scholarly journals Altered Cytokine and BDNF Levels in Individuals with Autism Spectrum Disorders

Author(s):  
Yvonne M.Y. Han ◽  
Suk Yu Yau ◽  
Melody M.Y. Chan ◽  
Chun Kwok Wong ◽  
Agnes S. Chan

Abstract Previous studies have shown that immunological factors are involved in the pathogenesis of autism spectrum disorders (ASDs). The present study examined whether immunological abnormalities are associated with cognitive deficits and problem behaviors in children with ASD and whether children with ASD show different immunological biomarkers and brain-derived neurotrophic factor BDNF levels than typically developing (TD) children. Sixteen TD and 18 children with ASD, aged 6–18 years, voluntarily participated in the study. Participants’ executive functions were measured using neuropsychological tests, and behavioral measures were measured using parent ratings. Immunological measures were assessed by measuring the levels of chemokine ligand 2 (CCL2) and chemokine ligand 5 (CCL5) in participants’ blood serum. Children with ASD showed greater deficits in cognitive functions as well as altered levels of immunological measures when compared to TD children, and their cognitive functions and behavior deficits were significantly associated with increased CCL5 levels and decreased BDNF levels. These results provide evidence to support the notion that altered immune functions are associated with neuronal deficits, are indexed by decreased levels of BDNF and manifest as selective cognitive and behavioral symptoms in individuals with ASD.

2016 ◽  
Vol 45 (3) ◽  
pp. 450-456 ◽  
Author(s):  
Marc J. Lanovaz ◽  
Sarah C. Huxley

Prior research has shown that background music may be effective at reducing problem behaviors maintained by non-social (sensory) reinforcement in children with autism spectrum disorders (ASD). However, no study has examined the effects of background music on socially-reinforced problem behaviors, which are also common in this population. Thus, the purpose of our study was to extend previous research by examining the effects of background music on engagement in problem behaviors maintained by social reinforcement in children with ASD. Following a music preference assessment and a functional analysis, we used an alternating-treatment design to examine the effects of background music on problem behaviors in three children with ASD. Background music produced clear reductions in problem behaviors for one participant and marginal reductions in a second participant. Albeit preliminarily, our results indicate that background music may reduce engagement in problem behaviors maintained by access to other socially-mediated reinforcers.


2010 ◽  
Vol 20 (2) ◽  
pp. 42-50 ◽  
Author(s):  
Laura W. Plexico ◽  
Julie E. Cleary ◽  
Ashlynn McAlpine ◽  
Allison M. Plumb

This descriptive study evaluates the speech disfluencies of 8 verbal children between 3 and 5 years of age with autism spectrum disorders (ASD). Speech samples were collected for each child during standardized interactions. Percentage and types of disfluencies observed during speech samples are discussed. Although they did not have a clinical diagnosis of stuttering, all of the young children with ASD in this study produced disfluencies. In addition to stuttering-like disfluencies and other typical disfluencies, the children with ASD also produced atypical disfluencies, which usually are not observed in children with typically developing speech or developmental stuttering. (Yairi & Ambrose, 2005).


Author(s):  
Dominique H. Como ◽  
Leah I. Stein Duker ◽  
José C. Polido ◽  
Sharon A. Cermak

Children with autism spectrum disorders (ASD) are at risk for oral health disparities. With the dramatic rise in ASD prevalence to 1 in 54 children, it is likely that an increasing number of dental practitioners will encounter or be asked to treat children with ASD. This paper reviews explanations related to the increasing prevalence of ASD, provides reasons why children with ASD are at increased risk for poor oral health, and discusses unique interprofessional collaborations between dental practitioners and occupational therapists. Occupational therapists and dentists can work together to plan modifications to the dental environment or adapt dental protocols to reduce some of the barriers encountered by those with ASD, provide desensitization strategies before the clinic visit, or help a child with emotional regulation during clinical treatments.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Mohammad Ali Ghaffari ◽  
Elham Mousavinejad ◽  
Forough Riahi ◽  
Masoumeh Mousavinejad ◽  
Mohammad Reza Afsharmanesh

Background. Autism spectrum disorders (ASDs) are complex disorders where the pathogenesis is not fully understood. Several proinflammatory and immunoinflammatory disturbances have been observed in the etiology of ASD. There is, however, limited knowledge on variations of adipokines in ASD. The present study aimed to analyze the serum levels of resistin, visfatin, and tumor necrosis factor-alpha (TNF-α) in children with ASD in relation to body weight, gender, and ASD severity level. Method. In total, 30 children with ASD (mean age: 7.72±2.65 y; range; 4–12 y) and 30 healthy children (mean age: 8.4±2.66 y; range: 4–12 y), including males and females, were matched for age, gender, and body mass index (BMI). Serum samples were collected, and visfatin, resistin, and TNF-α serum levels were measured using an enzyme-linked immunosorbent assay (ELISA) kit. Result. Serum visfatin, resistin, and TNF-α levels in children with ASD were significantly higher than that in the healthy patients (p<0.05). Two significant correlations were found: a correlation between resistin and visfatin with TNF-α in children with ASD (R = 0.8 and R = 0.62, resp.) and a correlation between resistin and visfatin in children with ASD (R = 0.66). Conclusion. Higher TNF-α, resistin, and visfatin levels were found in children with ASD in comparison with controls, suggesting that elevated levels of serum proinflammatory agents may be implicated in the pathophysiology of ASD.


2017 ◽  
Vol 41 (S1) ◽  
pp. S214-S214 ◽  
Author(s):  
L. Kobylinska ◽  
C.G. Anghel ◽  
I. Mihailescu ◽  
F. Rad ◽  
I. Dobrescu

Children with autism spectrum disorders (ASD) have a less definitive hand preference for certain actions as opposed to neurotypical children. Moreover, left-handedness in children with ASD has been associated with more echolalia. The objective was to conduct a screening of potential risk and associated features for autism spectrum disorders, among which the hand preference of the child. The current aim is to compare the perceived handedness of children with autism spectrum disorders with that of children with other psychiatric pathologies.MethodsEight hundred and forty-two parents completed our risk and associated features screening questionnaire. Out of these, 494 answered the question regarding handedness (209 had children diagnosed with ASD). This asked the parents to state how they perceived their child's handedness. An ADOS assessment has been conducted for 170 of the children whose parents were included in the study, based on clinical relevance for the case. The data were analysed using Excel and SPSS 22.0. For the comparisons, Chi2 and the Kruskal–Wallis test were used.ResultsChildren with ASD had more left-handedness (χ2(2) = 12.54, P = 0.002). There were no differences between boys and girls in terms of perceived handedness in any of the groups. There were no differences in the ADOS scores according to the perceived hand laterality (χ2(2) = 0.58, P = 0.74).ConclusionRightward-asymmetry in regions of corpus callosum has been reported to correlate with symptoms severity in ASD. The finding of different perceived handedness in children with ASD versus children with other psychiatric pathologies is useful for designing appropriate, individualized training programs for motor therapy.Disclosure of interestThe authors have not supplied their declaration of competing interest.


Author(s):  
Sarah N. Douglas ◽  
Yan Shi ◽  
Saptarshi Das ◽  
Subir Biswas

Children with autism spectrum disorders (ASD) struggle to develop appropriate social skills, which can lead to later social rejection, isolation, and mental health concerns. Educators play an important role in supporting and monitoring social skill development for children with ASD, but the tools used by educators are often tedious, lack suitable sensitivity, provide limited information to plan interventions, and are time-consuming. Therefore, we conducted a study to evaluate the use of a sensor system to measure social proximity between three children with ASD and their peers in an inclusive preschool setting. We compared video-coded data with sensor data using point-by-point agreement to measure the accuracy of the sensor system. Results suggest that the sensor system can adequately measure social proximity between children with ASD and their peers. The next steps for sensor system validation are discussed along with clinical and educational implications, limitations, and future research directions.


2017 ◽  
Vol 15 (4) ◽  
pp. 57-60
Author(s):  
T.S. Kubasova

The State Darwin Museum has been carrying out work on the socio-cultural rehabilitation of people with disabilities with museum facilities for the many years. The museum is actively developing the direction on the complex adaptation for visitors with autism spectrum disorders.


2021 ◽  
pp. 1-10
Author(s):  
Barry Coughlan ◽  
Matt Woolgar ◽  
Marinus H. van IJzendoorn ◽  
Robbie Duschinsky

Abstract Children with autism spectrum disorders (ASDs), attention deficit hyperactivity disorder (ADHD) and disinhibited and reactive attachment disorders (RAD/DAD) often experience socioemotional problems. Elucidating a clear picture of these profiles is essential. Strengths and Difficulties Questionnaires (SDQs) were analysed from cohort of children with ASD (n = 1430), ADHD (n = 1193), and RAD/DAD (n = 39). Kruskal–Wallis Tests and network analytic techniques were used to investigate symptom profiles. Children with ASD experienced more emotional problems, peer problems and fewer prosocial behaviours. Children with ADHD and RAD/DAD had higher levels of hyperactivity and conduct problems. Overall, ASD and ADHD networks were highly correlated (rs = 0.82), and we did not observe a statistically significant difference in terms of global Strength.


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