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Open Access 01-12-2021 | Schizophrenia | Research article

Working memory deficits in schizophrenia are associated with the rs34884856 variant and expression levels of the NR4A2 gene in a sample Mexican population: a case control study

Authors: Elizabeth Ruiz-Sánchez, Janet Jiménez-Genchi, Yessica M. Alcántara-Flores, Carlos J. Castañeda-González, Carlos L. Aviña-Cervantes, Petra Yescas, María del Socorro González-Valadez, Nancy Martínez-Rodríguez, Antonio Ríos-Ortiz, Martha González-González, María E. López-Navarro, Patricia Rojas

Published in: BMC Psychiatry | Issue 1/2021

Abstract

Background

Cognitive functions represent useful endophenotypes to identify the association between genetic variants and schizophrenia. In this sense, the NR4A2 gene has been implicated in schizophrenia and cognition in different animal models and clinical trials. We hypothesized that the NR4A2 gene is associated with working memory performance in schizophrenia. This study aimed to analyze two variants and the expression levels of the NR4A2 gene with susceptibility to schizophrenia, as well as to evaluate whether possession of NR4A2 variants influence the possible correlation between gene expression and working memory performance in schizophrenia.

Methods

The current study included 187 schizophrenia patients and 227 controls genotyped for two of the most studied NR4A2 genetic variants in neurological and neuropsychiatric diseases. Genotyping was performed using High Resolution Melt and sequencing techniques. In addition, mRNA expression of NR4A2 was performed in peripheral mononuclear cells of 112 patients and 118 controls. A group of these participants, 54 patients and 87 controls, performed the working memory index of the WAIS III test.

Results

Both genotypic frequencies of the two variants and expression levels of the NR4A2 gene showed no significant difference when in patients versus controls. However, patients homozygous for the rs34884856 promoter variant showed a positive correlation between expression levels and auditory working memory.

Conclusions

Our finding suggested that changes in expression levels of the NR4A2 gene could be associated with working memory in schizophrenia depending on patients’ genotype in a sample from a Mexican population.

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Title: Working memory deficits in schizophrenia are associated with the rs34884856 variant and expression levels of the NR4A2 gene in a sample Mexican population: a case control study
Authors: Elizabeth Ruiz-Sánchez
Janet Jiménez-Genchi
Yessica M. Alcántara-Flores
Carlos J. Castañeda-González
Carlos L. Aviña-Cervantes
Petra Yescas
María del Socorro González-Valadez
Nancy Martínez-Rodríguez
Antonio Ríos-Ortiz
Martha González-González
María E. López-Navarro
Patricia Rojas
Publication date: 01-12-2021
Publisher: BioMed Central
Keyword: Schizophrenia
Published in: BMC Psychiatry / Issue 1/2021
Electronic ISSN: 1471-244X
DOI: https://doi.org/10.1186/s12888-021-03081-w

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Working memory deficits in schizophrenia are associated with the rs34884856 variant and expression levels of the NR4A2 gene in a sample Mexican population: a case control study

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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