Browsing by Author "Cartaxo, Teresa"
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- Folic acid, vitamin B12, and psychotic symptoms among young psychiatric inpatientsPublication . Pedro dos Reis, Filipa; Duarte, Luísa; Cartaxo, Teresa; Santos, VítorIntroduction: Folic acid and/or vitamin B12 deficiency are known to be associated with neuropsychiatric disorders. However, the association between serum levels of these molecules and psychotic symptoms is not established. The aim of this study was to investigate the association between folic acid and vitamin B12 serum levels and the presence of psychotic symptoms among child and young adult psychiatric inpatients. Material and Methods: This was a retrospective cohort study of 165 patients under 25 years of age admitted due to psychiatric disorders between 2005 and 2018 and with folic acid and vitamin B12 serum levels assessed during hospitalization. Two groups of patients were defined according to presence or absence of psychotic symptoms. Rehospitalization was also assessed. Results: Folic acid serum levels were significantly lower (p=0.01) in children and young adults hospitalized for psychiatric disorders with psychotic symptoms compared to patients of the same age with acute psychiatric illness without psychotic symptoms. A similar non-significant trend was found for vitamin B12. Rehospitalization rates were also higher in the first group. Conclusion: Results from this study suggest that low folic acid serum levels are associated with psychotic symptoms regardless of the baseline diagnosis.
- Impacto do Confinamento em Crianças e AdolescentesPublication . Pedro dos Reis, Filipa; Amaro, Rita; Martins Silva, Filipa; Vaz Pinto, Sofia; Barroca, Inês; Sá, Teresa; Ferreira Carvalho, Rui; Cartaxo, Teresa; Boavida, José
- Pica and attention deficit hyperactivity disorder: is there a link?Publication . Cardoso, Daniela; Duarte, Luísa; Fonseca-Pinto, Vanessa; Cartaxo, TeresaIntroduction: Pica is the persistent ingestion of non-nutritive substances. It is common during childhood and may be related to nutritional deficits, intellectual disability, stress, and psychosis. However, no causative biological condition is identified in most cases and there is limited evidence to support pharmacological intervention. As several authors describe pica as an impulse control disorder and impulsive symptoms are a core aspect of the diagnostic criteria of attention deficit hyperactivity disorder (ADHD), this study reviews literature data on pica, ADHD, and treatment response during childhood and adolescence and adds two case reports to this body of evidence. Methods: Systematic literature review using the key terms “pica”, “attention deficit”, “hyperactivity”, “child”, and “adolescent”. A retrospective analysis of clinical data of two patients with pica and ADHD followed at the Child and Adolescent Psychiatry Department of Hospital Pediátrico was also conducted. Results: As far as the authors are aware, only three cases are currently reported in the literature describing comorbid pica and ADHD in children. Of these, two reported complete pica symptom remission after methylphenidate treatment. Two other cases of children with pica and ADHD observed at the Child and Adolescent Psychiatry Department of our institution were reported in this study, one of which had complete symptom remission after psychostimulant treatment optimization. Discussion: The suggested association between pica and ADHD may have underlying etiology in poor impulse control and dopaminergic system dysfunctions. Therefore, a pharmacological approach capable of improving dopaminergic functioning may be an alternative treatment for pica. Psychostimulants may improve pica by eliciting an increase in brain dopamine levels and a decrease in impulsivity.