title: Obsessive compulsive disorder as early manifestation of B12 deficiency.
abstract: B12 acts as a cofactor in synthesis of neurotransmitters such as serotonin and dopamine, thus B12 deficiency affects mood, emotions and sleeping and can lead to psychiatric disorders. Psychiatric manifestations of B12 deficiency are varied. They seldom precede anemia. We want to present a case of B12 deficiency which was presented with obsessive compulsive disorder.
authors.affiliation: Department of Family Medicine, General Practitioner, Urmia University of Medical Sciences, Urmia, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Valizadeh
authors.forename: Nasim
authors.initials: N
authors.lastname: Valizadeh