Evidence mapPaperPMID 36959506Full record

ArticleActa diabetologica2023

Serum glial fibrillary acidic protein and neurofilament light chain as biomarkers of retinal neurodysfunction in early diabetic retinopathy: results of the EUROCONDOR study.

Cristina Hernández, Olga Simó-Servat, Massimo Porta, Jakob Grauslund, Simon P Harding, Ulrik Frydkjaer-Olsen, José García-Arumí, Luísa Ribeiro, Peter Scanlon, José Cunha-Vaz and 2 more

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Article in Acta diabetologica, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 13 citations in OpenAlex.

  1. Dulaglutide and neurodegeneration biomarkers: REWIND post hoc analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Trial
  2. Article
  3. Neuroprotection in Early Diabetic Retinal Disease Using Eyedrop Delivery.International journal of molecular sciences · 2026
    Review
  4. Article
  5. Article
  6. Review
  7. Article
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  9. Effect of ranibizumab on diabetic retinopathyWorld journal of diabetes · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. 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

12 authors at 8 institutions in 6 countries.

Cristina HernándezDiabetes and Metabolism Research Unit and CIBERDEM, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Passeig de La Vall d'Hebron, 119-129, 08035, Barcelona, Spain. cristina.hernandez@vhir.org.ORCID http://orcid.org/0000-0002-3109-1721
Olga Simó-ServatDiabetes and Metabolism Research Unit and CIBERDEM, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Passeig de La Vall d'Hebron, 119-129, 08035, Barcelona, Spain.
Massimo PortaDepartment of Medical Sciences, University of Turin, Turin, Italy.
Jakob GrauslundResearch Unit of Ophthalmology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
Simon P HardingDepartment of Eye and Vision Science, Institute of Life Course and Medical Sciences, University of Liverpool, and St. Paul's Eye Unit. Liverpool University Hospitals, Liverpool, UK.
Ulrik Frydkjaer-OlsenResearch Unit of Ophthalmology, Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
José García-ArumíDepartment of Ophthalmology, Vall d'Hebron University Hospital, Barcelona, Spain.
Luísa RibeiroAssociation for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.
Peter ScanlonGloucestershire Hospitals National Health Service Foundation Trust, Cheltenham, UK.
José Cunha-VazAssociation for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal.
Rafael SimóDiabetes and Metabolism Research Unit and CIBERDEM, Vall d'Hebron Research Institute, Vall d'Hebron Barcelona Hospital Campus, Passeig de La Vall d'Hebron, 119-129, 08035, Barcelona, Spain.
European Consortium for the Early Treatment of Diabetic Retinopathy (EUROCONDOR)
Association for Innovation and Biomedical Research on Light and Image · PTCentro de Investigación Biomédica en Red Diabetes y Enfermedades Metabólicas Asociadas · ESUniversity of Southern Denmark · DKHebron University · PSNational Health Service · GBUniversity of Liverpool · GBUniversity of Turin · ITVall d'Hebron Hospital Universitari · ES

Funding

Instituto de Salud Carlos III PI20/01703Seventh Framework Programme 278040
6 · The paper itself

Abstract

aimsNeurodegeneration and glial activation are primary events in the pathogenesis of diabetic retinopathy. Serum glial fibrillary acidic protein (GFAP) and neurofilament light chain (NfL) are biomarkers of underlying neuroinflammatory and neurodegenerative disease processes. The aim of the present study was to assess the usefulness of these serum biomarkers for the identification and monitoring of retinal neurodysfunction in subjects with type 2 diabetes.

methodsA case-control study was designed including 38 patients from the placebo arm of the EUROCONDOR clinical trial: 19 with and 19 without retinal neurodysfunction assessed by multifocal electroretinography. GFAP and NfL were measured by Simoa.

resultsSerum levels of GFAP and NfL directly correlated with age (r = 0.37, p = 0.023 and r = 0.54, p < 0.001, respectively). In addition, a direct correlation between GFAP and NfL was observed (r = 0.495, p = 0.002). Serum levels of GFAP were significantly higher at baseline in those subjects in whom neurodysfunction progressed after the 2 years of follow-up (139.1 ± 52.5 pg/mL vs. 100.2 ± 54.6 pg/mL; p = 0.04).

conclusionsGFAP could be a useful serum biomarker for retinal neurodysfunction. Monitoring retinal neurodysfunction using blood samples would be of benefit in clinical decision-making. However, further research is needed to validate this result as well as to establish the best cutoff values.

Indexed as

BiomarkersDiabetes Mellitus, Type 2Diabetic RetinopathyGlial Fibrillary Acidic ProteinCase-Control StudiesHumansIntermediate FilamentsNeurodegenerative DiseasesNeurofilament ProteinsBiomarkersGlial Fibrillary Acidic Proteinneurofilament protein LNeurofilament ProteinsDiabetic retinopathyGlial fibrillary acidic proteinNeurofilament light chainRetinal neurodysfunctionSerum biomarkers

Identifiers

PMID36959506
OpenAlexW4360609206

What Socratic holds

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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 Socratic graph.