I already mentioned that A allele in rs53576 SNP of theOXTRgene is linked to the development of autism.27Functional changes in brain areas (involved in social cognition and interaction) such as the amygdala, medial prefrontal cortex, and insula due to variations in oxytocin receptor genes could be linked to the development of autism.38But symptoms of autism can be alleviated through intranasal administration of oxytocin.39, 40, 41In addition to autism, the oxytocinergic system is involved in the development of SAD. This evidence concerns the gene OXT and autism.