title: Obsessive-compulsive disorder and immunology: a review.
abstract: Interest in the possibility of an immune-mediated pathophysiology of obsessive-compulsive disorder and related disorders has increased. In the late 1980s, the National Institute of Mental Health reported an increase in obsessive-compulsive symptoms (OCS) in patients with Sydenham chorea (SC). Subsequently, a precipitating streptococcal infection in children with sudden onset of OCS but no chorea led to the coining of PANDAS (Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infection). This association has furthered interest in biological measures for immune and genetic susceptibility in non-PANDAS obsessive-compulsive disorder patients (OCD). Furthermore, some studies are trying to demonstrate alterations of immune parameters in OCD patients, with few positive results. In this narrative review, our objective was to describe the immunologic findings in OCD, PANDAS, and their association with SC.
authors.affiliation: Service of Psychiatry, Federal University of Minas Gerais, Belo Horizonte, Brazil; Department of Pharmacology, Federal University of Minas Gerais, Belo Horizonte, Brazil. fil_bh@yahoo.com.br
authors.forename: Felipe Filardi
authors.initials: FF
authors.lastname: da Rocha
authors.forename: Humberto
authors.initials: H
authors.lastname: Correa
authors.forename: Antonio Lucio
authors.initials: AL
authors.lastname: Teixeira
mesh_terms: D000486:Allergy and Immunology; D000818:Animals; D020274:Autoimmune Diseases of the Nervous System / Q000150:complications / Q000276:immunology; D002819:Chorea / Q000150:complications / Q000276:immunology; D006801:Humans; D009771:Obsessive-Compulsive Disorder / Q000150:complications / Q000276:immunology*