Evidence map›Paper›PMID 28669846›Full record

ReviewExperimental eye research2017

Meibomian glands, meibum, and meibogenesis.

Igor A Butovich

Open access · greenAbstract readReview
In one paragraph

Review in Experimental eye research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

97 citing papers in PubMed, 157 citations in OpenAlex.

  1. Article
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  6. Review
  7. Review
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  12. A Novel Rat Model for Human Meibomian Gland Dysfunction and Ocular Rosacea.Investigative ophthalmology & visual science · 2026
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Abnormal Meibum Is Associated WithmedRxiv : the preprint server for health sciences · 2025
    Article

37 more citing papers are in PubMed but not listed here.

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

1 author at 1 institution in 1 country.

Igor A ButovichDepartment of Ophthalmology and the Graduate School of Biomedical Sciences, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9057, United States. Electronic address: igor.butovich@utsouthwestern.edu.
The University of Texas Southwestern Medical Center · US

Funding

Core Grant for Vision ResearchP30EY020799 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI NIEDERKORN, JERRY · 2010 to 2016
$4.1M
Biochemistry and Biophysics of the Preocular Tear FilmR01EY019480 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI BUTOVICH, IGOR A · 2010 to 2014
$1.7M
Biosynthesis and physiological roles of extremely long chain lipids in the eyeR01EY024324 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI BUTOVICH, IGOR A · 2016 to 2019
$1.6M
NEI NIH HHS P30 EY020799NEI NIH HHS R01 EY019480NEI NIH HHS R01 EY024324
6 · The paper itself

Abstract

Meibum is a lipid-rich secretion that is produced by fully differentiated meibocytes in the holocrine Meibomian glands (MG) of humans and most mammals. The secretion is a part of a defense mechanism that protects the ocular surface from hazardous environmental factors, and from desiccation. Meibomian lipids that have been identified in meibum are very diverse and unique in nature. The lipid composition of meibum is different from virtually any other lipid pool found in the human body. In fact, meibum is quite different from sebum, which is the closest secretion that is produced by anatomically, physiologically, and biochemically related sebaceous glands. However, meibum of mice have been shown to closely resemble that of humans, implying similar biosynthetic mechanisms in MG of both species. By analyzing available genomic, immunohistochemical, and lipidomic data, we have envisioned a unifying network of enzymatic reactions that are responsible for biosynthesis of meibum, which we call meibogenesis. Our current theory is based on an assumption that most of the biosynthetic reactions of meibogenesis are catalyzed by known enzymes. However, the main features that make meibum unique - the ratio of identified classes of lipids, the extreme length of its components, extensive ω-hydroxylation of fatty acids and alcohols, iso- and anteiso-branching of meibomian lipids (e.g. waxes), and the presence of rather unique complex lipids with several ester bonds - make it possible that either the activity of known enzymes is altered in MG, or some unknown enzymes contribute to the processes of meibogenesis, or both. Studies are in progress to elucidate meibogenesis on molecular level.

Indexed as

Bodily SecretionsHumansLipid MetabolismLipidsMeibomian GlandsTearsLipids

Identifiers

PMID28669846
PMCPMC5728685
OpenAlexW2728179512

What OpenQuestion holds

Textmetadata
LicenceTDM
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.