Evidence mapPaperPMID 41774285Full record

ArticleInternational ophthalmology2026

Therapeutic effects of Chelidonium majus on ocular surface ınflammation and tear film homeostasis in a benzalkonium chloride-ınduced rat model of dry eye disease.

Adem Unal, Ayse Bozkurt Oflaz, Nihal Cetin, Muhammed Yayla, Esma Menevse, Zeliha Esin Celik, Osman Tugay, Banu Bozkurt

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Article in International ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Adem UnalDepartment of Ophthalmology, Konya Numune Hospital, Konya, Turkey.ORCID http://orcid.org/0000-0001-6251-200X
Ayse Bozkurt OflazFaculty of Medicine, Department of Ophthalmology, Selcuk University, Konya, Turkey. draysebozkurtoflaz@yahoo.com.ORCID http://orcid.org/0000-0001-5894-0220
Nihal CetinFaculty of Medicine, Department of Pharmacology, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0003-3233-8009
Muhammed YaylaFaculty of Medicine, Department of Pharmacology, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0002-0659-3084
Esma MenevseFaculty of Medicine, Department of Biochemistry, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0002-5477-5667
Zeliha Esin CelikFaculty of Medicine, Department of Pathology, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0002-3220-7845
Osman TugayFaculty of Pharmacy, Department of Pharmaceutical Botany, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0003-3980-7648
Banu BozkurtFaculty of Medicine, Department of Ophthalmology, Selcuk University, Konya, Turkey.ORCID http://orcid.org/0000-0002-9847-3521

Funding

Selçuk University Research Foundation 25122008
6 · The paper itself

Abstract

purposeDry eye disease (DED) is a multifactorial ocular surface disorder characterized by tear film instability and chronic inflammation. Natural compounds with anti-inflammatory activity have therefore attracted increasing interest. Chelidonium majus (C. majus) latex contains bioactive alkaloids with proven anti-inflammatory properties; however, its potential role in DED has not yet been investigated.

methodsForty-six Wistar rats were randomized into six groups: Control, DED, Loteprednol etabonate (LE), and three C. majus latex dilutions (1/1, 1/10, 1/100). DED was induced by twice-daily instillation of 0.2% benzalkonium chloride (BAC) for 14 days. Following induction, LE or C. majus latex was administered according to group allocation; controls received vehicle. Tear volume (phenol red thread test), fluorescein corneal staining score (CSS), and Cochet-Bonnet esthesiometry were measured on days 0, 14, 21, and 28. On day 29, corneal tissues were analyzed by ELISA for TNF-α, IL-1β, IFN-γ, NF-κB, MMP-2, MMP-9, TIMP-2, AQP1, and AQP5, and underwent histopathological evaluation (H&E). Latex composition was characterized using LC-QTOF-MS. Statistical analysis included ANOVA with post hoc Tukey testing; p < 0.05 was considered significant.

resultsAt week 2, the DED groups demonstrated reduced tear volume (2.13 ± 0.83 mm) and increased corneal staining scores (CSS) (4.63 ± 1.06). By week 4, tear secretion improved in the LE (4.38 ± 0.52 mm) and in the C. majus 1/1 (4.56 ± 0.56 mm), 1/10 (4.88 ± 0.52 mm), and 1/100 (4.56 ± 0.50 mm) groups, approaching values observed in the control group. CSS decreased markedly in the C. majus 1/10 (0.38 ± 0.52) and LE (1.13 ± 0.83) groups, whereas the DED group remained elevated (2.38 ± 0.52). Corneal sensitivity improved in the LE and C. majus 1/1 (3.44 ± 0.42 mm), 1/10 (3.75 ± 0.27 mm), and 1/100 (3.50 ± 0.46 mm) groups. Inflammatory cytokines and MMP-2/9 levels decreased significantly across treatment groups, with the most pronounced reductions observed in the C. majus 1/10 group. Histopathological analysis revealed better preservation of stromal architecture and reduced inflammatory infiltration in treated groups compared with the DED group.

conclusionsChelidonium majus latex demonstrated significant anti-inflammatory and tissue-protective effects in this experimental model, supporting further investigation as a potential adjunctive approach in inflammatory DED.

Indexed as

Chelidonium majusCorneaDry Eye SyndromesPhytotherapyPlant ExtractsTearsAnimalsBenzalkonium CompoundsCytokinesDisease Models, AnimalEnzyme-Linked Immunosorbent AssayMaleRatsRats, WistarBenzalkonium CompoundsCytokinesPlant ExtractsAquaporinsChelidonium majusDry eye diseaseLoteprednol etabonateMatrix metalloproteinasesRat

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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.