von Carlos Trenado ; Paula Trauberg ; Saskia Elben ; Karina Dimenshteyn ; Ann-Kristin Folkerts ; Karsten Witt ; Daniel Weiss ; Inga Liepelt-Scarfone ; Elke Kalbe ; Lars Wojtecki
von Mojtaba Oraki Kohshour ; Eva C. Schulte ; Urs Heilbronner ; Monika Budde ; Janos L. Kalman ; Fanny Senner ; Maria Heilbronner ; Daniela Reich-Erkelenz ; Sabrina K. Schaupp ; Thomas Vogl ; Kristina Adorjan ; Ion-George Anghelescu ; Volker Arolt ; Bernhardt T. Baune ; Udo Dannlowski ; Detlef Dietrich ; Andreas Fallgatter ; Christian Figge ; Markus Jäger ; Fabian U. Lang ; Georg Juckel ; Carsten Konrad ; Jens Reimer ; Eva Z. Reininghaus ; Max Schmauß ; Carsten Spitzer ; Martin von Hagen ; Jens Wiltfang ; Jörg Zimmermann ; Till F. M. Andlauer ; Markus Maria Nöthen ; Franziska Degenhardt ; Andreas J. Forstner ; Marcella Rietschel ; Stephanie Witt ; Andre Fischer ; Peter Falkai ; Sergi Papiol ; Thomas G. Schulze
Background - Mitochondria generate energy through oxidative phosphorylation (OXPHOS). The function of key OXPHOS proteins can be altered by variation in mitochondria-related genes, which may increase the risk of mental illness. We investigated the association of mitochondria-related genes and their genetic risk burden with cognitive performance. - Methods - We leveraged cross-sectional data from 1320 individuals with a severe psychiatric disorder and 466 neurotypical individuals from the PsyCourse Study. The cognitive tests analyzed were the Trail-Making Test, Verbal Digit Span Test, Digit-Symbol Test, and Multiple Choice Vocabulary Intelligence Test. Association analyses between the cognitive tests, and single-nucleotide polymorphisms (SNPs) mapped to mitochondria-related genes, and their polygenic risk score (PRS) for schizophrenia (SCZ) were performed with PLINK 1.9 and R program. - Results - We found a significant association (FDR-adjusted p < 0.05) in the Cytochrome C Oxidase Assembly Factor 8 (COA8) gene locus of the OXPHOS pathway with the Verbal Digit Span (forward) test. Mitochondrial PRS was not significantly associated with any of the cognitive tests. - Limitations - Moderate statistical power due to relatively small sample size. - Conclusions - COA8 encodes a poorly characterized mitochondrial protein involved in apoptosis. Here, this gene was associated with the Verbal Digit Span (forward) test, which evaluates short-term memory. Our results warrant replication and may lead to better understanding of cognitive impairment in mental disorders.
Journal of affective disorders Amsterdam [u.a.] : Elsevier Science, 1979 325(2023) vom: Jan., Seite 1-6 Online-Ressource