Evidence map›Paper›PMID 8903332›Full record

ArticleThe Journal of clinical investigation1996

Dynamic effects of acid on Barrett's esophagus. An ex vivo proliferation and differentiation model.

R C Fitzgerald, M B Omary, G Triadafilopoulos

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 2 pooled it
8.9field-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

88 citing papers in PubMed, 2 syntheses or guidelines pooled it, 318 citations in OpenAlex.

  1. Treatment for Barrett's oesophagus.The Cochrane database of systematic reviews · 2010
    Pooled it
  2. Pooled it
  3. Barrett's esophagus: A review.World journal of gastrointestinal pathophysiology · 2025
    Review
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  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Past, present and future of Barrett's oesophagus.European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology · 2017
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

28 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

3 authors at 2 institutions in 1 country.

R C FitzgeraldGastroenterology Section, Palo Alto Veterans Affairs Health Care System, California 94304, USA.
M B Omary
G Triadafilopoulos
Stanford University · USUniversity Gastroenterology · US

Funding

GASTROINTESTINAL MEMBRANE RECEPTORSP30DK038707 · NIDDK · STANFORD UNIVERSITY · PI GRAY, GARY M. · 1987 to 1997
–
NIDDK NIH HHS DK38707
6 · The paper itself

Abstract

Barrett's esophagus (BE), or specialized intestinal metaplasia, is a premalignant heterogeneous epithelium associated with reflux and an increased risk for adenocarcinoma. Since acid is a major component of refluxate, we investigated its effects ex vivo on cell differentiation as determined by villin expression; and on cell proliferation, as determined by tritiated thymidine incorporation and proliferating cell nuclear antigen expression. To mimic known physiological conditions, endoscopic biopsies of normal esophagus, BE, and duodenum were exposed, in organ culture, to acidified media (pH 3-5) either continuously, or as a 1-h pulse and compared with exposure to pH 7.4 for up to 24 h. Before culture, villin expression was noted in 25% of BE samples, and increased after 6 or 24 h of continuous acid to 50% or 83% of BE samples, respectively. Increased villin expression correlated with ultrastructural maturation of the brush border. In contrast, an acid-pulse followed by culture at pH 7.4, did not alter villin expression in BE. Moreover, continuous acid exposure blocked cell proliferation in BE, whereas, an acid-pulse enhanced cell proliferation, as compared to pH 7.4. Based on our ex vivo findings, we propose a model in which the diverse patterns of acid exposure in vivo may contribute to the observed heterogeneity and unpredictable progression to neoplasia of BE.

Indexed as

Barrett EsophagusBiopsyCarrier ProteinsCell DifferentiationCell DivisionCell SurvivalDuodenumEsophagusHumansHydrochloric AcidHydrogen-Ion ConcentrationMicrofilament ProteinsMicrovilliOrgan Culture TechniquesProliferating Cell Nuclear AntigenTime FactorsCarrier ProteinsHydrochloric AcidMicrofilament ProteinsProliferating Cell Nuclear Antigenvillin

Identifiers

PMID8903332
PMCPMC507657
OpenAlexW1966130491

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.