Evidence map›Paper›PMID 33770413›Full record

ArticleCellular oncology (Dordrecht, Netherlands)2021

Alterations in mucosa-associated microbiota in the stomach of patients with gastric cancer.

Yilin Deng, Xuewei Ding, Qingyuan Song, Gang Zhao, Lei Han, Bowen Ding, Xianhao Wang, Xishan Hao, Hui Li

Open access · hybridAbstract read
In one paragraph

Article in Cellular oncology (Dordrecht, Netherlands), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

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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

9 authors at 2 institutions in 2 countries.

Yilin DengDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China.
Xuewei DingNational Clinical Research Center for Cancer, Tianjin, 300060, China.
Qingyuan SongDepartment of Computer and Information Science, University of Pennsylvania, PA, 19104, Philadelphia, USA.
Gang ZhaoDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China.
Lei HanNational Clinical Research Center for Cancer, Tianjin, 300060, China.
Bowen DingDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China.
Xianhao WangDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China.
Xishan HaoDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China.
Hui LiDepartment of Gastrointestinal Cancer Biology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China. lihui@tjmuch.com.
Tianjin Medical University Cancer Institute and Hospital · CNUniversity of Pennsylvania · US

Funding

National Natural Science Foundation of China 81772620Tianjin Science and Technology Major Project of Chronic Diseases Prevention and Control 17ZXMFSY00130
6 · The paper itself

Abstract

purposeThe purpose of this study was to characterize alterations in mucosa-associated microbiota in different anatomical locations of the stomach during gastric cancer progression and to identify associations between Helicobacter pylori infection and gastric microbial changes in patients with gastric cancer.

methodsTwenty-five H. pylori negative subjects with chronic gastritis and thirty-four subjects with gastric cancer were recruited, including H. pylori negative and positive patients with tumors in the antrum and the corpus. Gastric mucosa-associated microbiota were determined by 16S ribosomal RNA gene sequencing using a 454 sequencing platform.

resultsWe found that individuals with chronic gastritis from three different anatomical sites exhibited different microbiota compositions, although the microbial alpha diversity, richness and beta diversity were similar. Compared to patients with chronic gastritis, the gastric microbiota compositions were significantly different at the order level in the antrum and the corpus of patients with gastric cancer, which was dependent on the H. pylori infection status. Microbial alpha diversity and species richness, however, were similar between chronic gastritis and gastric cancer cases and independent of H. pylori status. The microbial community structure in patients with gastric cancer was distinct from that in patients with chronic gastritis. In addition, we found that the presence of H. pylori markedly altered the structure in gastric corpus cancer, but only mildly affected the antrum.

conclusionOur data revealed distinct niche-specific microbiota alterations during the progression from gastritis to gastric cancer. These alterations may reflect adaptions of the microbiota to the diverse specific environmental habitats in the stomach, and may play an important, as yet undetermined, role in gastric carcinogenesis.

Indexed as

AgedCardiaDisease ProgressionFemaleGastric MucosaGastritisGastrointestinal MicrobiomeHelicobacter InfectionsHelicobacter pyloriHumansMaleMiddle AgedPyloric AntrumStomach NeoplasmsChronic gastritis gastric cancer microbiota Helicobacter pylori

Identifiers

PMID33770413
PMCPMC8213677
OpenAlexW3137779456

What OpenQuestion holds

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LicenceCC BY
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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.