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Related Concept Videos

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
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Behavioral Genetics and Its Designs01:23

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Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
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Human Genetics01:28

Human Genetics

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
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Incomplete Dominance01:43

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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Author Spotlight: Exploring Autism Spectrum Disorder Symptoms in Fruit Flies — Genetic Models and Behavioral Tests
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Autism genetics - an overview.

Jiani Yin1,2, Christian P Schaaf1,2

  • 1Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.

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Summary
This summary is machine-generated.

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with over 800 identified genes. This review explores autism genetics, research models, key genes, and emerging theories on its pathogenesis.

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Area of Science:

  • Neuroscience
  • Genetics
  • Developmental Biology

Background:

  • Autism spectrum disorder (ASD) is a highly heritable neurodevelopmental disorder.
  • Remarkable genetic heterogeneity exists, with over 800 ASD predisposition genes identified.
  • These genes impact diverse biological processes, including gene regulation, cell growth, and neuronal development.

Purpose of the Study:

  • To review the fundamental genetics of autism.
  • To discuss methodologies for investigating ASD in model systems.
  • To introduce novel theories of ASD pathogenesis.

Main Methods:

  • Literature review of genetic studies in autism.
  • Analysis of molecular pathways associated with identified ASD genes.
  • Discussion of emerging theories including excitatory/inhibitory imbalance and the female protective model.

Main Results:

  • Over 800 genes linked to ASD, affecting chromatin remodeling, gene transcription, cell growth, ubiquitination, and neuronal processes.
  • Key genes and their molecular pathways are highlighted.
  • Novel theories like excitatory/inhibitory imbalance, oligogenic heterozygosity, and the female protective model are introduced.

Conclusions:

  • Understanding the genetic basis of ASD is crucial for unraveling its complex pathogenesis.
  • Investigating ASD in model systems provides insights into molecular mechanisms.
  • Emerging theories offer new perspectives on ASD development and potential therapeutic targets.