Evidence map›Paper›PMID 31664624›Full record

ArticleMetabolomics : Official journal of the Metabolomic Society2019

Metabolomic biomarkers in cervicovaginal fluid for detecting endometrial cancer through nuclear magnetic resonance spectroscopy.

Shih-Chun Cheng, Kueian Chen, Chih-Yung Chiu, Kuan-Ying Lu, Hsin-Ying Lu, Meng-Han Chiang, Cheng-Kun Tsai, Chi-Jen Lo, Mei-Ling Cheng, Ting-Chang Chang and 1 more

Abstract read
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In one paragraph

Article in Metabolomics : Official journal of the Metabolomic Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Exploring metabolic signatures in urine using NMR for improved prognosis of gliomas.Metabolomics : Official journal of the Metabolomic Society · 2026
    Article
  3. Article
  4. Review
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  6. Article
  7. Cervicovaginal Metabolome and Tumor Characteristics for Endometrial Cancer Detection and Risk Stratification.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Grading of endometrial cancer usingScientific reports · 2021
    Article
  20. Review
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

11 authors at 2 institutions in 1 country.

Shih-Chun ChengDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan.
Kueian ChenDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan.
Chih-Yung ChiuDepartment of Pediatrics, Chang Gung Memorial Hospital at Keelung and Linkou, Chang Gung University, Taoyuan, 33305, Taiwan.
Kuan-Ying LuDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan.
Hsin-Ying LuDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan.
Meng-Han ChiangImaging Core Laboratory, Institute for Radiological Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan, 33305, Taiwan.
Cheng-Kun TsaiImaging Core Laboratory, Institute for Radiological Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan, 33305, Taiwan.
Chi-Jen LoMetabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan, 33382, Taiwan.
Mei-Ling ChengClinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan, 33305, Taiwan.
Ting-Chang ChangDepartment of Obstetrics and Gynecology, Chang Gung Memorial Hospital at Linkou and Chang University Medical College, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan. tinchang@cgmh.org.tw.
Gigin LinDepartment of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, 5 Fuhsing St., Guishan, Taoyuan, 33305, Taiwan. giginlin@cgmh.org.tw.ORCID 0000-0001-7246-1058
Chang Gung University · TWChang Gung Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEndometrial cancer (EC) is one of the most common gynecologic neoplasms in developed countries but lacks screening biomarkers.

objectivesWe aim to identify and validate metabolomic biomarkers in cervicovaginal fluid (CVF) for detecting EC through nuclear magnetic resonance (NMR) spectroscopy.

methodsWe screened 100 women with suspicion of EC and benign gynecological conditions, and randomized them into the training and independent testing datasets using a 5:1 study design. CVF samples were analyzed using a 600-MHz NMR spectrometer equipped with a cryoprobe. Four machine learning algorithms-support vector machine (SVM), partial least squares discriminant analysis (PLS-DA), random forest (RF), and logistic regression (LR), were applied to develop the model for identifying metabolomic biomarkers in cervicovaginal fluid for EC detection.

resultsA total of 54 women were eligible for the final analysis, with 21 EC and 33 non-EC. From 29 identified metabolites in cervicovaginal fluid samples, the top-ranking metabolites chosen through SVM, RF and PLS-DA which existed in independent metabolic pathways, i.e. phosphocholine, malate, and asparagine, were selected to build the prediction model. The SVM, PLS-DA, RF, and LR methods all yielded area under the curve values between 0.88 and 0.92 in the training dataset. In the testing dataset, the SVM and RF methods yielded the highest accuracy of 0.78 and the specificity of 0.75 and 0.80, respectively.

conclusionPhosphocholine, asparagine, and malate from cervicovaginal fluid, which were identified and independently validated through models built using machine learning algorithms, are promising metabolomic biomarkers for the detection of EC using NMR spectroscopy.

Indexed as

MetabolomicsAdultAgedAlgorithmsBiomarkers, TumorBody FluidsEndometrial NeoplasmsFemaleHumansLeast-Squares AnalysisMachine LearningMiddle AgedProton Magnetic Resonance SpectroscopySupport Vector MachineBiomarkers, TumorBiomarkersEndometrial neoplasmsMagnetic resonance spectroscopyMetabolomics

Identifiers

PMID31664624
OpenAlexW2982466528

What OpenQuestion holds

Textmetadata
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.