1. Al-Ayadhi LY, Mostafa GA. {{A lack of association between elevated serum levels of S100B protein and autoimmunity in autistic children}}. {J Neuroinflammation};2012 (Mar 16);9(1):54.
ABSTRACT: BACKGROUND: S100B is a calcium-binding protein that is produced primarily by astrocytes. Increased serum S100B protein levels reflect neurological damage. Autoimmunity may have a role in the pathogenesis of autism in some patients. Autoantibodies may cross the blood-brain barrier and combine with brain tissue antigens, forming immune complexes and resulting in neurological damage. We are the first to investigate the relationship between serum levels of S100B protein, a marker of neuronal damage, and antiribosomal P protein antibodies in autistic children. METHODS: Serum S100B protein and antiribosomal P antibodies were measured in 64 autistic children in comparison to 46 matched healthy children. RESULTS: Autistic children had significantly higher serum S100B protein levels than healthy controls (P < 0.001). Children with severe autism had significantly higher serum S100B protein than patients with mild to moderate autism (P = 0.01). Increased serum levels of antiribosomal P antibodies were found in 40.6% of autistic children. There were no significant correlations between serum levels of S100B protein and antiribosomal P antibodies (P = 0.29). CONCLUSIONS: S100B protein levels were elevated in autistic children and significantly correlated to autistic severity. This may indicate the presence of an underlying neuropathological condition in autistic patients. Antiribosomal P antibodies may not be a possible contributing factor to the elevated serum levels of S100B protein in some autistic children. However, further research is warranted to investigate the possible link between serum S100B protein levels and other autoantibodies, which are possible indicators of autoimmunity to central nervous system in autism.
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2. Bruder MB, Kerins G, Mazzarella C, Sims J, Stein N. {{Brief Report: The Medical Care of Adults with Autism Spectrum Disorders: Identifying the Needs}}. {J Autism Dev Disord};2012 (Mar 17)
There is a lack of information concerning adults with autism spectrum disorder (ASD), especially with regards to their access to health care. A paper and electronic survey was sent to 1,580 primary care physicians in Connecticut. 346 respondents returned a survey and provided care to adults with an ASD. This physician survey provides data on adults with ASD such as: reasons for physician visits, living arrangements, employment status, and any services they are receiving. Responses revealed inadequate training in the care of adults with an ASD and physicians interest in obtaining additional training. The ability to provide a medical home for adults with autism will need to address effective strategies to train current and future physicians.
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3. Chevallier C, Kohls G, Troiani V, Brodkin ES, Schultz RT. {{The social motivation theory of autism}}. {Trends Cogn Sci};2012 (Mar 17)
The idea that social motivation deficits play a central role in Autism Spectrum Disorders (ASD) has recently gained increased interest. This constitutes a shift in autism research, which has traditionally focused more intensely on cognitive impairments, such as theory-of-mind deficits or executive dysfunction, and has granted comparatively less attention to motivational factors. This review delineates the concept of social motivation and capitalizes on recent findings in several research areas to provide an integrated account of social motivation at the behavioral, biological and evolutionary levels. We conclude that ASD can be construed as an extreme case of diminished social motivation and, as such, provides a powerful model to understand humans’ intrinsic drive to seek acceptance and avoid rejection.
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4. Ducharme JM, Ng O. {{Errorless Academic Compliance Training: A School-Based Application for Young Students With Autism}}. {Behav Modif};2012 (Mar 15)
Errorless academic compliance training is a graduated, noncoercive approach to treating oppositional behavior in children. In the present study, three teaching staff in a special education classroom were trained to conduct this intervention with three male students diagnosed with autism spectrum disorders. During baseline, staff delivered a range of academic and other classroom requests and recorded student compliance. A hierarchy of compliance probabilities was then calculated, ranging from Level 1 (requests yielding high levels of compliance) to Level 4 (those typically yielding noncompliance). At treatment initiation, teaching staff delivered high densities of Level 1 requests and provided reinforcement for compliance. Subsequent request levels were faded in over time, at a slow enough rate to ensure continued high compliance. By intervention end, all three students demonstrated substantially improved compliance to classroom requests that had commonly yielded noncompliance before intervention. Covariant improvement in on-task skills was also evident.
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5. Duerden EG, Oatley HK, Mak-Fan KM, McGrath PA, Taylor MJ, Szatmari P, Roberts SW. {{Risk Factors Associated with Self-Injurious Behaviors in Children and Adolescents with Autism Spectrum Disorders}}. {J Autism Dev Disord};2012 (Mar 16)
While self-injurious behaviors (SIB) can cause significant morbidity for children with autism spectrum disorders (ASD), little is known about its associated risk factors. We assessed 7 factors that may influence self-injury in a large cohort of children with ASD: (a) atypical sensory processing; (b) impaired cognitive ability; (c) abnormal functional communication; (d) abnormal social functioning; (e) age; (f) the need for sameness; (g) rituals and compulsions. Half (52.3%, n = 126) of the children (n = 241, aged 2-19 years) demonstrated SIB. Abnormal sensory processing was the strongest single predictor of self-injury followed by sameness, impaired cognitive ability and social functioning. Since atypical sensory processing and sameness have a greater relative impact on SIB, treatment approaches that focus on these factors may be beneficial in reducing self-harm in children with ASD.
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6. Lauvin MA, Martineau J, Destrieux C, Andersson F, Bonnet-Brilhault F, Gomot M, El-Hage W, Cottier JP. {{Functional morphological imaging of autism spectrum disorders: Current position and theories proposed}}. {Diagn Interv Imaging};2012 (Mar);93(3):139-147.
Autism is a pervasive disorder of childhood development. Polymorphous clinical profiles combining various degrees of communication and social interaction with restricted and stereotyped behaviour are grouped under the heading of ‘autism spectrum disorders’ (ASD). Many teams are trying to pick out the underlying cerebral abnormalities in order to understand the neuronal networks involved in relationships with others. Here we review the morphological, spectroscopic and functional abnormalities in the amygdala-hippocampal circuit, the caudate nuclei, the cerebellum, and the frontotemporal regions, which have been described in subjects with ASD. White matter abnormalities have also been described in diffusion tensor imaging, leading to suspected damage to the subjacent neural networks, such as mirror neurones or the social brain.
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7. Meyza KZ, Blanchard DC, Pearson BL, Pobbe RL, Blanchard RJ. {{Fractone-associated N-sulfated heparan sulfate shows reduced quantity in BTBR T+tf/J mice: a strong model of autism}}. {Behav Brain Res};2012 (Mar 17);228(2):247-253.
BTBR T+tf/J (BTBR) mice show abnormal social, communicatory, and repetitive/stereotyped behaviors paralleling many of the symptoms of autism spectrum disorders. BTBR also show agenesis of the corpus callosum (CC) suggesting major perturbations of growth or guidance factors in the dorsal forebrain [1]. Heparan sulfate (HS) is a polysaccaride found in the brain and other animal tissues. It binds to a wide variety of ligands and through these ligands modulates a number of biological processes, including cell proliferation and differentiation, migration and guidance. It is aggregated on fractal-like structures (fractones) in the subventricular zone (SVZ), that may be visualized by laminin immunoreactivity (LAM-ir), as well as by HS immunoreactivity (HS-ir). We report that the lateral ventricles of BTBR mice were drastically reduced in area compared to C57BL/6J (B6) mice while the BTBR SVZ was significantly shorter than that of B6. In addition to much smaller fractones for BTBR, both HS and LAM-ir associated with fractones were significantly reduced in BTBR, and their anterior-posterior distributions were also altered. Finally, the ratio of HS to LAM in individual fractones was significantly higher in BTBR than in B6 mice. These data, in agreement with other findings linking HS to callosal development, suggest that variations in the quantity and distribution of HS in the SVZ of the lateral ventricles may be important modulators of the brain structural abnormalities of BTBR mice, and, potentially, contribute to the behavioral pathologies of these animals.
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8. Movsas TZ, Paneth N. {{The Effect of Gestational Age on Symptom Severity in Children with Autism Spectrum Disorder}}. {J Autism Dev Disord};2012 (Mar 16)
Between 2006 and 2010, two research-validated instruments, Social Communication Questionnaire (SCQ) and Social Responsiveness Scale (SRS) were filled out online by 4,188 mothers of Autism Spectrum Disorder (ASD) children, aged 4-21, as part of voluntary parental participation in a large web-based registry. Univariate and multivariate linear regression analysis (adjusted for child’s sex, ability to verbalize, categorical IQ score, and fetal growth rate) demonstrated significantly higher SCQ and SRS scores for ASD children of both preterm (<37 weeks) and post-term (>42 weeks) gestational age (GA) compared to ASD children of normal GA, thus indicating that both preterm and post-term children manifest increased ASD symptomatology. Normal GA at birth appears to mitigate the severity of autistic social impairment in ASD children.
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9. Olivar-Parra JS, De-La-Iglesia-Gutierrez M, Forns M. {{Training referential communicative skills to individuals with autism spectrum disorder: a pilot study}}. {Psychol Rep};2011 (Dec);109(3):921-939.
The present study reports the effects of referential communication training in individuals formally diagnosed with autism spectrum disorder (ASD). Participants were 20 children with ASD (M age = 14.3 yr., SD = 4.2; 6 girls, 14 boys) in the role of speakers and 20 control children, who acted as listeners. They were all enrolled in mainstream compulsory education. Inclusion/exclusion criteria were defined according to the clinical diagnosis of ASD, the presence or absence of additional or associated disability, previous training in referential communication, and any drug treatment. Speakers were randomly assigned to one of two groups (trained vs untrained). Linguistic age, cognitive level and autistic symptoms were analyzed, respectively, with the Peabody Picture Vocabulary Test (PPVT), the Wechsler Intelligence Scale (WISC-R or WAIS-III), and the Autistic Behavior Checklist (ABC). Communicative abilities were analyzed through two indexes related to message complexity and self-regulation. The trained group was trained in referential communication tasks (task analysis, role taking, and task evaluation), while the untrained group took part in a communicative game but without any specific communicative training. The results showed that the complexity of emitted messages had improved statistically significantly in the trained group as an effect of training. Ecological referential communication is shown to be an appropriate paradigm for studying the communicative process and its products and could be used to develop and implement a training program focused on those skills in which individuals with ASD are most deficient.
10. Unenge Hallerback M, Lugnegard T, Gillberg C. {{Is autism spectrum disorder common in schizophrenia?}}. {Psychiatry Res};2012 (Mar 13)
A century ago, Kraepelin and Bleuler observed that schizophrenia is often antedated by « premorbid » abnormalities. In this study we explore how the childhood neurodevelopmental problems found in patients with schizophrenia relate to the current concept of autism spectrum disorder (ASD). Forty-six young adult individuals with clinical diagnoses of schizophrenic psychotic disorders were assessed. The Structured Clinical Interview for DSM Disorders (SCID-I) was used in face-to-face psychiatric examination of each individual. In 32 of the 46 cases (70%), collateral information was provided by one or both parents. The Diagnostic Interview for Social and Communication disorders – eleventh version (DISCO-11) was used when interviewing these relatives. This instrument covers, in considerable depth, childhood development, adaptive functioning, and symptoms of ASD – current and lifetime. There is a strict algorithm for ASD diagnosis. About half of the cases with schizophrenic psychosis had ASD according to the results of the parental interview. The rate of ASD was strikingly high (60%) in the group with a SCID-I diagnosis of schizophrenia paranoid type. The findings underscore the need to revisit the DSM the either or stance between ASD and schizophrenia.
