Zacharias, H.U.* ; Hertel, J.* ; Johar, H. ; Pietzner, M.* ; Lukaschek, K.* ; Atasoy, S.* ; Kunze, S. ; Völzke, H.* ; Nauck, M.* ; Friedrich, N.* ; Kastenmüller, G. ; Grabe, H.J.* ; Gieger, C. ; Krumsiek, J. ; Ladwig, K.-H.
A metabolome-wide association study in the general population reveals decreased levels of serum laurylcarnitine in people with depression.
Mol. Psychiatry 26, 7372–7383 (2021)
Depression constitutes a leading cause of disability worldwide. Despite extensive research on its interaction with psychobiological factors, associated pathways are far from being elucidated. Metabolomics, assessing the final products of complex biochemical reactions, has emerged as a valuable tool for exploring molecular pathways. We conducted a metabolome-wide association analysis to investigate the link between the serum metabolome and depressed mood (DM) in 1411 participants of the KORA (Cooperative Health Research in the Augsburg Region) F4 study (discovery cohort). Serum metabolomics data comprised 353 unique metabolites measured by Metabolon. We identified 72 (5.1%) KORA participants with DM. Linear regression tests were conducted modeling each metabolite value by DM status, adjusted for age, sex, body-mass index, antihypertensive, cardiovascular, antidiabetic, and thyroid gland hormone drugs, corticoids and antidepressants. Sensitivity analyses were performed in subcohorts stratified for sex, suicidal ideation, and use of antidepressants. We replicated our results in an independent sample of 968 participants of the SHIP-Trend (Study of Health in Pomerania) study including 52 (5.4%) individuals with DM (replication cohort). We found significantly lower laurylcarnitine levels in KORA F4 participants with DM after multiple testing correction according to Benjamini/Hochberg. This finding was replicated in the independent SHIP-Trend study. Laurylcarnitine remained significantly associated (p value < 0.05) with depression in samples stratified for sex, suicidal ideation, and antidepressant medication. Decreased blood laurylcarnitine levels in depressed individuals may point to impaired fatty acid oxidation and/or mitochondrial function in depressive disorders, possibly representing a novel therapeutic target.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
Acetyl-l-carnitine; Mitochondrial-function; Kynurenine Pathway; Cohort Profile; Disorder; Anxiety; Dysfunction; Validation; Biomarkers; Increases
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Language
english
Publication Year
2021
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2021
ISSN (print) / ISBN
1359-4184
e-ISSN
1476-5578
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Pages: 7372–7383
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Nature Publishing Group
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Campus, 4 Crinan St, London, N1 9xw, England
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Peer reviewed
POF-Topic(s)
30202 - Environmental Health
30205 - Bioengineering and Digital Health
Research field(s)
Genetics and Epidemiology
Enabling and Novel Technologies
PSP Element(s)
G-504000-003
G-504090-001
G-504091-004
G-503891-001
G-554100-001
Grants
German Federal State of Mecklenburg-West Pomerania
BMBF
State of Bavaria
German Research Center for Environmental Health - German Federal Ministry of Education and Research (BMBF)
Helmholtz Zentrum Munchen
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Erfassungsdatum
2021-07-01