scholarly journals The Alternations of Endocannabinoid System and its Therapeutic Potential in Autism Spectrum Disorder

2020 ◽  
Author(s):  
Mingyang Zou ◽  
Yu Liu ◽  
Shu Xie ◽  
Luxi Wang ◽  
Dexin Li ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Animal Model ◽  
Social Preference ◽  
Therapeutic Potential ◽  
Hydrolytic Enzyme ◽  
Endocannabinoid System ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Autistic Children ◽  
Novel Approach

Abstract Background: Autism spectrum disorder (ASD) is a group of developmental disabilities whose etiology remains elusive. The endocannabinoid (eCB) system modulated neurotransmission and neuronal plasticity. Evidence points to the involvement of this neuromodulatory system in the pathophysiology of ASD. Herein we investigated if there was disruption of eCB system in ASD and if pharmacological modulators of eCB system might have a therapeutic potential. Methods: We examined three major components of eCB system, namely, endogenous cannabinoids, their receptors and associated enzymes, in ASD children as well as in VPA-induced ASD animal model. Meanwhile we specially increased 2-arachidonylglycerol (2-AG) by administering JZL184, a selective inhibitor of monoacylglycerol lipase, the hydrolytic enzyme for 2-AG, and to examine ASD-like behaviors in VPA-induced rats. Results: Autistic children and VPA-induced rats exhibited the reduced eCBs content, elevated degrading enzymes, and up-regulation of CBRs. We found that repetitive and stereotypical behaviors, hyperactivity, sociability, social preference, and cognitive functioning were improved after acute and chronic JZL184 treatment. The major efficacy of JZL184 was observed at the dose of 3mg/kg for both affecting eCB system and ASD-like behaviors. Conclusions: There were a lower eCB signaling in autistic children and ASD animal model, and boosting 2-AG could ameliorate ASD-like phenotypes in animals. Collectively, the results suggest a novel approach to ASD treatment.

scholarly journals Alterations of the endocannabinoid system and its therapeutic potential in autism spectrum disorder

Open Biology ◽  
2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Mingyang Zou ◽  
Yu Liu ◽  
Shu Xie ◽  
Luxi Wang ◽  
Dexin Li ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Animal Model ◽  
Social Preference ◽  
Therapeutic Potential ◽  
Hydrolytic Enzyme ◽  
Endocannabinoid System ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Autistic Children ◽  
Novel Approach

Autism spectrum disorder (ASD) is a group of developmental disabilities, the aetiology of which remains elusive. The endocannabinoid (eCB) system modulates neurotransmission and neuronal plasticity. Evidence points to the involvement of this neuromodulatory system in the pathophysiology of ASD. We investigated whether there is a disruption to the eCB system in ASD and whether pharmacological modulation of the eCB system might offer therapeutic potential. We examined three major components of the eCB system—endogenous cannabinoids, their receptors and associated enzymes—in ASD children as well as in the valproic acid (VPA) induced animal model in autism. Furthermore, we specifically increased 2-arachidonoylglycerol (2-AG) levels by administering JZL184, a selective inhibitor of monoacylglycerol lipase which is the hydrolytic enzyme for 2-AG, to examine ASD-like behaviours in VPA-induced rats. Results showed that autistic children and VPA-induced rats exhibited reduced eCB content, increased degradation of enzymes and upregulation of CBRs. We found that repetitive and stereotypical behaviours, hyperactivity, sociability, social preference and cognitive functioning improved after acute and chronic JZL184 treatment. The major efficacy of JZL184 was observed after administration of a dosage regimen of 3 mg kg −1 , which affected both the eCB system and ASD-like behaviours. In conclusion, a reduced eCB signalling was observed in autistic children and in the ASD animal model, and boosting 2-AG could ameliorate ASD-like phenotypes in animals. Collectively, the results suggested a novel approach to ASD treatment.

Development of Neural Structure and Function in Autism Spectrum Disorder: Potential Implications for Learning Language

2020 ◽  
Vol 29 (4) ◽  
pp. 1783-1797
Author(s):  
Kelly L. Coburn ◽  
Diane L. Williams
Keyword(s):  
Autism Spectrum Disorder ◽  
Language Development ◽  
Diffusion Tensor ◽  
Autism Spectrum ◽  
Language Intervention ◽  
Spectrum Disorder ◽  
Autistic Children ◽  
Neural Structure ◽  
Complex Information ◽  
And Function

Purpose Neurodevelopmental processes that begin during gestation and continue throughout childhood typically support language development. Understanding these processes can help us to understand the disruptions to language that occur in neurodevelopmental conditions, such as autism spectrum disorder (ASD). Method For this tutorial, we conducted a focused literature review on typical postnatal brain development and structural and functional magnetic resonance imaging, diffusion tensor imaging, magnetoencephalography, and electroencephalography studies of the neurodevelopmental differences that occur in ASD. We then integrated this knowledge with the literature on evidence-based speech-language intervention practices for autistic children. Results In ASD, structural differences include altered patterns of cortical growth and myelination. Functional differences occur at all brain levels, from lateralization of cortical functions to the rhythmic activations of single neurons. Neuronal oscillations, in particular, could help explain disrupted language development by elucidating the timing differences that contribute to altered functional connectivity, complex information processing, and speech parsing. Findings related to implicit statistical learning, explicit task learning, multisensory integration, and reinforcement in ASD are also discussed. Conclusions Consideration of the neural differences in autistic children provides additional scientific support for current recommended language intervention practices. Recommendations consistent with these neurological findings include the use of short, simple utterances; repetition of syntactic structures using varied vocabulary; pause time; visual supports; and individualized sensory modifications.

scholarly journals Endocannabinoid System Dysregulation from Acetaminophen Use May Lead to Autism Spectrum Disorder: Could Cannabinoid Treatment Be Efficacious?

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1845
Author(s):  
Stephen Schultz ◽  
Georgianna G. Gould ◽  
Nicola Antonucci ◽  
Anna Lisa Brigida ◽  
Dario Siniscalco
Keyword(s):  
Autism Spectrum Disorder ◽  
Cannabinoid Receptors ◽  
Current Knowledge ◽  
Endocannabinoid System ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Blood Levels ◽  
Increased Risk ◽  
Patterns Of Behavior ◽  
Arachidonoyl Glycerol

Persistent deficits in social communication and interaction, and restricted, repetitive patterns of behavior, interests or activities, are the core items characterizing autism spectrum disorder (ASD). Strong inflammation states have been reported to be associated with ASD. The endocannabinoid system (ECS) may be involved in ASD pathophysiology. This complex network of lipid signaling pathways comprises arachidonic acid and 2-arachidonoyl glycerol-derived compounds, their G-protein-coupled receptors (cannabinoid receptors CB1 and CB2) and the associated enzymes. Alterations of the ECS have been reported in both the brain and the immune system of ASD subjects. ASD children show low EC tone as indicated by low blood levels of endocannabinoids. Acetaminophen use has been reported to be associated with an increased risk of ASD. This drug can act through the ECS to produce analgesia. It may be that acetaminophen use in children increases the risk for ASD by interfering with the ECS.This mini-review article summarizes the current knowledge on this topic.

scholarly journals Psychological Stress Among Mothers of Children with Autism Spectrum Disorder and Down Syndrome in the City of Kufra

2021 ◽  
Vol 2 (1) ◽  
pp. 29-41
Author(s):  
Mansour Mohammed Ali Bopaeda
Keyword(s):  
Autism Spectrum Disorder ◽  
Down Syndrome ◽  
Psychological Stress ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Autistic Children ◽  
Children With Down Syndrome ◽  
Level Of Significance ◽  
The City

Having a baby is a huge responsibility. It often happens that mothers, especially when they are having their first baby, feel stressed and incompetent in their role as mothers even as their children normally grows. The purpose of this article is to identify the general features of psychological stress among mothers of autism spectrum disorder and Down syndrome and to identify the differences and relationship in psychological stress between mothers of autism and down syndrome. In this study participated a group of mothers with children who have autism (n = 44) and mothers of children with Down syndrome (n = 44). The findings made proved that the general features of psychological stress are high Among mothers of autistic children, while it was low among mothers of Down syndrome, there were also statistically significant differences in the level of psychological stress between mothers of autism and Down syndrome, and a correlation was found between mothers of autism and Down syndrome at the level of significance (0.01).

Effect of physical therapy on 7- to 10-year-old children with autism spectrum disorder: A retrospective study in a university day hospital

2021 ◽  
Vol 85 (4) ◽  
pp. 385-404
Author(s):  
Jokthan Guivarch ◽  
Elisabeth Jouve ◽  
Elodie Avenel ◽  
François Poinso ◽  
Laura Conforti-Roussel
Keyword(s):  
Autism Spectrum Disorder ◽  
Retrospective Study ◽  
Motor Impairment ◽  
Autism Spectrum ◽  
The Body ◽  
Spectrum Disorder ◽  
Control Group ◽  
Autistic Children ◽  
Dance Movement ◽  
Cascading Effect

More than half of children who have autism spectrum disorder (ASD) suffer from motor impairment. In a retrospective study, the authors investigated the effect of a body-mediated workshop with dance movement therapy (DMT) on the motor skills and social skills of children with ASD by comparing 10 autistic children aged 7 to 10 years who benefited from DMT with 10 autistic children in a control group. Scores on the Movement Assessment Battery for Children and the Vineland Adaptive Behavior Scale were compared. The body-mediated workshop had significant benefits for motricity, especially manual dexterity, and for relational skills. A body-mediated workshop may have a multimodal effect and requires transmodal training. Regarding the mechanisms that explain the benefits and the cascading effect, the roles of imitation and multimodal connections are important.

Reducing facial dynamics’ speed during speech enhances attention to mouth in children with autism spectrum disorder: An eye-tracking study

2020 ◽  
pp. 1-10
Author(s):  
Bruno Gepner ◽  
Anaïs Godde ◽  
Aurore Charrier ◽  
Nicolas Carvalho ◽  
Carole Tardif
Keyword(s):  
Autism Spectrum Disorder ◽  
Eye Tracking ◽  
Real Time ◽  
Therapeutic Potential ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Visual Exploration ◽  
Children With Asd ◽  
The Face ◽  
Visual Fixations

Abstract Facial movements of others during verbal and social interaction are often too rapid to be faced and/or processed in time by numerous children and adults with autism spectrum disorder (ASD), which could contribute to their face-to-face interaction peculiarities. We wish here to measure the effect of reducing the speed of one's facial dynamics on the visual exploration of the face by children with ASD. Twenty-three children with ASD and 29 typically-developing control children matched for chronological age passively viewed a video of a speaker telling a story at various velocities, i.e., a real-time speed and two slowed-down speeds. The visual scene was divided into four areas of interest (AOI): face, mouth, eyes, and outside the face. With an eye-tracking system, we measured the percentage of total fixation duration per AOI and the number and mean duration of the visual fixations made on each AOI. In children with ASD, the mean duration of visual fixations on the mouth region, which correlated with their verbal level, increased at slowed-down velocity compared with the real-time one, a finding which parallels a result also found in the control children. These findings strengthen the therapeutic potential of slowness for enhancing verbal and language abilities in children with ASD.

The effectiveness of physical activity interventions on communication and social functioning in autistic children and adolescents: A meta-analysis of controlled trials

Autism ◽  
2020 ◽  
pp. 136236132097764
Author(s):  
John SY Chan ◽  
Kanfeng Deng ◽  
Jin H Yan
Keyword(s):  
Physical Activity ◽  
Autism Spectrum Disorder ◽  
Children And Adolescents ◽  
Social Functioning ◽  
Meta Analysis ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Controlled Trials ◽  
Autistic Children ◽  
Physical Activity Interventions

Difficulty with communication and social functioning are two outstanding core symptoms of autism spectrum disorder, and physical activity has long been suggested to improve autism spectrum disorder symptoms. In this meta-analysis of controlled trials, we examined the effects of physical activity interventions compared to controls on communication and social functioning in autistic children and adolescents. Included studies are published articles in English with autism spectrum disorder participants younger than 18 years. Literature search was conducted on MEDLINE, Embase, CINAHL, and related databases through 6 May 2020. Quality of study was assessed with the Cochrane risk-of-bias tool regarding randomization, allocation concealment, blinding, attrition, and selective reporting. We included 12 controlled trials ( N = 350) with communication outcomes ( k = 8) and/or social functioning outcomes ( k = 11). Results show small to moderate intervention benefits on communication (standardized mean change = 0.27, 95% confidence interval (0.06, 0.48)) and social functioning (standardized mean change = 0.39, 95% confidence interval (0.15, 0.63)), but the result for social functioning may be susceptible to publication bias. Better intervention outcomes are observed in younger participants, suggesting the importance of early participation. This study shows the benefits of physical activity interventions, and they could be considered a cost-effective means for autism spectrum disorder management in the future. Lay abstract Difficulty with communication and social functioning are two outstanding core symptoms of autism spectrum disorder, while there is no efficacious pharmacologic treatment available to deal with them. Traditional behavioral therapies usually require specialist therapist and be conducted in specific settings, increasing burdens on families and individuals with autism. Physical activity has long been found to promote physical and mental well-beings, and it is more affordable and versatile than traditional therapies. There is preliminary support for the use of physical activity interventions to improve communication and social functioning in individuals with autism. In this study, we quantitatively aggregate data from existing controlled trials to provide an up-to-date inquiry into the effectiveness of physical activity interventions on communication and social functioning in autistic children and adolescents. We included 12 trials involving 350 participants (8 trials reported communication outcomes and 11 trials reported social functioning outcomes) and found small to moderate benefits on communication and social functioning. Further analyses showed that the benefit of physical activity interventions is greater in younger participants. Results of this study suggest that physical activity interventions are effective to improve communication and social functioning in autistic children and adolescents, and early participation in the interventions can be more beneficial. Given their affordability, versatility, and efficacy, physical activity interventions could be considered a cost-effective option for autism spectrum disorder management in the future.

Parent training for Autism Spectrum Disorder

2020 ◽  
pp. 1-17
Author(s):  
Shamaila Ijaz ◽  
Farwa Rafaq ◽  
Sonia Haider
Keyword(s):  
Autism Spectrum Disorder ◽  
Communication Skills ◽  
Behavior Therapy ◽  
Autism Spectrum ◽  
Sampling Procedure ◽  
Spectrum Disorder ◽  
Autistic Children ◽  
Therapy Training ◽  
Knowledge Scale ◽  
Vineland Adaptive Behavior

Abstract Objective: The main purpose of the present study was to investigate the effectiveness of behavior therapy training to mothers of autistic children on verbal and non-verbal improvement of their children. Materials and Methods: A total of 33 mothers of autistic children were selected for training based on non-probability purposive sampling procedure.  Autism Spectrum Disorder (ASD) Knowledge Scale was used to assess mothers’ knowledge about autism and Vineland Adaptive Behavior Scale was used for assessment of the communication skill in autistic children. Results: This study revealed that behavior therapy training significantly improved communication skills of children with autism by training mothers. The results of paired t-test revealed that trained mothers developed improved communication skills. Conclusion: These results showed improvement in communication skills of autistic children whose mothers were trained in behavior therapy. Keywords: Behavior therapy, autism, training mothers. Continuous...

Sign in / Sign up

Export Citation Format

Share Document