Evidence map›Paper›PMID 34643662›Full record

ArticleInvestigative ophthalmology & visual science2021

Neutrophil-Derived Proteases Contribute to the Pathogenesis of Early Diabetic Retinopathy.

Emma M Lessieur, Haitao Liu, Aicha Saadane, Yunpeng Du, Jie Tang, Jianying Kiser, Timothy S Kern

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Theophylline Inhibits Capillary Degeneration in Early Diabetic Retinopathy.Investigative ophthalmology & visual science · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Neutrophils in Ocular Diseases.International journal of molecular sciences · 2024
    Review
  11. Resilience to diabetic retinopathy.Progress in retinal and eye research · 2024
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
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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

7 authors at 3 institutions in 1 country.

Emma M LessieurCenter for Translational Vision Research, Gavin Herbert Eye Institute, University of California - Irvine, Irvine, California, United States.
Haitao LiuDepartment of Biology, Case Western Reserve University, Cleveland, Ohio, United States.
Aicha SaadaneCenter for Translational Vision Research, Gavin Herbert Eye Institute, University of California - Irvine, Irvine, California, United States.
Yunpeng DuCenter for Translational Vision Research, Gavin Herbert Eye Institute, University of California - Irvine, Irvine, California, United States.
Jie TangDepartment of Pharmacology, Case Western Reserve University, Cleveland, Ohio, United States.
Jianying KiserCenter for Translational Vision Research, Gavin Herbert Eye Institute, University of California - Irvine, Irvine, California, United States.
Timothy S KernCenter for Translational Vision Research, Gavin Herbert Eye Institute, University of California - Irvine, Irvine, California, United States.
University of California, Irvine · USCase Western Reserve University · USUnited States Department of Veterans Affairs · US

Funding

TISSUE CULTURE AND HYBRIDOMA MODULEP30EY011373 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Irina A Pikuleva · 1997 to 2026
$17.7M
Novel therapies to inhibit Diabetic RetinopathyR24EY024864 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI KERN, TIMOTHY S · 2015 to 2019
$8.1M
Role of Photoreceptors in the Pathogenesis of Diabetic RetinopathyR01EY022938 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI KERN, TIMOTHY S · 2013 to 2021
$3.7M
Neutrophil elastase and Gasdermin D in diabetic retinopathyR01EY033002 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI SKOWRONSKA-KRAWCZYK, DOROTA · 2021 to 2025
$1.9M
Glucose transport in the diabetic outer retina.I01BX002754 · VA · LOUIS STOKES CLEVELAND VA MEDICAL CENTER · PI SAMUELS, IVY S · 2016 to 2019
–
BLR&D Research Career Scientist ApplicationIK6BX003604 · VA · VETERANS HEALTH ADMINISTRATION · PI KERN, TIMOTHY S · 2017 to 2021
–
BLRD VA I01 BX002754BLRD VA IK6 BX003604NEI NIH HHS P30 EY011373NEI NIH HHS R01 EY022938NEI NIH HHS R01 EY033002NEI NIH HHS R24 EY024864
6 · The paper itself

Abstract

Purpose: Previous studies indicate that leukocytes, notably neutrophils, play a causal role in the capillary degeneration observed in diabetic retinopathy (DR), however, the mechanism by which they cause such degeneration is unknown. Neutrophil elastase (NE) is a protease released by neutrophils which participates in a variety of inflammatory diseases. In the present work, we investigated the potential involvement of NE in the development of early DR. Methods: Experimental diabetes was induced in NE-deficient mice (Elane-/-), in mice treated daily with the NE inhibitor, sivelestat, and in mice overexpressing human alpha-1 antitrypsin (hAAT+). Mice were assessed for diabetes-induced retinal superoxide generation, inflammation, leukostasis, and capillary degeneration. Results: In mice diabetic for 2 months, deletion of NE or selective inhibition of NE inhibited diabetes-induced retinal superoxide levels and inflammation, and inhibited leukocyte-mediated cytotoxicity of retinal endothelial cells. In mice diabetic for 8 months, genetic deletion of NE significantly inhibited diabetes-induced retinal capillary degeneration. Conclusions: These results suggest that a protease released from neutrophils contributes to the development of DR, and that blocking NE activity could be a novel therapy to inhibit DR.

Indexed as

AnimalsDiabetes Mellitus, ExperimentalDiabetic RetinopathyEndothelial CellsEnzyme-Linked Immunosorbent AssayFlow CytometryMaleMiceMice, Inbred C57BLNeutrophilsPeptide HydrolasesRetinaPeptide Hydrolases

Identifiers

PMID34643662
PMCPMC8525836
OpenAlexW3206699217

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.