Evidence map›Paper›PMID 10026314›Full record

ArticleGut1999

Oesophageal epithelial innervation in health and reflux oesophagitis.

M Newton, M A Kamm, P O Soediono, P Milner, W R Burnham, G Burnstock

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact, top 93% 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

11 citing papers in PubMed, 24 citations in OpenAlex.

  1. Immune functions of the esophagus.The Journal of allergy and clinical immunology · 2026
    Review
  2. Article
  3. The oesophagus as an immune organ.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  4. Review
  5. Review
  6. Article
  7. Observational
  8. Distinct afferent innervation patterns within the human proximal and distal esophageal mucosa.American journal of physiology. Gastrointestinal and liver physiology · 2015
    Article
  9. Acid burn or cytokine sizzle in the pathogenesis of heartburn?Journal of gastroenterology and hepatology · 2013
    Article
  10. Review
  11. From Reflux Esophagitis to Esophageal Adenocarcinoma.Digestive diseases (Basel, Switzerland)
    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

6 authors at 2 institutions in 1 country.

M NewtonDepartment of Physiology, St Mark's Hospital, Northwick Park, Watford Road, Harrow, Middlesex HA1 3UJ, UK.
M A Kamm
P O Soediono
P Milner
W R Burnham
G Burnstock
St Mark's Hospital · GBThe Royal Free Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe response of the oesophagus to refluxed gastric contents is likely to depend on intact neural mechanisms in the oesophageal mucosa. The epithelial innervation has not been systematically evaluated in health or reflux disease.

aimsTo study oesophageal epithelial innervation in controls, and also inflamed and non-inflamed mucosa in patients with reflux oesophagitis and healed oesophagitis. PATIENTS: Ten controls, nine patients with reflux oesophagitis, and five patients with healed oesophagitis.

methodsOesophageal epithelial biopsy specimens were obtained at endoscopy. The distribution of the neuronal marker protein gene product 9.5 (PGP), and the neuropeptides calcitonin gene related peptide (CGRP), neuropeptide Y (NPY), substance P (SP), and vasoactive intestinal peptide (VIP) were investigated by immunohistochemistry. Density of innervation was assessed by the proportion of papillae in each oesophageal epithelial biopsy specimen containing immunoreactive fibres (found in the subepithelium and epithelial papillae, but not penetrating the epithelium).

resultsThe proportion of papillae positive for PGP immunoreactive nerve fibres was significantly increased in inflamed tissue when compared with controls, and non-inflamed and healed tissue. There was also a significant increase in VIP immunoreactive fibres within epithelial papillae. Other neuropeptides showed no proportional changes in inflammation.

conclusionsEpithelial biopsy specimens can be used to assess innervation in the oesophagus. The innervation of the oesophageal mucosa is not altered in non-inflamed tissue of patients with oesophagitis but alters in response to inflammation, where there is a selective increase (about three- to fourfold) in VIP containing nerves.

Indexed as

AdultAgedAged, 80 and overBiomarkersBiopsyCase-Control StudiesEsophagitis, PepticEsophagusFemaleHumansMaleMiddle AgedMucous MembraneProteinsBiomarkersProteins

Identifiers

PMID10026314
PMCPMC1727420
OpenAlexW1991804894

What OpenQuestion holds

Texttitle and abstract
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.