Evidence map›Paper›PMID 34889082›Full record

SynthesisNeuropsychopharmacology reports2022

Searching for biomarkers in schizophrenia and psychosis: Case-control study using capillary electrophoresis and liquid chromatography time-of-flight mass spectrometry and systematic review for biofluid metabolites.

Saehyeon Kim, Satoshi Okazaki, Ikuo Otsuka, Yutaka Shinko, Tadasu Horai, Naofumi Shimmyo, Takashi Hirata, Naruhisa Yamaki, Takaki Tanifuji, Shuken Boku and 2 more

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Neuropsychopharmacology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 30% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Observational
  5. Article
  6. 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

12 authors at 2 institutions in 1 country.

Saehyeon KimDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.ORCID 0000-0003-4028-3837
Satoshi OkazakiDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Ikuo OtsukaDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Yutaka ShinkoDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Tadasu HoraiDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Naofumi ShimmyoDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Takashi HirataDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Naruhisa YamakiDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Takaki TanifujiDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Shuken BokuDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Ichiro SoraDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.ORCID 0000-0003-0741-8373
Akitoyo HishimotoDepartment of Psychiatry, Kobe University Graduate School of Medicine, Kobe, Japan.
Kobe University · JPKumamoto Health Science University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metabolomics has been attracting attention in recent years as an objective method for diagnosing schizophrenia. In this study, we analyzed 378 metabolites in the serum of schizophrenia patients using capillary electrophoresis- and liquid chromatography-time-of-flight mass spectrometry. Using multivariate analysis with the orthogonal partial least squares method, we observed significantly higher levels of alanine, glutamate, lactic acid, ornithine, and serine and significantly lower levels of urea, in patients with chronic schizophrenia compared to healthy controls. Additionally, levels of fatty acids (15:0), (17:0), and (19:1), cis-11-eicosenoic acid, and thyroxine were significantly higher in patients with acute psychosis than in those in remission. Moreover, we conducted a systematic review of comprehensive metabolomics studies on schizophrenia over the last 20 years and observed consistent trends of increase in some metabolites such as glutamate and glucose, and decrease in citrate in schizophrenia patients across several studies. Hence, we provide substantial evidence for metabolic biomarkers in schizophrenia patients through our metabolomics study.

Indexed as

Psychotic DisordersSchizophreniaBiomarkersCase-Control StudiesChromatography, LiquidElectrophoresis, CapillaryHumansMass SpectrometryBiomarkersbiomarkersmetabolomicspsychosisschizophreniasystematic review

Identifiers

PMID34889082
PMCPMC8919119
OpenAlexW4200187850

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.