Evidence map›Paper›PMID 21849420›Full record

ArticleInvestigative ophthalmology & visual science2011

Analysis of the composition of lipid in human meibum from normal infants, children, adolescents, adults, and adults with meibomian gland dysfunction using ¹H-NMR spectroscopy.

Rashmi K Shrestha, Douglas Borchman, Gary N Foulks, Marta C Yappert, Sarah E Milliner

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
6.6field-weighted citation impact, top 4% 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

51 citing papers in PubMed, 70 citations in OpenAlex.

  1. Diurnal Variation of Tear and Meibum Lipids in Healthy Subjects.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Changes in Human Meibum Lipid Composition Related to the Presence and Severity of Meibomian Gland Dysfunction.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2024
    Article
  7. Article
  8. Meibomian Gland Shortening Is Associated With Altered Meibum Composition.Investigative ophthalmology & visual science · 2024
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Meibomian Gland Dysfunction Clinical Practice Guidelines.Japanese journal of ophthalmology · 2023
    Article
  15. Review
  16. Effects of Aging on Human Meibum.Investigative ophthalmology & visual science · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Review
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

5 authors at 1 institution in 1 country.

Rashmi K ShresthaDepartment of Ophthalmology and Visual Sciences, University of Louisville, Louisville, Kentucky, USA.
Douglas Borchman
Gary N Foulks
Marta C Yappert
Sarah E Milliner
University of Louisville · US

Funding

Lipids and the Human Tear FilmR01EY017094 · NEI · UNIVERSITY OF LOUISVILLE · PI FOULKS, GARY N · 2006 to 2010
$1.3M
NEI NIH HHS EY017094-01NEI NIH HHS R01 EY017094
6 · The paper itself

Abstract

purposeThis study represents a first step toward the evaluation of possible compositional differences in meibum from normal donors (Mn) and donors with meibomian gland dysfunction (Md) by (1)H-NMR spectroscopy. The results highlight the applicability of (1)H-NMR spectroscopy for the quantitative analysis of waxes, cholesteryl esters, and glycerides in meibum lipid (ML).

methodsMeibum was obtained from 41 normal donors and 51 donors with meibomian gland dysfunction (MGD). (1)H-NMR spectroscopy was used to quantify the amount of waxes, glycerides, and cholesteryl esters in human meibum.

resultsThe relative amount of cholesteryl esters in Mn increased with age and was 40% (P < 0.05) lower in Md. Interestingly, the relative levels of cholesteryl esters in infant meibum were comparable to those in Md. The relative amounts of glycerides were not affected significantly by age or MGD.

conclusionsThe changes in cholesteryl ester could be used as a molecular marker for MGD and could potentially be applied to follow the efficacy of drug therapy in the treatment of MGD. The similarity of the levels of cholesteryl esters in infant meibum and Md suggests that the relative amounts of these meibum components alone are unlikely to be responsible for the increased stability of the infant tear film and decreased stability of the tear film with MGD. This study reveals the complexity of human MLs and the changes that occur with age and disease. Understanding the factors that lead to such variations is of utmost relevance in the design of effective therapies.

Indexed as

AdolescentAdultAgedAged, 80 and overAgingChildChild, PreschoolCholesterol EstersEyelid DiseasesFemaleHumansInfantMaleMeibomian GlandsMiddle AgedNuclear Magnetic Resonance, BiomolecularCholesterol EstersTriglyceridesWaxes

Identifiers

PMID21849420
PMCPMC3183971
OpenAlexW2015453062

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.