Evidence map›Paper›PMID 19473210›Full record

ArticleDiseases of the esophagus : official journal of the International Society for Diseases of the Esophagus2009

Endoscopic evaluation of esophago-gastro-jejunostomy in rat model of Barrett's esophagus.

S Lu, A W Lowe, G Triadafilopoulos, P-L Hsiung, Y Hao, J M Crawford, T D Wang

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

6 citing papers in PubMed, 15 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

S LuDivision of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA.
A W Lowe
G Triadafilopoulos
P-L Hsiung
Y Hao
J M Crawford
T D Wang
Stanford University · USFirst Affiliated Hospital of Xi'an Jiaotong University · CNUniversity of Florida · USUniversity of Michigan–Ann Arbor · US

Funding

Proteomics/GenomicsP30DK056339 · NIDDK · STANFORD UNIVERSITY · PI GREENBERG, HARRY BERNARD · 2001 to 2010
$10.4M
Novel Molecular Targets of Neoplasia in the EsophagusU54CA105296 · NCI · STANFORD UNIVERSITY · PI TRIADAFILOPOULOS, GEORGE · 2004 to 2008
$5.7M
Task Specific Project 4U54CA136429 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI REHEMTULLA, ALNAWAZ · 2008 to 2012
$5.2M
Epithelial-Refluxate Interactions in Barrett's EsophagusR01DK063624 · NIDDK · STANFORD UNIVERSITY · PI LOWE, ANSON W · 2002 to 2011
$3.3M
Miniature Confocal Theta Flourescence MicroscopeR33CA109988 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WANG, THOMAS D · 2005 to 2007
$1.1M
Novel Confocal Microscope for Molecular/Cellular ImagingK08DK067618 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WANG, THOMAS D · 2003 to 2007
$607k
NCI NIH HHS R33 CA109988NCI NIH HHS U54 CA105296NCI NIH HHS U54 CA136429NIDDK NIH HHS K08 DK067618NIDDK NIH HHS P30 DK056339NIDDK NIH HHS P30 DK56339NIDDK NIH HHS R01 DK063624
6 · The paper itself

Abstract

Endoscopy can be used to monitor the onset of metaplastic transformation and to observe the progression of neoplasia in small animal models of Barrett's esophagus. By avoiding animal sacrifice, the natural history of this disease can be studied in a longitudinal fashion. We aim to characterize the endoscopic features of esophageal mucosa at various stages of the metaplasia-dysplasia-carcinoma sequence in a rat reflux model of Barrett's for comparison with histology. Acid and bile reflux was produced by introducing a side-to-side esophago-gastro-jejunostomy in Sprague-Dawley rats. Endoscopic examination of the distal esophagus was performed in 24 surgically altered and 4 control rats, between weeks 24 and 36 after the operation in 4-week intervals, and all rats were biopsied and sacrificed at 36 weeks. Endoscopic images were classified based on the surface mucosal patterns of the distal esophagus and then compared with histology. The endoscopic appearance was classified as: (i) normal, characterized by a smooth surface; (ii) intestinal metaplasia, defined as elevated plaques/ridges, deep grooves, and thin linear folds; (iii) dysplasia, indicated by coarse folds/grooves, meshlike villi, and foveolar appearance; and (iv) carcinoma, suggested by irregular-shaped mass lesions with ulcerations. The endoscopic criteria for intestinal metaplasia yielded a sensitivity of 100% in comparison with histology. Intestinal metaplasia with high-grade dysplasia was found in two rats and with low-grade dysplasia in three rats. Both focally invasive squamous cell carcinoma and invasive adenocarcinoma were found in one rat. Small animal endoscopy in a rat model of Barrett's esophagus can be used to perform surveillance, classify mucosal patterns, observe the onset of intestinal metaplasia, and monitor the progression of neoplastic transformation, representing a useful tool for studying the natural history of this disease.

Indexed as

AdenocarcinomaAnastomosis, SurgicalAnimalsBarrett EsophagusBiopsy, NeedleCell Transformation, NeoplasticDisease Models, AnimalEsophagogastric JunctionEsophagoscopyFemaleImmunohistochemistryJejunostomyMaleNeoplasm InvasivenessPrecancerous ConditionsRandom Allocation

Identifiers

PMID19473210
PMCPMC3221518
OpenAlexW2069540392

What OpenQuestion holds

Textmetadata
LicenceTDM
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.