Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 10 de 10
Filter
1.
Arq. neuropsiquiatr ; 64(3b): 711-717, set. 2006. ilus, graf, tab
Article in English, Portuguese | LILACS | ID: lil-437171

ABSTRACT

PURPOSE: To report the clinical and neuroimaging, central nervous system (CNS) findings of patients with Fabry disease (FD) during 24 months of enzyme replacement therapy (ERT) with agalsidase-alpha. METHOD: Eight patients were included. Six completed 24 months of ERT. Clinical and magnetic resonance imaging (MRI) data were obtained at 0, 12 and 24 months of ERT. White matter lesions (WML) were evaluated as well as their relation to age, symptoms and neurological examination (CNS score). RESULTS: MRI was stable in 3 patients. WML and CNS score worsened in one patient, fluctuated in another, and improved in the sixth patient. In the whole series, there were 15 WML at baseline, and 19 at the 24th month. In two years, 4 lesions disappeared, whereas 8 appeared. CONCLUSION: A widespread pattern of silent WML in FD was seen. In two years, some WML appeared, and some disappeared. If these phenomena were related to the natural history, remains to be demonstrated.


OBJETIVO: Relatar os achados neurológicos e de imagem do sistema nervoso central (SNC), observados durante 24 meses de tratamento de reposição enzimática (ERT) com agalsidase-alfa, em pacientes com a doença de Fabry (FD). MÉTODO: 8 pacientes foram incluídos; 6 completaram 24 meses de ERT. Os dados foram obtidos aos 0, 12 e 24 meses de ERT. Lesões de substância branca (WML) foram avaliadas assim como sua relação com a idade e o exame neurológico (escore SNC). RESULTADOS: Os achados de ressonância nuclear magnética foram estáveis em 3 pacientes. As WML e o escore SNC pioraram em um caso; flutuaram em um outro caso; e melhoraram no sexto paciente. No todo, havia 15 WML antes da ERT e 19 WML depois de 24 meses de ERT. Em dois anos, 4 lesões desapareceram e 8 novas surgiram. CONCLUSÕES: Viu-se um padrão difuso de WML assintomáticas, na FD. Em dois anos, algumas WML surgiram, enquanto outras desapareceram. Resta demonstrar se esses fenômenos fazem parte da história natural da doença.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Brain/pathology , Fabry Disease/drug therapy , alpha-Galactosidase/administration & dosage , Brain/enzymology , Follow-Up Studies , Fabry Disease/pathology , Magnetic Resonance Imaging , Neurologic Examination , Treatment Outcome
2.
Arq. neuropsiquiatr ; 58(3A): 597-606, set. 2000. tab, ilus
Article in English | LILACS | ID: lil-269604

ABSTRACT

The neuronal ceroid lipofuscinoses (NCL) are a group of inherited progressive neurodegenerative disorders with presentation from infancy to adulthood. Three main childhood forms can be established on the basis of age of onset, clinical course, and ultrastructural morphology: infantile (INCL), late infantile (LINCL), and juvenile (JNCL). Several variant subtypes have been described. Genetic and biochemical analysis are helping to better understand, diagnose and classify these disorders. We report on clinical, neurophysiological, neuroradiological, and morphological data from 17 patients with different forms (infantile, late infantile, and juvenile ) of neuronal ceroid lipofuscinoses (NCL) evaluated at Hospital de Clínicas de Porto Alegre, Southern Brazil, during 6 years (1992-1997). Seven cases were infantile; 5 were late infantile; and 5 were juvenile NCL. Gender ratio was male:female, 11:6. Age at presentation varied from 2-24 months for INCL; 2,5 to 5 years for LINCL ; and 4-10 years for the JNCL cases. Seizures (6 patients) and psychomotor retardation (1 patient) were the initial symptoms in the INCL group. All the patients in the group of LINCL had the usual findings. JNCL patients manifested different initial symptoms, although tending to follow a similar clinical picture within familial cases. Epidemiological data on the prevalence of NCLs in Brazil are not available, we expect this series of cases to contribute to further research in our population


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Neuronal Ceroid-Lipofuscinoses/epidemiology , Age of Onset , Brazil/epidemiology , Electrophysiology , Neuronal Ceroid-Lipofuscinoses/classification , Neuronal Ceroid-Lipofuscinoses/genetics , Neuronal Ceroid-Lipofuscinoses/pathology
3.
Arq. neuropsiquiatr ; 57(1): 1-5, mar. 1999. ilus
Article in English | LILACS | ID: lil-231868

ABSTRACT

Friedreich ataxia (FRDA), the most commom autosomal recessive ataxia, is caused in 94 per cent of cases by homozygous expansions of an unstable GAA repeat localised in intron 1 of the X25 gene. We have investigated this mutation in five Brazilian patients: four with typical FRDA findings and one patient with atypical manifestations, who was considered to have some other form of cerebellar ataxia with retained reflexes. The GAA expansion was detected in all these patients. The confirmation of FRDA diagnosis in the atypical case may be pointing out, as in other reports, that clinical spectrum of Friedreich's ataxia is broader than previously recognised and includes cases with intact tendon reflexes.


Subject(s)
Humans , Male , Female , Child , Adult , Friedreich Ataxia/diagnosis , Brazil , Friedreich Ataxia/genetics , Friedreich Ataxia/physiopathology , Polymerase Chain Reaction , Trinucleotide Repeat Expansion
5.
Arq. neuropsiquiatr ; 55(3B): 519-29, set. 1997. tab, ilus
Article in English | LILACS | ID: lil-205347

ABSTRACT

Spinocerebellar ataxia type 1 (SCA1), spinocerebellar ataxia type 2 (SCA2) and Machado-Joseph disease or spinocerebellar ataxia type 3 (MJD/SCA3) are three distinctive forms of autosomal dominant spinocerebellar ataxia (SCA) caused by expansions of an unstable CAG repeat localized in the coding region of the causative genes. Another related disease, dentatorubropallidoluysian atrophy (DRPLA) is also caused by an unstable triplet repeat and can present as SCA in late onset patients. We investigated the frequency of the SCA1, SCA2, MJD/SCA3 and DRPLA mutations in 328 Brazilian patients with SCA, belonging to 90 unrelated families with various patterns of inheritance and originating in different geographic regions of Brazil. We found mutations in 35 families (39 percent), 32 of them with a clear autosomal dominant inheritance. The frequency of the SCA1 mutation was 3 percent of all patients; and 6 percent in the dominantly inherited SCAs. We identified the SCA2 mutation in 6 percent of all families and in 9 percent of the families with autosomal dominant inheritance. The MJD/SCA3 mutation was detected in 30 percent of all patients; and in the 44 percent of the dominantly inherited cases. We found no DRPLA mutation. In addition, we observed variability in the frequency of the different mutations according to geographic origin of the patients, which is probably related to the distinct colonization of different parts of Brazil. These results suggest that SCA may be occasionally caused by the SCA1 and SCA2 mutations in the Brazilian population, and that the MJD/SCA3 mutation is the most common cause of dominantly inherited SCA in Brazil.


Subject(s)
Humans , Child , Adult , Middle Aged , Adolescent , Mutation/genetics , Spinocerebellar Degenerations/genetics , Brazil , Chromosome Aberrations/genetics , DNA Mutational Analysis , Genes, Dominant , Machado-Joseph Disease/genetics , Polymerase Chain Reaction , Trinucleotide Repeats
6.
J. pediatr. (Rio J.) ; 72(2): 63-70, mar.-abr. 1996. tab
Article in Portuguese | LILACS | ID: lil-193313

ABSTRACT

As manifestacöes de Erros Inatos do Metabolismo(EIM) de instalaçäo aguda säo extremamente inespecíficas, tornando o seu duagnóstico uma terefa de interpretaçäo laboratorial. Ao mesmo tempo, o diagnóstico precoce de vários destes EIM leva a medidas terapêuticas bastante satisfatórias, seguidas de evoluçöes clínicas favoráveis. Para facilitar a tarefa de pediatras e neonatologistas no diagnóstico e manejo imediato destes EIM de apresentaçäo aguda, é sugerido um fluxograma de condutas. Os passos sugeridos säo justificados e complementados por comentários colaterais, limitando-se às manifestaçöes mais graves e mais comuns destes distúrbios, como a acidose metabólica, a hiperamonemia e a hipoglicemia. Ao final, é sugerida a leitura de literatura específica dentro das "famílias"de diagnósticos específicos dos EIM.


Subject(s)
Humans , Child , Infant, Newborn , Metabolism, Inborn Errors , Diagnosis
7.
J. pediatr. (Rio J.) ; 71(5): 279-84, set.-out. 1995. ilus, tab
Article in Portuguese | LILACS | ID: lil-175993

ABSTRACT

Relata-se aqui o manejo terapêutico realizado em um paciente portador da Doença da Urina do Xarope de Bordo, com diagnóstico e encaminhamento tardios (2 a 5 meses). Uma vez que o paciente apresentava níveis extremamente elevados de leucina no plasma(1956 micromoles/L, para um normal de até 77), houve necessidade de se realizar uma glicoinsulinoterapia nos primeiros dias de tratamento, seguida posteriormente da dieta específica para esta doença (hipercalórica e restrita em aminoácidos de cadeia ramificada). Além de uma breve revisäo sobre o assunto, os autores enfatizam as grandes dificuldades de se realizar um diagnóstico precoce e de se obter fórmulas alimentares específicas para esta doença no Brasil.


Subject(s)
Amino Acid Metabolism, Inborn Errors
8.
J. pediatr. (Rio J.) ; 68(7/8): 239-42, jul.-ago. 1992.
Article in Portuguese | LILACS | ID: lil-119158

ABSTRACT

Este trabalho tem por objetivo relatar os primeiros resultados do programa de deteccao precoce de hipotireoidismo congenito realizado no periodo de janeiro de 1988 a junho de 1989 no Rio Grande do Sul. Dos 307.781 nascimentos ocorridos naquele periodo, 21.722 criancas com idade entre 7 e 90 dias foram testadas (5,7% da populacao). No estudo, uma amostra de sangue foi coletada em papel filtro para dosagem de T4 por RIE. Das 21722 criancas testadas no periodo, 42 tiveram resultados anormais (abaixo de 6 ng%) e foram encaminhadas para avaliacao complementar em um centro de referencia. Nas 30, nas quais a investigacao diagnostica pode ser completada, encontraram-se 8 casos com T4 serico baixo, o que correspondeu a uma frequencia de 1:2750 recem-nascidos testados. O T4 serico baixo ocorre em situacoes comuns: hipotireoidismo congenito e deficienciade TBG. O valor preditivo positivo do teste de triagem foi de 27%. Tanto a frequencia dos disturbios quanto o valor preditivo deste sao comparaveis com os encontrados na literatura .


Subject(s)
Humans , Infant, Newborn , Infant , Hypothyroidism/congenital , Triage , Blood Chemical Analysis , Brazil , Hypothyroidism/epidemiology , Hypothyroidism/prevention & control , Radioimmunoassay , Thyrotropin
9.
J. pediatr. (Rio J.) ; 68(5/6): 189-91, maio-jun. 1992.
Article in Portuguese | LILACS | ID: lil-119149

ABSTRACT

Este trabalho apresenta os primeiros resultados de um programa de deteccao para aminoacidopatias realizado na populacao de criancas nascidas entre 1987 e 1989 no Rio Grande do Sul. 28.576 criancas de 7 a 90 dias de vida foram triadas atraves de uma cromatografia em camada delgada. Destas, 33 criancas tiveram resultados anormais. Encontraram-se 7 casos de tirosinemia neonataltransitoria, 2 casos de fenilcetonuria classica, 1 caso de hiperfenilalaninemia transitoria e 5 casos com disturbios inespecificos transitorios. Estes resultados correspondem a uma frequencia de tirosinemia transitoria de 1:4082 recem-nascidos e de fenilcetonuria classica de 1:14.288. O valor preditivo positivo do teste foi de 54% .


Subject(s)
Infant, Newborn , Amino Acid Metabolism, Inborn Errors , Triage , Chromatography, Thin Layer , Phenylketonurias
10.
Arq. neuropsiquiatr ; 49(2): 211-4, jun. 1991. ilus
Article in English | LILACS | ID: lil-102778

ABSTRACT

A doença de Wilson é desordem autossômica recessiva do metabolismo do cobre, cujas manifestaçöes sistêmicas säo secundárias ao acúmulo de cobre nos tecidos, especialmente no fígado e no SNC. Neste, as lesöes estruturais mais comumente encontradas pela TC säo: dilataçäo ventricular, atrofia cortical, hiperdensidades dos núcleos da base e atrofia cerebelar e de tronco cerebral. Lesöes degenerativas da substância branca cerebral foram relatadas em estudo anátomo-patológicos realizados até os anos 60, mas quase nunca foram documentadas por TC em pacientes mais recentes. Neste artigo é descrito o caso de paciente com doença de Wilson, de rápida deterioraçäo,, no qual a TC mostrou hipodensidades assimétricas na substância branca subcortical


Subject(s)
Humans , Male , Adolescent , Hepatolenticular Degeneration , Tomography, X-Ray Computed , Cerebral Cortex
SELECTION OF CITATIONS
SEARCH DETAIL