Evidence map›Paper›PMID 22961008›Full record

ArticleLangenbeck's archives of surgery2012

Deficiency of the oxygen sensor PHD1 augments liver regeneration after partial hepatectomy.

Martin Mollenhauer, Judit Kiss, Johanna Dudda, Johanna Kirchberg, Nuh Rahbari, Praveen Radhakrishnan, Thomas Niemietz, Vanessa Rausch, Jürgen Weitz, Martin Schneider

Abstract read
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In one paragraph

Article in Langenbeck's archives of surgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

16 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Article
  3. Hypoxia signaling in human diseases and therapeutic targets.Experimental & molecular medicine · 2019
    Review
  4. Review
  5. Review
  6. The PHD1 oxygen sensor in health and disease.The Journal of physiology · 2018
    Review
  7. Review
  8. Impaired liver regeneration after hepatectomy and bleeding is associated with a shift from hepatocyte proliferation to hypertrophy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2017
    Article
  9. Review
  10. Hypoxia-inducible factors as molecular targets for liver diseases.Journal of molecular medicine (Berlin, Germany) · 2016
    Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Review
  16. 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

10 authors at 1 institution in 1 country.

Martin MollenhauerDepartment of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany.
Judit Kiss
Johanna Dudda
Johanna Kirchberg
Nuh Rahbari
Praveen Radhakrishnan
Thomas Niemietz
Vanessa Rausch
Jürgen Weitz
Martin Schneider
Heidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeLiver regeneration after partial hepatectomy (PH) occurs in conditions of reduced oxygen supply. HIF prolyl hydroxylase enzymes (PHD1, PHD2, and PHD3) are oxygen sensors involved in adaptive response to hypoxia. Specific functions of these PHD enzymes in liver regeneration have, however, remained enigmatic. Here, we investigated the significance of PHD1 in liver regeneration following hepatectomy.

methodsLiver regeneration was studied in PHD1-deficient (PHD1(-/-)) and wild type (WT) mice subjected to 80% hepatectomy. For in vitro analyses, hepatocytes were isolated from PHD1(-/-) and WT livers. Cell cycle progression was studied via FACS-based analysis of nuclear DNA profile. Transcription factor binding assays, qRT-PCR, and immunoblotting were applied to study the relevance of PHD1 downstream effectors during liver regeneration.

resultsLiver regeneration was significantly enhanced in PHD1(-/-) mice compared to WT littermates. This effect was due to enhanced proliferation rather than to hypertrophy of liver cells. Cell cycle progression was significantly enhanced, and transcriptional activity of the cell cycle regulator c-Myc was increased in PHD1-deficient hepatocytes. These changes coincided with increased expression of cyclin D2, a cell cycle-promoting c-Myc target, and decreased expression of the cell cycle-delaying c-Myc target p21.

conclusionsLoss of PHD1 enhances liver regeneration by boosting hepatocyte proliferation in a c-Myc-dependent fashion. PHD1 might, therefore, represent a potential target to facilitate liver regeneration after surgical resection.

Indexed as

HepatectomyAnimalsBasic Helix-Loop-Helix ProteinsBlotting, WesternCell CycleCell ProliferationCells, CulturedEndothelial PAS Domain-Containing Protein 1HepatocytesLiver RegenerationMiceMice, KnockoutProcollagen-Proline DioxygenaseProto-Oncogene Proteins c-mycReal-Time Polymerase Chain ReactionBasic Helix-Loop-Helix ProteinsEndothelial PAS Domain-Containing Protein 1PHD1 protein, mouseProcollagen-Proline DioxygenaseProto-Oncogene Proteins c-myc

Identifiers

PMID22961008
OpenAlexW1978029319

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.