Evidence map›Paper›PMID 22876126›Full record

ArticleMolecular vision2012

Erythropoietin levels in aqueous humor of patients with glaucoma.

Nader Nassiri, Nariman Nassiri, Mercede Majdi, Hadi Z Mehrjardi, Yadollah Shakiba, Maryam Haghnegahdar, Amir Behzad Heidari, Ali R Djalilian, Mahroo Mirahmadian

Open access · greenAbstract readComparative StudyMulticenter Study
In one paragraph

Article in Molecular vision, 2012. 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
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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Trial
  2. Review
  3. Ocular manifestations in renal diseases.Indian journal of ophthalmology · 2023
    Review
  4. Erythropoietin in Glaucoma: From Mechanism to Therapy.International journal of molecular sciences · 2023
    Review
  5. The Latest Evidence of Erythropoietin in the Treatment of Glaucoma.International journal of molecular sciences · 2022
    Review
  6. Article
  7. Article
  8. Review
  9. Erythropoietin in ophthalmology: A literature review.Journal of current ophthalmology · 2016
    Review
  10. Article
  11. 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

9 authors at 5 institutions in 2 countries.

Nader NassiriDepartment of Ophthalmology, Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. nassiri@jsei.ucla.edu
Nariman Nassiri
Mercede Majdi
Hadi Z Mehrjardi
Yadollah Shakiba
Maryam Haghnegahdar
Amir Behzad Heidari
Ali R Djalilian
Mahroo Mirahmadian
Tehran University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRUniversity of California, Los Angeles · USUniversity of Illinois Chicago · USVanak Eye Center · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the aqueous concentration of erythropoietin (EPO) in eyes with primary open-angle (POAG), pseudoexfoliative (PXFG), and neovascular (NVG) glaucoma with age-matched eyes with cataracts, and to correlate its concentration with other factors including age, gender, intraocular pressure (IOP), type of glaucoma, and severity of glaucoma.

methodsIn this prospective non-randomized comparative study, a total of 26 eyes with cataracts (control group) and 92 glaucomatous eyes (POAG, 40 eyes; PXFG, 26 eyes; NVG, 26 eyes) were enrolled. Aqueous samples (0.1 to 0.2 ml) were obtained during phacoemulsification, trabeculectomy, phacotrabeculectomy, or Ahmed valve glaucoma implants. The aqueous concentration of EPO was measured using an enzyme-linked immunosorbent assay.

resultsThe mean±SEM aqueous level of EPO was statistically significantly higher in eyes with glaucoma (56.7±9.3 mIU/ml) compared to the control group (0.8±0.51 mIU/ml; p<0.001). Eyes with NVG had the highest aqueous level of EPO. Aqueous EPO concentrations remained considerably elevated even in eyes with controlled IOP in all three types of glaucoma. Eyes with PXFG displayed the greatest change in aqueous EPO concentration proportionate to the IOP level. In simple regression analysis, IOP, mean deviation, and the type of glaucoma were the factors that had a statistically significantly positive correlation with the aqueous level of EPO (p=0.011 and <0.001, respectively). Only the type of glaucoma remained statistically significant in the multiple regression analysis (adjusted R(2)=0.278).

conclusionsCompared to the control group, the aqueous humor EPO concentration is increased in eyes with POAG, PXFG, and NVG, both with and without controlled IOP. The aqueous level of EPO was more proportionate to the level of IOP in eyes with PXFG compared to eyes with POAG and NVG.

Indexed as

AgedAge FactorsAqueous HumorCataractErythropoietinExfoliation SyndromeFemaleGlaucoma, NeovascularGlaucoma, Open-AngleHumansIntraocular PressureMaleMiddle AgedProspective StudiesRegression AnalysisSeverity of Illness IndexEPO protein, humanErythropoietin

Identifiers

PMID22876126
PMCPMC3413435
OpenAlexW1510987144

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.