Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities

Abstract Autism Spectrum Disorder (ASD) and learning disabilities are neurodevelopmental disabilities characterized by dramatically increasing incidence rates, yet the exact etiology for these disabilities is not identified. Impairment in tryptophan metabolism has been suggested to participate in th...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Aliaa M. Higazi, Hanan M. Kamel, Emad A. Abdel-Naeem, Noha M. Abdullah, Doaa M. Mahrous, Ashraf M. Osman
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
Materias:
R
Q
Acceso en línea:https://doaj.org/article/17f51597f9004c6ca731f220fe35572a
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:17f51597f9004c6ca731f220fe35572a
record_format dspace
spelling oai:doaj.org-article:17f51597f9004c6ca731f220fe35572a2021-12-02T16:36:12ZExpression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities10.1038/s41598-021-86162-w2045-2322https://doaj.org/article/17f51597f9004c6ca731f220fe35572a2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86162-whttps://doaj.org/toc/2045-2322Abstract Autism Spectrum Disorder (ASD) and learning disabilities are neurodevelopmental disabilities characterized by dramatically increasing incidence rates, yet the exact etiology for these disabilities is not identified. Impairment in tryptophan metabolism has been suggested to participate in the pathogenesis of ASD, however, further validation of its involvement is required. Additionally, its role in learning disabilities is still uninvestigated. Our objective was to evaluate some aspects of tryptophan metabolism in ASD children (N = 45) compared to children with learning disabilities (N = 44) and healthy controls (N = 40) by measuring the expression levels of the MAOA, HAAO and AADAT genes using real-time RT-qPCR. We also aimed to correlate the expression patterns of these genes with parental ages at the time of childbirth, levels of serum iron, and vitamin D3 and zinc/copper ratio, as possible risk factors for ASD. Results demonstrated a significant decrease in the expression of the selected genes within ASD children (p < 0.001) relative to children with learning disabilities and healthy controls, which significantly associated with the levels of our targeted risk factors (p < 0.05) and negatively correlated to ASD scoring (p < 0.001). In conclusion, this study suggests that the expression of the MAOA, HAAO and AADAT genes may underpin the pathophysiology of ASD.Aliaa M. HigaziHanan M. KamelEmad A. Abdel-NaeemNoha M. AbdullahDoaa M. MahrousAshraf M. OsmanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Aliaa M. Higazi
Hanan M. Kamel
Emad A. Abdel-Naeem
Noha M. Abdullah
Doaa M. Mahrous
Ashraf M. Osman
Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
description Abstract Autism Spectrum Disorder (ASD) and learning disabilities are neurodevelopmental disabilities characterized by dramatically increasing incidence rates, yet the exact etiology for these disabilities is not identified. Impairment in tryptophan metabolism has been suggested to participate in the pathogenesis of ASD, however, further validation of its involvement is required. Additionally, its role in learning disabilities is still uninvestigated. Our objective was to evaluate some aspects of tryptophan metabolism in ASD children (N = 45) compared to children with learning disabilities (N = 44) and healthy controls (N = 40) by measuring the expression levels of the MAOA, HAAO and AADAT genes using real-time RT-qPCR. We also aimed to correlate the expression patterns of these genes with parental ages at the time of childbirth, levels of serum iron, and vitamin D3 and zinc/copper ratio, as possible risk factors for ASD. Results demonstrated a significant decrease in the expression of the selected genes within ASD children (p < 0.001) relative to children with learning disabilities and healthy controls, which significantly associated with the levels of our targeted risk factors (p < 0.05) and negatively correlated to ASD scoring (p < 0.001). In conclusion, this study suggests that the expression of the MAOA, HAAO and AADAT genes may underpin the pathophysiology of ASD.
format article
author Aliaa M. Higazi
Hanan M. Kamel
Emad A. Abdel-Naeem
Noha M. Abdullah
Doaa M. Mahrous
Ashraf M. Osman
author_facet Aliaa M. Higazi
Hanan M. Kamel
Emad A. Abdel-Naeem
Noha M. Abdullah
Doaa M. Mahrous
Ashraf M. Osman
author_sort Aliaa M. Higazi
title Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
title_short Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
title_full Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
title_fullStr Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
title_full_unstemmed Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities
title_sort expression analysis of selected genes involved in tryptophan metabolic pathways in egyptian children with autism spectrum disorder and learning disabilities
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/17f51597f9004c6ca731f220fe35572a
work_keys_str_mv AT aliaamhigazi expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
AT hananmkamel expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
AT emadaabdelnaeem expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
AT nohamabdullah expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
AT doaammahrous expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
AT ashrafmosman expressionanalysisofselectedgenesinvolvedintryptophanmetabolicpathwaysinegyptianchildrenwithautismspectrumdisorderandlearningdisabilities
_version_ 1718383617466433536