2022
Detecting regions of homozygosity improves the diagnosis of pathogenic variants and uniparental disomy in pediatric patients
Wen J, Chai H, Grommisch B, DiAdamo A, Dykas D, Ma D, Popa A, Zhao C, Spencer‐Manzon M, Jiang Y, McGrath J, Li P, Bale A, Zhang H. Detecting regions of homozygosity improves the diagnosis of pathogenic variants and uniparental disomy in pediatric patients. American Journal Of Medical Genetics Part A 2022, 188: 1728-1738. PMID: 35199448, DOI: 10.1002/ajmg.a.62693.Peer-Reviewed Original ResearchMeSH KeywordsChildConsanguinityExome SequencingHomozygoteHumansPolymorphism, Single NucleotidePrader-Willi SyndromeUniparental DisomyConceptsPediatric patientsWhole-exome sequencingCase seriesAR diseasesPathogenic variantsLarge consecutive case seriesConsecutive case seriesLarge case seriesUniparental disomyLikely pathogenic variantsRegions of homozygosityChromosomal microarray analysisAutosomal recessive diseasePrader-Willi syndromeDiagnostic findingsDiagnostic yieldPatientsPredictive valueGenetic testingHomozygous variantDiseaseExome sequencingRecessive diseaseGenetic counselingStrongest predictor
2017
Looking beyond the exome: a phenotype-first approach to molecular diagnostic resolution in rare and undiagnosed diseases
Pena LDM, Jiang YH, Schoch K, Spillmann RC, Walley N, Stong N, Rapisardo Horn S, Sullivan JA, McConkie-Rosell A, Kansagra S, Smith EC, El-Dairi M, Bellet J, Keels MA, Jasien J, Kranz PG, Noel R, Nagaraj SK, Lark RK, Wechsler DSG, del Gaudio D, Leung ML, Hendon LG, Parker CC, Jones KL, Goldstein D, Shashi V. Looking beyond the exome: a phenotype-first approach to molecular diagnostic resolution in rare and undiagnosed diseases. Genetics In Medicine 2017, 20: 464-469. PMID: 28914269, PMCID: PMC5851806, DOI: 10.1038/gim.2017.128.Peer-Reviewed Original ResearchConceptsWhole-exome sequencingMagnetic resonance image changesPathogenic variantsSanger sequencingPhenotype-first approachFurther diagnostic testingNew clinical findingsInfantile neuroaxonal dystrophyHeterozygous pathogenic variantsInfantile systemic hyalinosisSingle-gene testingClinical suspicionClinical findingsConclusionThese casesCerebellar atrophyWhite matter leukoencephalopathyNeuroaxonal dystrophyProgressive ataxiaMolecular testingSystemic hyalinosisNGS testingNovel homozygous deletionUndiagnosed diseaseClinical diagnosisDiagnostic testingNeonatal nonepileptic myoclonus is a prominent clinical feature of KCNQ2 gain‐of‐function variants R201C and R201H
Mulkey SB, Ben‐Zeev B, Nicolai J, Carroll JL, Grønborg S, Jiang Y, Joshi N, Kelly M, Koolen DA, Mikati MA, Park K, Pearl PL, Scheffer IE, Spillmann RC, Taglialatela M, Vieker S, Weckhuysen S, Cooper EC, Cilio MR. Neonatal nonepileptic myoclonus is a prominent clinical feature of KCNQ2 gain‐of‐function variants R201C and R201H. Epilepsia 2017, 58: 436-445. PMID: 28139826, PMCID: PMC5339037, DOI: 10.1111/epi.13676.Peer-Reviewed Original ResearchConceptsNonepileptic myoclonusClinical presentationFunction variantsMultifocal epileptiform dischargesProminent clinical featureDistinct clinical presentationsProfound developmental delayBurst-suppression patternInstitutional review boardNeonatal encephalopathyClinical featuresEpileptic spasmsNeonatal periodNeonatal seizuresRespiratory dysfunctionPatient RegistryMedical recordsNeonatal presentationElectrophysiologic propertiesEpileptiform dischargesParoxysmal movementsTherapeutic approachesPatientsBrain volumeMyoclonusGenetic Variants Identified from Epilepsy of Unknown Etiology in Chinese Children by Targeted Exome Sequencing
Wang Y, Du X, Bin R, Yu S, Xia Z, Zheng G, Zhong J, Zhang Y, Jiang YH, Wang Y. Genetic Variants Identified from Epilepsy of Unknown Etiology in Chinese Children by Targeted Exome Sequencing. Scientific Reports 2017, 7: 40319. PMID: 28074849, PMCID: PMC5225856, DOI: 10.1038/srep40319.Peer-Reviewed Original ResearchMeSH KeywordsBase SequenceChildEpilepsyExome SequencingFemaleGenetic Predisposition to DiseaseGenetic VariationHumansInfantMaleMutationPedigreePolymorphism, Single NucleotideReproducibility of ResultsConceptsNGS panelCaucasian childrenEtiology of epilepsyLikely pathogenic variantsTargeted exome sequencingGenetic variantsSingle nucleotide variantsUnknown etiologyEpilepsy patientsSpecific treatmentEpilepsyEpilepsy disordersPathogenic variantsPathologic variantsGenetic susceptibilityEpilepsy genesExome sequencingEtiologyGenetic factorsEpilepsy familiesChinese childrenCandidate genesClinicNovel candidate genesChildren
2014
Genetic diagnosis of autism spectrum disorders: The opportunity and challenge in the genomics era
Jiang YH, Wang Y, Xiu X, Choy KW, Pursley AN, Cheung SW. Genetic diagnosis of autism spectrum disorders: The opportunity and challenge in the genomics era. Critical Reviews In Clinical Laboratory Sciences 2014, 51: 249-262. PMID: 24878448, PMCID: PMC5937018, DOI: 10.3109/10408363.2014.910747.Peer-Reviewed Original ResearchConceptsSingle nucleotide variantsCopy number variantsGenetics of ASDPenetrant copy number variantsNumber variantsGenome-wide copy number variantsGenetic etiologySyndromic autism spectrum disordersGenomic eraSingle-gene testsSequence analysisWhole-exome sequencingGenetic evaluationNucleotide variantsPleiotropic effectsGenetic variantsClinical genetic evaluationMultiple gene panelsExome sequencingGenetic causeIncomplete penetranceNumber analysisMolecular diagnostic assaysVariable expressivityGene mutations