2014
Autosomal recessive spastic tetraplegia caused by AP4M1 and AP4B1 gene mutation: Expansion of the facial and neuroimaging features
Tüysüz B, Bilguvar K, Koçer N, Yalçınkaya C, Çağlayan O, Gül E, Şahin S, Çomu S, Günel M. Autosomal recessive spastic tetraplegia caused by AP4M1 and AP4B1 gene mutation: Expansion of the facial and neuroimaging features. American Journal Of Medical Genetics Part A 2014, 164: 1677-1685. PMID: 24700674, DOI: 10.1002/ajmg.a.36514.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsBrainChildDNA Mutational AnalysisDNA-Binding ProteinsFaciesFemaleGenes, RecessiveGenetic Association StudiesHomozygoteHumansMagnetic Resonance ImagingMaleMutationNeuroimagingPedigreePhenotypeQuadriplegiaRNA-Binding ProteinsSiblingsConceptsAdaptor protein complex 4Tetraplegic cerebral palsySevere intellectual disabilitySpastic tetraplegiaCerebral palsySpastic tetraplegic cerebral palsyIntellectual disabilityStereotypic laughterCranial imaging findingsWhite matter volumeWhole-exome sequencingNovel homozygous mutationAsymmetrical ventriculomegalyCranial MRIImaging findingsClinical findingsNeuroimaging featuresBrain abnormalitiesCommon findingCorpus callosumAutosomal recessive phenotypePairs of siblingsPatientsSimilar facial featuresMatter volume
2013
A new patient with Andermann syndrome: an underdiagnosed clinical genetics entity?
Degerliyurt A, Akgumus G, Caglar C, Bilguvar K, Caglayan A. A new patient with Andermann syndrome: an underdiagnosed clinical genetics entity? Genetic Counseling 2013, 24: 283-9. PMID: 24341143.Peer-Reviewed Original ResearchConceptsAndermann syndromeCorpus callosumCortical electrical activityAutosomal recessive disorderPeripheral neuropathyProgressive neuropathySevere neuropathyYear old Turkish boyNew patientsPsychiatric symptomsExtracellular ion concentrationsClinical attentionConsanguineous parentsImaging studiesNeuropathySyndromeThird decadeRecessive disorderElectrical activityMental retardationDysmorphic characteristicsAreflexiaTurkish boyAgenesisCallosum
2011
Homozygosity mapping and targeted genomic sequencing reveal the gene responsible for cerebellar hypoplasia and quadrupedal locomotion in a consanguineous kindred
Gulsuner S, Tekinay AB, Doerschner K, Boyaci H, Bilguvar K, Unal H, Ors A, Onat OE, Atalar E, Basak AN, Topaloglu H, Kansu T, Tan M, Tan U, Gunel M, Ozcelik T. Homozygosity mapping and targeted genomic sequencing reveal the gene responsible for cerebellar hypoplasia and quadrupedal locomotion in a consanguineous kindred. Genome Research 2011, 21: 1995-2003. PMID: 21885617, PMCID: PMC3227090, DOI: 10.1101/gr.126110.111.Peer-Reviewed Original ResearchMeSH KeywordsAdultCerebellumChromosomes, Human, Pair 17FemaleGaitGenetic Diseases, InbornGenetic LociHomozygoteHumansMagnetic Resonance ImagingMalePostureRadiographyTurkeyConceptsBeta-propeller domainPrivate missense mutationsLarge consanguineous familyThird geneBEACH domainTransmembrane proteinHomozygous regionsHomozygosity mappingGenomic sequencingWDR81Chromosome 17p13.1Missense mutationsQuadrupedal locomotionConsanguineous familyTargeted sequencingGenesSequencingRare phenotypeMorphological abnormalitiesBiological basisMutationsAffected individualsCell layerParticular atrophyFamilyRecessive LAMC3 mutations cause malformations of occipital cortical development
Barak T, Kwan KY, Louvi A, Demirbilek V, Saygı S, Tüysüz B, Choi M, Boyacı H, Doerschner K, Zhu Y, Kaymakçalan H, Yılmaz S, Bakırcıoğlu M, Çağlayan A, Öztürk A, Yasuno K, Brunken WJ, Atalar E, Yalçınkaya C, Dinçer A, Bronen RA, Mane S, Özçelik T, Lifton RP, Šestan N, Bilgüvar K, Günel M. Recessive LAMC3 mutations cause malformations of occipital cortical development. Nature Genetics 2011, 43: 590-594. PMID: 21572413, PMCID: PMC3329933, DOI: 10.1038/ng.836.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCerebral CortexConsanguinityGene DeletionGenes, RecessiveHumansLamininMagnetic Resonance ImagingMiceMutationOccipital LobeSpecies Specificity
2010
Novel VLDLR microdeletion identified in two Turkish siblings with pachygyria and pontocerebellar atrophy
Kolb LE, Arlier Z, Yalcinkaya C, Ozturk AK, Moliterno JA, Erturk O, Bayrakli F, Korkmaz B, DiLuna ML, Yasuno K, Bilguvar K, Ozcelik T, Tuysuz B, State MW, Gunel M. Novel VLDLR microdeletion identified in two Turkish siblings with pachygyria and pontocerebellar atrophy. Neurogenetics 2010, 11: 319-325. PMID: 20082205, DOI: 10.1007/s10048-009-0232-y.Peer-Reviewed Original ResearchMeSH KeywordsCerebellar AtaxiaChildConsanguinityGait AtaxiaHomozygoteHumansLissencephalyMagnetic Resonance ImagingMaleOlivopontocerebellar AtrophiesReceptors, LDLSequence DeletionSiblingsTurkeyConceptsCerebellar hypoplasiaMajority of patientsLow-density lipoprotein receptorConstellation of findingsNon-progressive cerebellar ataxiaDensity lipoprotein receptorAutosomal recessive patternHomozygous deletionNeurological sequelaePontocerebellar atrophyDisequilibrium syndromeTurkish familyCerebellar atrophyNovel homozygous deletionLipoprotein receptorCerebellar ataxiaHypoplasiaMotor developmentMotor disabilityTurkish siblingsRecessive patternVLDLR geneCongenital ataxiaHeterogeneous groupSingle nucleotide polymorphisms
2009
A novel heterozygous deletion within the 3’ region of the PAX6 gene causing isolated aniridia in a large family group
Bayrakli F, Guney I, Bayri Y, Ercan-Sencicek AG, Ceyhan D, Cankaya T, Mason C, Bilguvar K, Bayrakli S, Mane SM, State MW, Gunel M. A novel heterozygous deletion within the 3’ region of the PAX6 gene causing isolated aniridia in a large family group. Journal Of Clinical Neuroscience 2009, 16: 1610-1614. PMID: 19793656, DOI: 10.1016/j.jocn.2009.03.022.Peer-Reviewed Original ResearchMeSH Keywords3' Untranslated RegionsAniridiaChromosome AberrationsChromosomes, Human, Pair 11CytogeneticsEye ProteinsFamily HealthFemaleGene Expression ProfilingGenetic Predisposition to DiseaseHomeodomain ProteinsHumansMagnetic Resonance ImagingMaleOligonucleotide Array Sequence AnalysisPaired Box Transcription FactorsPAX6 Transcription FactorRepressor ProteinsSequence DeletionTurkeyConceptsCopy number variationsPAX6 geneNumber variationsArray-based comparative genomic hybridizationBox gene 6Submicroscopic copy number variationsHuman genomeComparative genomic hybridizationCytogenetic variationRegulatory elementsChromosome 11p13Human diseasesGenesGene 6Causative genesGenomic hybridizationSubmicroscopic deletionHeterozygous deletionDeletionLarge family groupsComplete absenceMolecular diagnosisFamily groupsChromosomal abnormalitiesGenome
2008
Novel NTRK1 mutations cause hereditary sensory and autonomic neuropathy type IV: demonstration of a founder mutation in the Turkish population
Tüysüz B, Bayrakli F, DiLuna ML, Bilguvar K, Bayri Y, Yalcinkaya C, Bursali A, Ozdamar E, Korkmaz B, Mason CE, Ozturk AK, Lifton RP, State MW, Gunel M. Novel NTRK1 mutations cause hereditary sensory and autonomic neuropathy type IV: demonstration of a founder mutation in the Turkish population. Neurogenetics 2008, 9: 119-125. PMID: 18322713, DOI: 10.1007/s10048-008-0121-9.Peer-Reviewed Original ResearchConceptsNeurotrophic tyrosine kinase receptor type 1Autonomic neuropathy type IVHSAN IVHereditary sensoryNTRK1 geneTurkish populationFounder mutationType IVReceptor type 1Nerve growth factorSplice site mutationAutosomal recessive disorderCongenital insensitivityNovel frameshift mutationSame splice site mutationNTRK1 mutationsNoxious stimuliType 1Motor developmentSweat glandsGrowth factorNovel nonsense mutationRecessive disorderSpectrum of mutationsAnhidrosis