BACKGROUND: Although weight loss has been implicated in anti-diabetic effects, sleeve gastrectomy (SG)-mediated anti-diabetic effects are induced through mechanisms beyond weight loss. Our aim was to investigate whether anti-diabetic effects can be achieved by surgically removing a smaller portion of the stomach instead of SG. METHODS: Male 11-week-old Goto-Kakizaki rats (N = 50) were randomized into five groups: sub-sleeve gastrectomy (SSG, only the gastric fundus is removed), SG, sham-operated SSG, sham-operated SG, and control. Body weight, food intake, hormone secretion, and glucose metabolism were measured up to 24 weeks after surgery. RESULTS: The data showed that (i) both SSG and SG surgeries significantly improved glucose homeostasis, with lower ghrelin levels and higher post-prandial glucagon-like peptide 1, peptide YY, and insulin levels; (ii) SG, but not SSG, produced sustained weight loss and significant reduction of food intake; and (iii) SG induced better long-term diabetic improvement than SSG. CONCLUSIONS: The SSG that only removed the gastric fundus exhibited significant diabetic improvement without weight loss, but did not induce long-term diabetic improvement comparable to that of SG. Our study helps to understand the role of hormones and weight loss in maintaining long-term diabetes improvement after SG.
BACKGROUND: Although weight loss has been implicated in anti-diabetic effects, sleeve gastrectomy (SG)-mediated anti-diabetic effects are induced through mechanisms beyond weight loss. Our aim was to investigate whether anti-diabetic effects can be achieved by surgically removing a smaller portion of the stomach instead of SG. METHODS: Male 11-week-old Goto-Kakizaki rats (N = 50) were randomized into five groups: sub-sleeve gastrectomy (SSG, only the gastric fundus is removed), SG, sham-operated SSG, sham-operated SG, and control. Body weight, food intake, hormone secretion, and glucose metabolism were measured up to 24 weeks after surgery. RESULTS: The data showed that (i) both SSG and SG surgeries significantly improved glucose homeostasis, with lower ghrelin levels and higher post-prandial glucagon-like peptide 1, peptide YY, and insulin levels; (ii) SG, but not SSG, produced sustained weight loss and significant reduction of food intake; and (iii) SG induced better long-term diabetic improvement than SSG. CONCLUSIONS: The SSG that only removed the gastric fundus exhibited significant diabetic improvement without weight loss, but did not induce long-term diabetic improvement comparable to that of SG. Our study helps to understand the role of hormones and weight loss in maintaining long-term diabetes improvement after SG.
Authors: N Basso; D Capoccia; M Rizzello; F Abbatini; P Mariani; C Maglio; F Coccia; G Borgonuovo; M L De Luca; R Asprino; G Alessandri; G Casella; F Leonetti Journal: Surg Endosc Date: 2011-06-03 Impact factor: 4.584
Authors: Y Date; M Kojima; H Hosoda; A Sawaguchi; M S Mondal; T Suganuma; S Matsukura; K Kangawa; M Nakazato Journal: Endocrinology Date: 2000-11 Impact factor: 4.736
Authors: Rachel L Batterham; Michael A Cowley; Caroline J Small; Herbert Herzog; Mark A Cohen; Catherine L Dakin; Alison M Wren; Audrey E Brynes; Malcolm J Low; Mohammad A Ghatei; Roger D Cone; Stephen R Bloom Journal: Nature Date: 2002-08-08 Impact factor: 49.962
Authors: Tian Tian Wang; San Yuan Hu; Hai Dong Gao; Guang Yong Zhang; Chong Zhong Liu; Jin Bo Feng; Eldo E Frezza Journal: Ann Surg Date: 2008-06 Impact factor: 12.969