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Investigation the Relationship of Autism Spectrum Disorder and FOXP2, GRIN2B, KATNAL2, GABRA4 Genes.


ABSTRACT:

Introduction

Autism spectrum disorder is a genetically and phenotypically heterogeneous group. Genetic studies carried out to date have suggested that both common and rare genetic variants play a role in the etiology of this disorder. In our study, we aimed to investigate the effect of FOXP2, GRIN2B, KATNAL2 and GABRA4 gene variants in the pathogenesis of autism spectrum disorder.

Method

In our prospectively planned study, all exons and exon-intron junctions of FOXP2, GRIN2B, KATNAL2 and GABRA4 genes were screened by next generation sequencing analysis in 96 patients who diagnosed with autism spectrum disorder.

Results

In our study, the average age was 10.1 and the male/female ratio was 75/21. Pathogenic or likely pathogenic variants were not detected in FOXP2, GRIN2B, KATNAL2 and GABRA4 genes, however, 69 intronic variants of unknown clinical significance were detected in 50 cases (52%). Among those, 26 were in the GABRA4 gene, 22 in the FOXP2 gene, 13 in the KATNAL2 gene, and 8 in the GRIN2B gene. Twenty three of these 69 variants were novel that were not previously reported in the literature.

Conclusion

In our study, we could not identify a relationship between the autism spectrum disorder and FOXP2, GRIN2B, KATNAL2 and GABRA4 genes. Identifying genetic risk factors that play a role in the etiopathogenesis of autism spectrum disorder will contribute significantly to understanding the molecular mechanisms of the disease and the development of new treatment strategies. In this context, comprehensive molecular genetic studies such as whole exome or whole genome sequencing are required with higher number of cases in different populations.

SUBMITTER: Yalcintepe S 

PROVIDER: S-EPMC8419723 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Publications

Investigation the Relationship of Autism Spectrum Disorder and <i>FOXP2, GRIN2B, KATNAL2, GABRA4</i> Genes.

Yalçintepe Sinem S   Görker Işık I   Demir Selma S   Atli Emine İkbal Eİ   Atli Engin E   Tozkir Hilmi H   Süt Necdet N   Özen Yasemin Y   Eker Damla D   Mail Çisem Ç   Güler Hazal Sezginer HS   Zhuri Drenushe D   Gurkan Hakan H  

Noro psikiyatri arsivi 20210826 3


<h4>Introduction</h4>Autism spectrum disorder is a genetically and phenotypically heterogeneous group. Genetic studies carried out to date have suggested that both common and rare genetic variants play a role in the etiology of this disorder. In our study, we aimed to investigate the effect of <i>FOXP2, GRIN2B, KATNAL2</i> and <i>GABRA4</i> gene variants in the pathogenesis of autism spectrum disorder.<h4>Method</h4>In our prospectively planned study, all exons and exon-intron junctions of <i>FO  ...[more]

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