Evidence map›Paper›PMID 30592499›Full record

ArticleInvestigative ophthalmology & visual science2018

Clinically Relevant Immune-Cellular Metrics of Inflammation in Meibomian Gland Dysfunction.

Yureeda Qazi, Ahmad Kheirkhah, Caroline Blackie, Monique Trinidad, Candice Williams, Andrea Cruzat, Donald R Korb, Pedram Hamrah

Open access · goldAbstract readValidation Study
In one paragraph

Article in Investigative ophthalmology & visual science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Urban Particulate Matter Triggers Meibomian Gland Dysfunction.Investigative ophthalmology & visual science · 2024
    Article
  7. Meibomian Gland Dysfunction Clinical Practice Guidelines.Japanese journal of ophthalmology · 2023
    Article
  8. Article
  9. Review
  10. Article
  11. Automation of dry eye disease quantitative assessment: A review.Clinical & experimental ophthalmology · 2022
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. 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

8 authors at 4 institutions in 1 country.

Yureeda QaziOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Ahmad KheirkhahOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Caroline BlackieKorb and Associates, Boston, Massachusetts, United States.
Monique TrinidadOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Candice WilliamsOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Andrea CruzatOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Donald R KorbKorb and Associates, Boston, Massachusetts, United States.
Pedram HamrahOcular Surface Imaging Center, Cornea Service, Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States.
Imaging Center · USAbt Global (United States) · USHarvard University · USMassachusetts Eye and Ear Infirmary · US

Funding

Immunobiology of Corneal Antigen-Presenting CellsK08EY020575 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI HAMRAH, PEDRAM · 2010 to 2013
$914k
NEI NIH HHS K08 EY020575NEI NIH HHS L30 EY021919
6 · The paper itself

Abstract

Purpose: To determine the reliability and clinical relevance of in vivo confocal microscopy (IVCM)-based immune-cellular metrics of palpebral conjunctival inflammation in meibomian gland dysfunction (MGD). Methods: Sixteen MGD patients and 13 reference controls included in this cross-sectional, retrospective study, had an ocular surface exam, symptom assessment (Ocular Surface Disease Index questionnaire [OSDI]), and palpebral conjunctival IVCM imaging. Bland-Altman analyses, intraclass correlation coefficient (ICCa), Lin's concordance correlation coefficient (ρc), receiver operating characteristic (ROC) analyses, and correlations were performed. Clinical outcome measures were symptom severity (OSDI scores), tear break-up time (TBUT), and corneal fluorescein staining (CFS grade). Results: Compared to controls, patients with MGD had variable symptom severity (average OSDI score: 48.3 ± 7.6, P = 0.0008, range: 8.3-85.42), shorter TBUT (6.8 ± 0.9 seconds, P = 0.002), comparable corneal staining (0.31 ± 0.19, P = 0.20), and greater conjunctival inflammation (epithelial immune cells [EIC]: 477.8 ± 54.2 vs. 123.3 ± 17.2 cells/mm2, P < 0.0001; intraglandular immune cells [IGIC]: 41.9 ± 3.3% vs. 20.33 ± 7.3%, P < 0.01). Immune-cellular metrics had high inter- and intraobserver agreement (ρc: 0.86-0.94; ICCa and Cronbach's α: 0.85-0.97, P < 0.0001). EIC correlated positively with OSDI (rs: 0.49, P = 0.03), while both EIC and IGIC correlated inversely with TBUT (rs: -0.47, -0.45, P < 0.05), and had high accuracy in detecting inflammation (ROC area under the curve [AUC]: 0.97 and 0.89, P ≤ 0.001). Conclusions: EIC and IGIC are increased in highly symptomatic patients with MGD that have minimal corneal staining, and correlate with symptoms and clinical signs. EIC and IGIC may provide reliable and clinically relevant metrics of inflammation.

Indexed as

AdultCell CountConjunctivitisCross-Sectional StudiesEpithelial CellsEyelid DiseasesFemaleHumansInflammationMaleMeibomian GlandsMicroscopy, ConfocalMiddle AgedRetrospective StudiesStromal Cells

Identifiers

PMID30592499
PMCPMC6314224
OpenAlexW2907182903

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.