Evidence map›Paper›PMID 28521434›Full record

ArticleOncology letters2017

Detection of SPG20 gene promoter-methylated DNA, as a novel epigenetic biomarker, in plasma for colorectal cancer diagnosis using the MethyLight method.

Nayebali Rezvani, Reza Alibakhshi, Assad Vaisi-Raygani, Homayoon Bashiri, Massoud Saidijam

Open access · diamondAbstract read
In one paragraph

Article in Oncology letters, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 22% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Detection of caudal type homeobox 1 (Journal of genetics · 2024
    Article
  7. Review
  8. Aberrant Methylation of theReports of biochemistry & molecular biology · 2023
    Article
  9. A Comparison ofDiagnostics (Basel, Switzerland) · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Methylation as a critical epigenetic process during tumor progressions among Iranian population: an overview.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2021
    Review
  15. Article
  16. FANCF hypomethylation is associated with colorectal cancer in Han Chinese.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2020
    Article
  17. Review
  18. Article
  19. The Impact ofMedicina (Kaunas, Lithuania) · 2019
    Article
  20. 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

5 authors at 2 institutions in 1 country.

Nayebali RezvaniResearch Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan 6517838736, Iran.
Reza AlibakhshiDepartment of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah 6714869914, Iran.
Assad Vaisi-RayganiDepartment of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah 6714869914, Iran.
Homayoon BashiriDepartment of Gastroenterology, Kermanshah University of Medical Sciences, Kermanshah 6714869914, Iran.
Massoud SaidijamResearch Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan 6517838736, Iran.
Kermanshah University of Medical Sciences · IRHamedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aberrant promoter methylation of genes is a common epigenetic alteration in colorectal cancer (CRC). In the present study, spastic paraplegia 20 (SPG20) promoter-methylated DNA, as a potential diagnostic biomarker, was investigated in plasma and tumor tissue samples from patients with CRC. To the best of our knowledge, the quantification of SPG20 promoter-methylated DNA in plasma samples remains unreported. SPG20 promoter methylation was investigated in 32 paired tumor and healthy adjacent tissues, 37 plasma samples from patients with CRC, and in 37 plasma samples from a healthy control group, using the MethyLight method. The percentage of methylated reference (PMR) values was determined for each sample, and the sensitivity and specificity of this unique biomarker were evaluated. PMR values were significantly higher in plasma samples from patients with CRC compared with in those from the control group (P<0.05). Plasma specimens from patients and healthy controls exhibited median PMR values of 7.7 (95% CI, 4.15-15.28) and 0.59 (95% CI, 0.14-1.12), respectively. Notably, the median PMR values were identified as 42.39 (95% CI, 27.69-72.26) and 3.61 (95% CI, 1.07-5.29) in tumor and adjacent healthy tissues, respectively. Using receiver-operating characteristics curve analysis, the area under curve (AUC) was demonstrated to be 0.984 for plasma samples, exhibiting a sensitivity of 81.1% and a specificity of 96.9%. Furthermore, the AUC was 0.996 for tissue samples, revealing a sensitivity of 93.8% and specificity of 99.96%. Results from the present study indicate that the identification of SPG20 promoter-methylated DNA in plasma is a potential diagnostic biomarker for the detection of CRC. Furthermore, the results demonstrate a satisfactory sensitivity and specificity, indicating the importance of SPG20 methylation as a novel noninvasive biomarker.

Indexed as

biomarkerscolorectal neoplasmsdiagnosticepigeneticmethylationMethyLight methodplasma DNAsensitivityspastic paraplegia 20specificity

Identifiers

PMID28521434
PMCPMC5431389
OpenAlexW2594831275

What OpenQuestion holds

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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.