Evidence map›Paper›PMID 25018619›Full record

ArticleMolecular vision2014

Aqueous humor erythropoietin levels in open-angle glaucoma patients with and without TTR V30M familial amyloid polyneuropathy.

João M Beirão, Luciana M Moreira, João C Oliveira, Maria J Menéres, Bernardete B Pessoa, Maria E Matos, Paulo P Costa, Paulo A Torres, Idalina B Beirão

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 20% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Modified Technique of Ex-PRESSClinical ophthalmology (Auckland, N.Z.) · 2023
    Article
  3. Article
  4. Article
  5. 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 2 institutions in 1 country.

João M BeirãoOphthalmology, Hospital de Santo António, Porto ; Unidade Clínica de Paramiloidose, Hospital de Santo António, Porto ; UMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto.
Luciana M MoreiraUMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto ; INSA Dr. Ricardo Jorge, Porto.
João C OliveiraBiochemistry Service, Hospital Santo António, Porto.
Maria J MenéresOphthalmology, Hospital de Santo António, Porto ; UMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto.
Bernardete B PessoaOphthalmology, Hospital de Santo António, Porto.
Maria E MatosUMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto.
Paulo P CostaUMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto ; INSA Dr. Ricardo Jorge, Porto.
Paulo A TorresOphthalmology, Hospital de Santo António, Porto ; UMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto.
Idalina B BeirãoUnidade Clínica de Paramiloidose, Hospital de Santo António, Porto ; UMIB, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Porto.
Hospital de Santo António · PTUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeGlaucoma is the leading cause of irreversible blindness in familial amyloidotic polyneuropathy (FAP) patients. Erythropoietin (EPO) is a cytokine that has been shown to play a role in neuroprotection and is endogenously produced in the eye. EPO levels in the aqueous humor are increased in eyes with glaucoma. In this study, we evaluated the EPO concentration in the aqueous humor of FAP and non-FAP patients, with and without glaucoma.

methodsUndiluted aqueous humor samples were obtained from 42 eyes that underwent glaucoma surgery, phacoemulsification, or vitrectomy. EPO concentration in the aqueous humor and blood were measured using the Immulite 2000 Xpi using an automatic analyzer (Siemens Healthcare Diagnostics).

resultsThe mean EPO concentration in the aqueous humor of non-FAP glaucoma eyes group 2 (75.73±13.25 mU/ml) was significantly higher than non-FAP cataract eyes (17.22±5.33 mU/ml; p<0.001), FAP glaucoma eyes (18.82±10.16 mU/ml; p<0.001), and FAP nonglaucoma eyes (20.62±6.22 mU/ml; p<0.001). There was no statistically significant difference between FAP nonglaucoma eyes versus non-FAP cataract eyes (p = 0.23) and FAP glaucoma eyes versus FAP nonglaucoma eyes (p = 0.29). In the glaucoma groups, there was no correlation between the aqueous humor EPO concentration and the ocular pressure (p = 0.95) and mean deviation (p = 0.41). There was no correlation between the EPO serum concentration and EPO aqueous humor concentration in our patients (p = 0.77).

conclusionsUnlike other glaucomatous patients, FAP patients with glaucoma do not show increased and potentially neuroprotective endocular EPO production in the aqueous humor and may need more aggressive glaucoma management.

Indexed as

Amyloid Neuropathies, FamilialAqueous HumorDemographyErythropoietinFemaleGlaucoma, Open-AngleHumansIntraocular PressureMaleMiddle AgedMutant ProteinsErythropoietinMutant Proteins

Identifiers

PMID25018619
PMCPMC4087117
OpenAlexW2159994258

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.