Evidence map›Paper›PMID 7828987›Full record

ArticleGut1994

Mutations of Ki-ras and p53 genes in colorectal cancer and their prognostic significance.

M Morrin, M Kelly, N Barrett, P Delaney

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-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

17 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Prognostic role ofOncology letters · 2016
    Article
  3. Implication of K-ras and p53 in colorectal cancer carcinogenesis in Tunisian population cohort.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Article
  4. Tissue-based biomarkers predicting outcomes in metastatic colorectal cancer: a review.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2014
    Review
  5. Article
  6. Prognostic and predictive roles of KRAS mutation in colorectal cancer.International journal of molecular sciences · 2012
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Genetic prognostic markers in colorectal cancer.Molecular pathology : MP · 1997
    Review
  16. Article
  17. Molecular gate keepers succumb to gene aberrations in colorectal cancer in Kashmiri population, revealing a high incidence area.Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association
    Article
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

4 authors at 1 institution in 1 country.

M MorrinColorectal Research Unit, Regional General Hospital, Limerick, Ireland.
M Kelly
N Barrett
P Delaney
Nenagh Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The series of genetic changes leading to malignancy in colorectal cancer is well reported. This includes mutational activation of the proto-oncogene Ki-ras and mutation/deletion of the p53 tumour suppressor gene. The frequency of these mutations was investigated in a panel of 52 colorectal cancer patients using a combination of immunocytochemistry and non-radioactive, digoxigenin-labelled in situ hybridisation. Sixty two per cent (32 of 52) of the study population were positive for p53 overexpression and 36% (19 of 52) positive for Ki-ras mutation. Twenty seven per cent (14 of 52) of the patients expressed both mutations. Mutation of either the p53 or the Ki-ras gene did not correlate with Dukes's stage, tumour differentiation or 5 year survival rate of the patients. Most of the rectal carcinoma specimens (11 of 15) showed p53 over-expression but the significance of this was not supported statistically. Thus detection of molecular changes is becoming more amenable to incorporation into routine histological carcinoma assessment because of the advent of non-radioactive labelling in in situ hybridisation and antibodies suitable for paraffin wax embedded specimens. The significance of these mutations in disease prognosis, however, remains questionable.

Indexed as

MutationColonic NeoplasmsGene Expression Regulation, NeoplasticGenes, p53Genes, rasHumansImmunoenzyme TechniquesIn Situ HybridizationPrognosisProto-Oncogene Masras ProteinsRectal NeoplasmsTumor Suppressor Protein p53MAS1 protein, humanProto-Oncogene Masras ProteinsTumor Suppressor Protein p53

Identifiers

PMID7828987
PMCPMC1375626
OpenAlexW2116055440

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.