0000000001142765

AUTHOR

Kristin D. Kernohan

showing 2 related works from this author

PDXK mutations cause polyneuropathy responsive to pyridoxal 5′‐phosphate supplementation

2019

OBJECTIVE: To identify disease-causing variants in autosomal recessive axonal polyneuropathy with optic atrophy and provide targeted replacement therapy. METHODS: We performed genome-wide sequencing, homozygosity mapping, and segregation analysis for novel disease-causing gene discovery. We used circular dichroism to show secondary structure changes and isothermal titration calorimetry to investigate the impact of variants on adenosine triphosphate (ATP) binding. Pathogenicity was further supported by enzymatic assays and mass spectroscopy on recombinant protein, patient-derived fibroblasts, plasma, and erythrocytes. Response to supplementation was measured with clinical validated rating sc…

0301 basic medicineMale[SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/NeurobiologyLOCAL TRANSLATIONMedizinmedicine.disease_causeDISEASEchemistry.chemical_compound0302 clinical medicinepolineuropathyCinètica enzimàticaGene Regulatory NetworksPyridoxal phosphateChildPyridoxal KinaseAdenosine triphosphate (ATP)Research ArticlesAged 80 and overMutationGene Regulatory NetworkPLASMAAutosomal recessive axonal polyneuropathyDisease gene identificationPyridoxal kinase3. Good healthSettore MED/26 - NEUROLOGIANeuropaties perifèriquesTreatment OutcomePolyneuropathieNeurologyChild PreschoolPyridoxal PhosphateRELIABILITYVitamin B ComplexFemaleLife Sciences & BiomedicinePolyneuropathyHumanResearch ArticleAdultAdolescentPDXKClinical NeurologyCHARCOT-MARIE-TOOTHCHARCOT-MARIE-TOOTH CMT NEUROPATHY SCORE LOCAL TRANSLATION DISEASE RELIABILITY; MECHANISMS DISCOVERY FRAMEWORK KINASE PLASMAMECHANISMS03 medical and health sciencesPolyneuropathiesAtrophy[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN]KINASEmedicineHumansCMT NEUROPATHY SCOREPDXK mutationsPyridoxalDietary SupplementAgedPeripheral neuropathiesScience & Technology[SCCO.NEUR]Cognitive science/NeuroscienceEnzyme kineticsNeurosciencesFRAMEWORKmedicine.diseaseMolecular biology030104 developmental biologychemistryDISCOVERYDietary SupplementsMutationNeurosciences & NeurologyNeurology (clinical)Adenosine triphosphate030217 neurology & neurosurgeryAnnals of Neurology
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Functional correlation of genome-wide DNA methylation profiles in genetic neurodevelopmental disorders

2022

An expanding range of genetic syndromes are characterized by genome-wide disruptions in DNA methylation profiles referred to as episignatures. Episignatures are distinct, highly sensitive and specific biomarkers that have recently been applied in clinical diagnosis of genetic syndromes. Episignatures are contained within the broader disorder-specific genome-wide DNA methylation changes which can share significant overlap amongst different conditions. In this study we performed functional genomic assessment and comparison of disorder-specific and overlapping genome-wide DNA methylation changes related to 65 genetic syndromes with previously described episignatures. We demonstrate evidence of…

DNA methylationclinical diagnostics.SyndromeDNA methylation clinical diagnostics episignatures neurodevelopmental syndromesneurodevelopmental syndromesEpigenesis GeneticNeurodevelopmental DisordersGeneticsHumansCpG IslandsDNA IntergenicepisignaturesEpisignatureGenetics (clinical)clinical diagnostics
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