2024
Case report: Novel variants cause developmental and epileptic encephalopathy in three unrelated families from Mali
Bamba S, Sidibé L, Diallo S, Cissé L, Dembélé K, Yalcouyé A, Ji W, Dembélé M, Diarra S, Maiga A, Traoré O, Diallo S, Mefoung S, Touré A, Koné A, Jeffries L, Guinto C, Mis E, Fischbeck K, Khokha M, Lakhani S, Landouré G. Case report: Novel variants cause developmental and epileptic encephalopathy in three unrelated families from Mali. Frontiers In Genetics 2024, 15: 1412442. DOI: 10.3389/fgene.2024.1412442.Peer-Reviewed Original ResearchWhole-exome sequencingGenetic basisIdentified rare variantsIn silico prediction analysisCompound heterozygous variantsPutative variantsIn silico toolsACMG criteriaExome sequencingProtein structureNovel variantsEpileptic encephalopathyAssess pathogenicityHeterozygous variantsRare variantsHomozygous variantSub-Saharan AfricaDisease mechanismsAssociated with earlier onsetRefractory to antiepileptic medicationsResistant to treatmentGroup of neurological disordersMalian familyEarly-onset seizuresPotential clinical implications
2021
Expansion of NEUROD2 phenotypes to include developmental delay without seizures
Mis EK, Sega AG, Signer RH, Cartwright T, Ji W, Martinez‐Agosto J, Nelson SF, Palmer CGS, Lee H, Mitzelfelt T, Konstantino M, Network U, Jeffries L, Khokha MK, Marco E, Martin MG, Lakhani SA. Expansion of NEUROD2 phenotypes to include developmental delay without seizures. American Journal Of Medical Genetics Part A 2021, 185: 1076-1080. PMID: 33438828, PMCID: PMC8212414, DOI: 10.1002/ajmg.a.62064.Peer-Reviewed Original ResearchConceptsDevelopmental delayEarly-onset seizuresDe novo heterozygous variantsNovo heterozygous variantsDifferentiation factor 2Xenopus laevis tadpolesHeterozygous variantsSeizuresNeuronal differentiationParental studiesFunctional testingMissense variantsPatient variantsFunctional evidenceFactor 2Vivo assaysLaevis tadpolesVariant pathogenicityFunction effectsAdolescentsVariants
2020
DYNC1H1‐related disorders: A description of four new unrelated patients and a comprehensive review of previously reported variants
Amabile S, Jeffries L, McGrath JM, Ji W, Spencer‐Manzon M, Zhang H, Lakhani SA. DYNC1H1‐related disorders: A description of four new unrelated patients and a comprehensive review of previously reported variants. American Journal Of Medical Genetics Part A 2020, 182: 2049-2057. PMID: 32656949, DOI: 10.1002/ajmg.a.61729.Peer-Reviewed Original ResearchConceptsSpinal muscular atrophyIntellectual disabilityUnrelated patientsSingle-center experienceNew unrelated patientsCenter experienceDYNC1H1 geneCNS disordersCombined disordersCortical developmentDisease-causing variantsVariable syndromeNeuromuscular diseaseNeuromuscular phenotypePatientsMuscular atrophyHeterozygous variantsDYNC1H1Medical literatureCharcot-MarieDisordersType 20Novel variantsPhenotypeReportFamilial Dilated Cardiomyopathy Associated With a Novel Combination of Compound Heterozygous TNNC1 Variants
Landim-Vieira M, Johnston JR, Ji W, Mis EK, Tijerino J, Spencer-Manzon M, Jeffries L, Hall EK, Panisello-Manterola D, Khokha MK, Deniz E, Chase PB, Lakhani SA, Pinto JR. Familial Dilated Cardiomyopathy Associated With a Novel Combination of Compound Heterozygous TNNC1 Variants. Frontiers In Physiology 2020, 10: 1612. PMID: 32038292, PMCID: PMC6990120, DOI: 10.3389/fphys.2019.01612.Peer-Reviewed Original ResearchCardiac muscle preparationsIsometric forcePatient variantsEarly-onset DCMDilated Cardiomyopathy AssociatedCompound heterozygous variantsSteady-state isometric forceCardiomyopathy AssociatedContractile functionMuscle preparationsCardiomyopathy phenotypeHeterozygous variantsCardiac phenotypeMyofilament CaSarcomeric genesFurther studies
2019
Siblings with lethal primary pulmonary hypoplasia and compound heterozygous variants in the AARS2 gene: further delineation of the phenotypic spectrum
Kiraly-Borri C, Jevon G, Ji W, Jeffries L, Ricciardi JL, Konstantino M, Ackerman KG, Lakhani SA. Siblings with lethal primary pulmonary hypoplasia and compound heterozygous variants in the AARS2 gene: further delineation of the phenotypic spectrum. Molecular Case Studies 2019, 5: a003699. PMID: 30819764, PMCID: PMC6549552, DOI: 10.1101/mcs.a003699.Peer-Reviewed Original ResearchConceptsPrimary pulmonary hypoplasiaPulmonary hypoplasiaPhenotypic spectrumEvidence of cardiomyopathyPremature ovarian insufficiencyAbsence of cardiomyopathyCompound heterozygous variantsWhole-exome sequencingOvarian insufficiencyAARS2 geneCompound HeterozygousHeterozygous variantsCardiomyopathyNewborn siblingsCarrier statusFurther delineationHypoplasiaUnaffected siblingsMitochondrial cardiomyopathySiblingsFirst reportLeukoencephalopathy