Evidence map›Paper›PMID 21418130›Full record

ArticleHPB : the official journal of the International Hepato Pancreato Biliary Association2011

Changes in growth factor levels after thermal ablation in a murine model of colorectal liver metastases.

Theodora Fifis, Caterina Malcontenti-Wilson, Jason Amijoyo, Beatrice Anggono, Vijayaragavan Muralidharan, Mehrdad Nikfarjam, Christopher Christophi

Open access · bronzeAbstract read
In one paragraph

Article in HPB : the official journal of the International Hepato Pancreato Biliary Association, 2011. 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
0.5field-weighted citation impact, top 35% 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, 8 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 1 institution in 1 country.

Theodora FifisDepartment of Surgery, University of Melbourne, Austin Hospital, Heidelberg, Vic, Australia. tfifis@unimelb.edu.au
Caterina Malcontenti-Wilson
Jason Amijoyo
Beatrice Anggono
Vijayaragavan Muralidharan
Mehrdad Nikfarjam
Christopher Christophi
The University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study examines changes in the expression of growth factors following thermal ablation (TA) of selected colorectal cancer (CRC) liver metastases.

methodsUsing mice with established CRC liver metastases, two tumours in each animal were thermally ablated. Liver and tumour tissues were collected at various time-points (days 0, 1, 2, 3, 5 and 7) following TA treatment from the ablation site and from sites distant from ablated tumour. Changes in growth factor expression (epidermal growth factor [EGF], vascular endothelial growth factor [VEGF], hepatocyte growth factor [HGF] and transforming growth factor-β[TGF-β]) in comparison with baseline levels (non-ablated) were assessed by enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry.

resultsBaseline TGF-β and VEGF levels in the liver parenchyma of tumour-bearing mice were significantly higher than levels in naive liver parenchyma. Levels of VEGF and HGF decreased after TA treatment in all tissues. Levels of EGF decreased in ablated and distant tumour tissues, but displayed a tendency to increase in liver tissue. Levels of TGF-β also decreased during the first 2 days following TA, but later increased in liver and tumour tissues distant from the ablation site to a level that reached significance in tumour tissue at day 7 (P < 0.001). Decreases in growth factor levels were also observed in animals that underwent laparotomy without TA treatment, which indicates that these decreases were caused by the experimental procedure.

conclusionsTumour induces upregulation of TGF-β and VEGF in liver parenchyma. Growth factors decreased after TA, but this appears to be the result of the experimental procedure rather than the TA itself. However, TA resulted in increased levels of TGF-β, which may contribute to tumour recurrence.

Indexed as

Laser TherapyAnimalsCell Line, TumorColorectal NeoplasmsEnzyme-Linked Immunosorbent AssayEpidermal Growth FactorHepatocyte Growth FactorImmunohistochemistryIntercellular Signaling Peptides and ProteinsLiver NeoplasmsMaleMiceMice, Inbred CBATime FactorsTransforming Growth Factor betaVascular Endothelial Growth Factor AEpidermal Growth FactorHepatocyte Growth FactorHGF protein, mouseIntercellular Signaling Peptides and ProteinsTransforming Growth Factor betaVascular Endothelial Growth Factor Avascular endothelial growth factor A, mouse

Identifiers

PMID21418130
PMCPMC3081625
OpenAlexW2008451014

What OpenQuestion holds

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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.