Scientific publications

A preliminary study of the frequency of anti-basal ganglia antibodies and streptococcal infection in attention deficit/hyperactivity disorder

Sanchez-Carpintero R, Albesa SA, Crespo N, Villoslada P, Narbona J.
Pediatric Neurology Unit, Department of Paediatrics, University Hospital, University of Navarra, 31080 Pamplona, Spain.

Magazine: Journal of Neurology

Date: Jul 1, 2009

Pediatría [SP]

Attention deficit/hyperactivity disorder (ADHD) is often present in patients with post-streptococcal neuropsychiatric disorders such as Sydenham's chorea and PANDAS, in which anti-basal ganglia antibodies (ABGA) have been frequently found. Our study investigates the hypothesis that pharyngeal group A beta-hemolytic streptococcus (GABHS) infections and serum ABGA are more frequent in children with ADHD non-comorbid (nc-ADHD) with obsessive-compulsive disorder or tics than in controls.

We compared 22 children with nc-ADHD (DSM-IV-TR) and 22 healthy controls matched by age, gender and season of sample collection, for the frequency of recent GABHS infection and the presence of ABGA. Eleven out of 22 children (51%) with nc-ADHD showed evidence of GABHS infection compared to three out of 22 (14%) controls (P = 0.007). We found positive ABGA in one ADHD subject (4%) and in one control (4%).

This preliminary study indicates that frequency of ABGA in children with nc-ADHD does not differ from that in matched controls, despite the fact that our ADHD patients had had more recent GABHS infections than the controls. This suggests that ABGA do not have a role in the pathogenesis of nc-ADHD.

CITATION  J Neurol. 2009 Jul;256(7):1103-8



The Clínica is the greater private hospital with technological equipment of Spain, all in a single center.

Imagen de un PET, tecnología de vanguardia en la Clínica Universidad de Navarra


The professionals of the Clínica perform continuous research and training, always to the benefit of the patient.

Imagen profesionales de la Clínica Universidad de Navarra


Learn why we are different from other healthcare centers. Quality, speed, comfort and results.

Imagen del edificio de la Clínica Universidad de Navarra