Evidence map›Paper›PMID 28558668›Full record

ArticleBMC cancer2017

Combination of Helicobacter pylori infection and the interleukin 8 -251 T > A polymorphism, but not the mannose-binding lectin 2 codon 54 G > A polymorphism, might be a risk factor of gastric cancer.

Young Woon Chang, Chi Hyuk Oh, Jung-Wook Kim, Jae Won Lee, Mi Ju Park, Jae-Jun Shim, Chang Kyun Lee, Jae-Young Jang, Seok Ho Dong, Hyo Jong Kim and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

7 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
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  5. World journal of gastroenterology · 2019
    Review
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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

12 authors at 2 institutions in 1 country.

Young Woon ChangDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Chi Hyuk OhDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Jung-Wook KimDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea. iloveact@hanmail.net.ORCID 0000-0002-5383-7934
Jae Won LeeDepartment of Statistics, Korea University, Seoul, South Korea.
Mi Ju ParkDepartment of Statistics, Korea University, Seoul, South Korea.
Jae-Jun ShimDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Chang Kyun LeeDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Jae-Young JangDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Seok Ho DongDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Hyo Jong KimDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Sung Soo KimDepartment of Biochemistry and Molecular Biology, Kyung Hee University School of Medicine, Seoul, South Korea.
Byung-Ho KimDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, Kyung Hee University School of Medicine, 23, Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, Seoul, 02447, South Korea.
Kyung Hee University · KRStatistics Korea · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMannose-binding lectin (MBL) acts in the innate immune response to Helicobacter pylori. Interleukin 8 (IL-8) is a potent cytokine produced by gastric epithelial cells in response to H. pylori. We aimed to investigate whether polymorphisms in MBL2 and IL-8 influence susceptibility to H. pylori infection, and the associations of these polymorphisms with the risk of gastroduodenal diseases in a Korean population.

methodsWe consecutively enrolled 176 H. pylori-negative control subjects, 221 subjects with H. pylori-positive non-atrophic gastritis, 52 mild atrophic gastritis (AG), 61 severe AG, 175 duodenal ulcer, and 283 gastric cancer (GC). Allele-specific PCR-RFLP was conducted for polymorphisms in MBL2 exon 1 (codon 52, 54, and 57) and IL-8 -251 T > A. IL-8 levels in gastric mucosal tissues and serum MBL levels were measured by enzyme-linked immunosorbent assay.

resultsMBL2 exon 1 polymorphic variants were found only in codon 54, and the allele frequencies did not differ significantly between the control and disease groups. Although serum MBL levels in codon 54 A/A mutants were markedly low, it did not influence susceptibility to H. pylori infection or the risk of gastroduodenal diseases. IL-8 levels were significantly different between T/T wild type, T/A heterozygote, and A/A mutant genotypes. IL-8 -251 A allele carriers (A/A + T/A) showed increased IL-8 levels, and were significantly associated with the risk of severe AG and GC.

conclusionsWe suggest that a combination of H. pylori infection and the IL-8 -251 T > A polymorphism might increase the risk of severe AG and GC in a Korean population.

Indexed as

AdultAgedFemaleGene FrequencyGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeHelicobacter InfectionsHelicobacter pyloriHumansInterleukin-8MaleMannose-Binding LectinMiddle AgedPolymorphism, Single NucleotideRepublic of KoreaCXCL8 protein, humanInterleukin-8Mannose-Binding LectinMBL2 protein, humanGastric cancerHelicobacter pyloriInterleukin 8Mannose-binding lectin 2

Identifiers

PMID28558668
PMCPMC5450387
OpenAlexW2620453803

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.