Evidence map›Paper›PMID 29236588›Full record

ArticleJournal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics2018

Topical Glycyrrhizin Is Therapeutic for Pseudomonas aeruginosa Keratitis.

Sandamali A Ekanayaka, Sharon A McClellan, Ronald P Barrett, Linda D Hazlett

Open access · greenAbstract read
In one paragraph

Article in Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact, top 100% 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

20 citing papers in PubMed, 1 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. PMFrontiers in cellular and infection microbiology · 2023
    Article
  5. Article
  6. Glycyrrhizin Interacts with TLR4 and TLR9 to ResolvePathogens (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Review
  9. The potential of glycyrrhizin and licorice extract in combating COVID-19 and associated conditions.Phytomedicine plus : international journal of phytotherapy and phytopharmacology · 2021
    Review
  10. Article
  11. Ocular Effects of Glycyrrhizin at Acidic and Neutral pH.Frontiers in cellular and infection microbiology · 2021
    Article
  12. Effects of Glycyrrhizin on Multi-Drug ResistantPathogens (Basel, Switzerland) · 2020
    Article
  13. Article
  14. Airborne Particulates Affect Corneal Homeostasis and Immunity.Investigative ophthalmology & visual science · 2020
    Article
  15. Article
  16. Article
  17. HMGB1 Antagonist, Box A, Reduces TLR4, RAGE, and Inflammatory Cytokines in the Cornea of P. aeruginosa-Infected Mice.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2018
    Article
  18. Review
  19. Non-antibiotic management of bacterial keratitis.Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society
    Article
  20. Effects of Glycyrrhizin Treatment on Diabetic Cornea.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics
    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

4 authors at 2 institutions in 1 country.

Sandamali A EkanayakaDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine , Detroit, Michigan.
Sharon A McClellanDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine , Detroit, Michigan.
Ronald P BarrettDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine , Detroit, Michigan.
Linda D HazlettDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine , Detroit, Michigan.
Michigan United · USWayne State University · US

Funding

VISION RESEARCH--COREP30EY004068 · NEI · WAYNE STATE UNIVERSITY · PI LINDA D HAZLETT · 1985 to 2026
$13.2M
Role of Toll-Like Receptors in Bacterial KeratitisR01EY016058 · NEI · WAYNE STATE UNIVERSITY · PI HAZLETT, LINDA D · 2005 to 2023
$6.0M
NEI NIH HHS P30 EY004068NEI NIH HHS R01 EY016058
6 · The paper itself

Abstract

purposeGlycyrrhizin (GLY), an inhibitor of high-mobility group box 1 (HMGB1) protects prophylactically against Pseudomonas aeruginosa keratitis. However, the therapeutic potential of GLY to enhance an antibiotic has not been tested and is our purpose.

methodsC57BL/6 mice (B6) were infected with a clinical isolate (KEI 1025) of P. aeruginosa and treated topically at 6 h postinfection (p.i.) with GLY or phosphate-buffered saline (PBS). Clinical scores, photography with a slit lamp, enzyme-linked immunosorbent assay, myeloperoxidase assay, bacterial plate counts, histopathology, reactive oxygen/nitrogen species (ROS/RNS) assays, and in vitro macrophage (Mφ) stimulation assays were used to assess effects of GLY treatment. In separate similar experiments, the ability of GLY to bioenhance the antibiotic, tobramycin (TOB), was assessed.

resultsIn vivo, GLY versus PBS topical treatment began at 6 h p.i., improved disease outcome by significantly reducing clinical scores, proinflammatory proteins (HMGB1, RAGE, TLR4, TNF-α, and CXCL2), neutrophil infiltrate, bacterial load, ROS/RNS, and nitric oxide. In vitro, GLY downregulated iNOS and COX-2 expression (mRNA) in both mouse and human (THP-1) Mφ. At 6 and 24 h p.i., treatment with GLY enhanced the effects of TOB compared with TOB alone by significantly reducing corneal bacterial load and/or protein levels of cytokines CXCL2 and IL-1β.

conclusionsData provide evidence that GLY is not only therapeutic for Pseudomonas keratitis through its ability to reduce HMGB1, bacterial load, and oxidative damage but also through its bioenhancement of an antibiotic, even when treatment is initiated at 24 h after infection.

Indexed as

Administration, TopicalAnimalsAnti-Bacterial AgentsFemaleGlycyrrhizic AcidKeratitisMiceMice, Inbred C57BLPseudomonas aeruginosaPseudomonas InfectionsAnti-Bacterial AgentsGlycyrrhizic AcidglycyrrhizinHMGB1keratitismicePseudomonastopical treatment

Identifiers

PMID29236588
PMCPMC5899296
OpenAlexW2738368468

What OpenQuestion holds

Textmetadata
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.