Similar effects of roux-en-Y gastric bypass and vertical sleeve gastrectomy on glucose regulation in rats.

Journal Article (Journal Article)

Bariatric surgery is the most efficacious procedure for eliciting weight loss in humans, and many patients undergoing the procedure experience significant lessening of their symptoms of type-2 diabetes in addition to losing weight. We have adapted two bariatric surgical procedures commonly employed in humans to a rat model to begin to understand the mechanisms underlying the improvements in energy homeostasis. Young adult male rats received either roux-en-Y gastric bypass (RYGB) or vertical sleeve gastrectomy (VSG) and were assessed for body weight, food intake and parameters of glucose homeostasis over a 28-week period. Control rats received either a sham surgical procedure or else were unoperated. RYGB and VSG had comparable beneficial effects relative to controls. They ate less food and lost more weight, and they both had improved glucose parameters. The most intriguing aspect of the findings is that the two surgical procedures had such similar effects in spite of quite different rearrangements of the gastrointestinal system.

Full Text

Duke Authors

Cited Authors

  • Chambers, AP; Stefater, MA; Wilson-Perez, HE; Jessen, L; Sisley, S; Ryan, KK; Gaitonde, S; Sorrell, JE; Toure, M; Berger, J; D'Alessio, DA; Sandoval, DA; Seeley, RJ; Woods, SC

Published Date

  • November 30, 2011

Published In

Volume / Issue

  • 105 / 1

Start / End Page

  • 120 - 123

PubMed ID

  • 21683726

Pubmed Central ID

  • PMC3852684

Electronic International Standard Serial Number (EISSN)

  • 1873-507X

Digital Object Identifier (DOI)

  • 10.1016/j.physbeh.2011.05.026


  • eng

Conference Location

  • United States