Evidence map›Paper›PMID 18080107›Full record

Trial reportDiabetologia2008

Loss of 50% of excess weight using a very low energy diet improves insulin-stimulated glucose disposal and skeletal muscle insulin signalling in obese insulin-treated type 2 diabetic patients.

I M Jazet, G Schaart, A Gastaldelli, E Ferrannini, M K Hesselink, P Schrauwen, J A Romijn, J A Maassen, H Pijl, D M Ouwens and 1 more

Open access · bronzeAbstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Diabetologia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. The Roles of Post-Translational Modifications on mTOR Signaling.International journal of molecular sciences · 2021
    Review
  12. Article
  13. Article
  14. The PI3K/AKT pathway in obesity and type 2 diabetes.International journal of biological sciences · 2018
    Review
  15. Review
  16. Article
  17. Article
  18. The Flexibility of Ectopic Lipids.International journal of molecular sciences · 2016
    Review
  19. Review
  20. Calorie restriction leads to greater Akt2 activity and glucose uptake by insulin-stimulated skeletal muscle from old rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    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

11 authors at 5 institutions in 2 countries.

I M JazetDepartment of General Internal Medicine, C4-r-73, Leiden University Medical Centre, P.O. Box 9600, 2300 RC Leiden, The Netherlands. i.m.jazet@lumc.nl
G Schaart
A Gastaldelli
E Ferrannini
M K Hesselink
P Schrauwen
J A Romijn
J A Maassen
H Pijl
D M Ouwens
A E Meinders
Leiden University Medical Center · NLMaastricht University · NLIstituto di Fisiologia Clinica · ITLeiden University · NLUniversity of Pisa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisBoth energy restriction (ER) per se and weight loss improve glucose metabolism in obese insulin-treated type 2 diabetic patients. Short-term ER decreases basal endogenous glucose production (EGP) but not glucose disposal. In contrast the blood glucose-lowering mechanism of long-term ER with substantial weight loss has not been fully elucidated. The aim of this study was to investigate the effect of loss of 50% of excess weight [50% excess weight reduction (EWR)] on EGP, whole-body insulin sensitivity and the disturbed myocellular insulin-signalling pathway in ten obese insulin-treated type 2 diabetic patients.

methodsA euglycaemic-hyperinsulinaemic clamp with stable isotopes ([6,6-(2)H2]glucose and [2H5]glycerol) combined with skeletal muscle biopsies was performed during a very low energy diet (VLED; 1,883 kJ/day) on day 2 and again after 50% EWR. Oral blood glucose-lowering agents and insulin were discontinued 3 weeks prior to the VLED and at the start of the VLED, respectively.

resultsLoss of 50% EWR (20.3+/-2.2 kg from day 2 to day of 50% EWR) normalised basal EGP and improved insulin sensitivity, especially insulin-stimulated glucose disposal (18.8+/-2.0 to 39.1+/-2.8 micromol kg fat-free mass(-1) min(-1), p=0.001). The latter was accompanied by improved insulin signalling at the level of the recently discovered protein kinase B/Akt substrates AS160 and PRAS40 along with a decrease in intramyocellular lipid (IMCL) content. CONCLUSIONS/

interpretationConsiderable weight loss in obese, insulin-treated type 2 diabetic patients normalises basal EGP and improves insulin sensitivity resulting from an improvement in insulin signal transduction in skeletal muscle. The decrease in IMCL might contribute to this effect.

Indexed as

Diet, ReducingBlood GlucoseBody CompositionBody WeightDiabetes Mellitus, Type 2FemaleGlucose Clamp TechniqueHumansHypoglycemic AgentsInsulinMaleMiddle AgedMuscle, SkeletalObesityOverweightSignal TransductionBlood GlucoseHypoglycemic AgentsInsulin

Identifiers

PMID18080107
OpenAlexW2011094582

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.