Laura Cho Rose Hills
Sex-Heterogeneous SNP Mediation of Psychiatric Comorbidity in ASD
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by repetitive behaviors, social communication deficits, and sensory processing difficulties. Highly heritable and male-biased, ASD is frequently comorbid with other psychiatric disorders, with 71% of ASD-affected children meeting criteria for a concurrent condition and 41% having 2 or more disorders. These attributes potentially implicate sex-interacting, heritable genetic variants in transdiagnostically manifesting psychiatric traits. I will investigate single nucleotide polymorphisms (SNPs) with sex-differentiated effect size for ASD, and test for enrichment in association signal for 8 other psychiatric disorders, as compared to sex-homogeneous SNPs. I hypothesize that sex-heterogeneous SNPs for ASD have more overlap with risk variants for these disorders, potentially indicating a shared biological basis for sex differences and psychiatric illness. This may have predictive utility for disease status, and could potentially support treatment personalizations for psychiatric disorders.