Evidence map›Paper›PMID 17522145›Full record

ArticleThe British journal of ophthalmology2007

Expression of erythropoietin receptor in human epiretinal membrane of proliferative diabetic retinopathy.

Satoru Kase, Wataru Saito, Kazuhiro Ohgami, Kazuhiko Yoshida, Naoki Furudate, Akari Saito, Masahiko Yokoi, Manabu Kase, Shigeaki Ohno

Open access · greenAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
4.7field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Systemic and vitreous biomarkers - new insights in diabetic retinopathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Observational
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Clinical and histological features of epiretinal membrane after diabetic vitrectomy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2014
    Article
  9. Article
  10. Article
  11. Promoter polymorphism of the erythropoietin gene in severe diabetic eye and kidney complications.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Satoru KaseDepartment of Ophthalmology and Visual Sciences, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo 060-8638 Japan. kaseron@med.hokudai.ac.jp
Wataru Saito
Kazuhiro Ohgami
Kazuhiko Yoshida
Naoki Furudate
Akari Saito
Masahiko Yokoi
Manabu Kase
Shigeaki Ohno
Hokkaido University · JPTeine Keijinkai Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is widely accepted that intravitreous levels of erythropoietin (Epo) are elevated in patients with ischaemic retinal diseases such as proliferative diabetic retinopathy (PDR). The aim of this study was to examine the expression of Epo and the Epo receptor (EpoR) in epiretinal membranes with and without diabetes.

methodsEighteen epiretinal membranes (PDR (n = 10), idiopathic epiretinal membranes (IERMs) without diabetes (n = 4) and inner limiting membranes (ILMs) (n = 4)) were obtained during pars plana vitrectomy. Formalin-fixed and paraffin-embedded tissues were examined by immunohistochemistry with anti-Epo and EpoR antibodies.

resultsThe histopathological findings demonstrated that PDR membranes consisted of a variety of endothelial cells forming a microvascular cavity with red blood cells and non-vascular stromal mononuclear cells. Membranous and cytoplasmic immunoreactivity for EpoR was strongly detected in endothelial cells and stromal cells in all PDR patients. Although microvessels were not observed in IERMs and ILMs, immunoreactivity for EpoR was noted in the cellular component of IERMs, and was weakly detected in ILMs. Epo was not expressed in any membrane.

conclusionEpoR was strongly expressed in microvessels of all PDR membranes. The in vivo evidence in this study suggests that Epo in the vitreous binds to EpoR in PDR membranes, which subsequently leads to the proliferation of new retinal vessels. EpoR immunoreactivity in non-vascular stromal cells in PDR membranes, and IERMs and ILMs might be indirectly correlated with ischaemia.

Indexed as

AgedDiabetic RetinopathyEndothelial CellsEpiretinal MembraneErythropoietinFemaleHumansImmunohistochemistryMaleMicrocirculationMiddle AgedReceptors, ErythropoietinErythropoietinReceptors, Erythropoietin

Identifiers

PMID17522145
PMCPMC2001006
OpenAlexW2098717484

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.