Story perspectives

Study Links ADHD to Brain Cell Types, Signals Found

10/9/2025

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Summary

Story summary

Brain DNA methylation study shows fewer attention-deficit/hyperactivity disorder (ADHD) associations when adjusting for seven cell types.
Cell-type analyses identify ADHD signals, especially in microglia and GABAergic neurons.
No differences in brain cell-type proportions between ADHD and controls.
Genetic ADHD risk factors enriched in glutamatergic neurons and microglia.
Limitations: modest sample size and lack of replication; pursue methylation QTL (mQTL) analysis.

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Story summary

Brain DNA methylation study shows fewer attention-deficit/hyperactivity disorder (ADHD) associations when adjusting for seven cell types.
Cell-type analyses identify ADHD signals, especially in microglia and GABAergic neurons.
No differences in brain cell-type proportions between ADHD and controls.
Genetic ADHD risk factors enriched in glutamatergic neurons and microglia.
Limitations: modest sample size and lack of replication; pursue methylation QTL (mQTL) analysis.