Center for Research in Rare Diseases
Center for Research in Rare Diseases
Lopez-Laso E.,University of Cordoba, Spain |
Sanchez-Raya A.,University of Cordoba, Spain |
Moriana J.A.,University of Cordoba, Spain |
Martinez-Gual E.,Termes Foundation |
And 12 more authors.
Journal of Neurology | Year: 2011
Segawa disease is a rare dystonia due to autosomal dominant guanosine triphosphate cyclohydrolase I (adGTPCH) deficiency, affecting dopamine and serotonin biosynthesis. Recently, the clinical phenotype was expanded to include psychiatric manifestations, such as depression, anxiety, obsessive-compulsive disorder, and sleep disturbances. Although cognitive and neuropsychiatric symptoms may be attributable to dopamine deficiency in the prefrontal cortex and frontostriatal circuitry, intelligence is considered normal in Segawa disease. Our aim was to investigate neuropsychiatric symptoms and intelligence quotients (IQ) in a series of individuals with adGTPCH deficiency. The assessment included a structured clinical interview following the DSM-IV-TR's guidelines, Beck's Depression Inventory, the State-Trait Anxiety Inventory, the Maudsley Obsessive-Compulsive Questionnaire, the Barratt Impulsiveness Scale-11 (BIS-11), the Oviedo Sleep Questionnaire, the Pittsburgh Sleep Quality Index, and the Wechsler Adult Intelligence Scale-Third Edition. Equivalent tests were applied to pediatric patients as appropriate for their age group. Fourteen patients with adGTPCH deficiency were evaluated (seven adult and seven pediatric patients). Depression, anxiety, and obsessive-compulsive symptoms were not more common than expected in the general population. However, the seven adults showed impulsivity in the BIS-11; nine individuals had an IQ in the range of borderline intellectual functioning to mild mental retardation, and sleep disturbances were found in four individuals. We found no differences between these results and the motor impairment. In conclusion, our findings would suggest that cognitive impairment, and impulsivity in adults, may be associated with Segawa disease. © 2011 Springer-Verlag.
Delgadillo V.,Hospital Sant Joan Of Deu |
Del Mar O'Callaghan M.,Hospital Sant Joan Of Deu |
Del Mar O'Callaghan M.,Center for Research in Rare Diseases |
Artuch R.,Hospital Sant Joan Of Deu |
And 5 more authors.
Journal of Inherited Metabolic Disease | Year: 2011
Background Mucopolysaccharidosis type III (Sanfilippo syndrome) is a group of autosomal recessive disorders caused by a deficiency in one of the four enzymes involved in the lysosomal degradation of heparan sulfate. Genistein supplementation has been proposed as a potential therapy for the reduction of substrates in patients with these disorders. Objective The aim of this study was to assess the effectiveness and potential side effects of genistein supplementation in MPS III patients. Methods Open-label study, with 19 children (10 males and 9 females) enrolled with confirmed diagnosis of MPS III (age range 2.8-19 years). Patients were supplemented with genistein (5 mg kg ?1 day ?1) for 1 year. Clinical evaluation, hair morphology, urinary glycosaminoglycan analysis, study of nutritional parameters, and other routine biochemical tests were performed. Results We did not observe an improvement in the disability scale; after genistein treatment, in most patients there was an increased disability score or it remained unchanged. There was a relative decrease in the recurrence of infections and gastrointestinal symptoms, as well as improvement in skin texture and hair morphology. Glycosaminoglycan levels were above normal at all control points and showed great variability in their elimination. Conclusion Our results suggest that genistein supplementation at 5 mg kg ?1 day ?1 did not improve disability estimated by using a particular scale. © SSIEM and Springer 2011.