Differential gene expression analysis in blood of first episode psychosis patients.

A new interesting article has been published in Schizophr Res. 2019 Jul;209:88-97. doi: 10.1016/j.schres.2019.05.011. Epub 2019 May 19. and titled:

Differential gene expression analysis in blood of first episode psychosis patients.

Authors of this article are:

Leirer DJ, Iyegbe CO, Di Forti M, Patel H, Carra E, Fraietta S, Colizzi M, Mondelli V, Quattrone D, Lally J, Ajnakina O, Lee SH, Curtis CJ, Breen G, Pariante C, Aitchison K, Dazzan P, Murray RM, Dobson RJB, Newhouse SJ.

A summary of the article is shown below:

BACKGROUND: Psychosis is a condition influenced by an interaction of environmental and genetic factors. Gene expression studies can capture these interactions; however, studies are usually performed in patients who are in remission. This study uses blood of first episode psychosis patients, in order to characterise deregulated pathways associated with psychosis symptom dimensions.METHODS: Peripheral blood from 149 healthy controls and 131 first episode psychosis patients was profiled using Illumina HT-12 microarrays. A case/control differential expression analysis was performed, followed by correlation of gene expression with positive and negative syndrome scale (PANSS) scores. Enrichment analyses were performed on the associated gene lists. We test for pathway differences between first episode psychosis patients who qualify for a Schizophrenia diagnosis against those who do not.RESULTS: A total of 978 genes were differentially expressed and enriched for pathways associated to immune function and the mitochondria. Using PANSS scores we found that positive symptom severity was correlated with immune function, while negative symptoms correlated with mitochondrial pathways.CONCLUSIONS: Our results identified gene expression changes correlated with symptom severity and showed that key pathways are modulated by positive and negative symptom dimensions.Copyright © 2019 The Authors. Published by Elsevier B.V. All rights reserved.

Check out the article’s website on Pubmed for more information:

This article is a good source of information and a good way to become familiar with topics such as: Anti-psychotic medication;First episode psychosis;Gene expression;Immune system;PANSS;Transcriptome.

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