Evidence map›Paper›PMID 33996615›Full record

ArticleFrontiers in cellular and infection microbiology2021

A Comparison Study of Age and Colorectal Cancer-Related Gut Bacteria.

Yu-Kun Zhang, Qian Zhang, Yu-Liuming Wang, Wei-Yuan Zhang, Han-Qing Hu, Hong-Yu Wu, Xiang-Zong Sheng, Kang-Jia Luo, Hao Zhang, Meng Wang and 2 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 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

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

  1. Pooled it
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  3. Review
  4. Effect of Garambullo (International journal of molecular sciences · 2026
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  10. The rise and evolving role ofCurrent research in microbial sciences · 2025
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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 3 institutions in 1 country.

Yu-Kun ZhangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Qian ZhangDepartment of Colorectal Cancer, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.
Yu-Liuming WangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Wei-Yuan ZhangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Han-Qing HuDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Hong-Yu WuDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Xiang-Zong ShengDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Kang-Jia LuoDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Hao ZhangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Meng WangDepartment of Colorectal Cancer, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.
Rui HuangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Gui-Yu WangDepartment of Colorectal Cancer, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China.
Harbin Medical University · CNUniversity of Chinese Academy of Sciences · CNZhejiang Cancer Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intestinal microbiota is gaining increasing interest from researchers, and a series of studies proved that gut bacteria plays a significant role in various malignancies, especially in colorectal cancer (CRC). In this study, a cohort of 34 CRC patients (average age=65 years old), 26 young volunteers (below 30 years old), and 26 old volunteers (over 60 years old) was enrolled. 16S ribosomal RNA gene sequencing was used to explore fecal bacteria diversity. The operational taxonomic unit (OTU) clustering analysis and NMDS (non-metric multidimensional scaling) analysis were used to separate different groups. Cluster of ortholog genes (COG) functional annotation and Kyoto encyclopedia of genes and genomes (KEGG) were used to detect enriched pathways among three groups. Community separations were observed among the three groups of this cohort.

Indexed as

Colorectal NeoplasmsGastrointestinal MicrobiomeAdultAgedBacteriaFecesHumansMiddle AgedRNA, Ribosomal, 16SRNA, Ribosomal, 16S16S rRNAcancer biomarkercolorectal cancergut microbiotaIllumina Miseq sequencing

Identifiers

PMID33996615
PMCPMC8121496
OpenAlexW3159685258

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.