Evidence map›Paper›PMID 20082476›Full record

ArticleWorld journal of gastroenterology2010

Helicobacter pylori and EBV in gastric carcinomas: methylation status and microsatellite instability.

Adriana Camargo Ferrasi, Nídia Alice Pinheiro, Silvia Helena Barem Rabenhorst, Otávia Luisa Caballero, Maria Aparecida Marchesan Rodrigues, Fabrício de Carvalho, Celso Vieira de Souza Leite, Marcia Valéria Pitombeira Ferreira, Marcos Aurélio Pessoa Barros, Maria Inês Moura Campos Pardini

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 4 pooled it
2.2field-weighted citation impact, top 13% 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

34 citing papers in PubMed, 4 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Genes · 2025
    Article
  6. Review
  7. Article
  8. International journal of molecular sciences · 2023
    Article
  9. The immune microenvironment in gastric adenocarcinoma.Nature reviews. Gastroenterology & hepatology · 2022
    Review
  10. Article
  11. Review
  12. Article
  13. How doesWorld journal of gastroenterology · 2019
    Review
  14. Role of microRNAs and Exosomes inFrontiers in microbiology · 2018
    Review
  15. Journal of Cancer · 2018
    Article
  16. Article
  17. Expression and function of Uc.160+, a transcribed ultraconserved region, in gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2017
    Article
  18. Review
  19. Review
  20. 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

10 authors at 1 institution in 1 country.

Adriana Camargo FerrasiBlood Transfusion Center, Botucatu Medical School, UNESP - Sao Paulo State University, Distrito de Rubião Júnior, s/n, 18618-970 Botucatu-SP, Brazil.
Nídia Alice Pinheiro
Silvia Helena Barem Rabenhorst
Otávia Luisa Caballero
Maria Aparecida Marchesan Rodrigues
Fabrício de Carvalho
Celso Vieira de Souza Leite
Marcia Valéria Pitombeira Ferreira
Marcos Aurélio Pessoa Barros
Maria Inês Moura Campos Pardini
Universidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo verify the methylation status of CDH1, DAPK, COX2, hMLH1 and CDKN2A genes and to evaluate their association with Helicobacter pylori (H. pylori)-cagA(+) and Epstein Barr virus (EBV) infections in gastric adenocarcinomas.

methodsMethylation-specific PCR (MSP) assay was performed in 89 primary gastric carcinomas (intestinal and diffuse types). Microsatellite instability (MSI) analysis was performed using the BAT26 primer set and PCR products were analyzed with the ABI PRISM 3100 Genetic Analyzer using Genescan 3.7 software (Applied Biosystems). Detection of H. pylori and genotyping were performed by PCR, using specific primers for ureaseC and cagA genes. The presence of EBV was assessed by in situ hybridization. Statistical analyses were performed using the chi(2) or Fisher's exact test.

resultsThe most frequent hypermethylated gene was COX-2 (63.5%) followed by DAPK (55.7%), CDH1 (51%), CDKN2A (36%) and hMLH1 (30.3%). Intestinal and diffuse adenocarcinomas showed different methylation profiles and there was an association between methylation of E-CDH1 and H. pylori-cagA(+) in the intestinal adenocarcinoma type. MSI was correlated with hMLH1 methylation. There was an inverse correlation between DAPK hypermethylation and MSI.

conclusionWe found a strong association between CDH1 methylation and H. pylori-cagA(+) in intestinal-type gastric cancer, association of MSI and better prognosis and an heterogeneous COX-2 overexpression.

Indexed as

DNA MethylationMicrosatellite InstabilityAdaptor Proteins, Signal TransducingAdenocarcinomaAntigens, CDApoptosis Regulatory ProteinsCadherinsCalcium-Calmodulin-Dependent Protein KinasesCyclin-Dependent Kinase Inhibitor p16Cyclooxygenase 2Death-Associated Protein KinasesDNA, NeoplasmEpstein-Barr Virus InfectionsFemaleHelicobacter InfectionsHelicobacter pyloriAdaptor Proteins, Signal TransducingAntigens, CDApoptosis Regulatory ProteinsCadherinsCalcium-Calmodulin-Dependent Protein KinasesCDH1 protein, humanCyclin-Dependent Kinase Inhibitor p16Cyclooxygenase 2Death-Associated Protein KinasesDNA, NeoplasmMLH1 protein, humanMutL Protein Homolog 1Nuclear Proteins

Identifiers

PMID20082476
PMCPMC2807951
OpenAlexW1976153895

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.