Evidence map›Paper›PMID 8977341›Full record

ArticleGut1996

The epidermal growth factor receptor (EGF-R) is present on the basolateral, but not the apical, surface of enterocytes in the human gastrointestinal tract.

R J Playford, A M Hanby, S Gschmeissner, L P Peiffer, N A Wright, T McGarrity

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
10.2field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 158 citations in OpenAlex.

  1. Trial
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  5. Article
  6. Article
  7. Larazotide acetate: a pharmacological peptide approach to tight junction regulation.American journal of physiology. Gastrointestinal and liver physiology · 2021
    Review
  8. Review
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  10. Article
  11. Glucose transporters in the small intestine in health and disease.Pflugers Archiv : European journal of physiology · 2020
    Review
  12. Article
  13. Article
  14. Review
  15. Article
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  19. Article
  20. Transformation of polarized epithelial cells by apical mistrafficking of epiregulin.Proceedings of the National Academy of Sciences of the United States of America · 2013
    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

6 authors at 1 institution in 2 countries.

R J PlayfordDepartment of Medicine and Therapeutics, University of Leicester.
A M Hanby
S Gschmeissner
L P Peiffer
N A Wright
T McGarrity
University of Leicester · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundWhile it is clear that luminal epidermal growth factor (EGF) stimulates repair of the damaged bowel, its significance in maintaining normal gut growth remains uncertain. If EGF is important in maintaining normal gut growth, the EGF receptor (EGF-R) should be present on the apical (luminal) surface in addition to the basolateral surface. AIMS/SUBJECTS/

methodsThis study examined the distribution of the EGF-R in the epithelium throughout the human gastro-intestinal tract using immunohistochemistry, electron microscopy, and western blotting of brush border preparations.

resultsImmunostaining of the oesophagus showed circumferential EGF-R positivity in the cells of the basal portions of the stratified squamous epithelium but surface cells were EGF-R negative. In the normal stomach, small intestine, and colon, immunostaining localised the receptor to the basolateral surface with the apical membranes being consistently negative. EGF-R positivity within the small intestine appeared to be almost entirely restricted to the proliferative (crypt) region. Western blotting demonstrated a 170 kDa protein in whole tissue homogenates but not in the brush border vesicle preparations.

conclusionsAs the EGF-R is located only on the basolateral surfaces in the normal adult gastrointestinal tract, the major role of luminal EGF is probably to stimulate repair rather than to maintain normal gut growth.

Indexed as

Blotting, WesternErbB ReceptorsHumansImmunohistochemistryIntestinal MucosaMicroscopy, ElectronErbB Receptors

Identifiers

PMID8977341
PMCPMC1383309
OpenAlexW2139916512

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.