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Related Experiment Video

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Heterogeneity-Aware, Multiscale Annotation of Shared and Specific Neurobiological Signatures among Major

Yunheng Diao1, Yuanyuan Huang2, Baoyuan Zhu1

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Summary

This study reveals a shared brain connectivity pattern across autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), and schizophrenia (SCZ), alongside unique deviations specific to each neurodevelopmental disorder.

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Area of Science:

  • Neuroscience
  • Genetics
  • Neuroimaging

Background:

  • Autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder (ADHD), and schizophrenia (SCZ) are major neurodevelopmental disorders.
  • These conditions share genetic and phenotypic overlap, but their neurobiological underpinnings are not fully understood.

Purpose of the Study:

  • To identify shared and disorder-specific neurobiological mechanisms across ASD, ADHD, and SCZ using functional connectivity.
  • To investigate the biological basis of these neurobiological differences through multi-omic data integration.

Main Methods:

  • Analysis of resting-state functional magnetic resonance imaging (rs-fMRI) data from 2,176 participants.
  • Application of heterogeneous matrix factorization and partial least squares to identify connectivity patterns.
  • Annotation of network edges with transcriptomic, neurotransmitter, and mitochondrial data.

Main Results:

  • A shared transdiagnostic abnormal connectivity pattern (STACP) was identified, linking deep regulatory and cortical perceptual-executive networks.
  • Disorder-specific connectivity deviations (DSCDs) showed opposing patterns in ASD and ADHD, while SCZ exhibited widespread desynchronization.
  • STACP and DSCDs were associated with distinct biological pathways, including synaptic development, lipid metabolism, glutamatergic plasticity, immune activation, and dopaminergic regulation.

Conclusions:

  • The study provides a systems-level characterization of shared and distinct neurobiological features across major neurodevelopmental disorders.
  • Findings highlight the importance of connectivity patterns in understanding the neurobiology of ASD, ADHD, and SCZ.
  • The research offers insights into potential therapeutic targets by linking connectivity to specific biological mechanisms.