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  2. Aug 20, 2019 · Autism Spectrum Disorder (ASD) is one of the most prevalent neurodevelopmental disorders, affecting an estimated 1 in 59 children. ASD is highly genetically heterogeneous and may be caused by both inheritable and de novo gene variations. In the past decade, hundreds of genes have been identified that contribute to the serious deficits in ...

    • Figure 1

      Genetic modifiers in autism spectrum disorder. Autism is...

    • Overview
    • Symptoms
    • Causes
    • Risk Factors
    • Complications
    • Prevention

    Autism spectrum disorder is a condition related to brain development that impacts how a person perceives and socializes with others, causing problems in social interaction and communication. The disorder also includes limited and repetitive patterns of behavior. The term "spectrum" in autism spectrum disorder refers to the wide range of symptoms an...

    Some children show signs of autism spectrum disorder in early infancy, such as reduced eye contact, lack of response to their name or indifference to caregivers. Other children may develop normally for the first few months or years of life, but then suddenly become withdrawn or aggressive or lose language skills they've already acquired. Signs usua...

    Autism spectrum disorder has no single known cause. Given the complexity of the disorder, and the fact that symptoms and severity vary, there are probably many causes. Both genetics and environment may play a role. 1. Genetics.Several different genes appear to be involved in autism spectrum disorder. For some children, autism spectrum disorder can ...

    The number of children diagnosed with autism spectrum disorder is rising. It's not clear whether this is due to better detection and reporting or a real increase in the number of cases, or both. Autism spectrum disorder affects children of all races and nationalities, but certain factors increase a child's risk. These may include: 1. Your child's s...

    Problems with social interactions, communication and behavior can lead to: 1. Problems in school and with successful learning 2. Employment problems 3. Inability to live independently 4. Social isolation 5. Stress within the family 6. Victimization and being bullied

    There's no way to prevent autism spectrum disorder, but there are treatment options. Early diagnosis and intervention is most helpful and can improve behavior, skills and language development. However, intervention is helpful at any age. Though children usually don't outgrow autism spectrum disorder symptoms, they may learn to function well.

  3. Autism spectrum disorder (ASD) is a condition that appears very early in childhood development, varies in severity, and is characterized by impaired social skills, communication problems, and repetitive actions. These difficulties can interfere with affected individuals' ability to function in social, academic, and employment settings.

  4. What causes autism spectrum disorder? Although the cause of ASD is known in some people and not known in others, genetics, biology, and environment are all important factors. Having older parents, a difficult birth, or infections during pregnancy are all examples of factors that might increase the risk for having ASD. Beyond these factors ...

  5. Feb 26, 2021 · Abstract. Autism spectrum disorder (autism) is a heterogeneous group of neurodevelopmental conditions characterized by early childhood-onset impairments in communication and social interaction alongside restricted and repetitive behaviors and interests. This review summarizes recent developments in human genetics research in autism ...

    • A. Havdahl, A. Havdahl, M. Niarchou, A. Starnawska, A. Starnawska, M. Uddin, C. van der Merwe, V. Wa...
    • 10.1017/S0033291721000192
    • 2021
    • Psychol Med. 2021 Oct; 51(13): 2260-2273.
  6. Jun 15, 2022 · Translational Psychiatry - Genetics of autism spectrum disorder: an umbrella review of systematic reviews and meta-analyses ... ASD is the leading cause of disability in children under 5 years ...

  7. Apr 24, 2011 · Abstract: Autism is an etiologically and clinically heterogeneous group of disorders, diagnosed solely by the complex behavioral phenotype. On the basis of the high-heritability index, geneticists ...

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