Evidence map›Paper›PMID 25561807›Full record

ArticleWorld journal of gastroenterology2014

Increased expression of tumor necrosis factor-α is associated with advanced colorectal cancer stages.

Omar A Al Obeed, Khayal A Alkhayal, Abdulmalik Al Sheikh, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Robin Boushey, James H Mckerrow, Maha-Hamadien Abdulla

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2014. 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
2.1field-weighted citation impact, top 12% 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, 154 citations in OpenAlex.

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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

8 authors at 1 institution in 3 countries.

Omar A Al ObeedOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Khayal A AlkhayalOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Abdulmalik Al SheikhOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Ahmad M ZubaidiOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Mansoor-Ali Vaali-MohammedOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Robin BousheyOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
James H MckerrowOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Maha-Hamadien AbdullaOmar A Al Obeed, Khayal A Alkhayal, Ahmad M Zubaidi, Mansoor-Ali Vaali-Mohammed, Maha-Hamadien Abdulla, Colorectal Research Center, Department of Surgery, King Saud University, Riyadh 11472, Saudi Arabia.
Colorectal Surgical Associates · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo detect the expression of tumor necrosis factor-α (TNF-α) in colorectal cancer (CRC) cells among Saudi patients, and correlate its expression with clinical stages of cancer.

methodsArchival tissue specimens were collected from 30 patients with CRC who had undergone surgical intervention at King Khalid University Hospital. Patient demographic information, including age and gender, tumor sites, and histological type of CRC, was recorded. To measure TNF-α mRNA expression in CRC, total RNA was extracted from tumor formalin-fixed, paraffin-embedded, and adjacent normal tissues. Reverse transcription and reverse transcription polymerase chain reaction were performed. Colorectal tissue microarrays were constructed to investigate the protein expression of TNF-α by immunohistochemistry.

resultsThe relative expression of TNF-α mRNA in colorectal cancer was significantly higher than that seen in adjacent normal colorectal tissue. High TNF-α gene expression was associated with Stage III and IV neoplasms when compared with earlier tumor stages (P = 0.004). Eighty-three percent of patients (25/30) showed strong TNF-α positive staining, while only 10% (n = 3/30) of patients showed weak staining, and 7% (n = 2/30) were negative. We showed the presence of elevated TNF-α gene expression in cancer cells, which strongly correlated with advanced stages of tumor.

conclusionHigh levels of TNF-α expression could be an independent diagnostic indicator of colorectal cancer, and targeting TNF-α might be a promising prognostic tool by assessment of the clinical stages of CRC.

Indexed as

Biomarkers, TumorColorectal NeoplasmsFemaleHospitals, UniversityHumansImmunohistochemistryMaleMiddle AgedNeoplasm StagingPredictive Value of TestsReal-Time Polymerase Chain ReactionRetrospective StudiesReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSaudi ArabiaTissue Array AnalysisBiomarkers, TumorRNA, MessengerTumor Necrosis Factor-alphaColorectal cancerImmunohistochemistrymRNAReal time polymerase chain reactionTumor necrosis factor-α

Identifiers

PMID25561807
PMCPMC4277977
OpenAlexW2327125795

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.