0000000000001188

AUTHOR

Bernard Zabel

showing 3 related works from this author

The Wilms' tumor suppressor gene (wt1) product regulates Dax-1 gene expression during gonadal differentiation.

1999

Gonadal differentiation is dependent upon a molecular cascade responsible for ovarian or testicular development from the bipotential gonadal ridge. Genetic analysis has implicated a number of gene products essential for this process, which include Sry, WT1, SF-1, and DAX-1. We have sought to better define the role of WT1 in this process by identifying downstream targets of WT1 during normal gonadal development. We have noticed that in the developing murine gonadal ridge, wt1 expression precedes expression of Dax-1, a nuclear receptor gene. We document here that the spatial distribution profiles of both proteins in the developing gonad overlap. We also demonstrate that WT1 can activate the D…

Transcriptional Activationcongenital hereditary and neonatal diseases and abnormalitiesGenes Wilms TumorReceptors Retinoic AcidTATA boxMolecular Sequence DataMutagenesis (molecular biology technique)Biologyurologic and male genital diseasesResponse ElementsTransactivationMiceGene expressionAnimalsHumansGonadsPromoter Regions GeneticWT1 ProteinsMolecular BiologyGeneCell Growth and DevelopmentCell Line TransformedGonadal ridgeBase Sequenceurogenital systemDAX-1 Orphan Nuclear ReceptorfungiGene Expression Regulation DevelopmentalCell Biologyfemale genital diseases and pregnancy complicationsCell biologyDNA-Binding ProteinsRepressor ProteinsTestis determining factorNuclear receptorCOS CellsCancer researchTranscription FactorsMolecular and cellular biology
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PRENATAL IDENTIFICATION OF A HETEROZYGOUS STATUS IN TWO FETUSES AT RISK FOR GLUCOSE–GALACTOSE MALABSORPTION

1996

Glucose-galactose malabsorption (GGM) is an autosomal recessive disorder which presents with severe osmotic diarrhoea shortly after birth. Two proband siblings with GGM were previously demonstrated to contain a missense mutation (D28N) in the Na + -dependent glucose/galactose cotransporter (SGLTI) that accounts for the defect in sugar absorption. Prenatal screening for GGM was performed in two subsequent pregnancies in this large consanguineous family. The first exon of the SGLTI gene was PCR-amplified from genomic DNA and screened for the presence of the D28N mutation by EcoRV restriction digestion. The proband's sibling was heterozygous and a cousin was not a carrier of the D28N mutation.…

Probandmedicine.medical_specialtyFetusMalabsorptionmedicine.diagnostic_testObstetrics and GynecologyBiologymedicine.diseaseExonEndocrinologyGlucose-galactose malabsorptionInternal medicinemedicineAmniocentesisMissense mutationAlleleGenetics (clinical)Prenatal Diagnosis
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Wolcott-Rallison Syndrome

2004

Wolcott-Rallison syndrome (WRS) is a rare autosomal-recessive disorder characterized by the association of permanent neonatal or early-infancy insulin-dependent diabetes, multiple epiphyseal dysplasia and growth retardation, and other variable multisystemic clinical manifestations. Based on genetic studies of two inbred families, we previously identified the gene responsible for this disorder as EIF2AK3, the pancreatic eukaryotic initiation factor 2α (eIF2α) kinase. Here, we have studied 12 families with WRS, totalling 18 cases. With the exception of one case, all patients carried EIF2AK3 mutations resulting in truncated or missense versions of the protein. Exclusion of EIF2AK3 mutations in…

GeneticsMutationGenetic heterogeneityEndocrinology Diabetes and MetabolismDwarfismBiologymedicine.diseasemedicine.disease_causeMultiple epiphyseal dysplasiaInternal MedicinemedicineMissense mutationEIF2AK3Kinase activityWolcott–Rallison syndromeDiabetes
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