Evidence map›Paper›PMID 21775499›Full record

ArticleEuropean journal of endocrinology2011

Decreased expression of genes involved in oxidative phosphorylation in human pancreatic islets from patients with type 2 diabetes.

Anders H Olsson, Beatrice T Yang, Elin Hall, Jalal Taneera, Albert Salehi, Marloes Dekker Nitert, Charlotte Ling

Open access · hybridAbstract read
In one paragraph

Article in European journal of endocrinology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
5.9field-weighted citation impact, top 4% 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

49 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
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  4. Multi-Omics Analysis of a Spontaneous Type 2 Diabetes Model inInternational journal of molecular sciences · 2026
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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

7 authors at 2 institutions in 1 country.

Anders H OlssonDepartment of Clinical Sciences, Lund University Diabetes Centre, CRC, Scania University Hospital, Malmo, Sweden.
Beatrice T Yang
Elin Hall
Jalal Taneera
Albert Salehi
Marloes Dekker Nitert
Charlotte Ling
Scania (Sweden) · SELund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveGene expression alterations, especially in target tissues of insulin, have been associated with type 2 diabetes (T2D). In this study, we examined if genes involved in oxidative phosphorylation (OXPHOS) show differential gene expression and DNA methylation in pancreatic islets from patients with T2D compared with non-diabetic donors. DESIGN AND

methodsGene expression was analyzed in human pancreatic islets from 55 non-diabetic donors and nine T2D donors using microarray.

resultsWhile the expected number of OXPHOS genes with reduced gene expression is 7.21, we identified 21 downregulated OXPHOS genes in pancreatic islets from patients with T2D using microarray analysis. This gives a ratio of observed over expected OXPHOS genes of 26.37 by a χ(2)-test with P=2.81 × 10(-7). The microarray data was validated by qRT-PCR for four selected OXPHOS genes: NDUFA5, NDUFA10, COX11, and ATP6V1H. All four OXPHOS genes were significantly downregulated in islets from patients with T2D compared with non-diabetic donors using qRT-PCR (P ≤ 0.01). Furthermore, HbAlc levels correlated negatively with gene expression of NDUFA5, COX11, and ATP6V1H (P<0.05). Gene expression of NDUFA5, NDUFA10, COX11, and ATP6V1H correlated positively with glucose-stimulated insulin secretion (P<0.03). Finally, DNA methylation was analyzed upstream of the transcription start for NDUFA5, COX11, and ATP6V1H. However, none of the analyzed CpG sites in the three genes showed differences in DNA methylation in islets from donors with T2D compared with non-diabetic donors.

conclusionPancreatic islets from patients with T2D show decreased expression of a set of OXPHOS genes, which may lead to impaired insulin secretion.

Indexed as

Oxidative PhosphorylationAdultAgedCopper Transport ProteinsDiabetes Mellitus, Type 2DNA MethylationDown-RegulationElectron Transport Chain Complex ProteinsElectron Transport Complex IVFemaleGene ExpressionHumansIslets of LangerhansMaleMiddle AgedMitochondrial ProteinsCopper Transport ProteinsCOX11 protein, humanElectron Transport Chain Complex ProteinsElectron Transport Complex IVMitochondrial ProteinsNADH DehydrogenaseNDUFA5 protein, humanRNA

Identifiers

PMID21775499
PMCPMC3178933
OpenAlexW2162151881

What OpenQuestion holds

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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.