Evidence map›Paper›PMID 27136463›Full record

ArticleInvestigative ophthalmology & visual science2016

Inflammatory Response to Lipopolysaccharide on the Ocular Surface in a Murine Dry Eye Model.

Ken T Simmons, Yangyan Xiao, Stephen C Pflugfelder, Cintia S de Paiva

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Translating Biomarker Discovery: From Bench to Bedside in Dry Eye Disease.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Article
  5. Anti-inflammatory effects of LCB 03-0110 on human corneal epithelial and murine T helper 17 cells.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Innate Immune System Activation, Inflammation and Corneal Wound Healing.International journal of molecular sciences · 2022
    Review
  10. Article
  11. Article
  12. Review
  13. Lipopolysaccharide Enhances Genotoxicity by Activating GADD45G and NF-Oxidative medicine and cellular longevity · 2022
    Article
  14. Article
  15. Conjunctival Commensal Isolation and Identification in Mice.Journal of visualized experiments : JoVE · 2021
    Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Dysbiosis Modulates Ocular Surface Inflammatory Response to Liposaccharide.Investigative ophthalmology & visual science · 2019
    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 2 countries.

Ken T SimmonsOcular Surface Center Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States.
Yangyan XiaoOcular Surface Center Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States 2Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Stephen C PflugfelderOcular Surface Center Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States.
Cintia S de PaivaOcular Surface Center Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States.
Baylor College of Medicine · USOcular Surface Center · US

Funding

VISION RESEARCH CENTERP30EY002520 · NEI · BAYLOR COLLEGE OF MEDICINE · PI Samuel M Wu · 1985 to 2026
$14.8M
PATHOGENESIS OF CONJUNCTIVAL SQUAMOUS METAPLASIAR01EY011915 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI PFLUGFELDER, STEPHEN C · 1997 to 2023
$8.0M
Core Grant for Vision ResearchP30EY020799 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI NIEDERKORN, JERRY · 2010 to 2016
$4.1M
VISUAL SCIENCEST32EY007001 · NEI · BAYLOR COLLEGE OF MEDICINE · PI Samuel M Wu · 1985 to 2026
$3.7M
NEI NIH HHS P30 EY002520NEI NIH HHS P30 EY020799NEI NIH HHS R01 EY011915NEI NIH HHS T32 EY007001
6 · The paper itself

Abstract

purposeToll-like receptor 4 (TLR4) alerts cells to the presence of bacteria by initiating an inflammatory response. We hypothesize that disruption of the ocular surface barrier in dry eye enhances TLR4 signaling. This study determined whether dry eye enhances expression of inflammatory mediators in response to topically applied TLR4 ligand.

methodsA single dose of lipopolysaccharide (LPS) or vehicle (endotoxin-free water) was applied to the cornea of nonstressed (NS) mice or mice subjected to 5 days of desiccating stress (DS). After 4 hours, corneal epithelium and conjunctiva were extracted to analyze expression of inflammatory mediators via PCR. Protein expression was confirmed by immunobead assay and immunostaining.

resultsTopically applied LPS increased expression of inflammatory mediators IL-1β, CXCL10, IL-12a, and IFN-γ in the conjunctiva, and IL-1β and CXCL10 in the cornea of NS mice compared to that in untreated controls. LPS in DS mice produced 3-fold increased expression of IL-1β in cornea and 2-fold increased expression in IL-12a in conjunctiva compared to that in LPS-treated control mice.

conclusionsLPS increased expression of inflammatory cytokines on the ocular surface. This expression was further increased in dry eye, which suggests that epithelial barrier disruption enhances exposure of LPS to TLR4+ cells and that the inflammatory response to endotoxin-producing commensal or pathogenic bacteria may be more severe in dry eye disease.

Indexed as

AnimalsCells, CulturedConjunctivaCorneaCytokinesDisease Models, AnimalDry Eye SyndromesFemaleGene Expression RegulationImmunohistochemistryInflammationLipopolysaccharidesMiceMice, Inbred C57BLReal-Time Polymerase Chain ReactionRNACytokinesLipopolysaccharidesRNAToll-Like Receptor 4

Identifiers

PMID27136463
PMCPMC4857831
OpenAlexW2347003097

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.