Displaying publications 1 - 20 of 36 in total

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  1. Ahmad Basri MAF, Wan Ismail WS, Kamal Nor N, Mohd Tohit N, Ahmad MN, Mohamad Aun NS, et al.
    PLoS One, 2024;19(4):e0301517.
    PMID: 38574084 DOI: 10.1371/journal.pone.0301517
    The use of virtual reality in social skills training for high functioning autism spectrum disorder (HFASD) youth has been found to be engaging and enjoyable. Despite the promising results, previous literature indicates that there has been no consensus on the social skills target in the training content. There is also limited research on how evidence-based strategies like cognitive and behaviour techniques are instantiated into the VR environment to teach social skills. The aim of this study is to determine the key components to design a social skills training content using virtual reality for youths with HFASD. The Fuzzy Delphi method (FDM) was used to obtain expert consensus on social skills difficulties and cognitive behavioral techniques included in the content in three phases. In phase 1, a questionnaire was developed from in-depth interviews and scientific literature review. The in-depth interviews were conducted with 13 HFASD youth, 7 parents and 6 experts. In phase 2, 3 experts rated the relevance of the items in the questionnaire using an item-level content validity index (I-CVI) assessment. In phase 3, the questionnaire was distributed to 10 experts to rate their level of agreement on each component using a 7-point Likert scale. Components that received a value above 75%, threshold value (d) ≤ 0.2, fuzzy score (A) ≥ α - cut value = 0.5 and higher rank based on defuzzification score were prioritized to be included in the content. Items that received higher expert consensus on social skills difficulties included assessing non-verbal responses, initiating, maintaining, and leaving conversations, emotional difficulties and difficulties in perspective taking. Cognitive and behavioral techniques that received higher expert consensus were psychoeducation, modelling, relaxation techniques, reinforcements, and perspective-taking questions. These key components can be used as a framework for the development of virtual learning content for social skills training in future studies.
    Matched MeSH terms: Autistic Disorder*
  2. Andoy Galvan JA, Ramalingam PN, Patil SS, Bin Shobri MAS, Chinna K, Sahrir MS, et al.
    Heliyon, 2020 Oct;6(10):e05068.
    PMID: 33083595 DOI: 10.1016/j.heliyon.2020.e05068
    Rising prevalence of autism spectrum disorders (ASD) in the last decades has led research to focus on the diagnosis and identification of factors associated with ASD. This paper sought for possible factors that put children at risk for ASD. In this study, we investigated the association between ASD and parental ages, parental age gaps, birth order and birth delivery method in Malaysian population. In this school-based case control study, 465 children with ASD 464 controls participated. Questionnaires were distributed to the parents of the selected children through the respective principals. Among the tested variables, Caesarean section (OR = 1.63, 95% CI 1.20, 2.20), earlier order of birth in the family (OR = 0.68, 95% CI 0.59, 0.77) and increasing gap in parental ages (OR = 1.04, 95% CI 1.001, 1.07) were significantly associated with ASD. This study concludes that Caesarean section, earlier order of birth in the family and increasing gap in parental age are independent risk factors for developing autism among Malaysian children.
    Matched MeSH terms: Autistic Disorder
  3. Asahar SF, Malek KA, Isa MR
    PMID: 34574788 DOI: 10.3390/ijerph18189861
    Caring for children with autism spectrum disorder (ASD) negatively impacts quality of life (QoL). This cross-sectional study aimed to determine the factors associated with perceived QoL and how problematic a child's autism-specific difficulties are among the main caregivers of children with ASD who attend specialized preschool programs at the National Autism Society of Malaysia and IDEAS Autism Centre located in Selangor and Kuala Lumpur. Utilizing the questions from Parts A and B of the Quality of Life in Autism Questionnaire (QoLA), the data from 116 responders were analyzed using univariate and multivariate linear regression. The mean scores of Part A and Part B were 88.55 ± 17.25 and 56.55 ± 12.35, respectively. The QoL was significantly associated with staying in an apartment/flat -11.37 (95%CI: -19.52, -1.17, p = 0.008), main caregivers attending two training sessions 10.35 (95%CI: 1.17, 19.52, p = 0.028), and more than three training sessions 13.36 (95%CI: 2.01, 24.70, p = 0.022). Main caregiver perceptions of their child's autistic-specific difficulties were significantly associated with not receiving additional help for childcare: no maid -13.54 (95%CI: -24.17, -12.91, p = 0.013); no grandparent -8.65 (95%: -14.33, -2.96, p = 0.003); and main caregivers not having asthma 8.44 (95%CI: 0.02, 16.86, p = 0.049). These identified factors can be considered to inform main caregivers and health care providers on targeted ways to improve the QoL of main caregivers.
    Matched MeSH terms: Autistic Disorder*
  4. Banire B, Jomhari N, Ahmad R
    J Autism Dev Disord, 2015 Oct;45(10):3069-84.
    PMID: 25997598 DOI: 10.1007/s10803-015-2469-7
    The effect of education on children with autism serves as a relative cure for their deficits. As a result of this, they require special techniques to gain their attention and interest in learning as compared to typical children. Several studies have shown that these children are visual learners. In this study, we proposed a Visual Hybrid Development Learning System (VHDLS) framework that is based on an instructional design model, multimedia cognitive learning theory, and learning style in order to guide software developers in developing learning systems for children with autism. The results from this study showed that the attention of children with autism increased more with the proposed VHDLS framework.
    Matched MeSH terms: Autistic Disorder/psychology*
  5. Cheah, Pike-See, Mason, John O., Ling, King-Hwa
    MyJurnal
    The human brain is made up of billions of neurons and glial cells which are interconnected and organized into specific patternsof neural circuitry, and hence is arguably the most sophisticated organ in human, both structurally and functionally.Studying the underlying mechanisms responsible for neurologicalor neurodegenerativedisorders and the developmental basis of complex brain diseases such as autism, schizophrenia, bipolar disorder, Alzheimer’s and Parkinson’s disease has proven challenging due to practical and ethical limitations on experiments with human material and the limitationsof existing biological/animal models. Recently,cerebral organoids havebeen proposed as apromisingand revolutionary model for understanding complex brain disorders and preclinical drug screening.
    Matched MeSH terms: Autistic Disorder
  6. Chen BC, McGown IN, Thong MK, Pitt J, Yunus ZM, Khoo TB, et al.
    J Inherit Metab Dis, 2010 Dec;33 Suppl 3:S159-62.
    PMID: 20177786 DOI: 10.1007/s10545-010-9056-z
    Most cases of adenylosuccinate lyase (ADSL OMIM 103050) deficiency reported to date are confined to the various European ethnic groups. We report on the first Malaysian case of ADSL deficiency, which appears also to be the first reported Asian case. The case was diagnosed among a cohort of 450 patients with clinical features of psychomotor retardation, global developmental delay, seizures, microcephaly and/or autistic behaviour. The patient presented with frequent convulsions and severe myoclonic jerk within the first few days of life and severe psychomotor retardation. The high performance liquid chromatography (HPLC) profile of the urine revealed the characteristic biochemical markers of succinyladenosine (S-Ado) and succinyl-aminoimidazole carboximide riboside (SAICAr). The urinary S-Ado/SAICAr ratio was found to be 1.02 (type I ADSL deficiency). The patient was compound heterozygous for two novel mutations, c.445C > G (p.R149G) and c.774_778insG (p.A260GfsX24).
    Matched MeSH terms: Autistic Disorder
  7. Deena Clare Thomas, Julie C M, Helda A H, Nurhani Nadiah B, Ranita M
    MyJurnal
    Introduction: Autism spectrum disorder (ASD) is a developmental disability that can cause significant social, com- munication and behavioral challenges. According to the 2017 survey by the Ministry of Health Malaysia, children between the ages of 18 to 26 months showed ASD occurs approximately 1.6 in1000 children. In Sabah, 400 autistic children had been registered under Sabah Autism Society (SAS). The increasing prevalence of ASD had become a major concern not only to the parents but to the community. A correct understanding and perception about ASD are crucial especially to the nursing profession as they must be able to educate caregiver on how to manage patients with ASD. Methods: This is a quantitative study using a cross-sectional approach. The respondents are all nursing students in Sabah. The type of sampling is purposive, which is using snowball sampling methods. Research instruments were developed and distributed to all nursing colleges in Sabah. Results: A total of 115 students responded. The majority of age is within range of 18–20 years old and female students. Fifty percents (50%) respondents perceived that of autism is a socio-emotional and neuro-developmental disorder with a non-verbal behaviors’ impairment, curable disorder with proper treatment. More than fifty percent (50%) disagree that autistic child does not want friends and equivalent stand on the statement about autistic child can live independently. Ninety five percent (90%) agree that social media plays an important platform to deliver facts about autism, and health care provider remains as a key role to increase the level of awareness to the community. Conclusion: Results of this study revealed that nursing students in Sabah have a good awareness and perception towards autistic disorder. Nursing students in Sabah agree that social media plays a vital part to increase the level of awareness and perception.
    Matched MeSH terms: Autistic Disorder
  8. Eow SY, Gan WY, Lim PY, Awang H, Mohd Shariff Z
    Res Dev Disabil, 2020 May;100:103632.
    PMID: 32179381 DOI: 10.1016/j.ridd.2020.103632
    BACKGROUND: Children with Autism Spectrum Disorder (ASD) of different levels of symptom severity may exhibit a wide range of behaviours and characteristics. There is a limited nutrition-related study on children with ASD of different severity in Malaysia.

    AIMS: This cross-sectional study aims to determine the association between sociodemographic factors, parental factors, and lifestyle factors with autism severity in children with ASD.

    METHODS AND PROCEDURES: A total of 224 children with ASD were included in this study. Their mothers completed a self-administered questionnaire on sociodemographic characteristics, autism severity, parenting style, parental feeding practices, parenting stress, child's sleep habits and eating behaviours.

    OUTCOMES AND RESULTS: As high as 78.1 % of the children with ASD demonstrated a high level of autism severity. Multiple linear regression showed that father's employment status (B = 6.970, 95 % CI = 3.172, 10.768, p 

    Matched MeSH terms: Autistic Disorder/physiopathology*
  9. Freeth M, Sheppard E, Ramachandran R, Milne E
    J Autism Dev Disord, 2013 Nov;43(11):2569-83.
    PMID: 23494561 DOI: 10.1007/s10803-013-1808-9
    The disorder of autism is widely recognised throughout the world. However, the diagnostic criteria and theories of autism are based on research predominantly conducted in Western cultures. Here we compare the expression of autistic traits in a sample of neurotypical individuals from one Western culture (UK) and two Eastern cultures (India and Malaysia), using the Autism-spectrum Quotient (AQ) in order to identify possible cultural differences in the expression of autistic traits. Behaviours associated with autistic traits were reported to a greater extent in the Eastern cultures than the Western culture. Males scored higher than females and science students scored higher than non-science students in each culture. Indian students scored higher than both other groups on the Imagination sub-scale, Malaysian students scored higher than both other groups on the Attention Switching sub-scale. The underlying factor structures of the AQ for each population were derived and discussed.
    Matched MeSH terms: Autistic Disorder/diagnosis*
  10. Gallagher D, Voronova A, Zander MA, Cancino GI, Bramall A, Krause MP, et al.
    Dev. Cell, 2015 Jan 12;32(1):31-42.
    PMID: 25556659 DOI: 10.1016/j.devcel.2014.11.031
    Ankrd11 is a potential chromatin regulator implicated in neural development and autism spectrum disorder (ASD) with no known function in the brain. Here, we show that knockdown of Ankrd11 in developing murine or human cortical neural precursors caused decreased proliferation, reduced neurogenesis, and aberrant neuronal positioning. Similar cellular phenotypes and aberrant ASD-like behaviors were observed in Yoda mice carrying a point mutation in the Ankrd11 HDAC-binding domain. Consistent with a role for Ankrd11 in histone acetylation, Ankrd11 was associated with chromatin and colocalized with HDAC3, and expression and histone acetylation of Ankrd11 target genes were altered in Yoda neural precursors. Moreover, the Ankrd11 knockdown-mediated decrease in precursor proliferation was rescued by inhibiting histone acetyltransferase activity or expressing HDAC3. Thus, Ankrd11 is a crucial chromatin regulator that controls histone acetylation and gene expression during neural development, thereby providing a likely explanation for its association with cognitive dysfunction and ASD.
    Matched MeSH terms: Autistic Disorder/genetics; Autistic Disorder/metabolism; Autistic Disorder/pathology*
  11. Gowen E, Jachim S, Subri S, Dickinson C, Hamblin-Pyke B, Warren PA
    Vision Res, 2020 12;177:56-67.
    PMID: 32977182 DOI: 10.1016/j.visres.2020.08.004
    Alongside difficulties with communication and social interaction, autism is often accompanied by unusual sensory and perceptual experiences including enhanced visual performance on tasks that involve separating local parts from global context. This superiority may be the result of atypical integrative processing, involving feedback and lateral connections between visual neurons. The current study investigated the integrity of these connections in autistic adults by examining two psychophysics tasks that rely on these processes - collinear facilitation and contour integration. The relative contribution of feedback and lateral connectivity was studied by altering the timing of the target relative to the flankers in the collinear facilitation task, in 16 autistic and 16 non-autistic adults. There were no significant differences in facilitation between the autistic and non-autistic groups, indicating that for this task and participant sample, lateral and feedback connectivity appear relatively intact in autistic individuals. Contour integration was examined in a different group of 20 autistic and 18 non-autistic individuals, for open and closed contours to assess the closure effect (improved detection of closed compared to open contours). Autistic individuals showed a reduced closure effect at both short (150 ms) and longer (500 ms) stimulus presentation durations that was driven by better performance of the autistic group for the open contours. These results suggest that reduced closure in a simple contour detection paradigm is unlikely to be due to slower global processing. Reduced closure has implications for understanding sensory overload by contributing to reduced figure-ground segregation of salient visual features.
    Matched MeSH terms: Autistic Disorder*
  12. Hameed SS, Hassan R, Muhammad FF
    PLoS One, 2017;12(11):e0187371.
    PMID: 29095904 DOI: 10.1371/journal.pone.0187371
    In this work, gene expression in autism spectrum disorder (ASD) is analyzed with the goal of selecting the most attributed genes and performing classification. The objective was achieved by utilizing a combination of various statistical filters and a wrapper-based geometric binary particle swarm optimization-support vector machine (GBPSO-SVM) algorithm. The utilization of different filters was accentuated by incorporating a mean and median ratio criterion to remove very similar genes. The results showed that the most discriminative genes that were identified in the first and last selection steps included the presence of a repetitive gene (CAPS2), which was assigned as the gene most highly related to ASD risk. The merged gene subset that was selected by the GBPSO-SVM algorithm was able to enhance the classification accuracy.
    Matched MeSH terms: Autistic Disorder/genetics*
  13. Ilias K, Cornish K, Kummar AS, Park MS, Golden KJ
    Front Psychol, 2018;9:280.
    PMID: 29686632 DOI: 10.3389/fpsyg.2018.00280
    Background: This paper aimed to review the literature on the factors associated with parenting stress and resilience among parents of children with autism spectrum disorder (ASD) in the South East Asia (SEA) region. Methods: An extensive search of articles in multiple online databases (PsycNET, ProQuest, PudMed, EMBASE, CINAHL, Web of Science, and Google Scholar) resulted in 28 papers that met the inclusion criteria (i.e., conducted in the SEA region, specific to ASD only, published in a peer-reviewed journal, full text in English). Studies found were conducted in the following countries: Brunei, n = 1; Indonesia, n = 2; Malaysia, n = 12; Philippines, n = 5; Singapore, n = 5, Thailand, n = 2; and Vietnam, n = 1, but none from Cambodia, East Timor, Laos, and Myanmar were identified. Results: Across the studies, six main factors were found to be associated with parenting stress: social support, severity of autism symptoms, financial difficulty, parents' perception and understanding toward ASD, parents' anxiety and worries about their child's future, and religious beliefs. These six factors could also be categorized as either a source of parenting stress or a coping strategy/resilience mechanism that may attenuate parenting stress. Conclusion: The findings suggest that greater support services in Western countries may underlie the cultural differences observed in the SEA region. Limitations in the current review were identified. The limited number of studies yielded from the search suggests a need for expanded research on ASD and parenting stress, coping, and resilience in the SEA region especially in Cambodia, East Timor, Laos, and Myanmar. The identified stress and resilience factors may serve as sociocultural markers for clinicians, psychologists, and other professionals to consider when supporting parents of children with ASD.
    Matched MeSH terms: Autistic Disorder
  14. 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: Autistic Disorder/classification; Autistic Disorder/diagnosis*; Autistic Disorder/psychology
  15. Leong D, Hedley D, Uljarević M
    J Child Neurol, 2020 03;35(3):247-248.
    PMID: 31726922 DOI: 10.1177/0883073819887587
    Matched MeSH terms: Autistic Disorder*
  16. Longhurst P, Aspell J, Todd J, Swami V
    Body Image, 2024 Mar;48:101655.
    PMID: 38042087 DOI: 10.1016/j.bodyim.2023.101655
    While scholars have investigated positive body image across diverse populations, extant theory largely excludes those with differing socio-cognitive experiences, such as autistic individuals. Using constructivist grounded theory, this study sought to develop a grounded theory of positive body image in autistic individuals. One-to-one interviews with photo-elicitation were conducted with 20 autistic adults (7 women, 8 men, 5 non-binary/agender; aged 18-53 years) from the United Kingdom. Through a process of open, axial, and focused coding, a grounded theory was developed around a core category of positive body image in autistic adults and was found to comprise six themes: body connection, body acceptance, appreciating body functionality and neurodivergent strengths, having a body-positive protective filter, taking care of the body, and body and appearance neutrality. Our findings suggest that some aspects of positive body image in autistic individuals are consistent with those found in neurotypical adults. However, positive body image in autistic individuals further encompasses both the sensory (i.e., how the body is felt) and aesthetic (i.e., how the body is seen) body. These findings may stimulate research aimed at improving positive body image in autistic populations.
    Matched MeSH terms: Autistic Disorder*
  17. Low SJX, Pillai SK, Singh Gill J, Sinniah K, Swami V
    Matched MeSH terms: Autistic Disorder
  18. Masiran R
    BMJ Case Rep, 2018 Sep 05;2018.
    PMID: 30185454 DOI: 10.1136/bcr-2018-226270
    An adolescent with autism spectrum disorder and improperly treated attention deficit hyperactivity disorder presented with recurrent hair pulling. Treatment with selective serotonin reuptake inhibitor and stimulant improved these conditions.
    Matched MeSH terms: Autistic Disorder/complications; Autistic Disorder/drug therapy*
  19. Mohamad FH, Has ATC
    J Mol Neurosci, 2019 Feb;67(2):343-351.
    PMID: 30607899 DOI: 10.1007/s12031-018-1246-4
    GABAA receptors are the major inhibitory neurotransmitter receptor in the human brain. The receptors are assembled from combination of protein subunits in pentameric complex which may consist of α1-6, β1-3, γ1-3, ρ1-3, δ, ε, θ, or π subunits. There are a theoretical > 150,000 possible assemblies and arrangements of GABAA subunits, although only a few combinations have been found in human with the most dominant consists of 2α1, 2β2, and 1γ2 in a counterclockwise arrangement as seen from the synaptic cleft. The receptors also possess binding sites for various unrelated substances including benzodiazepines, barbiturates, and anesthetics. The α5-containing GABAARs only make up ≤ 5% of the entire receptor population, but up to 25% of the receptor subtype is located in the crucial learning and memory-associated area of the brain-the hippocampus, which has ignited myriads of hypotheses and theories in regard to its role. As well as exhibiting synaptic phasic inhibition, the α5-containing receptors are also extrasynaptic and mediate tonic inhibition with continuously occurring smaller amplitude. Studies on negative-allosteric modulators for reducing this tonic inhibition have been shown to enhance learning and memory in neurological disorders such as schizophrenia, Down syndrome, and autism with a possible alternative benzodiazepine binding site. Therefore, a few α5 subunit-specific compounds have been developed to address these pharmacological needs. With its small population, the α5-containing receptors could be the key and also the answer for many untreated cognitive dysfunctions and disorders.
    Matched MeSH terms: Autistic Disorder
  20. Nayan NS, Yazid MAM, Nallappan K, Amran AA, Zaidi NS, Zakaria F, et al.
    Oxid Med Cell Longev, 2020;2020:4539891.
    PMID: 33335642 DOI: 10.1155/2020/4539891
    Autism has been associated with a low antioxidant defense mechanism, while honey has been known for decades for its antioxidant and healing properties. Determination of stingless bee honey (KH) effects on antioxidant enzyme activities and oxidative damage in Autism Lymphoblastoid Cell Line (ALCL) was performed. ALCL and its normal sibling pair (NALCL) were cultured in RPMI-1640 medium at 37°C and 5% CO2. ALCL was treated with 400 μg/mL KH (24 h), and oxidative stress marker, malondialdehyde (MDA), and antioxidant enzyme activities (catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD)) were measured via enzyme-linked immunosorbent assay (ELISA), while deoxyribonucleic acid (DNA) damage was determined via comet assay. Low SOD activity (p < 0.05) and high MDA level (p < 0.05) were observed in ALCL compared to NALCL. Higher grade (Grades 2 and 3) of DNA damage was highly observed (p < 0.05) in ALCL compared to NALCL, whereas lower grade (Grades 0 and 1) DNA damage was highly detected (p < 0.05) in NALCL compared to ALCL. KH treatment caused a significant increase in SOD and GPx activities (p < 0.05) in ALCL compared to untreated ALCL. Correspondingly, KH treatment reduced the Grade 2 DNA damage (p < 0.05) in ALCL compared to untreated ALCL. CAT activity showed no significant difference between all three groups, while the MDA level showed no significant difference between treated and untreated ALCL. In conclusion, KH treatment significantly reduced the oxidative stress in ALCL by increasing the SOD and GPx antioxidant enzyme activities, while reducing the DNA damage.
    Matched MeSH terms: Autistic Disorder/drug therapy; Autistic Disorder/enzymology*
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