Evidence map›Paper›PMID 19391063›Full record

ArticleScandinavian journal of gastroenterology2009

Gene expression in Barrett's esophagus: laser capture versus whole tissue.

Hashem B El-Serag, Zhannat Z Nurgalieva, Toni-Ann Mistretta, Milton J Finegold, Rhonda Souza, Susan Hilsenbeck, Chad Shaw, Gretchen Darlington

Abstract readComparative Study
In one paragraph

Article in Scandinavian journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. SIVQ-LCM protocol for the ArcturusXT instrument.Journal of visualized experiments : JoVE · 2014
    Article
  13. Article
  14. Article
  15. EGFR and KRAS mutation analysis in cytologic samples of lung adenocarcinoma enabled by laser capture microdissection.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2012
    Article
  16. Article
  17. Review
  18. Why is it crucial to reintegrate pathology into cancer research?BioEssays : news and reviews in molecular, cellular and developmental biology · 2011
    Article
  19. Article
  20. 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

8 authors.

Hashem B El-SeragMichael E. DeBakey Veterans Administration Medical Center and Baylor College of Medicine, Houston, Texas, USA. hasheme@bcm.tmc.edu
Zhannat Z Nurgalieva
Toni-Ann Mistretta
Milton J Finegold
Rhonda Souza
Susan Hilsenbeck
Chad Shaw
Gretchen Darlington

Funding

Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Geoffrey A Preidis · 2001 to 2026
$28.3M
Obesity, H pylori and Risk of Barrett's EsophagusR01CA116845 · NCI · BAYLOR COLLEGE OF MEDICINE · PI EL-SERAG, HASHEM B · 2007 to 2011
$2.8M
Gene Expression in Barrett's EsophagusR21DK067366 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI EL-SERAG, HASHEM B · 2005 to 2006
$296k
NCI NIH HHS R01 CA116845NIDDK NIH HHS DK 56338NIDDK NIH HHS P30 DK056338NIDDK NIH HHS R21 DK067366NIDDK NIH HHS R21 DK 067366-02
6 · The paper itself

Abstract

objectiveDiagnosis of Barrett's esophagus (BE) is typically done through morphologic analysis of esophageal tissue biopsy. Such samples contain several cell types. Laser capture microdissection (LCM) allows the isolation of specific cells from heterogeneous cell populations. The purpose of this study was to determine the degree of overlap of the two sample types and to define a set of genes that might serve as biochemical markers for BE. MATERIAL AND

methodsBiopsies were obtained from regions of the glandular tissue of BE and normal esophagus from 9 subjects with BE. Samples from 5 subjects were examined as whole tissue (BE [whole]; E [whole]), and in 4 subjects the glandular epithelium of BE was isolated using LCM (BE [LCM]) and compared with the averaged values (E [LCM]) for both basal cell (B [LCM]) and squamous cell (S [LCM]) epithelium.

resultsGene expression revealed 1797 probe sets between BE [whole] and E [whole] (fold change > 2.0; p<0.001). Most of these genes (74%) were also differentially expressed between BE [LCM] and E [LCM], showing that there was high concordance between the two sampling methods. LCM provided a great deal of additional information (2113 genes) about the alterations in gene expression that may represent the BE phenotype.

conclusionsThere are differences in gene expression profiles depending on whether specimens are whole tissue biopsies or LCM dissected. Whole tissue biopsies should prove satisfactory for diagnostic purposes. Because the data from LCM samples delineated many more Barrett's-specific genes, this procedure might provide more information regarding pathogenesis than would whole tissue material.

Indexed as

Gene Expression ProfilingLasersAnalysis of VarianceBarrett EsophagusBiomarkersBiopsyEsophagoscopyGene Expression Regulation, NeoplasticHumansMicrodissectionBiomarkers

Identifiers

PMID19391063
PMCPMC2822542

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Registered trials

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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.