Document Detail


Remission of type 2 diabetes after gastric bypass and banding: mechanisms and 2 year outcomes.
MedLine Citation:
PMID:  21107106     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To investigate the rate of type 2 diabetes remission after gastric bypass and banding and establish the mechanism leading to remission of type 2 diabetes after bariatric surgery.
SUMMARY BACKGROUND DATA: Glycemic control in type 2 diabetic patients is improved after bariatric surgery.
METHODS: In study 1, 34 obese type 2 diabetic patients undergoing either gastric bypass or gastric banding were followed up for 36 months. Remission of diabetes was defined as patients not requiring hypoglycemic medication, fasting glucose below 7 mmol/L, 2 hour glucose after oral glucose tolerance test below 11.1 mmol/L, and glycated haemoglobin (HbA1c) <6%. In study 2, 41 obese type 2 diabetic patients undergoing either bypass, banding, or very low calorie diet were followed up for 42 days. Insulin resistance (HOMA-IR), insulin production, and glucagon-like peptide 1 (GLP-1) responses after a standard meal were measured.
RESULTS: In study 1, HbA1c as a marker of glycemic control improved by 2.9% after gastric bypass and 1.9% after gastric banding at latest follow-up (P < 0.001 for both groups). Despite similar weight loss, 72% (16/22) of bypass and 17% (2/12) of banding patients (P = 0.001) fulfilled the definition of remission at latest follow-up. In study 2, within days, only bypass patients had improved insulin resistance, insulin production, and GLP-1 responses (all P < 0.05).
CONCLUSIONS: With gastric bypass, type 2 diabetes can be improved and even rapidly put into a state of remission irrespective of weight loss. Improved insulin resistance within the first week after surgery remains unexplained, but increased insulin production in the first week after surgery may be explained by the enhanced postprandial GLP-1 responses.
Authors:
Dimitrios J Pournaras; Alan Osborne; Simon C Hawkins; Royce P Vincent; David Mahon; Paul Ewings; Mohammad A Ghatei; Stephen R Bloom; Richard Welbourn; Carel W le Roux
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of surgery     Volume:  252     ISSN:  1528-1140     ISO Abbreviation:  Ann. Surg.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-25     Completed Date:  2010-12-31     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372354     Medline TA:  Ann Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  966-71     Citation Subset:  AIM; IM    
Affiliation:
Department of Bariatric Surgery, Musgrove Park Hospital, Taunton, Somerset, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Glucose
Diabetes Mellitus, Type 2 / blood,  complications,  surgery*
Gastric Bypass*
Gastroplasty*
Hemoglobin A, Glycosylated
Humans
Middle Aged
Obesity, Morbid / complications,  surgery*
Remission Induction
Treatment Outcome
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Hemoglobin A, Glycosylated; 0/hemoglobin A1c protein, human

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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