Secondary abnormalities of neurotransmitters in infants with neurological disorders
| Autor: | Mercedes Serrano, Verónica González, Mercedes Pineda, Belén Pérez-Dueñas, E. Fernández-Álvarez, Rafael Artuch, Jaime Campistol, Angeles Garcia-Cazorla, Aida Ormazabal |
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| Rok vydání: | 2007 |
| Předmět: |
Male
Physiology Neonatal onset Severity of Illness Index 5-Hydroxytryptophan chemistry.chemical_compound Epilepsy Cerebrospinal fluid Developmental Neuroscience Neuroimaging Severity of illness Medicine Humans Neurotransmitter business.industry Homovanillic acid Infant Newborn Brain Infant Electroencephalography Homovanillic Acid Hydroxyindoleacetic Acid medicine.disease Pterins Motor Skills Disorders Phenotype chemistry Pediatrics Perinatology and Child Health Etiology Female Neurology (clinical) Atrophy Nervous System Diseases business Neuroscience |
| Zdroj: | Developmental medicine and child neurology. 49(10) |
| ISSN: | 0012-1622 |
| Popis: | Neurotransmitters are essential in young children for differentiation and neuronal growth of the developing nervous system. We aimed to identify possible factors related to secondary neurotransmitter abnormalities in pediatric patients with neurological disorders. We analyzed cerebrospinal fluid (CSF) and biogenic amine metabolites in 56 infants (33 males, 23 females; mean age 5.8mo [SD 4.1mo] range 1d-1y) with neurological disorders whose aetiology was initially unknown. Patients were classified into three clinical phenotypes: epileptic encephalopathy, severe motor impairment, and non-specific manifestations. All patients showed normal results for screening of inborn errors of metabolism. We report clinical, neuroimaging, and follow-up data. Among the patients studied, 10 had low homovanillic acid (HVA) levels and in four patients, 5-hydroxyindoleacetic acid (5-HIAA) was also reduced. Patients with neonatal onset had significantly lower levels of HVA than a comparison group. HVA deficiency was also associated with severe motor impairment and the final diagnosis related to neurodegenerative disorders. 5-HIAA values tended to be decreased in patients with brain cortical atrophy. The possibility of treating patients with L-Dopa and 5-hydroxytryptophan, in order to improve their neurological function and maturation, may be considered. |
| Databáze: | OpenAIRE |
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