 μg/L vs group 2, 41.9 ± 36.3 μg/L; P < .05). Messenger RNA (mRNA) expression of insulin at 2 months was higher in the rat pancreas of the experimental group than in the control group (group 1, .99 ± .48 mRNA amount vs group 2, 1.66 ± .33 mRNA amount; P < .05). Gastrojejunal bypass in this model improves glucose ratios, with a significant increase of glucagon-like peptide 1 and decrease of homeostasis model assessment, glucagon, and leptin levels after surgery. This type of surgery improves mRNA insulin expression in pancreatic islets and insulin s...Continue Reading

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References

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May 10, 2001·Lancet·J H PinkneyE A Gale
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Citations

Jun 8, 2012·Nature Medicine·David A SarrufMichael W Schwartz
May 12, 2015·Diabetes/metabolism Research and Reviews·Yinjie SuChaojun Zhang
Aug 14, 2012·Gastroenterology·David BradleySamuel Klein
Apr 15, 2015·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·Jun PakRaul J Rosenthal
Nov 29, 2016·Critical Reviews in Food Science and Nutrition·Giovanna MuscogiuriAnnamaria Colao
Sep 20, 2018·Laboratory Animals·Elina AkalestouFrancesco Rubino

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