Evidence map›Paper›PMID 26146639›Full record

ArticleBioMed research international2015

Epoetin Alpha and Epoetin Zeta: A Comparative Study on Stimulation of Angiogenesis and Wound Repair in an Experimental Model of Burn Injury.

Natasha Irrera, Alessandra Bitto, Gabriele Pizzino, Mario Vaccaro, Francesco Squadrito, Mariarosaria Galeano, Francesco Stagno d'Alcontres, Ferdinando Stagno d'Alcontres, Michele Buemi, Letteria Minutoli and 2 more

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Use of botulinum toxin in Frey's syndrome.Clinical case reports · 2019
    Article
  8. Silk Fibroin in Wound Healing Process.Advances in experimental medicine and biology
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Natasha IrreraDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Alessandra BittoDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Gabriele PizzinoDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Mario VaccaroDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Francesco SquadritoDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Mariarosaria GaleanoDepartment of Dentistry and Medical and Surgical Experimental Sciences, University of Messina, 98125 Messina, Italy.
Francesco Stagno d'AlcontresDepartment of Dentistry and Medical and Surgical Experimental Sciences, University of Messina, 98125 Messina, Italy.
Ferdinando Stagno d'AlcontresDepartment of Dentistry and Medical and Surgical Experimental Sciences, University of Messina, 98125 Messina, Italy.
Michele BuemiDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Letteria MinutoliDepartment of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy.
Michele Rosario ColonnaDepartment of Dentistry and Medical and Surgical Experimental Sciences, University of Messina, 98125 Messina, Italy.
Domenica AltavillaDepartment of Paediatric, Gynaecological, Microbiological and Biomedical Sciences, University of Messina, 98125 Messina, Italy.
University of Messina · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Deep second-degree burns are characterized by delayed formation of granulation tissue and impaired angiogenesis. Erythropoietin (EPO) is able to stimulate angiogenesis and mitosis, activating vascularization and cell cycle. The aim of our study was to investigate whether two biosimilar recombinant human erythropoietins, EPO-α and EPO-Z, may promote these processes in an experimental model of burn injury. A total of 84 mice were used and a scald burn was produced on the back after shaving, in 80°C water for 10 seconds. Mice were then randomized to receive EPO-α (400 units/kg/day/sc) or EPO-Z (400 units/kg/day/sc) or their vehicle (100 μL/day/sc 0.9% NaCl solution). After 12 days, both EPO-α and EPO-Z increased VEGF protein expression. EPO-α caused an increased cyclin D1/CDK6 and cyclin E/CDK2 expression compared with vehicle and EPO-Z (p<0.001). Our study showed that EPO-α and EPO-Z accelerated wound closure and angiogenesis; however EPO-α resulted more effectively in achieving complete skin regeneration. Our data suggest that EPO-α and EPO-Z are not biosimilars for the wound healing effects. The higher efficacy of EPO-α might be likely due to its different conformational structure leading to a more efficient cell proliferation and skin remodelling.

Indexed as

AnimalsBrain InjuriesBurnsEpoetin AlfaErythropoietinGene Expression RegulationHumansMiceModels, TheoreticalNeovascularization, PhysiologicRecombinant ProteinsVascular Endothelial Growth Factor AWound HealingEpoetin Alfaepoetin zetaErythropoietinRecombinant ProteinsVascular Endothelial Growth Factor Avascular endothelial growth factor A, mouse

Identifiers

PMID26146639
PMCPMC4471383
OpenAlexW1498904698

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.