Evidence map›Paper›PMID 24205021›Full record

SynthesisPloS one2013

Can K-ras gene mutation be utilized as prognostic biomarker for colorectal cancer patients receiving chemotherapy? A meta-analysis and systematic review.

Yuan-Yi Rui, Dan Zhang, Zong-Guang Zhou, Cun Wang, Lie Yang, Yong-Yang Yu, Hai-Ning Chen

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 18 citations in OpenAlex.

  1. International journal of molecular sciences · 2023
    Article
  2. Article
  3. Article
  4. Review
  5. miR-211 regulates the expression ofOncology letters · 2018
    Article
  6. Review
  7. Article
  8. Adenomas - Genetic factors in colorectal cancer prevention.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
    Review
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 2 institutions in 1 country.

Yuan-Yi RuiDepartment of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China ; Institute of Digestive Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Dan Zhang
Zong-Guang Zhou
Cun Wang
Lie Yang
Yong-Yang Yu
Hai-Ning Chen
Sichuan University · CNWest China Hospital of Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionK-ras gene mutations were common in colorectal patients, but their relationship with prognosis was unclear.

objectiveVerify prognostic differences between patient with and without mutant K-ras genes by reviewing the published evidence.

methodSystematic reviews and data bases were searched for cohort/case-control studies of prognosis of colorectal cancer patients with detected K-ras mutations versus those without mutant K-ras genes, both of whom received chemotherapy. Number of patients, regimens of chemotherapy, and short-term or long-term survival rate (disease-free or overall) were extracted. Quality of studies was also evaluated. PRINCIPAL

findings7 studies of comparisons with a control group were identified. No association between K-ras gene status with neither short-term disease free-survival (OR=1.01, 95% CI, 0.73-1.38, P=0.97) nor overall survival (OR=1.06, 95% CI, 0.82-1.36, P=0.66) in CRC patients who received chemotherapy was indicated. Comparison of long-term survival between two groups also indicated no significant difference after heterogeneity was eliminated (OR=1.09, 95% CI, 0.85-1.40, P=0.49).

conclusionsK-ras gene mutations may not be a prognostic index for colorectal cancer patients who received chemotherapy.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorCase-Control StudiesColorectal NeoplasmsHumansMutationPrognosisProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsSurvival RateBiomarkers, TumorKRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras Proteins

Identifiers

PMID24205021
PMCPMC3804628
OpenAlexW1983272820

What OpenQuestion holds

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LicenceCC BY
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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.