TY - GEN AB - Globally, attention-deficit/hyperactivity disorder (ADHD), affects children, adolescents and adults, and can cause reduced academic achievement, occupational struggles, and social disability. Past research has attempted to explain the contributions of genetic and environmental factors in the functional connectivity of the human brain using twin's studies. The variation in genetic risk factors for ADHD explain a minimal proportion of observed cases, which suggests how genes are expressed and appear to affect the likelihood of diagnosis. While differences in neural functional connectivity have been observed on ADHD and typically developing children, the extent which these epigenetic factors contribute to differential neural behavior has not been investigated. To investigate epigenetic factors, one needs a cohort of twins that has discordant ADHD diagnoses, high quality resting-state functional magnetic resonance imaging (MRI) data, and epigenetic markers. We found that methylation at specific DNA sites was significantly correlated with surface area of the visual, dorsal attention, and salience networks in the cortex. This suggest that these three networks are expressing certain genes deferentially due to environmental factors, which affects the topology of the brain and may account for diagnosis outcome. AD - Portland State University AD - Portland State University AD - Portland State University AD - Portland State University AD - Portland State University AD - Portland State University AD - Portland State University AU - Estrada-Sanchez, Favio AU - Hermosillo, Robert AU - Nigg, Joel AU - Mooney, Michael AU - Nardos, Binyam AU - Earl, Eric AU - Fair, Damien DA - 2020 DO - 10.6083/b5644s23m DO - DOI ID - 8307 KW - Mental Disorders KW - Mental Health KW - Neurodevelopmental Disorders KW - Gene Expression KW - Attention Deficit Disorder with Hyperactivity KW - neural networks KW - epigenetics L1 - https://digitalcollections.ohsu.edu/record/8307/files/Favio-Estrada.pdf L2 - https://digitalcollections.ohsu.edu/record/8307/files/Favio-Estrada.pdf L4 - https://digitalcollections.ohsu.edu/record/8307/files/Favio-Estrada.pdf LA - eng LK - https://digitalcollections.ohsu.edu/record/8307/files/Favio-Estrada.pdf N2 - Globally, attention-deficit/hyperactivity disorder (ADHD), affects children, adolescents and adults, and can cause reduced academic achievement, occupational struggles, and social disability. Past research has attempted to explain the contributions of genetic and environmental factors in the functional connectivity of the human brain using twin's studies. The variation in genetic risk factors for ADHD explain a minimal proportion of observed cases, which suggests how genes are expressed and appear to affect the likelihood of diagnosis. While differences in neural functional connectivity have been observed on ADHD and typically developing children, the extent which these epigenetic factors contribute to differential neural behavior has not been investigated. To investigate epigenetic factors, one needs a cohort of twins that has discordant ADHD diagnoses, high quality resting-state functional magnetic resonance imaging (MRI) data, and epigenetic markers. We found that methylation at specific DNA sites was significantly correlated with surface area of the visual, dorsal attention, and salience networks in the cortex. This suggest that these three networks are expressing certain genes deferentially due to environmental factors, which affects the topology of the brain and may account for diagnosis outcome. PB - Oregon Health and Science University PY - 2020 T1 - DNA methylation correlates with network surface area in discordant ADHD twins TI - DNA methylation correlates with network surface area in discordant ADHD twins UR - https://digitalcollections.ohsu.edu/record/8307/files/Favio-Estrada.pdf Y1 - 2020 ER -