Evidence map›Paper›PMID 17577619›Full record

ArticleGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2007

Helicobacter pylori infection, but not genetic polymorphism of CYP2E1, is highly prevalent in gastric cancer patients younger than 40 years.

Gotaro Masuda, Akira Tokunaga, Takashi Shirakawa, Akiyoshi Togashi, Teruo Kiyama, Shunji Kato, Norio Matsukura, Hideki Bou, Masanori Watanabe, Takashi Tajiri

Open access · bronzeAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 4 pooled it
2.0field-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

13 citing papers in PubMed, 4 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Association between IL-4 -590C>T polymorphism and gastric cancer risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2014
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Review
  6. Article
  7. Oncotarget · 2018
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Helicobacter pylori and gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2009
    Review
  13. 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 3 institutions in 1 country.

Gotaro MasudaSurgery for Organ and Biological Regulation, First Department of Surgery, Nippon Medical School, Tokyo, Japan.
Akira Tokunaga
Takashi Shirakawa
Akiyoshi Togashi
Teruo Kiyama
Shunji Kato
Norio Matsukura
Hideki Bou
Masanori Watanabe
Takashi Tajiri
Nippon Medical School · JPNippon Medical School Musashi Kosugi Hospital · JPChiba Hokusou Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGastric cancers in young adults are thought to be associated with risk factors that include Helicobacter pylori infection and genetic polymorphism. The objective of this study was to elucidate the roles of these risk factors in patients younger than 40 years by analyzing clinicopathological data and H. pylori infection, and using molecular epidemiologic techniques.

methodsClinicopathological features, the presence of H. pylori infection, endoscopic characteristics of gastritis, genetic polymorphism of P4502E1 (CYP2E1), and family history of cancer in patients with gastric cancer treated surgically at Nippon Medical School Hospital from 1991 to 2004 were analyzed, based on our medical database.

resultsGastric cancer in those younger than 40 years was characterized by a predominance of female patients with poorly differentiated adenocarcinoma who had undergone total gastrectomy with extended lymphadenectomy. H. pylori infection had a higher prevalence in patients with gastric cancer than in patients with normal endoscopic results or chronic gastritis, especially in those younger than 40 years (odds ratio, 13.7). Atrophic gastritis, nodular gastritis, and rugal hyperplastic gastritis were observed by endoscopy as H. pylori-associated gastritis. No difference in the incidence of either CYP2E1 genetic polymorphism or a family history of cancer was observed among different age groups.

conclusionGastric cancer in patients younger than 40 years is closely associated with H. pylori infection, but not with genetic characteristics. Eradication therapy for H. pylori and endoscopic examination of H. pylori-positive young adults may be anticipated to be adopted as a strategy for the prevention and/or early detection of cancer.

Indexed as

Gene Expression Regulation, NeoplasticPolymorphism, GeneticAdenocarcinomaAdultAgedAged, 80 and overCytochrome P-450 CYP2E1DNA, NeoplasmEnzyme-Linked Immunosorbent AssayFemaleGastrectomyGastritisGenotypeHelicobacter InfectionsHelicobacter pyloriHumansCytochrome P-450 CYP2E1DNA, Neoplasm

Identifiers

PMID17577619
OpenAlexW2061088656

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.