Evidence map›Paper›PMID 23732262›Full record

Trial reportAnnals of surgery2014

Effects of Roux-en-Y gastric bypass or diabetes support and education on insulin sensitivity and insulin secretion in morbidly obese patients with type 2 diabetes.

Chin Meng Khoo, Jiegen Chen, Zehra Pamuklar, Alfonso Torquati

Registry-linked trialAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Annals of surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00787670 (Impact of Gastric Bypass Surgery on Risk of CVD in Type 2 Diabetes Mellitus), which is not on this map. Cited by 13 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00787670 nacompletednot on this map

Impact of Gastric Bypass Surgery on Risk of CVD in Type 2 Diabetes Mellitus

TypeinterventionalSponsorDuke UniversityRan2008 to 2011Enrolled84ConditionsObesity, Type 2 Diabetes MellitusArmsDiabetes Support and Education, gastric bypass surgery, Tissue Control Group
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Article
  8. Article
  9. Review
  10. Improvement in insulin resistance after gastric bypass surgery is correlated with a decline in plasma 2-hydroxybutyric acid.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2018
    Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Chin Meng Khoo*Sarah W. Stedman Nutrition & Metabolism Center, Duke University Medical Center, Durham, NC †Department of Medicine, National University Health System, Singapore; and ‡Department of General Surgery, Duke University Medical Center, Durham, NC.
Jiegen Chen
Zehra Pamuklar
Alfonso Torquati

Funding

Impact of gastric bypass surgery on risk of CVD in type 2 diabetes mellitusK23DK075907 · NIDDK · VANDERBILT UNIVERSITY · PI TORQUATI, ALFONSO · 2006 to 2009
$594k
NIDDK NIH HHS K23 DK075907
6 · The paper itself

Abstract

objectiveThe long-term changes in insulin sensitivity and β-cell function in morbidly obese patients with type 2 diabetes mellitus who undergo Roux-en-Y gastric bypass (RYGB) surgery or standard medical care remain unclear. We prospectively studied longitudinal changes of glucostatic parameters in morbidly obese patients with type 2 diabetes mellitus undergoing RYGB surgery or diabetes support and education (DSE). RESEARCH METHODS AND

designSixty-one morbidly obese subjects (41.7 ± 0.6 kg/m) with type 2 diabetes mellitus were assigned to RYGB surgery (n = 30) or DSE (n = 31). They were matched for sex, age, and body weight. Insulin sensitivity index (Si) and acute insulin response (AIR) were derived from frequently sampled intravenous glucose tolerance test. Body composition was measured using dual-energy x-ray absorptiometry. General linear model with repeated measures was used to examine the longitudinal changes (baseline, 6 months, 12 months) in these parameters.

resultsAt 12-month follow-up, significant improvement in obesity measures, body composition, glucose homeostasis, Si, and AIR was observed after RYGB surgery and weight loss. These outcomes were not influenced by preoperative insulin use. Although there were no significant changes in the body composition among DSE subjects, they experienced a decline in the Si and AIR, along with an increase in fasting glucose and HbA1c. The between-group differences in Si and AIR at 12-month follow-up were completely attenuated with adjustment to changes in body weight.

conclusionsThe long-term effects of RYGB surgery on glucostatic parameters are partly dependent on weight loss. In morbidly obese patients with diabetes who were offered DSE, a progressive decline in the glucose homeostasis and glucostatic parameters is observed despite absence of weight gain. (NCT00787670).

Indexed as

Insulin ResistanceAbsorptiometry, PhotonBlood GlucoseBody CompositionDiabetes Mellitus, Type 2FemaleFollow-Up StudiesGastric BypassGlucose Tolerance TestHumansInsulinInsulin SecretionMaleMiddle AgedObesity, MorbidPatient Education as TopicBlood GlucoseInsulin

Identifiers

PMID23732262
PMCPMC3883916

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.