Evidence map›Paper›PMID 18719883›Full record

ArticleDiabetologia2008

Transcriptional profiling of myotubes from patients with type 2 diabetes: no evidence for a primary defect in oxidative phosphorylation genes.

C M Frederiksen, K Højlund, L Hansen, E J Oakeley, B Hemmings, B M Abdallah, K Brusgaard, H Beck-Nielsen, M Gaster

Abstract read
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In one paragraph

Article in Diabetologia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Matrix metalloproteinase 14 modulates diabetes and Alzheimer's disease cross-talk: a meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2018
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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

9 authors at 4 institutions in 2 countries.

C M FrederiksenDepartment of Endocrinology, Odense University Hospital, Kløvervaenget 6, 5000, Odense C, Denmark.
K Højlund
L Hansen
E J Oakeley
B Hemmings
B M Abdallah
K Brusgaard
H Beck-Nielsen
M Gaster
Odense University Hospital · DKFriedrich Miescher Institute · CHSteno Diabetes Center · DKUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisMicroarray-based studies of skeletal muscle from patients with type 2 diabetes and high-risk individuals have demonstrated that insulin resistance and reduced mitochondrial biogenesis co-exist early in the pathogenesis of type 2 diabetes independently of hyperglycaemia and obesity. It is unknown whether reduced mitochondrial biogenesis or other transcriptional alterations co-exist with impaired insulin responsiveness in primary human muscle cells from patients with type 2 diabetes.

methodsUsing cDNA microarray technology and global pathway analysis with the Gene Map Annotator and Pathway Profiler (GenMapp 2.1) and Gene Set Enrichment Analysis (GSEA 2.0.1), we examined transcript levels in myotubes established from obese patients with type 2 diabetes and matched obese healthy participants, who had been extensively metabolically characterised both in vivo and in vitro. We have previously reported reduced basal lipid oxidation and impaired insulin-stimulated glycogen synthesis and glucose oxidation in these diabetic myotubes.

resultsNo single gene was differently expressed after correction for multiple testing, and no biological pathway was differently expressed using either method of global pathway analysis. In particular, we found no evidence for differential expression of genes involved in mitochondrial oxidative metabolism. Consistently, there was no difference in mRNA levels of genes known to mediate the transcriptional control of mitochondrial biogenesis (PPARGC1A and NRF1) or in mitochondrial mass between diabetic and control myotubes. CONCLUSIONS/

interpretationThese results support the hypothesis that impaired mitochondrial biogenesis is not a primary defect in the sequence of events leading to insulin resistance and type 2 diabetes.

Indexed as

Gene Expression ProfilingOxidative PhosphorylationTranscription, GeneticBody Mass IndexDiabetes Mellitus, Type 2Heat-Shock ProteinsHumansMiddle AgedMuscle Fibers, SkeletalMuscle, SkeletalNuclear Respiratory Factor 1ObesityOligonucleotide Array Sequence AnalysisPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaRNATranscription FactorsHeat-Shock ProteinsNRF1 protein, humanNuclear Respiratory Factor 1Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPARGC1A protein, humanRNATranscription Factors

Identifiers

PMID18719883
OpenAlexW2029631235

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Registered trials

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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.