Evidence map›Paper›PMID 14977773›Full record

ArticleThe British journal of ophthalmology2004

Human preocular mucins reflect changes in surface physiology.

M Berry, R B Ellingham, A P Corfield

Open access · bronzeAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 39 citations in OpenAlex.

  1. [Analysis of ocular surface alterations following proton beam radiation in eyes with conjunctival malignant melanoma].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2006
    Trial
  2. Article
  3. Human ocular mucins: The endowed guardians of sight.Advanced drug delivery reviews · 2022
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Glycobiology of the ocular surface: mucins and lectins.Japanese journal of ophthalmology · 2013
    Review
  11. Article
  12. Article
  13. Functions of ocular surface mucins in health and disease.Current opinion in allergy and clinical immunology · 2008
    Review
  14. Review
  15. Article
  16. Article
  17. MUC5AC overexpression in tear film of neonates.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2007
    Article
  18. Assay of mucins in human tear fluid.Experimental eye research · 2007
    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

3 authors at 1 institution in 1 country.

M BerryDivision of Ophthalmology, University of Bristol, Bristol Eye Hospital, Lower Maudlin Street, Bristol BS1 2LX, UK. man.berry@bristol.ac.uk
R B Ellingham
A P Corfield
University of Bristol · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

BACKGROUND/

aimsMucin function is associated with both peptide core and glycosylation characteristics. The authors assessed whether structural alterations occurring during mucin residence in the tear film reflect changes in ocular surface physiology.

methodsOcular surface mucus was collected from normal volunteers as N-acetyl cysteine (NAcCys) washes or directly from the speculum after cataract surgery. To assess the influence of surface health on mucins, NAcCys washings were also obtained from patients with symptoms, but no clinical signs of dry eye (symptomatics). Mucins were extracted in guanidine hydrochloride (GuHCl) with protease inhibitors. Buoyant density of mucin species, a correlate of glycosylation density, was followed by reactivity with anti-peptide core antibodies. Mucin hydrodynamic volume was assessed by gel filtration on Sepharose CL2B.

resultsSurface fluid and mucus contained soluble forms of MUC1, MUC2, MUC4, and MUC5AC and also the same species requiring DTT solubilisation. Reactivity with antibodies to MUC2 and MUC5AC peaked at 1.3-1.5 g/ml in normals, while dominated by underglycosylated forms in symptomatics. Surface mucins were predominantly smaller than intracellular species. MUC2 size distributions were different in symptomatics and normals, while those of MUC5AC were similar in these two groups.

conclusionsA reduction in surface mucin size indicates post-secretory cleavage. Dissimilarities in surface mucin glycosylation and individual MUC size distributions in symptomatics suggest changes in preocular mucin that might precede dry eye signs.

Indexed as

BiomarkersConjunctivaHumansMucin-2Mucin 5ACMucinsTearsBiomarkersMUC2 protein, humanMUC5AC protein, humanMucin-2Mucin 5ACMucins

Identifiers

PMID14977773
PMCPMC1772032
OpenAlexW1994489351

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.