OXTR and autism spectrum disorder: A growing body of literature explores the impact of OXTR SNP on autism spectrum disorder (Aspé-Sánchez et al. 2015; Hernandez et al. 2017; LoParo, Waldman 2015), while some OXTR SNPs may be associated with negative affects beyond autism (Kazantseva et al. 2020; Sicorello et al. 2020; Wu et al. 2020).