Inflammatory cytokines dysfunction in autism spectrum disorder

Introduction Autism spectrum disorder (ASD) is a common neurodevelopmental disorder. Its underlying causes and pathophysiologies remain unclear. Recent data support the potential involvement of neuroinflammation in the onset of this disorder. Objectives The aim of our study was to investigate th...

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Main Authors: A. Ben Othman, H. Slama, E. Cherif, M. Azaiez, H. Gharsallah
Format: Article
Language:English
Published: Cambridge University Press 2021-04-01
Series:European Psychiatry
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S092493382100571X/type/journal_article
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author A. Ben Othman
H. Slama
E. Cherif
M. Azaiez
H. Gharsallah
author_facet A. Ben Othman
H. Slama
E. Cherif
M. Azaiez
H. Gharsallah
author_sort A. Ben Othman
collection DOAJ
description Introduction Autism spectrum disorder (ASD) is a common neurodevelopmental disorder. Its underlying causes and pathophysiologies remain unclear. Recent data support the potential involvement of neuroinflammation in the onset of this disorder. Objectives The aim of our study was to investigate the potential link between ASD and inflammatory mediators. Methods This descriptive study was conducted among ASD outpatients followed-up at the child and adolescent psychiatry department in the Military Hospital of Instruction of Tunis. Blood samples were collected for inflammatory cytokines dosage, notably the interleukin 1β (IL-1β), interleukin 6 (IL-6) and the Tumor Necrosis Factor α (TNF-α) immunodosage. Results Twenty-four patients were included in this study, aged between four and ten years old (mean age= 6,55 years; minimum=4; maximum=10 years). Our sample was mainly represented by male patients (95,6%). TNF-α plasmatic levels were high (>5pg/mL) among all of our sample with a mean of 11,6 pg/mL (minimum= 6,87; maximum=17,7 pg/mL; standard deviation= 3,52 pg/mL), suggesting abnormal peripheral blood mononuclear cells response. However, IL-1β and IL-6 plasmatic levels were relatively normal. Conclusions An immune response dysregulation was detected in our sample. Multiple clinical and experimental studies investigated the implication of inflammatory cytokines in neurodevelopmental disruption. Their results, however, remain controversial and limited by small samples. Further studies need to be done in order to investigate the neuroimmunological factors linked with ASD.
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spelling doaj.art-bbe89adeee7f41068ac352b6dafabd842023-11-17T05:05:45ZengCambridge University PressEuropean Psychiatry0924-93381778-35852021-04-0164S214S21510.1192/j.eurpsy.2021.571Inflammatory cytokines dysfunction in autism spectrum disorderA. Ben Othman0H. Slama1E. Cherif2M. Azaiez3H. Gharsallah4Child And Adolescent Psychiatry, Military Hospital of Instruction of Tunis, Tunis, TunisiaChild And Adolescent Psychiatry, Military Hospital of Instruction of Tunis, Tunis, TunisiaChild And Adolescent Psychiatry, Military Hospital of Instruction of Tunis, Tunis, TunisiaChild And Adolescent Psychiatry, Military Hospital of Instruction of Tunis, Tunis, TunisiaAnesthesiology And Intensive Therapy, Military Hospital of Instruction of Tunis, Tunis, Tunisia Introduction Autism spectrum disorder (ASD) is a common neurodevelopmental disorder. Its underlying causes and pathophysiologies remain unclear. Recent data support the potential involvement of neuroinflammation in the onset of this disorder. Objectives The aim of our study was to investigate the potential link between ASD and inflammatory mediators. Methods This descriptive study was conducted among ASD outpatients followed-up at the child and adolescent psychiatry department in the Military Hospital of Instruction of Tunis. Blood samples were collected for inflammatory cytokines dosage, notably the interleukin 1β (IL-1β), interleukin 6 (IL-6) and the Tumor Necrosis Factor α (TNF-α) immunodosage. Results Twenty-four patients were included in this study, aged between four and ten years old (mean age= 6,55 years; minimum=4; maximum=10 years). Our sample was mainly represented by male patients (95,6%). TNF-α plasmatic levels were high (>5pg/mL) among all of our sample with a mean of 11,6 pg/mL (minimum= 6,87; maximum=17,7 pg/mL; standard deviation= 3,52 pg/mL), suggesting abnormal peripheral blood mononuclear cells response. However, IL-1β and IL-6 plasmatic levels were relatively normal. Conclusions An immune response dysregulation was detected in our sample. Multiple clinical and experimental studies investigated the implication of inflammatory cytokines in neurodevelopmental disruption. Their results, however, remain controversial and limited by small samples. Further studies need to be done in order to investigate the neuroimmunological factors linked with ASD. https://www.cambridge.org/core/product/identifier/S092493382100571X/type/journal_articleautism spectrum disorderneurodevelopmentneuroinflammationinflammatory cytokines
spellingShingle A. Ben Othman
H. Slama
E. Cherif
M. Azaiez
H. Gharsallah
Inflammatory cytokines dysfunction in autism spectrum disorder
European Psychiatry
autism spectrum disorder
neurodevelopment
neuroinflammation
inflammatory cytokines
title Inflammatory cytokines dysfunction in autism spectrum disorder
title_full Inflammatory cytokines dysfunction in autism spectrum disorder
title_fullStr Inflammatory cytokines dysfunction in autism spectrum disorder
title_full_unstemmed Inflammatory cytokines dysfunction in autism spectrum disorder
title_short Inflammatory cytokines dysfunction in autism spectrum disorder
title_sort inflammatory cytokines dysfunction in autism spectrum disorder
topic autism spectrum disorder
neurodevelopment
neuroinflammation
inflammatory cytokines
url https://www.cambridge.org/core/product/identifier/S092493382100571X/type/journal_article
work_keys_str_mv AT abenothman inflammatorycytokinesdysfunctioninautismspectrumdisorder
AT hslama inflammatorycytokinesdysfunctioninautismspectrumdisorder
AT echerif inflammatorycytokinesdysfunctioninautismspectrumdisorder
AT mazaiez inflammatorycytokinesdysfunctioninautismspectrumdisorder
AT hgharsallah inflammatorycytokinesdysfunctioninautismspectrumdisorder