Evidence map›Paper›PMID 20400342›Full record

ArticleBlood cells, molecules & diseases2010

Integrity of the prolyl hydroxylase domain protein 2:erythropoietin pathway in aging mice.

Xiping Li, Scott Sutherland, Kotaro Takeda, Guo-Hua Fong, Frank S Lee

Abstract read
In one paragraph

Article in Blood cells, molecules & diseases, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. PHD1-3 oxygen sensors in vivo-lessons learned from gene deletions.Pflugers Archiv : European journal of physiology · 2024
    Review
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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

5 authors at 2 institutions in 1 country.

Xiping LiDepartment of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
Scott Sutherland
Kotaro Takeda
Guo-Hua Fong
Frank S Lee
University of Pennsylvania · USUConn Health · US

Funding

Molecular Mechanisms of the Hypoxic ResponseR01CA090261 · NCI · UNIVERSITY OF PENNSYLVANIA · PI LEE, FRANK S · 2002 to 2006
$1.3M
NCI NIH HHS R01 CA090261NCI NIH HHS R01-CA090261
6 · The paper itself

Abstract

The central transcriptional response to hypoxia is mediated by the prolyl hydroxylase domain protein (PHD):hypoxia inducible factor (HIF) pathway. In this pathway, PHD prolyl hydroxylates and thereby negatively regulates the alpha-subunit of the transcription factor HIF (HIF-alpha). An important HIF target gene is that for erythropoietin (EPO), which controls red cell mass. Recent studies have identified PHD2 as the critical PHD isoform regulating the EPO gene. Other studies have shown that the inducibility of the HIF pathway diminishes as a function of age. Thus, an important question is whether the PHD2:EPO pathway is altered in the aging. Here, we employed a mouse line with a globally-inducible Phd2 conditional knockout allele to examine the integrity of the Phd2:Epo axis in young (six to eight months old) and aging (sixteen to twenty months old) mice. We find that acute global deletion of Phd2 results in a robust erythrocytosis in both young and aging mice, with both age groups showing marked extramedullary hematopoiesis in the spleen. Epo mRNA is dramatically upregulated in the kidney, but not in the liver, in both age groups. Conversely, other Hif targets, including Vegf, Pgk1, and Phd3 are upregulated in the liver but not in the kidney in both age groups. These findings have implications for targeting this pathway in the aging.

Indexed as

AgingAnimalsErythropoietinGene DeletionGene Expression RegulationHematopoiesisHypoxia-Inducible Factor 1Hypoxia-Inducible Factor-Proline DioxygenasesMiceMice, Inbred C57BLMice, KnockoutProcollagen-Proline DioxygenaseRNA, MessengerSignal TransductionEgln1 protein, mouseErythropoietinHypoxia-Inducible Factor 1Hypoxia-Inducible Factor-Proline DioxygenasesProcollagen-Proline DioxygenaseRNA, Messenger

Identifiers

PMID20400342
PMCPMC2878925
OpenAlexW2028941126

What OpenQuestion holds

Textmetadata
LicenceTDM
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.