0000000001120458

AUTHOR

Maria Hoeltzenbein

showing 2 related works from this author

Genotypic and phenotypic spectrum in tricho-rhino-phalangeal syndrome types I and III

2000

Tricho-rhino-phalangeal syndrome (TRPS) is characterized by craniofacial and skeletal abnormalities. Three subtypes have been described: TRPS I, caused by mutations in the TRPS1 gene on chromosome 8; TRPS II, a microdeletion syndrome affecting the TRPS1 and EXT1 genes; and TRPS III, a form with severe brachydactyly, due to short metacarpals, and severe short stature, but without exostoses. To investigate whether TRPS III is caused by TRPS1 mutations and to establish a genotype-phenotype correlation in TRPS, we performed extensive mutation analysis and evaluated the height and degree of brachydactyly in patients with TRPS I or TRPS III. We found 35 different mutations in 44 of 51 unrelated p…

AdultMaleanimal structuresAdolescentGenotypeDNA Mutational AnalysisMolecular Sequence DataLimb Deformities CongenitalBiologyOsteochondrodysplasiasPolymorphism Single NucleotideShort statureLanger–Giedion syndromeGeneticsmedicineHumansMissense mutationTricho–rhino–phalangeal syndromeGenetics(clinical)Amino Acid SequenceChildGenetics (clinical)GeneticsAnthropometryBase SequenceBrachydactylyInfantZinc FingersExonsSyndromeArticlesMiddle AgedMicrodeletion syndromemedicine.diseasePenetranceBody HeightPedigreeDNA-Binding ProteinsRadiographyPhenotypeChild PreschoolMutationTrichorhinophalangeal Syndrome Type IErythroid-Specific DNA-Binding FactorsFemalemedicine.symptomChromosomes Human Pair 8Transcription Factors
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Mutation analyses in 17 patients with deficiency in acid β-galactosidase: three novel point mutations and high correlation of mutation W273L with Mor…

2001

An inherited deficiency in beta-galactosidase can result in GM1 gangliosidosis, with several phenotypes of generalized or chronic psychomotor deterioration, as well as in Morquio disease type B, a characteristic mucopolysaccharidosis free of neurological symptoms. We performed mutation analyses in 17 juvenile and adult patients from various European regions with a deficiency in beta-galactosidase and skeletal abnormalities. Fifteen of these had the Morquio B phenotype and have remained neurologically healthy until now while the two others exhibited psychomotor retardation of juvenile onset. A two-base substitution (851-852TG--CT; W273L) was present in 14 of the 15 Morquio B cases. Even if o…

AdultMaleAdolescentMucopolysaccharidosisDNA Mutational AnalysisRestriction MappingMutation MissenseBiologyGeneticsmedicineHumansPoint MutationMissense mutationRNA MessengerChildGenetics (clinical)DNA PrimersGeneticsPsychomotor retardationReverse Transcriptase Polymerase Chain ReactionPoint mutationMucopolysaccharidosis IVHeterozygote advantageMiddle Agedbeta-Galactosidasemedicine.diseasePhenotypePedigreePhenotypeGLB1Child PreschoolMutation (genetic algorithm)Femalemedicine.symptomHuman Genetics
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