UNLABELLED: The mucopolysaccharidoses (MPS) are a heterogeneous group of inborn errors of lysosomal glycosaminoglycan (GAG) metabolism. The importance of this group of disorders among the inborn errors of metabolism led us to report 19 cases. METHOD: We performed clinical, radiological, and biochemical evaluations of the suspected patients, which allowed us to establish a definite diagnosis in 19 cases. RESULTS: Not all patients showed increased GAG levels in urine; enzyme assays should be performed in all cases with strong clinical suspicion. The diagnosis was made on average at the age of 48 months, and the 19 MPS cases, after a full clinical, radiological, and biochemical study, were classified as follows: Hurler - MPS I (1 case); Hunter - MPS II (2 cases); Sanfilippo - MPS III (2 cases); Morquio - MPS IV (4 cases); Maroteaux-Lamy - MPS VI (9 cases); and Sly - MPS VII (1 case). DISCUSSION: The high relative frequency of Maroteaux-Lamy disease contrasts with most reports in the literature and could express a population variability.
UNLABELLED: The mucopolysaccharidoses (MPS) are a heterogeneous group of inborn errors of lysosomal glycosaminoglycan (GAG) metabolism. The importance of this group of disorders among the inborn errors of metabolism led us to report 19 cases. METHOD: We performed clinical, radiological, and biochemical evaluations of the suspected patients, which allowed us to establish a definite diagnosis in 19 cases. RESULTS: Not all patients showed increased GAG levels in urine; enzyme assays should be performed in all cases with strong clinical suspicion. The diagnosis was made on average at the age of 48 months, and the 19 MPS cases, after a full clinical, radiological, and biochemical study, were classified as follows: Hurler - MPS I (1 case); Hunter - MPS II (2 cases); Sanfilippo - MPS III (2 cases); Morquio - MPS IV (4 cases); Maroteaux-Lamy - MPS VI (9 cases); and Sly - MPS VII (1 case). DISCUSSION: The high relative frequency of Maroteaux-Lamy disease contrasts with most reports in the literature and could express a population variability.
Authors: Roberto Giugliani; Andressa Federhen; Maria Verônica Muñoz Rojas; Taiane Vieira; Osvaldo Artigalás; Louise Lapagesse Pinto; Ana Cecília Azevedo; Angelina Acosta; Carmen Bonfim; Charles Marques Lourenço; Chong Ae Kim; Dafne Horovitz; Denize Bonfim; Denise Norato; Diane Marinho; Durval Palhares; Emerson Santana Santos; Erlane Ribeiro; Eugênia Valadares; Fábio Guarany; Gisele Rosone de Lucca; Helena Pimentel; Isabel Neves de Souza; Jordão Correa; José Carlos Fraga; José Eduardo Goes; José Maria Cabral; José Simionato; Juan Llerena; Laura Jardim; Liane Giuliani; Luiz Carlos Santana da Silva; Mara L Santos; Maria Angela Moreira; Marcelo Kerstenetzky; Márcia Ribeiro; Nicole Ruas; Patricia Barrios; Paulo Aranda; Rachel Honjo; Raquel Boy; Ronaldo Costa; Carolina Souza; Flavio F Alcantara; Silvio Gilberto A Avilla; Simone Fagondes; Ana Maria Martins Journal: Genet Mol Biol Date: 2010-12-01 Impact factor: 1.771