Evidence map›Paper›PMID 33988928›Full record

ArticleThe Journal of clinical psychiatry2021

Serum Fatty Acid Latent Classes Are Associated With Suicide in a Large Military Personnel Sample.

Arthur Thomas Ryan, Teodor T Postolache, Daniel Dennis Taub, Holly C Wilcox, Marjan Ghahramanlou-Holloway, John C Umhau, Patricia A Deuster

Abstract read
In one paragraph

Article in The Journal of clinical psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Observational
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.

Arthur Thomas RyanVeterans Affairs VISN 5 Mental Illness Research, Education, and Clinical Center (MIRECC), Baltimore, Maryland.
Teodor T PostolacheVeterans Affairs VISN 5 Mental Illness Research, Education, and Clinical Center (MIRECC), Baltimore, Maryland.
Daniel Dennis TaubWashington DC VA Medical Center, Washington, DC.
Holly C WilcoxDepartment of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
Marjan Ghahramanlou-HollowayDepartment of Medical and Clinical Psychology, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
John C UmhauOffice of New Drugs, Division of Psychiatry Products Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland.
Patricia A DeusterConsortium for Health and Military Performance, Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland.

Funding

Intramural VA VA999999
6 · The paper itself

Abstract

objectiveFatty acids (FAs) are involved in the functioning of biological systems previously associated with suicidal behavior (eg, monoamine signaling and the immune system). We sought to determine (1) whether observed FA levels in a sample of military suicide decedents and living matched controls were consistent with latent classes having distinctive FA profiles and (2) whether those latent classes were associated with suicide and mental health diagnoses.

methodsSerum samples from 800 US military suicide decedents who died between 2002 and 2008 and 800 demographically matched living controls were selected at random from a large military serum repository and assayed for 22 different FAs. A latent class cluster analysis was performed using values of 6 FAs previously individually associated with suicide. Once the latent classes were identified, they were compared in terms of suicide decedent proportion, demographic variables, estimated FA enzyme activity, diagnoses, and mental health care usage.

resultsA 6-latent class solution best characterized the dataset. Suicide decedents were less likely to belong to 2 of the classes and more likely to belong to 3 of the classes. The low-decedent classes differed from the high-decedent classes on 9 FAs and on estimated indices of activity for 3 FA enzymes: 14:0, 24:0, 18:1 n-9, 24:1 n-9, 22:5 n-3, 22:6 n-3, 20:2 n-6, 20:4 n-6, 22:5 n-6, elongation of very long chain fatty acids protein 1 (ELOVL1), ELOVL6, and Δ9 desaturase. The FA profiles of the latent classes were consistent with biological abnormalities previously associated with suicidal behavior.

conclusionsThis study suggests the utility of methods that simultaneously examine multiple FAs when trying to understand their relationship with suicide and psychiatric illness.

Indexed as

AdultCase-Control StudiesFatty AcidsFatty Acids, MonounsaturatedFatty Acids, Omega-3Fatty Acids, Omega-6FemaleHumansLatent Class AnalysisMaleMental DisordersMilitary PersonnelRisk FactorsSuicideUnited StatesFatty AcidsFatty Acids, MonounsaturatedFatty Acids, Omega-3Fatty Acids, Omega-6

Identifiers

PMID33988928
PMCPMC9308986

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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.