Translational Neuroscience Approaches to Understanding Autism.

This review explains how scientists use animal models to better understand autism. Since studying human brains is difficult, researchers use animals from flies to monkeys to learn about the brain systems involved in autism symptoms like social challenges and repetitive behaviors. These animal studies help scientists understand what causes autism and test new treatments safely before trying them in humans.

This review examines translational neuroscience approaches to understanding autism spectrum disorder, which affects nearly 2% of US children. The authors highlight significant challenges in autism research, including substantial heterogeneity in symptom presentation, numerous co-occurring conditions, and limited availability of postmortem brain tissue for cellular and molecular studies. Animal models are presented as valuable translational tools for defining neural systems involved in social behavior and repetitive behaviors/interests. The review covers various animal species used as autism models, from flies to nonhuman primates, evaluating their advantages and limitations.

These models can be based on genetic or environmental autism risk factors and may ultimately serve to test potential therapeutic interventions.

Animal models offer valuable translational approaches for understanding autism neurobiology when human tissue studies are limited. These models may accelerate therapeutic development by providing platforms to test safety and effectiveness of potential treatments before human trials. However, careful consideration of each model's advantages and limitations is essential for appropriate clinical translation.

This is a narrative review without systematic methodology reported. No specific data analysis or quantitative findings are presented. The abstract does not provide details about the quality assessment of included studies or specific evidence from the animal models discussed.

While autism spectrum disorder affects nearly 2% of children in the United States, little is known with certainty concerning the etiologies and brain systems involved. This is due, in part, to the substantial heterogeneity in the presentation of the core symptoms of autism as well as the great number of co-occurring conditions that are common in autistic individuals. Understanding the neurobiology of autism is further hampered by the limited availability of postmortem brain tissue to determine the cellular and molecular alterations that take place in the autistic brain. Animal models therefore provide great translational value in helping to define the neural systems that constitute the social brain and mediate repetitive behaviors or interests.

If they are based on genetic or environmental factors that contribute to autism, organisms from flies to nonhuman primates may serve as models of the neural structure or function of the autistic brain. Ultimately, successful models can also be employed to test the safety and effectiveness of potential therapeutics. This is an overview of the major animal species that are currently used as models of autism, including an appraisal of the advantages and limitations of each.