A preliminary study of the genes related to aggression and insensitivity to pain in autism spectrum disorders

Objective: Autism spectrum disorders (ASDs) is a heterogeneous neuropsychiatric disorder with widespread abnormalities of social interaction and communication, showing severely restricted interests and extreme repetitive behavior. The relationship between aggressive behavior, insensitivity to pain, and ASDs could not be explained completely. Therefore, we aimed to contribute to the etiology by examining the gene expressions of OPRL1, TACR1, and HTR1E in patients with ASDs