Evidence map›Paper›PMID 29863156›Full record

ArticleAnnals of gastroenterological surgery2018

Detection of gas components as a novel diagnostic method for colorectal cancer.

Atsushi Ishibe, Mitsuyoshi Ota, Akemi Takeshita, Hiroshi Tsuboi, Satoko Kizuka, Hidenori Oka, Yusuke Suwa, Shinsuke Suzuki, Kazuya Nakagawa, Hirokazu Suwa and 5 more

Open access · goldAbstract read
In one paragraph

Article in Annals of gastroenterological surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 4 pooled it
1.7field-weighted citation impact, top 18% 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

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

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Use of Human Serum Albumin CysAntioxidants (Basel, Switzerland) · 2026
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  8. Article
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  12. Novel Diagnostic Biomarkers in Colorectal Cancer.International journal of molecular sciences · 2022
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  14. Review
  15. Review
  16. Induced volatolomics of pathologies.Nature reviews. Chemistry · 2021
    Review
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  18. Review
  19. Article
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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

15 authors at 2 institutions in 1 country.

Atsushi IshibeDepartment of Gastroenterological Surgery Yokohama City University Graduate School Medicine Yokohama Japan.ORCID 0000-0002-3251-3658
Mitsuyoshi OtaDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Akemi TakeshitaTOTO LTD Yokohama Japan.
Hiroshi TsuboiTOTO LTD Yokohama Japan.
Satoko KizukaTOTO LTD Yokohama Japan.
Hidenori OkaTOTO LTD Yokohama Japan.
Yusuke SuwaDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Shinsuke SuzukiDepartment of Gastroenterological Surgery Yokohama City University Graduate School Medicine Yokohama Japan.
Kazuya NakagawaDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Hirokazu SuwaDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Masashi MomiyamaDepartment of Gastroenterological Surgery Yokohama City University Graduate School Medicine Yokohama Japan.
Jun WatanabeDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Masataka TaguriDepartment of Biostatistics Yokohama City University Graduate School Medicine Yokohama Japan.
Chikara KunisakiDepartment of Surgery Gastroenterological Center Graduate School of Medicine Yokohama City University Yokohama Japan.
Itaru EndoDepartment of Gastroenterological Surgery Yokohama City University Graduate School Medicine Yokohama Japan.ORCID 0000-0001-5520-8114
Yokohama City University · JPToto (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe fecal occult blood test (FOBT) is widely accepted as the most economic and non-invasive screening method for colorectal cancer (CRC). However, the FOBT is inconvenient because it requires a fecal sample and shows limited accuracy. Alternatively, we hypothesized that fecal gas compounds from bowel movements may be a non-invasive biomarker for CRC.

methodsGas compounds were collected from the bowel movements of 30 patients with CRC and from 26 healthy controls. The patient group comprised 17 males and 13 females, and the average age was 68 years. Additionally, 22 patients had colon cancer, and eight patients had rectal cancer. Gas compounds were analyzed using gas chromatography and compared with those from healthy controls.

resultsIn the gas analysis, methyl mercaptan was significantly higher in the CRC group than in the control group. Hydrogen was significantly lower in the CRC group than in the control group and was correlated with tumor depth and advanced disease stage. Sensitivity, specificity, and accuracy of detection by a discriminant formula were 90%, 57.7%, and 75%, respectively.

conclusionGas compounds from defecation constitute a promising, novel non-invasive approach for CRC screening. (UMIN000028256).

Indexed as

accuracycolorectal cancerdiagnosisgas

Identifiers

PMID29863156
PMCPMC5881347
OpenAlexW2783776834

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.