Evidence map›Paper›PMID 19644562›Full record

ArticleJournal of biomedicine & biotechnology2009

Clinical significance of epigenetic inactivation of hMLH1 and BRCA1 in Tunisian patients with invasive breast carcinoma.

Sondes Karray-Chouayekh, Fatma Trifa, Abdelmajid Khabir, Nouredine Boujelbane, Tahia Sellami-Boudawara, Jamel Daoud, Mounir Frikha, Ali Gargouri, Raja Mokdad-Gargouri

Open access · hybridAbstract read
In one paragraph

Article in Journal of biomedicine & biotechnology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. CpG methylation of APC promoter 1A in sporadic and familial breast cancer patients.Cancer biomarkers : section A of Disease markers · 2017
    Article
  4. Article
  5. Promoter methylation ofMolecular and clinical oncology · 2015
    Article
  6. MYC overexpression and poor prognosis in sporadic breast cancer with BRCA1 deficiency.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013
    Article
  7. Loss of WIF-1 and Wnt5a expression is related to aggressiveness of sporadic breast cancer in Tunisian patients.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2013
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. 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

9 authors at 2 institutions in 1 country.

Sondes Karray-ChouayekhUnitéde Génétique du cancer et Production de protéines thérapeutiques, Centre de Biotechnologie de Sfax, route Sidi Mansour, BP 1177, 3018 Sfax, Tunisia.
Fatma Trifa
Abdelmajid Khabir
Nouredine Boujelbane
Tahia Sellami-Boudawara
Jamel Daoud
Mounir Frikha
Ali Gargouri
Raja Mokdad-Gargouri
Hopital Universitaire Habib Bourguiba · TNCentre of Biotechnology of Sfax · TN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aberrant hypermethylation of gene promoter regions is one of the mechanisms for inactivation of tumour suppressor genes in many human cancers including breast carcinoma. In the current study, we aimed to assess by MSP, the methylation pattern of two cancer-related genes involved in DNA repair: hMLH1 (mutL homolog 1, colon cancer, nonpolyposis type 2 (E. coli) and BRCA1 (breast cancer 1, early onset) in 78 primary breast cancers from Tunisian patients. The methylation frequencies were 24.36% for hMLH1 and 46% for BRCA1. BRCA1 methylation correlated with age at diagnosis (P = .015) and 5-years disease free survival (P = .016) while hMLH1 methylation was more frequent in larger tumors (P = .002) and in presence of distant metastasis (P = .004). Furthermore, methylation of hMLH1 significantly correlated with high level of P53 expression (P = .006) and with overall survival (P = .015) suggesting that silencing of hMLH1 through aberrant promoter methylation could be used as a poor prognosis indicator in breast cancer.

Indexed as

Gene SilencingAdaptor Proteins, Signal TransducingAdultAgedBlack PeopleBRCA1 ProteinBreast NeoplasmsDNA MethylationDNA, NeoplasmFemaleGenes, NeoplasmHumansImmunohistochemistryKaplan-Meier EstimateMiddle AgedMultivariate AnalysisAdaptor Proteins, Signal TransducingBRCA1 ProteinBRCA1 protein, humanDNA, NeoplasmMLH1 protein, humanMutL Protein Homolog 1Nuclear ProteinsTumor Suppressor Protein p53

Identifiers

PMID19644562
PMCPMC2717605
OpenAlexW2064525056

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.