Trial reportThe Journal of clinical endocrinology and metabolism2005

Rosiglitazone treatment increases subcutaneous adipose tissue glucose uptake in parallel with perfusion in patients with type 2 diabetes: a double-blind, randomized study with metformin.

Antti P M Viljanen, Kirsi A Virtanen, Mikko J Järvisalo, Kirsti Hällsten, Riitta Parkkola, Tapani Rönnemaa, Fredrik Lönnqvist, Patricia Iozzo, Ele Ferrannini, Pirjo Nuutila

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2005. The graph read 3 numbers from its abstract, feeding 2 cells of the map: it . Cited by 9 papers, 3 of them syntheses that pooled it.

3numbers the graph read from it
1cell of the map it votes in
9citing papers in PubMed, 3 pooled it
1.3field-weighted citation impact, top 22% 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.

← favours the treatmentfavours the comparator →
-18.072.00 · no effect
Glycemic controlfavours the treatment · head-to-head · obesity, t2dfeeds one cell of the map
decrease -18.0P < 0.05
Rosiglitazone treatment increased flow by 72% (P < 0.01) and GU by 23% (P < 0.05) and thereby decreased adipose tissue glucose extraction by 18% (P < 0.05); no changes were observed in the metformin or placebo-treated groups.
Glycemic controlfavours the comparator · head-to-head · obesity, t2dfeeds one cell of the map
treatment increase 72.0P < 0.01
Rosiglitazone treatment increased flow by 72% (P < 0.01) and GU by 23% (P < 0.05) and thereby decreased adipose tissue glucose extraction by 18% (P < 0.05); no changes were observed in the metformin or placebo-treated groups.

Read, but not usablea number the graph found but could not read as for or against

Body weight & compositioncomparator not stated · obesity, t2dfeeds one cell of the map
treatment increase 73.0P < 0.01
When the adipose masses were taken into account, rosiglitazone treatment increased flow by 73% (P < 0.01) and GU by 24% (P < 0.05).

clause the extractor read what became the number

2 · Its place on the map

Where it lands on the map

Rows are treatments, columns are outcomes. The coloured squares are the cells this paper feeds, coloured by the vote it casts there. Click one to jump to what this paper adds to it.

supports the treatmentfavours the comparatorno clear differenceread, but no usable result
3 · What it changes

What it adds to each cell

For every cell the paper feeds: the belief in the claim with and without this paper, and this paper's estimate drawn against every other readable study in the cell. The ringed dot is this paper.

Thiazolidinediones×glycemic control

No readable resultOpen on the map →What to test next →

16 readable studies in this cell: 9 favour the treatment, 4 find no difference, 3 favour the comparator.

Belief with this paper
0.83established · 5 families support, 1 contradict · against placebo
Without itNot a counted family in this claim, so removing it changes nothing.
← favours the treatmentfavours the comparator →
0 · no effect
This paper · 2005
decrease -18.0
NCT00676338820 enrolled · 2008
Δ 0.10-0.15 to 0.35
NCT00839527685 enrolled · 2009
Δ 0.250.10 to 0.40
NCT00727857600 enrolled · 2007
Δ 0.840.50 to 1.18
NCT01076075427 enrolled · 2010
Δ -0.68-0.87 to -0.50
NCT00770653305 enrolled · 2007
Δ 0.16-0.02 to 0.33
NCT0158944577 enrolled · 2008
Δ -0.74-7.90 to 8.00
NCT0031865623 enrolled · 2005
Δ 5.02-0.32 to 10.4

Thiazolidinediones×body weight & composition

No readable resultOpen on the map →What to test next →

2 readable studies in this cell: 0 favour the treatment, 0 find no difference, 2 favour the comparator.

Belief with this paper
0.00contested · 0 families support, 1 contradict · against placebo
Without itNot a counted family in this claim, so removing it changes nothing.
← favours the comparatorfavours the treatment →
0 · no effect
NCT00676338820 enrolled · 2008
Δ -3.56-4.21 to -2.90

This paper's own estimate is on a different scale from the rest of the cell, so it is not drawn here.

4 · 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.

5 · Its place in the literature

Who cites it

9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Risk of fatal and nonfatal lactic acidosis with metformin use in type 2 diabetes mellitus.The Cochrane database of systematic reviews · 2010 · on this map
    Pooled it
  3. Rosiglitazone for type 2 diabetes mellitus.The Cochrane database of systematic reviews · 2007
    Pooled it
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
6 · The record

Corrections and comments

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

7 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Antti P M ViljanenPET Centre, Turku University Central Hospital, Turku, Finland.
Kirsi A Virtanen
Mikko J Järvisalo
Kirsti Hällsten
Riitta Parkkola
Tapani Rönnemaa
Fredrik Lönnqvist
Patricia Iozzo
Ele Ferrannini
Pirjo Nuutila
National Research Council · ITKarolinska Institutet · SEUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

8 · The paper itself

Abstract

The marked sentences are the ones the graph read a number from.

contextWe have shown that rosiglitazone increases whole-body and adipose tissue insulin sensitivity in humans.

objectiveThe aim of this study was to further examine whether possible changes in adipose perfusion could explain increased adipose tissue glucose uptake (GU). PATIENTS: Thirty-seven patients with newly diagnosed type 2 diabetes were included.

interventionPatients were randomized into treatment with rosiglitazone, metformin, or placebo for 26 wk in a double-blinded trial.

designFemoral adipose flow and GU were measured with [15O]H2O, [18F]fluorodeoxyglucose and positron emission tomography during euglycemic hyperinsulinemia. Adipose masses were measured using magnetic resonance imaging.

resultsMetformin and rosiglitazone treatment improved glycemic control, but only rosiglitazone increased whole-body insulin sensitivity. Rosiglitazone treatment increased flow by 72% (P < 0.01) and GU by 23% (P < 0.05) and thereby decreased adipose tissue glucose extraction by 18% (P < 0.05); no changes were observed in the metformin or placebo-treated groups. When the adipose masses were taken into account, rosiglitazone treatment increased flow by 73% (P < 0.01) and GU by 24% (P < 0.05). During hyperinsulinemia, flow correlated with GU (r = 0.63; P < 0.01).

conclusionsIn conclusion, s.c. GU is associated with flow in patients with type 2 diabetes. Rosiglitazone treatment enhances GU and flow but decreases glucose extraction, suggesting that perfusion may contribute to adipose tissue insulin sensitization by rosiglitazone.

Indexed as

Adipose TissueAgedDiabetes Mellitus, Type 2Double-Blind MethodFemaleFluorodeoxyglucose F18GlucoseHumansHypoglycemic AgentsInsulin ResistanceMaleMetforminMiddle AgedPerfusionPositron-Emission TomographyRadiopharmaceuticalsFluorodeoxyglucose F18GlucoseHypoglycemic AgentsMetforminRadiopharmaceuticalsRosiglitazoneThiazolidinediones

Identifiers

PMID16189256
OpenAlexW2118446869

What Socratic holds

Texttitle and abstract
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 Socratic graph.