2023
Eighth case of Li‐Campeau syndrome in a Turkish patient caused by a novel pathogenic variant in UBR7 and expanding the phenotype
Edizadeh M, Kaymakcalan H, Valilou S, Şahin Y. Eighth case of Li‐Campeau syndrome in a Turkish patient caused by a novel pathogenic variant in UBR7 and expanding the phenotype. American Journal Of Medical Genetics Part A 2023, 191: 1465-1469. PMID: 36757286, DOI: 10.1002/ajmg.a.63146.Peer-Reviewed Original ResearchConceptsExome sequencingPathogenic variantsCo-segregation studiesE3 ubiquitin protein ligaseUbiquitin-protein ligaseSplice site variantIn silico algorithmsBiallelic pathogenic variantsSite variantsUBR7Co-segregationSanger sequencingAutosomal recessive disorderBioinformatics prediction analysisDysmorphic featuresVariation c.Turkish familyHeterozygous statePathogenic effectsRecessive disorderCongenital heart defectsVariantsSequenceHeart defectsGenital anomalies
2022
Investigation of the lawsuits regarding down syndrome
KAYMAKCALAN H. Investigation of the lawsuits regarding down syndrome. Marmara Medical Journal 2022 DOI: 10.5472/marumj.1186743.Peer-Reviewed Original ResearchInvestigation of the lawsuits regarding Down syndrome
KAYMAKCALAN H. Investigation of the lawsuits regarding Down syndrome. Marmara Medical Journal 2022, 35: 293-296. DOI: 10.5472/marumj.1195921.Peer-Reviewed Original ResearchClinical, demographic and genetic features of patients with congenital heart disease : A single center experience
KAYMAKCALAN H, YALCINKAYA L, NIKEREL E, YALCIN Y, DONG W, Sencıcek A. Clinical, demographic and genetic features of patients with congenital heart disease : A single center experience. Marmara Medical Journal 2022, 35: 159-163. DOI: 10.5472/marumj.1120570.Peer-Reviewed Original ResearchMutation spectrum of congenital heart disease in a consanguineous Turkish population
Dong W, Kaymakcalan H, Jin SC, Diab NS, Tanıdır C, Yalcin ASY, Ercan‐Sencicek A, Mane S, Gunel M, Lifton RP, Bilguvar K, Brueckner M. Mutation spectrum of congenital heart disease in a consanguineous Turkish population. Molecular Genetics & Genomic Medicine 2022, 10: e1944. PMID: 35481623, PMCID: PMC9184665, DOI: 10.1002/mgg3.1944.Peer-Reviewed Original ResearchConceptsWhole-exome sequencingLaterality defectsUnique genetic architectureCongenital heart diseaseConsanguineous familyGenetic architectureCausal genesCHD genesGenome analysisHomozygous variantGenetic landscapeGenetic lesionsGenomic alterationsHeart diseaseConsanguineous populationFunction variantsRecessive variantsCHD probandsGenesType of CHDMutation spectrumStructural congenital heart diseaseVariantsCHD subjectsAdditional patientsA rare etiology of tetralogy of Fallot with pulmonary atresia: Renpenning syndrome
Kaymakçalan H, Ercan-Şençiçek AG, Cebeci AN, Dong W, Yalçın A. A rare etiology of tetralogy of Fallot with pulmonary atresia: Renpenning syndrome. The Anatolian Journal Of Cardiology 2022, 26: 149-150. PMID: 35190366, PMCID: PMC8878915, DOI: 10.5152/anatoljcardiol.2021.554.Peer-Reviewed Case Reports and Technical Notes
2021
Genetic alterations and pathways in patients with Hereditary Angioedema of Unknown Cause (U-HAE)
KAYMAKCALAN H, Hande A, CAGLAYAN A, GULBAHAR O, GOKMEN E, NIKEREL E. Genetic alterations and pathways in patients with Hereditary Angioedema of Unknown Cause (U-HAE). Marmara Medical Journal 2021, 34: 274-278. DOI: 10.5472/marumj.1009115.Peer-Reviewed Original ResearchWhole-exome sequencingExome sequencingHereditary angioedemaU-HAEGenetic alterationsDownstream functional analysisMyoF geneNormal C1 inhibitorControl groupBlood coagulation pathwayGenesFunctional analysisNo significant differenceRare diseasePathwayC1 inhibitorMutationsPatientsUnknown causeCoagulation pathwaySequenceSignificant differenceAngioedemaVariantsC1QBPPrevalence and clinical/molecular characteristics of PTEN mutations in Turkish children with autism spectrum disorders and macrocephaly
Kaymakcalan H, Kaya İ, Binici N, Nikerel E, Özbaran B, Aksoy M, Erbilgin S, Özyurt G, Jahan N, Çelik D, Yararbaş K, Yalçınkaya L, Köse S, Durak S, Ercan‐Sencicek A. Prevalence and clinical/molecular characteristics of PTEN mutations in Turkish children with autism spectrum disorders and macrocephaly. Molecular Genetics & Genomic Medicine 2021, 9: e1739. PMID: 34268892, PMCID: PMC8404225, DOI: 10.1002/mgg3.1739.Peer-Reviewed Original ResearchCorrelation of PAPP-A values with maternal characteristics, biochemical and ultrasonographic markers of pregrancy
KAYMAKCALAN H, UZUT O, HARKONEN J, BAKIR GUNGOR B. Correlation of PAPP-A values with maternal characteristics, biochemical and ultrasonographic markers of pregrancy. Marmara Medical Journal 2021, 34: 18-23. DOI: 10.5472/marumj.866601.Peer-Reviewed Original ResearchPAPP-A valuesPAPP-APregnant womenUltrasonographic markersMaternal characteristicsPregnancy-associated plasma protein-A levelsPregnancy-associated plasma protein-ANon-diabetic pregnant womenWomen of Caucasian originPAPP-A levelsPlasma protein-AProtein-A levelsCrown-rump lengthTrimester screeningCaucasian originTertiary hospitalMedical backgroundRisk predictionA levelsWomenProtein ARacial originSubgroupsMarkersTrimester
2019
1q21.1 Deletions and Duplications in 2 Siblings with Psychiatric Problems
Kaymakçalan H, Li P. 1q21.1 Deletions and Duplications in 2 Siblings with Psychiatric Problems. Indian Journal Of Pediatrics 2019, 86: 1068-1068. PMID: 31270733, DOI: 10.1007/s12098-019-03014-2.Peer-Reviewed Original Research
2018
Biallelic loss of human CTNNA2, encoding αN-catenin, leads to ARP2/3 complex overactivity and disordered cortical neuronal migration
Schaffer AE, Breuss MW, Caglayan AO, Al-Sanaa N, Al-Abdulwahed HY, Kaymakçalan H, Yılmaz C, Zaki MS, Rosti RO, Copeland B, Baek ST, Musaev D, Scott EC, Ben-Omran T, Kariminejad A, Kayserili H, Mojahedi F, Kara M, Cai N, Silhavy JL, Elsharif S, Fenercioglu E, Barshop BA, Kara B, Wang R, Stanley V, James KN, Nachnani R, Kalur A, Megahed H, Incecik F, Danda S, Alanay Y, Faqeih E, Melikishvili G, Mansour L, Miller I, Sukhudyan B, Chelly J, Dobyns WB, Bilguvar K, Jamra RA, Gunel M, Gleeson JG. Biallelic loss of human CTNNA2, encoding αN-catenin, leads to ARP2/3 complex overactivity and disordered cortical neuronal migration. Nature Genetics 2018, 50: 1093-1101. PMID: 30013181, PMCID: PMC6072555, DOI: 10.1038/s41588-018-0166-0.Peer-Reviewed Original ResearchConceptsNeuronal migrationHuman cerebral cortexCortical neuronal migrationΒ-catenin signalingCerebral cortexPotential disease mechanismsDevelopmental brain defectsBiallelic truncating mutationsNeuronal phenotypeBiallelic lossBrain defectsBiallelic mutationsTruncating mutationsDisease mechanismsΒ-cateninPachygyriaRecessive formNeurite stabilityNeuronsFamily membersCTNNA2OveractivityPatients
2017
Novel compound heterozygous mutations in GPT2 linked to microcephaly, and intellectual developmental disability with or without spastic paraplegia
Kaymakcalan H, Yarman Y, Goc N, Toy F, Meral C, Ercan‐Sencicek A, Gunel M. Novel compound heterozygous mutations in GPT2 linked to microcephaly, and intellectual developmental disability with or without spastic paraplegia. American Journal Of Medical Genetics Part A 2017, 176: 421-425. PMID: 29226631, DOI: 10.1002/ajmg.a.38558.Peer-Reviewed Case Reports and Technical NotesConceptsNovel compound heterozygous missense variantsSpastic paraplegiaNovel compound heterozygous variantsCompound heterozygous missense variantsMissense variantsNovel compound heterozygous mutationsCompound heterozygous variantsHeterozygous missense variantsCompound heterozygous mutationsFamily membersTurkish cohortIndex patientsIntellectual developmental disabilitiesClinical phenotypeHeterozygous variantsDevelopmental delayHeterozygous mutationsAffected sisterMale siblingsUnaffected parentsFemale siblingsIntellectual disabilityDevelopmental disabilitiesSanger sequencingParaplegiaALPK3 gene mutation in a patient with congenital cardiomyopathy and dysmorphic features
Çağlayan AO, Sezer RG, Kaymakçalan H, Ulgen E, Yavuz T, Baranoski JF, Bozaykut A, Harmanci AS, Yalcin Y, Youngblood MW, Yasuno K, Bilgüvar K, Gunel M. ALPK3 gene mutation in a patient with congenital cardiomyopathy and dysmorphic features. Molecular Case Studies 2017, 3: a001859. PMID: 28630369, PMCID: PMC5593152, DOI: 10.1101/mcs.a001859.Peer-Reviewed Original ResearchConceptsNovel homozygous frameshift mutationWk of gestationHomozygous pathogenic variantNovel disease-causing genesPhenotypic featuresHomozygous frameshift mutationWhole-exome sequencingHeterozygous family membersUnrelated consanguineous familiesEchocardiographic examinationDisease groupPrimary cardiomyopathyMale infantHypertrophic cardiomyopathyRoutine diagnostic toolCardiac diseaseCardiac abnormalitiesMale fetusesCardiomyopathyPathogenic variantsGenetic testingDysmorphic featuresGene mutationsPast historyDisease-causing genesExpanding the Genotypic Spectrum of Bathing Suit Ichthyosis
Marukian NV, Hu RH, Craiglow BG, Milstone LM, Zhou J, Theos A, Kaymakcalan H, Akkaya DA, Uitto JJ, Vahidnezhad H, Youssefian L, Bayliss SJ, Paller AS, Boyden LM, Choate KA. Expanding the Genotypic Spectrum of Bathing Suit Ichthyosis. JAMA Dermatology 2017, 153: 537-543. PMID: 28403434, PMCID: PMC5817618, DOI: 10.1001/jamadermatol.2017.0202.Peer-Reviewed Original Research
2016
Biallelic Mutations in Citron Kinase Link Mitotic Cytokinesis to Human Primary Microcephaly
Li H, Bielas SL, Zaki MS, Ismail S, Farfara D, Um K, Rosti RO, Scott EC, Tu S, C. NC, Gabriel S, Erson-Omay EZ, Ercan-Sencicek AG, Yasuno K, Çağlayan AO, Kaymakçalan H, Ekici B, Bilguvar K, Gunel M, Gleeson JG. Biallelic Mutations in Citron Kinase Link Mitotic Cytokinesis to Human Primary Microcephaly. American Journal Of Human Genetics 2016, 99: 501-510. PMID: 27453578, PMCID: PMC4974110, DOI: 10.1016/j.ajhg.2016.07.004.Peer-Reviewed Original ResearchConceptsInduced pluripotent stem cellsPrimary microcephalyHuman primary microcephalyAutosomal recessive primary microcephalyNon-progressive intellectual disabilityAmino acid residuesPluripotent stem cellsMitotic cytokinesisCellular functionsGenome editingCell divisionKinase domainAbnormal cytokinesisCRISPR/Homozygous missense mutationCytokinesisKinase activityMultipolar spindlesNeural progenitorsAcid residuesFunction mutationsMissense mutationsStem cellsMultiple rolesMutations366 Bathing suit ichthyosis: Novel mutations and clues to pathogenesis
Marukian N, Zhou J, Hu R, Theos A, Kaymakcalan H, Bayliss S, Paller A, Boyden L, Choate K. 366 Bathing suit ichthyosis: Novel mutations and clues to pathogenesis. Journal Of Investigative Dermatology 2016, 136: s65. DOI: 10.1016/j.jid.2016.02.399.Peer-Reviewed Original Research
2015
Challenges in the management of hip dislocation a patient with Prader Willi syndrome
Eren A, Cebeci A, Kaymakcalan H, Abay B. Challenges in the management of hip dislocation a patient with Prader Willi syndrome. Bone Abstracts 2015 DOI: 10.1530/boneabs.4.p66.Peer-Reviewed Original Research
2014
Changes in peanut allergy prevalence in different ethnic groups in 2 time periods
Fox A, Kaymakcalan H, Perkin M, du Toit G, Lack G. Changes in peanut allergy prevalence in different ethnic groups in 2 time periods. Journal Of Allergy And Clinical Immunology 2014, 135: 580-582. PMID: 25441289, DOI: 10.1016/j.jaci.2014.09.022.Peer-Reviewed Original ResearchNGLY1 mutation causes neuromotor impairment, intellectual disability, and neuropathy
Caglayan AO, Comu S, Baranoski JF, Parman Y, Kaymakçalan H, Akgumus GT, Caglar C, Dolen D, Erson-Omay EZ, Harmanci AS, Mishra-Gorur K, Freeze HH, Yasuno K, Bilguvar K, Gunel M. NGLY1 mutation causes neuromotor impairment, intellectual disability, and neuropathy. European Journal Of Medical Genetics 2014, 58: 39-43. PMID: 25220016, PMCID: PMC4804755, DOI: 10.1016/j.ejmg.2014.08.008.Peer-Reviewed Original ResearchConceptsN-glycanase 1Proteasome-mediated degradationConserved enzymeFrame-shift mutationApparent intellectual disabilityBase pair deletionNeuromotor impairmentNovel homozygous frame-shift mutationHomozygous frame-shift mutationNeuronal cellsPair deletionAmyotrophic lateral sclerosisIntellectual disabilityMutationsProteinNeurological functionCorneal opacityNeurologic diseaseLateral sclerosisParkinson's diseaseProgressive lossDiseaseCytoplasmImpairmentDeletionBrain Malformations Associated With Knobloch Syndrome—Review of Literature, Expanding Clinical Spectrum, and Identification of Novel Mutations
Caglayan AO, Baranoski JF, Aktar F, Han W, Tuysuz B, Guzel A, Guclu B, Kaymakcalan H, Aktekin B, Akgumus GT, Murray PB, Erson-Omay EZ, Caglar C, Bakircioglu M, Sakalar YB, Guzel E, Demir N, Tuncer O, Senturk S, Ekici B, Minja FJ, Šestan N, Yasuno K, Bilguvar K, Caksen H, Gunel M. Brain Malformations Associated With Knobloch Syndrome—Review of Literature, Expanding Clinical Spectrum, and Identification of Novel Mutations. Pediatric Neurology 2014, 51: 806-813.e8. PMID: 25456301, PMCID: PMC5056964, DOI: 10.1016/j.pediatrneurol.2014.08.025.Peer-Reviewed Original ResearchConceptsBrain malformationsKnobloch syndromeCentral nervous system malformationsExpanding Clinical SpectrumStructural brain abnormalitiesStructural brain malformationsNervous system malformationsHuman cerebral cortexHuman cortical developmentWhole-exome sequencingConfirmatory Sanger sequencingCase seriesClinical presentationCerebral cortexClinical spectrumBrain abnormalitiesOcular abnormalitiesSystem malformationsClinical utilityCortical developmentImmunohistochemical analysisRare diseaseCOL18A1 mutationsBrain developmentPatients