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Fulltext Autism spectrum disorders

Faras H, Al Ateeqi N, Tidmarsh L

Ann Saudi Med, 2010 Jul-Aug;30(4):295-300.
PMID: 20622347 DOI: 10.4103/0256-4947.65261

Pervasive developmental disorders are a group of neurodevelopmental disorders characterized by impairments in communication, reciprocal social interaction and restricted repetitive behaviors or interests. The term autism spectrum disorders (ASD) has been used to describe their variable presentation. Although the cause of these disorders is not yet known, studies strongly suggest a genetic basis with a complex mode of inheritance. More research is needed to explore environmental factors that could be contributing to the cause of these disorders. The occurrence of ASD has been increasing worldwide, with the most recent prevalence studies indicating that they are present in 6 per 1000 children. The objectives of this article are to provide physicians with relevant information needed to identify and refer children presenting with symptoms suggestive of ASDs to specialized centers early, and to make them feel comfortable in dealing with public concerns regarding controversial issues about the etiology and management of these disorders.

Matched MeSH terms: Child Development Disorders, Pervasive/epidemiology; Child Development Disorders, Pervasive/physiopathology*; Child Development Disorders, Pervasive/therapy
Fulltext A Mixed-Methods Evaluation of Parent-Assisted Children's Friendship Training to Improve Social Skills and Friendship Quality in Children with Autism in Malaysia

Ong SY, Roslan S, Ahmad NA, Ayub AFM, Ping CL, Zaremohzzabieh Z, et al.

Int J Environ Res Public Health, 2021 Mar 04;18(5).
PMID: 33806563 DOI: 10.3390/ijerph18052566

Background: This study evaluates the effectiveness of parent-assisted children's friendship training intervention for enhancing friendship quality and social skills among children with autism spectrum disorders (ASD). We conducted a quasi-experimental study to investigate the effective outcomes of social skills and friendship quality in the pre-and post-parent-assisted CFT intervention phases; Methods: to conduct a 12-week field session, 30 children with their parents were selected. The Social Skills Improvement System Rating Scales and the Quality of Play Questionnaire-Parent were used to assess the effectiveness of the parent-assisted children's friendship training during pre-and post-intervention. A semi-structured interview with parents was conducted at the end of the session; Results: findings revealed that intervention improved the social skills of these children. Additionally, the friendship quality of children with ASD improved before and after the intervention, however, engagement remained unchanged. Parents also showed some sort of improvement after the session as they reported a heightened sense of fear and resistance, awareness, learning and adjustment, change is not easy, and identifying support; Conclusions: there was clear evidence that children with ASD benefitted from parent-assisted CFTs in terms of social skills and friendship quality. However, larger and controlled studies are required to draw firm conclusions about this kind of intervention.

Matched MeSH terms: Child Development Disorders, Pervasive*
Fulltext Asperger's syndrome: a report of two cases from Malaysia

Kasmini K, Zasmani S

Singapore Med J, 1995 Dec;36(6):641-3.
PMID: 8781638

Asperger's Syndrome is a distinct variant of autism, with a prevalence rate of 10 to 26 per 10,000 of normal intelligence, and 0.4 per 10,000 in those with mild mental retardation. The syndrome now has its own clinical entity and diagnostic criteria. It is being officially listed in the ICD-10 under pervasive developmental disorder. Two such cases are described in this article. Case One lacked the ability to relate to others, was excessively preoccupied with the late actor P. Ramlee and demonstrated a peculiar behaviour of holding on to toothbrushes in his early childhood. Cognitively, he was unable to synthesise words into meaningful sentences. Similarly, Case Two was unable to relate well to others and was preoccupied with the planets and its constellations. Though he appeared intelligent with an IQ score of 101, he was unable to follow instructions at school. Both children had motor clumsiness and fulfilled the criteria for the diagnosis of Asperger's Syndrome.

Matched MeSH terms: Child Development Disorders, Pervasive/classification; Child Development Disorders, Pervasive/diagnosis*; Child Development Disorders, Pervasive/psychology
Using other minds as a window onto the world: guessing what happened from clues in behaviour

Pillai D, Sheppard E, Ropar D, Marsh L, Pearson A, Mitchell P

J Autism Dev Disord, 2014 Oct;44(10):2430-9.
PMID: 24710812 DOI: 10.1007/s10803-014-2106-x

It has been proposed that mentalising involves retrodicting as well as predicting behaviour, by inferring previous mental states of a target. This study investigated whether retrodiction is impaired in individuals with autism spectrum disorders (ASD). Participants watched videos of real people reacting to the researcher behaving in one of four possible ways. Their task was to decide which of these four "scenarios" each person responded to. Participants' eye movements were recorded. Participants with ASD were poorer than comparison participants at identifying the scenario to which people in the videos were responding. There were no group differences in time spent looking at the eyes or mouth. The findings imply those with ASD are impaired in using mentalising skills for retrodiction.

Matched MeSH terms: Child Development Disorders, Pervasive/physiopathology; Child Development Disorders, Pervasive/psychology*
Fulltext Identification of risk loci with shared effects on five major psychiatric disorders: a genome-wide analysis

Cross-Disorder Group of the Psychiatric Genomics Consortium

Lancet, 2013 Apr 20;381(9875):1371-9.
PMID: 23453885 DOI: 10.1016/S0140-6736(12)62129-1

BACKGROUND: Findings from family and twin studies suggest that genetic contributions to psychiatric disorders do not in all cases map to present diagnostic categories. We aimed to identify specific variants underlying genetic effects shared between the five disorders in the Psychiatric Genomics Consortium: autism spectrum disorder, attention deficit-hyperactivity disorder, bipolar disorder, major depressive disorder, and schizophrenia.
METHODS: We analysed genome-wide single-nucleotide polymorphism (SNP) data for the five disorders in 33,332 cases and 27,888 controls of European ancestory. To characterise allelic effects on each disorder, we applied a multinomial logistic regression procedure with model selection to identify the best-fitting model of relations between genotype and phenotype. We examined cross-disorder effects of genome-wide significant loci previously identified for bipolar disorder and schizophrenia, and used polygenic risk-score analysis to examine such effects from a broader set of common variants. We undertook pathway analyses to establish the biological associations underlying genetic overlap for the five disorders. We used enrichment analysis of expression quantitative trait loci (eQTL) data to assess whether SNPs with cross-disorder association were enriched for regulatory SNPs in post-mortem brain-tissue samples.
FINDINGS: SNPs at four loci surpassed the cutoff for genome-wide significance (p<5×10(-8)) in the primary analysis: regions on chromosomes 3p21 and 10q24, and SNPs within two L-type voltage-gated calcium channel subunits, CACNA1C and CACNB2. Model selection analysis supported effects of these loci for several disorders. Loci previously associated with bipolar disorder or schizophrenia had variable diagnostic specificity. Polygenic risk scores showed cross-disorder associations, notably between adult-onset disorders. Pathway analysis supported a role for calcium channel signalling genes for all five disorders. Finally, SNPs with evidence of cross-disorder association were enriched for brain eQTL markers.
INTERPRETATION: Our findings show that specific SNPs are associated with a range of psychiatric disorders of childhood onset or adult onset. In particular, variation in calcium-channel activity genes seems to have pleiotropic effects on psychopathology. These results provide evidence relevant to the goal of moving beyond descriptive syndromes in psychiatry, and towards a nosology informed by disease cause.
FUNDING: National Institute of Mental Health.

Matched MeSH terms: Child Development Disorders, Pervasive/genetics*; Child Development Disorders, Pervasive/epidemiology
Fulltext Clinical diagnosis and non-verbal ability of primary-one school children with LD

Toh, Teck Hock, Wong, See Chang, Muhamad Rais Abdullah

Int J Public Health Res, 2011;1(2):33-40.
MyJurnal

Introduction More school children were referred for learning difficutly (LD), especially after the introduction of LINUS sccreening programme by Ministry of Education Malaysia.
Aims To study the clinical diagnosis and non-verbal ability of primary-one school children with LD after paediatric assessment, as well as associated behavioural issues and socio-economincal background.
Methods Assessment findings by Paediatricians and Naglieri Non-Verbal Ability Test®(NNAT®) results of all primary-one school children referred in year 2010 with LD were studied retrospectively.
Results Ninety-three children were included (62.4% male), and 72.0% of them failed the LINUS screening programme. The commonest diagnoses were Borderline Intellectual Disability (ID, 37.6%) and Mild ID (19.4%). Other diagnoses included Attention Deficit Hyperactive Disorder (ADHD, 11.8%), Specific Learning Disability (SLD, 10.8%), Autistic Spectrum Disorder (n = 5) and Severe Language Disorder (n = 3). Mean NNAT scores were 84.6 ± 11.8 (n = 85), of which 9.4% children scored less than 70 (

Matched MeSH terms: Child Development Disorders, Pervasive