Enzyme replacement therapy for Mucopolysaccharidosis Type I among patients followed within the MPS Brazil Network



Título del documento: Enzyme replacement therapy for Mucopolysaccharidosis Type I among patients followed within the MPS Brazil Network
Revue: Genetics and molecular biology
Base de datos: PERIÓDICA
Número de sistema: 000371742
ISSN: 1415-4757
Autores: 1
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15
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10
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Instituciones: 1Hospital de Clinicas de Porto Alegre, Medical Genetics Service, Porto Alegre, Rio Grande do Sul. Brasil
2Hospital Infantil Joana de Gusmao, Medical Genetics Service, Florianopolis, Santa Catarina. Brasil
3Universidade de Sao Paulo, Instituto da Crianca, Sao Paulo. Brasil
4Universidade Estadual de Campinas, Department of Medical Genetics, Campinas, Sao Paulo. Brasil
5Universidade de Sao Paulo, Hospital das Clinicas de Ribeirao Preto, Ribeirao Preto, Sao Paulo. Brasil
6Fundacao Oswaldo Cruz, Instituto Nacional de Saude da Mulher, da Crianca e do Adolescente Fernandes Figueira, Rio de Janeiro. Brasil
7Hospital Infantil Albert Sabin, Medical Genetics Service, Fortaleza, Ceara. Brasil
8Hospital das Clinicas, Ambulatorio de Erros Inatos do Metabolismo, Belo Horizonte, Minas Gerais. Brasil
9Universidade Federal de Uberlandia, Hospital de Clinicas, Uberlandia, Minas Gerais. Brasil
10Universidade Federal do Para, Hospital Universitario Bettina Ferro de Souza, Belem, Para. Brasil
11Outpatient Genetics Clinic, Prefeitura de Parnamirim, Parnamirim, Rio Grande do Norte. Brasil
12Universidade Federal do Rio de Janeiro, Instituto de Puericultura e Pediatria Martagao Gesteira, Rio de Janeiro. Brasil
13Universidade Federal do Rio Grande do Sul, Department of Genetics, Porto Alegre, Rio Grande do Sul. Brasil
14Universidade Federal do Para, Laboratório de Erros Inatos do Metabolismo, Belem, Para. Brasil
15Hospital Municipal da Criança e Adolescente, Guarulhos, Sao Paulo. Brasil
Año:
Periodo: Mar
Volumen: 37
Número: 1
Paginación: 23-29
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés Mucopolysaccharidosis type I (MPS I) is a rare lysosomal disorder caused by deficiency of alpha-L-iduronidase. Few clinical trials have assessed the effect of enzyme replacement therapy (ERT) for this condition. We conducted an exploratory, open-label, non-randomized, multicenter cohort study of patients with MPS I. Data were collected from questionnaires completed by attending physicians at the time of diagnosis (T1; n = 34) and at a median time of 2.5 years later (T2; n = 24/34). The 24 patients for whom data were available at T2 were allocated into groups: A, no ERT (9 patients; median age at T1 = 36 months; 6 with severe phenotype); B, on ERT (15 patients; median age at T1 = 33 months; 4 with severe phenotype). For all variables in which there was no between-group difference at baseline, a delta of 20% was considered clinically relevant. The following clinically relevant differences were identified in group B in T2: lower rates of mortality and reported hospitalization for respiratory infection; lower frequency of hepatosplenomegaly; increased reported rates of obstructive sleep apnea syndrome and hearing loss; and stabilization of gibbus deformity. These changes could be due to the effect of ERT or of other therapies which have also been found more frequently in group B. Our findings suggest MPS I patients on ERT also receive a better overall care. ERT may have a positive effect on respiratory morbidity and overall mortality in patients with MPS I. Additional studies focusing on these outcomes and on other therapies should be performed
Disciplinas: Medicina,
Química
Palabras clave: Metabolismo y nutrición,
Terapéutica y rehabilitación,
Bioquímica,
Terapia de reemplazo enzimático,
Laronidasa,
Mucopolisacaridosis tipo I,
Alfa-L-iduronidasa
Keyword: Medicine,
Chemistry,
Metabolism and nutrition,
Therapeutics and rehabilitation,
Biochemistry,
Enzyme replacement therapy,
Laronidase,
Mucopolysaccharidosis type I,
Alpha-L-iduronidase
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