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Altered Expression of a Unique Set of Genes Reveals Complex Etiology of Schizophrenia

Abstract : Background: The etiology of schizophrenia is extensively debated, and multiple factors have been contended to be involved. A panoramic view of the contributing factors in a genome-wide study can be an effective strategy to provide a comprehensive understanding of its causality. Materials and Methods: GSE53987 dataset downloaded from GEO-database, which comprised mRNA expression data of post-mortem brain tissue across three regions from control (C) and age-matched subjects (T) of schizophrenia (N = Hippocampus [HIP]: C-15, T-18, Prefrontal cortex [PFC]: C-15, T-19, Associative striatum [STR]: C-18, T-18). Bio-conductor—affy—package used to compute mRNA expression, and further t-test applied to investigate differential gene expression. The analysis of the derived genes performed using the PANTHER Classification System and NCBI database. Further, a protein interactome analysis of the derived gene set was performed using STRING v10 database (https://string-db.org/) Results: A set of 40 genes showed significantly altered (p < 0.01) expression across all three brain regions. The analyses unraveled genes implicated in biological processes and events, and molecular pathways relating basic neuronal functions. Conclusions: The aberrant expression of genes maintaining basic cell machinery explains compromised neuronal processing in SCZ.
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Ashutosh Kumar, Vikas Pareek, Himanshu Singh, Muneeb Faiq, Ravi Narayan, et al.. Altered Expression of a Unique Set of Genes Reveals Complex Etiology of Schizophrenia. Frontiers in Psychiatry, Frontiers, 2019, 10, ⟨10.3389/fpsyt.2019.00906⟩. ⟨hal-02458882⟩

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