Evidence map›Paper›PMID 19179292›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

PGC-1alpha is coupled to HIF-1alpha-dependent gene expression by increasing mitochondrial oxygen consumption in skeletal muscle cells.

Kathleen A O'Hagan, Sinead Cocchiglia, Alexander V Zhdanov, Murtaza M Tambuwala, Murtaza M Tambawala, Eoin P Cummins, Mona Monfared, Terence A Agbor, John F Garvey, Dmitri B Papkovsky and 2 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
7.4field-weighted citation impact, top 3% 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

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 193 citations in OpenAlex.

  1. Pooled it
  2. Oxygen Consumption Rate-Defined Phases Couple Metabolism to Matrix Dynamics in Chondrocyte-Mesenchymal Stromal Cell Co-Culture.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
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38 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
    Tambawala, Murtaza M [corrected to Tambuwala, Murtaza M]
5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Kathleen A O'HaganConway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
Sinead Cocchiglia
Alexander V Zhdanov
Murtaza M Tambuwala
Murtaza M Tambawala
Eoin P Cummins
Mona Monfared
Terence A Agbor
John F Garvey
Dmitri B Papkovsky
Cormac T Taylor
Bernard B Allan
University College Dublin · IEUniversity College Cork · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial biogenesis occurs in response to increased cellular ATP demand. The mitochondrial electron transport chain requires molecular oxygen to produce ATP. Thus, increased ATP generation after mitochondrial biogenesis results in increased oxygen demand that must be matched by a corresponding increase in oxygen supply. We found that overexpression of peroxisome proliferator-activated receptor-gamma coactivator 1alpha (PGC-1alpha), which increases mitochondrial biogenesis in primary skeletal muscle cells, leads to increased expression of a cohort of genes known to be regulated by the dimeric hypoxia-inducible factor (HIF), a master regulator of the adaptive response to hypoxia. PGC-1alpha-dependent induction of HIF target genes under physiologic oxygen concentrations is not through transcriptional coactivation of HIF or up-regulation of HIF-1alpha mRNA but through HIF-1alpha protein stabilization. It occurs because of intracellular hypoxia as a result of increased oxygen consumption after mitochondrial biogenesis. Thus, we propose that at physiologic oxygen concentrations, PGC-1alpha is coupled to HIF signaling through the regulation of intracellular oxygen availability, allowing cells and tissues to match increased oxygen demand after mitochondrial biogenesis with increased oxygen supply.

Indexed as

Gene Expression RegulationGene Expression Regulation, EnzymologicAnimalsHeat-Shock ProteinsHumansHypoxia-Inducible Factor 1, alpha SubunitMiceMitochondriaMuscle, SkeletalOxygenOxygen ConsumptionPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPAR gammaRatsRNA-Binding ProteinsTrans-ActivatorsHeat-Shock ProteinsHIF1A protein, humanHif1a protein, mouseHif1a protein, ratHypoxia-Inducible Factor 1, alpha SubunitOxygenPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPAR gammaPPARGC1A protein, humanPpargc1a protein, mousePpargc1a protein, ratRNA-Binding ProteinsTrans-ActivatorsTranscription Factors

Identifiers

PMID19179292
PMCPMC2632715
OpenAlexW2005139419

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.