Evidence map›Paper›PMID 20424616›Full record

ArticleBritish journal of cancer2010

Quantitative expression analysis and prognostic significance of L-DOPA decarboxylase in colorectal adenocarcinoma.

C K Kontos, I N Papadopoulos, E G Fragoulis, A Scorilas

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Article in British journal of cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
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  7. High Intratumoral i-tRF-GlyBiomedicines · 2023
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  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Revised Exon Structure of l-DOPA Decarboxylase (International journal of molecular sciences · 2020
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

C K KontosDepartment of Biochemistry and Molecular Biology, Faculty of Biology, University of Athens, Athens GR-15701, Greece.
I N Papadopoulos
E G Fragoulis
A Scorilas
National and Kapodistrian University of Athens · GRUniversity General Hospital Attikon · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundL-DOPA decarboxylase (DDC) is an enzyme that catalyses, mainly, the decarboxylation of L-DOPA to dopamine and was found to be involved in many malignancies. The aim of this study was to investigate the mRNA expression levels of the DDC gene and to evaluate its clinical utility in tissues with colorectal adenocarcinoma.

methodsTotal RNA was isolated from colorectal adenocarcinoma tissues of 95 patients. After having tested RNA quality, we prepared cDNA by reverse transcription. Highly sensitive quantitative real-time PCR method for DDC mRNA quantification was developed using the SYBR Green chemistry. GAPDH served as a housekeeping gene. Relative quantification analysis was performed using the comparative C(T) method (2(-DeltaDeltaC(T))).

resultsDDC mRNA expression varied remarkably among colorectal tumours examined in this study. High DDC mRNA expression levels were found in well-differentiated and Dukes' stage A and B tumours. Kaplan-Meier survival curves showed that patients with DDC-positive tumours have significantly longer disease-free survival (P=0.009) and overall survival (P=0.027). In Cox regression analysis of the entire cohort of patients, negative DDC proved to be a significant predictor of reduced disease-free (P=0.021) and overall survival (P=0.047).

conclusionsThe results of the study suggest that DDC mRNA expression may be regarded as a novel potential tissue biomarker in colorectal adenocarcinoma.

Indexed as

Gene Expression Regulation, NeoplasticAdenocarcinomaAdultAgedAged, 80 and overColorectal NeoplasmsDisease-Free SurvivalDopa DecarboxylaseHumansLymph NodesMiddle AgedNeoplasm StagingPolymerase Chain ReactionPrognosisReverse Transcriptase Polymerase Chain ReactionRNA, MessengerDopa DecarboxylaseRNA, MessengerRNA, Neoplasm

Identifiers

PMID20424616
PMCPMC2865762
OpenAlexW2042159815

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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.