Search results for " KCNQ"

showing 2 items of 2 documents

Esophageal atresia and Beckwith–Wiedemann syndrome in one of the naturally conceived discordant newborn twins: first report

2018

Key Clinical Message Recent studies report a high incidence of monozygotic twinning in Beckwith–Wiedemann syndrome. A phenotypical discordance in monozygotic twins is rare. Twinning and Beckwith–Wiedemann syndrome show higher incidence in children born after assisted reproductive techniques. We report on the first observation of esophageal atresia and Beckwith–Wiedemann syndrome in one of the naturally conceived discordant monozygotic twins.

0301 basic medicinePediatricsmedicine.medical_specialtycongenital hereditary and neonatal diseases and abnormalitiesbuccal swabAssisted reproductive techniquesBuccal swabBeckwith–Wiedemann syndromeCase ReportCase Reports030105 genetics & heredity03 medical and health sciencesmedicinebusiness.industryIncidence (epidemiology)Monozygotic TwinningGeneral MedicineKCNQ1OT1 genemedicine.disease030104 developmental biologyAtresiaAssisted reproductive techniques buccal swab hypomethylation KCNQ1OT1 gene phenotypical discordance.phenotypical discordanceKCNQ1OT1 genebusinesshypomethylation
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A novel KCNQ3 mutation in familial epilepsy with focal seizures and intellectual disability

2015

Mutations in the KCNQ2 gene encoding for voltage-gated potassium channel subunits have been found in patients affected with early onset epilepsies with wide phenotypic heterogeneity, ranging from benign familial neonatal seizures (BFNS) to epileptic encephalopathy with cognitive impairment, drug resistance, and characteristic electroencephalography (EEG) and neuroradiologic features. By contrast, only few KCNQ3 mutations have been rarely described, mostly in patients with typical BFNS. We report clinical, genetic, and functional data from a family in which early onset epilepsy and neurocognitive deficits segregated with a novel mutation in KCNQ3 (c.989G>T; p.R330L). Electrophysiological stu…

MaleGenotype-phenotype correlationmedicine.medical_specialtyNeurologyBenign familial neonatal seizuresMutantGenotype-phenotype correlationsmedicine.disease_causeMutagenesiKCNQ3 Potassium ChannelEpilepsyKCNQBenign Familial Neonatal Seizures KCNQ cognitive impairment voltage-gated potassium channels epilepsy mutagenesis genotype-phenotype correlationsSeizuresSettore M-PSI/08 - Psicologia ClinicaIntellectual DisabilityIntellectual disabilitymedicineHumansKCNQ2 Potassium ChannelVoltage-gated potassium channelBenign familial neonatal seizuresGenetic Predisposition to DiseaseGenetic TestingChildGenetic testingGeneticsMutationEpilepsymedicine.diagnostic_testGenetic heterogeneitybusiness.industryMedicine (all)Benign familial neonatal seizures; Cognitive impairment; Epilepsy; Genotype-phenotype correlations; KCNQ; Mutagenesis; Voltage-gated potassium channels; Child; Female; Genetic Testing; Humans; Intellectual Disability; KCNQ2 Potassium Channel; KCNQ3 Potassium Channel; Male; Mutation; Pedigree; Seizures; Genetic Predisposition to Disease; Neurology (clinical); Neurology; Medicine (all)Benign familial neonatal seizuremedicine.diseaseSeizureSettore MED/39 - Neuropsichiatria InfantilePedigreeCognitive impairmentNeurologyMutagenesisMutationFemaleNeurology (clinical)businessVoltage-gated potassium channelsHuman
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