Evidence map›Paper›PMID 28304388›Full record

ArticleEye (London, England)2017

Pirfenidone inhibits post-traumatic proliferative vitreoretinopathy.

B N M K Khanum, R Guha, V P Sur, S Nandi, S K Basak, A Konar, S Hazra

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
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  4. Management of fibrosis in neovascular age-related macular degeneration.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Review
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  7. Pirfenidone use in fibrotic diseases: What do we know so far?Immunity, inflammation and disease · 2024
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Preparation andIranian journal of basic medical sciences · 2020
    Article
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 1 country.

B N M K KhanumDepartment of Veterinary Surgery &Radiology, West Bengal University of Animal &Fishery Sciences, Kolkata, India.
R GuhaCSIR-Indian Institute of Chemical Biology, Kolkata, India.
V P SurCSIR-Indian Institute of Chemical Biology, Kolkata, India.
S NandiCSIR-Indian Institute of Chemical Biology, Kolkata, India.
S K BasakDisha Eye Hospitals, Kolkata, India.
A KonarCSIR-Indian Institute of Chemical Biology, Kolkata, India.
S HazraDepartment of Veterinary Surgery &Radiology, West Bengal University of Animal &Fishery Sciences, Kolkata, India.
Indian Institute of Chemical Biology · INWest Bengal University of Animal and Fishery Sciences · INNethradhama Superspeciality Eye Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PurposeThe purpose of the study was to evaluate the efficacy and safety of intravitreal pirfenidone for inhibition of proliferative vitreoretinopathy (PVR) in a model of penetrating ocular injury.Patients and methodsPenetrating trauma was induced on the retina of rabbit and treated either with 0.1 ml of phosphate-buffered saline (PBS) or 0.1 ml of 0.5% pirfenidone, and development of PVR was evaluated clinically and graded after 1 month. Histopathology and immunohistochemistry with transforming growth factor beta (TGFβ), alpha smooth muscle actin (αSMA), and collagen-1 were performed to assess the fibrotic changes. Expression of cytokines in the vitro-retinal tissues at different time points following pirfenidone and PBS injection was examined by RT-PCR. Availability of pirfenidone in the vitreous of rabbit at various time points was determined by high-performance liquid chromatography following injection of 0.1 ml of 0.5% pirfenidone. In normal rabbit eye, 0.1 ml of 0.5% pirfenidone was injected to evaluate any toxic effect.ResultsClinical assessment and grading revealed prevention of PVR formation in pirfenidone-treated animals, gross histology, and histopathology confirmed the observation. Immunohistochemistry showed prevention in the expression of collagen-I, αSMA, and TGFβ in the pirfenidone-treated eyes compared to the PBS-treated eyes. Pirfenidone inhibited increased gene expression of cytokines observed in control eyes. Pirfenidone could be detected up to 48 h in the vitreous of rabbit eye following single intravitreal injection. Pirfenidone did not show any adverse effect following intravitreal injection; eyes were devoid of any abnormal clinical sign, intraocular pressure, and electroretinography did not show any significant change and histology of retina remained unchanged.ConclusionThis animal study shows that pirfenidone might be a potential therapy for PVR. Further clinical study will be useful to evaluate the clinical application of pirfenidone.

Indexed as

Disease Models, AnimalActinsAnimalsAnti-Inflammatory Agents, Non-SteroidalChromatography, High Pressure LiquidCollagen Type ICytokinesElectroretinographyEye Injuries, PenetratingFluorescent Antibody Technique, IndirectGene Expression RegulationIntravitreal InjectionsPyridonesRabbitsReal-Time Polymerase Chain ReactionRetinaActinsAnti-Inflammatory Agents, Non-SteroidalCollagen Type ICytokinespirfenidonePyridones

Identifiers

PMID28304388
PMCPMC5601446
OpenAlexW2596129276

What OpenQuestion holds

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Read underepoch 390

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.