Evidence map›Paper›PMID 25013951›Full record

ArticlePloS one2014

Systemic treatment with erythropoietin protects the neurovascular unit in a rat model of retinal neurodegeneration.

Stephanie Busch, Aimo Kannt, Matthias Kolibabka, Andreas Schlotterer, Qian Wang, Jihong Lin, Yuxi Feng, Sigrid Hoffmann, Norbert Gretz, Hans-Peter Hammes

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Stem cell therapies for retinal diseases: from bench to bedside.Journal of molecular medicine (Berlin, Germany) · 2020
    Review
  7. Effects of an Aquaporin 4 Inhibitor, TGN-020, on Murine Diabetic Retina.International journal of molecular sciences · 2020
    Article
  8. Article
  9. Article
  10. Empowering Mesenchymal Stem Cells for Ocular Degenerative Disorders.International journal of molecular sciences · 2019
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Implication of VEGF and aquaporin 4 mediating Müller cell swelling to diabetic retinal edema.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2017
    Article
  17. Review
  18. Review
  19. Review
  20. Review
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 4 institutions in 1 country.

Stephanie Busch5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Aimo KanntSanofi Diabetes Research and Translational Medicine, Frankfurt, Germany.
Matthias Kolibabka5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Andreas Schlotterer5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Qian Wang5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Jihong Lin5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Yuxi FengInstitute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Sigrid HoffmannMedical Research Center, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Norbert GretzMedical Research Center, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
Hans-Peter Hammes5th Medical Department, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
University Medical Centre Mannheim · DEUniversity Hospital Heidelberg · DEHeidelberg University · DESanofi (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rats expressing a transgenic polycystic kidney disease (PKD) gene develop photoreceptor degeneration and subsequent vasoregression, as well as activation of retinal microglia and macroglia. To target the whole neuroglialvascular unit, neuro- and vasoprotective Erythropoietin (EPO) was intraperitoneally injected into four-week old male heterozygous PKD rats three times a week at a dose of 256 IU/kg body weight. For comparison EPO-like peptide, lacking unwanted side effects of EPO treatment, was given five times a week at a dose of 10 µg/kg body weight. Matched EPO treated Sprague Dawley and water-injected PKD rats were held as controls. After four weeks of treatment the animals were sacrificed and analysis of the neurovascular morphology, glial cell activity and pAkt localization was performed. The number of endothelial cells and pericytes did not change after treatment with EPO or EPO-like peptide. There was a nonsignificant reduction of migrating pericytes by 23% and 49%, respectively. Formation of acellular capillaries was significantly reduced by 49% (p<0.001) or 40% (p<0.05). EPO-treatment protected against thinning of the central retina by 10% (p<0.05), a composite of an increase of the outer nuclear layer by 12% (p<0.01) and in the outer segments of photoreceptors by 26% (p<0.001). Quantification of cell nuclei revealed no difference. Microglial activity, shown by gene expression of CD74, decreased by 67% (p<0.01) after EPO and 36% (n.s.) after EPO-like peptide treatment. In conclusion, EPO safeguards the neuroglialvascular unit in a model of retinal neurodegeneration and secondary vasoregression. This finding strengthens EPO in its protective capability for the whole neuroglialvascular unit.

Indexed as

AnimalsDisease Models, AnimalEpoetin AlfaErythropoietinMalePeptidesRatsRats, Sprague-DawleyRecombinant ProteinsRetinal DegenerationEpoetin AlfaErythropoietinPeptidesRecombinant Proteins

Identifiers

PMID25013951
PMCPMC4094460
OpenAlexW2000871659

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.