Evidence map›Paper›PMID 30104641›Full record

ArticleScientific reports2018

Effect of storage conditions on salivary polyamines quantified via liquid chromatography-mass spectrometry.

Atsumi Tomita, Masayo Mori, Kana Hiwatari, Eri Yamaguchi, Takao Itoi, Makoto Sunamura, Tomoyoshi Soga, Masaru Tomita, Masahiro Sugimoto

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 15% 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Evaluation of Salivary Biomarkers of Periodontal Disease Based on Smoking Status: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
  3. Salivary metabolites to detect patients with cancer: a systematic review.International journal of clinical oncology · 2020
    Pooled it
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  9. Salivary metabolites as novel independent predictors of radiation pneumonitis.Journal of cancer research and clinical oncology · 2023
    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

9 authors at 3 institutions in 1 country.

Atsumi TomitaHealth Promotion and Preemptive Medicine, Research and Development Center for Minimally Invasive Therapies, Tokyo Medical University, Shinjuku, Tokyo, 160-8402, Japan.
Masayo MoriInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0052, Japan.
Kana HiwatariInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0052, Japan.
Eri YamaguchiHealth Promotion and Preemptive Medicine, Research and Development Center for Minimally Invasive Therapies, Tokyo Medical University, Shinjuku, Tokyo, 160-8402, Japan.
Takao ItoiDivision of Gastroenterology and Hepatology, Tokyo Medical University, Shinjuku, Tokyo, 160-0023, Japan.
Makoto SunamuraFourth Department of Surgery, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, 190-0998, Japan.
Tomoyoshi SogaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0052, Japan.
Masaru TomitaInstitute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0052, Japan.
Masahiro SugimotoHealth Promotion and Preemptive Medicine, Research and Development Center for Minimally Invasive Therapies, Tokyo Medical University, Shinjuku, Tokyo, 160-8402, Japan. mshrsgmt@gmail.com.
Keio University · JPTokyo Medical University · JPTokyo Medical University Hachioji Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Salivary polyamines are potential non-invasive tools for screening various types of cancers. For clinical use, the reproducibility of these metabolites should be evaluated under various storage conditions, including duration and temperature, to establish standard operating protocols. Polyamines and amino acids in unstimulated whole saliva were quantified via liquid chromatography-mass spectrometry. Concentrations of time course samples were analysed after short-term storage for up to 240 min and long-term storage for up to 8 days under various storage conditions. As expected, storage at the lowest temperature (-18 °C) exerted the least pronounced effects on the quantified values in both tests. At a higher temperature, polyamines were more stable than amino acids, as evident from polyamine profiling. Addition of ethanol significantly stabilized polyamine profiles even at a higher temperature. Comparative processing of saliva revealed a minor effect of the solvent, whereas drying had a more prominent effect on polyamine profiles. Computational analyses evaluated the ability of polyamines to discriminate pancreatic cancer from controls. Repeated noise added tests were designed on the basis of the results of the storage tests; these analyses confirmed that the discriminative abilities were robust. These data contribute to the standardization of salivary storage conditions, thereby highlighting the clinical utility of saliva.

Indexed as

Biomarkers, TumorCalibrationChromatography, High Pressure LiquidFemaleHumansMaleMetabolomicsPancreatic NeoplasmsPolyaminesReproducibility of ResultsSalivaSolventsSpecimen HandlingTandem Mass SpectrometryTemperatureTime FactorsBiomarkers, TumorPolyaminesSolvents

Identifiers

PMID30104641
PMCPMC6089938
OpenAlexW2886984850

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.