Evidence map›Paper›PMID 33599392›Full record

ArticleBrain and behavior2021

Nervonic acid level in cerebrospinal fluid is a candidate biomarker for depressive and manic symptoms: A pilot study.

Yuki Kageyama, Yasuhiko Deguchi, Kotaro Hattori, Sumiko Yoshida, Yu-Ichi Goto, Koki Inoue, Tadafumi Kato

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Biomarkers of bipolar disorder in omics and neuroimaging.Journal of pharmaceutical analysis · 2025
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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

7 authors at 4 institutions in 2 countries.

Yuki KageyamaDepartment of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, Brain and Mind Research Institute, New York, NY, USA.ORCID 0000-0002-9496-9204
Yasuhiko DeguchiDepartment of Neuropsychiatry, Graduate School of Medicine, Osaka City University, Osaka, Japan.
Kotaro HattoriMedical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan.
Sumiko YoshidaMedical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan.
Yu-Ichi GotoDepartment of Psychiatry, National Center of Neurology and Psychiatry Hospital, Tokyo, Japan.
Koki InoueDepartment of Neuropsychiatry, Graduate School of Medicine, Osaka City University, Osaka, Japan.
Tadafumi KatoLaboratory for Molecular Dynamics of Mental Disorders, RIKEN Center for Brain Science, Saitama, Japan.
National Center of Neurology and Psychiatry · JPOsaka City University · JPCornell University · USRIKEN Center for Brain Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOur previous metabolomics study showed that the plasma nervonic acid levels were higher in patients with major depressive disorder (MDD) than those in healthy controls and patients with bipolar disorder (BD). To examine whether the nervonic acid levels differ in the central nervous system, we investigated the levels in the cerebrospinal fluid (CSF) of patients with MDD, BD, and healthy controls.

methodsNervonic acid levels in CSF were measured by gas chromatography time-of-flight mass spectrometry. The participants included 30 patients with MDD, 30 patients with BD, and 30 healthy controls.

resultsIn contrast to our previous study, no significant differences were found in the nervonic acid level in the CSF among the patients with MDD, BD, and the healthy controls. Though no significant state-dependent changes were found among the three groups, we did observe a significant negative correlation between the nervonic acid levels and depressive symptoms in the depressive state of patients with MDD and BD (r = -0.38, p = .046). Further, a significant positive correlation was found between the nervonic acid levels and manic symptoms in the manic state of patients with BD (r = 0.79, p = .031).

conclusionThe nervonic acid levels in the CSF did not differ among the patients with MDD, BD, and the healthy controls; however, a significant negative correlation with depressive symptoms and a positive correlation with manic symptoms was observed. Thus, the nervonic acid levels in the CSF may be a candidate biomarker for mood symptoms.

Indexed as

Major Depressive DisorderBiomarkersFatty Acids, MonounsaturatedHumansPilot ProjectsBiomarkersFatty Acids, Monounsaturatednervonic acidbiomarkerbipolar disordercerebrospinal fluidmajor depressive disordernervonic acid

Identifiers

PMID33599392
PMCPMC8035447
OpenAlexW3131590803

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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.