CDK5 and hepatitis C virus infection: Since the suggestions about the association between changes in the expression of the genes GIT1, CFL1, CDK5 and CRMP2 and the development of neuropsychiatric disorders are based on information and evidence obtained from patients with neuropsychiatric disorders who did not have HCV infection, it is necessary that further experimental investigations be conducted to confirm this association in patients with hepatitis C before and after DAA treatment.