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Platelet monoamine oxidase activity in children with attention-deficit/hyperactivity disorder

Nedić, Gordana; Pivac, Nela; Kocijan-Hercigonja, Dubravka; Jovančević, Milivoj; Dodig-Čurković, Katarina; Muck-Šeler, Dorotea (2010) Platelet monoamine oxidase activity in children with attention-deficit/hyperactivity disorder. Psychiatry Research, 175 (3). pp. 252-255. ISSN 0165-1781

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Abstract

Attention-deficit hyperactivity disorder (ADHD) is highly heritable developmental disorder characterized by symptoms of impulsivity, hyperactivity and/or inattention, and associated with structural and biochemical abnormalities in cortical and limbic structures innervated by dopamine, noradrenalin and serotonin. The enzyme, monoamine oxidase, type B (MAO-B), is expressed in platelets, and metabolizes endogenous amines. Its activity has been proposed to represent a peripheral marker of the various traits and psychopathologies. This study evaluated platelet MAO activity with a spectrofluorimetric method in 72 boys and 12 girls with predominantly hyperactive, predominantly inattentive, and combined subtype of ADHD (DSM-IV criteria), and in 64 control children. The results showed significantly lower platelet MAO activity in children with hyperactive, inattentive, and combined subtype of ADHD than in control children. There was no significant association between platelet MAO activity and gender or age. The limitation of the study was in the small sample of girls with ADHD (N=12), and in the determination of only one peripheral marker. In line with the hypotheses of the lower platelet MAO activity in different psychopathologies, children with different subtypes of ADHD had significantly lower platelet MAO-B activity than control children.

Item Type: Article
Uncontrolled Keywords: attention-deficit/hyperactivity disorder; children; hyperactive; inattentive; and combined subtype of ADHD; platelet monoamine oxidase
Subjects: BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
Divisions: Division of Molecular Medicine
Projects:
Project titleProject leaderProject codeProject type
Molekularna podloga i liječenje psihijatrijskih i stresom izazvanih poremećaja-Nela Pivac098-0982522-2455MZOS
Farmakogenomika i proteomika serotoninskog i kateholaminskog sustava-Dorotea Muck-Šeler098-0982522-2457MZOS
Depositing User: Gordana Nedić Erjavec
Date Deposited: 13 Nov 2018 15:00
Last Modified: 13 Nov 2018 15:00
URI: http://fulir.irb.hr/id/eprint/4279
DOI: 10.1016/j.psychres.2009.08.013

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