0000000000718514

AUTHOR

Michèl A.a.p. Willemsen

showing 2 related works from this author

Benign nocturnal alternating hemiplegia of childhood

2018

Objective: To describe the clinical spectrum of benign nocturnal alternating hemiplegia of childhood (BNAHC) including long-term follow-up data of previously published cases and to propose an underlying genetic cause of this disorder. Methods: We studied the medical data of two novel patients, reviewed the literature on BNAHC, and gathered information of the most recent follow-up of published cases regarding the course of episodes, further development, attempted drugs, ancillary investigations, and sequelae. Results: All patients, i.e. two novel cases and twelve patients identified in the literature (13 boys, 1 girl, age at onset four months to three years), experienced episodes of hemipleg…

0301 basic medicineMaleExome sequencingPediatricsmedicine.medical_specialtyHeterozygoteHemiplegiaNerve Tissue ProteinsPATIENTSensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]03 medical and health sciences0302 clinical medicinePRRT2 MUTATIONSmedicineHumansIctalPAROXYSMAL KINESIGENIC DYSKINESIAFamily historyPRRT2 geneExome sequencingCryingbusiness.industryAlternating hemiplegia of childhoodInfantMembrane ProteinsGeneral MedicineParoxysmal dyskinesiamedicine.diseaseDisorders of movement Donders Center for Medical Neuroscience [Radboudumc 3]GENESleep deprivation030104 developmental biologyPhenotypeTreatment OutcomeSYNAPTIC-TRANSMISSIONMigraineMIGRAINEChild PreschoolPediatrics Perinatology and Child HealthDisease ProgressionNeurology (clinical)medicine.symptombusinessINFANTILE CONVULSIONS030217 neurology & neurosurgeryGene DeletionBenign nocturnal alternating hemiplegia of childhoodEuropean Journal of Paediatric Neurology
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Genome-wide variant calling in reanalysis of exome sequencing data uncovered a pathogenic TUBB3 variant.

2021

Almost half of all individuals affected by intellectual disability (ID) remain undiagnosed. In the Solve-RD project, exome sequencing (ES) datasets from unresolved individuals with (syndromic) ID (n = 1,472 probands) are systematically reanalyzed, starting from raw sequencing files, followed by genome-wide variant calling and new data interpretation. This strategy led to the identification of a disease-causing de novo missense variant in TUBB3 in a girl with severe developmental delay, secondary microcephaly, brain imaging abnormalities, high hypermetropia, strabismus and short stature. Interestingly, the TUBB3 variant could only be identified through reanalysis of ES data using a genome-wi…

ProbandExome sequencingAdolescentDevelopmental Disabilitieslnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4]Mutation MissenseComputational biologyBiologyGenomeExonAll institutes and research themes of the Radboud University Medical CenterTubulinIntellectual DisabilitySolve-RDExome SequencingGeneticsCoding regionMissense mutationHumansTUBB3GeneGenetics (clinical)Exome sequencingSequence (medicine)Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]ERN ITHACABrainMetabolic Disorders Radboud Institute for Molecular Life Sciences [Radboudumc 6]General MedicineGenome-wide variant callingStrabismusFaceMicrocephalyFemaleEuropean journal of medical genetics
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