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Start Over Author "Gulec, Elif Yilmaz" Topic genomics
4 results on '"Gulec, Elif Yilmaz"'

1. High prevalence of multilocus pathogenic variation in neurodevelopmental disorders in the Turkish population.

Author

Mitani T, Isikay S, Gezdirici A, Gulec EY, Punetha J, Fatih JM, Herman I, Akay G, Du H, Calame DG, Ayaz A, Tos T, Yesil G, Aydin H, Geckinli B, Elcioglu N, Candan S, Sezer O, Erdem HB, Gul D, Demiral E, Elmas M, Yesilbas O, Kilic B, Gungor S, Ceylan AC, Bozdogan S, Ozalp O, Cicek S, Aslan H, Yalcintepe S, Topcu V, Bayram Y, Grochowski CM, Jolly A, Dawood M, Duan R, Jhangiani SN, Doddapaneni H, Hu J, Muzny DM, Marafi D, Akdemir ZC, Karaca E, Carvalho CMB, Gibbs RA, Posey JE, Lupski JR, and Pehlivan D

Subjects
Adolescent, Adult, Child, Child, Preschool, Cohort Studies, Female, Humans, Infant, Infant, Newborn, Male, Middle Aged, Neurodevelopmental Disorders genetics, Neurodevelopmental Disorders pathology, Pedigree, Prevalence, Turkey epidemiology, Exome Sequencing, Young Adult, Genomics methods, Mutation, Neurodevelopmental Disorders epidemiology, Phenotype
Abstract

Neurodevelopmental disorders (NDDs) are clinically and genetically heterogenous; many such disorders are secondary to perturbation in brain development and/or function. The prevalence of NDDs is > 3%, resulting in significant sociocultural and economic challenges to society. With recent advances in family-based genomics, rare-variant analyses, and further exploration of the Clan Genomics hypothesis, there has been a logarithmic explosion in neurogenetic "disease-associated genes" molecular etiology and biology of NDDs; however, the majority of NDDs remain molecularly undiagnosed. We applied genome-wide screening technologies, including exome sequencing (ES) and whole-genome sequencing (WGS), to identify the molecular etiology of 234 newly enrolled subjects and 20 previously unsolved Turkish NDD families. In 176 of the 234 studied families (75.2%), a plausible and genetically parsimonious molecular etiology was identified. Out of 176 solved families, deleterious variants were identified in 218 distinct genes, further documenting the enormous genetic heterogeneity and diverse perturbations in human biology underlying NDDs. We propose 86 candidate disease-trait-associated genes for an NDD phenotype. Importantly, on the basis of objective and internally established variant prioritization criteria, we identified 51 families (51/176 = 28.9%) with multilocus pathogenic variation (MPV), mostly driven by runs of homozygosity (ROHs) - reflecting genomic segments/haplotypes that are identical-by-descent. Furthermore, with the use of additional bioinformatic tools and expansion of ES to additional family members, we established a molecular diagnosis in 5 out of 20 families (25%) who remained undiagnosed in our previously studied NDD cohort emanating from Turkey., Competing Interests: Declaration of interests J.R.L. has stock ownership in 23andMe, is a paid consultant for the Regeneron Genetics Center, and is a co-inventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing conducted at Baylor Genetics (BG) Laboratories. J.R.L. serves on the Scientific Advisory Board of BG. Other authors have no potential conflicts to report., (Copyright © 2021 American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.)

Published
2021
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2. The Genomics of Arthrogryposis, a Complex Trait: Candidate Genes and Further Evidence for Oligogenic Inheritance.

Author

Pehlivan D, Bayram Y, Gunes N, Coban Akdemir Z, Shukla A, Bierhals T, Tabakci B, Sahin Y, Gezdirici A, Fatih JM, Gulec EY, Yesil G, Punetha J, Ocak Z, Grochowski CM, Karaca E, Albayrak HM, Radhakrishnan P, Erdem HB, Sahin I, Yildirim T, Bayhan IA, Bursali A, Elmas M, Yuksel Z, Ozdemir O, Silan F, Yildiz O, Yesilbas O, Isikay S, Balta B, Gu S, Jhangiani SN, Doddapaneni H, Hu J, Muzny DM, Boerwinkle E, Gibbs RA, Tsiakas K, Hempel M, Girisha KM, Gul D, Posey JE, Elcioglu NH, Tuysuz B, and Lupski JR

Subjects
Adolescent, Adult, Child, Child, Preschool, Cohort Studies, Connectin genetics, Female, Gestational Age, Humans, Infant, Infant, Newborn, Male, Mosaicism, Pedigree, Ryanodine Receptor Calcium Release Channel genetics, Vesicular Transport Proteins genetics, Exome Sequencing, Young Adult, Arthrogryposis genetics, Arthrogryposis pathology, DNA Copy Number Variations, Genetic Markers, Genomics methods, Multifactorial Inheritance genetics, Mutation
Abstract

Arthrogryposis is a clinical finding that is present either as a feature of a neuromuscular condition or as part of a systemic disease in over 400 Mendelian conditions. The underlying molecular etiology remains largely unknown because of genetic and phenotypic heterogeneity. We applied exome sequencing (ES) in a cohort of 89 families with the clinical sign of arthrogryposis. Additional molecular techniques including array comparative genomic hybridization (aCGH) and Droplet Digital PCR (ddPCR) were performed on individuals who were found to have pathogenic copy number variants (CNVs) and mosaicism, respectively. A molecular diagnosis was established in 65.2% (58/89) of families. Eleven out of 58 families (19.0%) showed evidence for potential involvement of pathogenic variation at more than one locus, probably driven by absence of heterozygosity (AOH) burden due to identity-by-descent (IBD). RYR3, MYOM2, ERGIC1, SPTBN4, and ABCA7 represent genes, identified in two or more families, for which mutations are probably causative for arthrogryposis. We also provide evidence for the involvement of CNVs in the etiology of arthrogryposis and for the idea that both mono-allelic and bi-allelic variants in the same gene cause either similar or distinct syndromes. We were able to identify the molecular etiology in nine out of 20 families who underwent reanalysis. In summary, our data from family-based ES further delineate the molecular etiology of arthrogryposis, yielded several candidate disease-associated genes, and provide evidence for mutational burden in a biological pathway or network. Our study also highlights the importance of reanalysis of individuals with unsolved diagnoses in conjunction with sequencing extended family members., (Copyright © 2019 American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.)

Published
2019
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3. Exome Sequencing of a Primary Ovarian Insufficiency Cohort Reveals Common Molecular Etiologies for a Spectrum of Disease

Author

Serap Turan, Zeynep Coban Akdemir, Angad Jolly, Firdevs Bas, Davut Pehlivan, Hadia Hijazi, Zehra Yavas Abali, Tuula Rinne, Jennifer E. Posey, Yavuz Bayram, Tahsin Stefan Barakat, Tulay Tos, Roberto Colombo, Shalini N. Jhangiani, Gozde Yesil, Sukran Poyrazoglu, Zeynep Atay, Alper Gezdirici, James R. Lupski, Donna M. Muzny, Tulay Guran, Zehra Aycan, Richard A. Gibbs, Elif Yilmaz Gulec, Janson White, Serpil Bas, Ender Karaca, Feyza Darendeliler, Abdullah Bereket, Bülent Hacıhamdioğlu, Saygin Abali, İstinye Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Bülent Hacıhamdioğlu / 0000-0001-7070-6429, Hacihamdioglu, Bulent, Bülent Hacıhamdioğlu / GBK-6773-2022, Bülent Hacıhamdioğlu / 22134579900, Clinical Genetics, YEŞİL, Gözde, Jolly, Angad, Bayram, Yavuz, Turan, Serap, Aycan, Zehra, Tos, Tulay, Abali, Zehra Yavas, Akdemir, Zeynep Hande Coban, Hijazi, Hadia, Bas, Serpil, Atay, Zeynep, Guran, Tulay, Abali, Saygin, Bas, Firdevs, Darendeliler, Feyza, Colombo, Roberto, Barakat, Tahsin Stefan, Rinne, Tuula, White, Janson J., Yesil, Gozde, Gezdirici, Alper, Gulec, Elif Yilmaz, Karaca, Ender, Pehlivan, Davut, Jhangiani, Shalini N., Muzny, Donna M., Poyrazoglu, Sukran, Bereket, Abdullah, Gibbs, Richard A., Posey, Jennifer E., and Lupski, James R.

Subjects
MECHANISM, 0301 basic medicine, endocrine system diseases, Endocrinology, Diabetes and Metabolism, Clinical Biochemistry, PROTEIN, Cell Cycle Proteins, Disease, Primary Ovarian Insufficiency, VARIANTS, Biochemistry, Cohort Studies, 0302 clinical medicine, Endocrinology, Gene Frequency, Locus heterogeneity, FAILURE, Exome sequencing, Jolly A., Bayram Y., Turan S., Aycan Z., Tos T., Abali Z. Y. , Hacihamdioglu B., Akdemir Z. H. C. , Hijazi H., Bas S., et al., -Exome Sequencing of a Primary Ovarian Insufficiency Cohort Reveals Common Molecular Etiologies for a Spectrum of Disease-, JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM, cilt.104, ss.3049-3067, 2019, Genetics, 030219 obstetrics & reproductive medicine, Minichromosome Maintenance Proteins, REARRANGEMENTS, Oligogenic Inheritance, DNA-Binding Proteins, INSIGHTS, Female, medicine.medical_specialty, Immunoglobulins, Locus (genetics), Genomics, Biology, 03 medical and health sciences, Hypergonadotropic hypogonadism, All institutes and research themes of the Radboud University Medical Center, Internal medicine, Exome Sequencing, medicine, Humans, HOP2-MND1, Settore BIO/10 - BIOCHIMICA, Allele frequency, Clinical Research Articles, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], IDENTIFICATION, MUTATIONS, Hypogonadism, Biochemistry (medical), DNA Helicases, medicine.disease, GENE, 030104 developmental biology, exome
Abstract

Context: Primary ovarian insufficiency (POI) encompasses a spectrum of premature menopause, including both primary and secondary amenorrhea. For 75% to 90% of individuals with hyper-gonadotropic hypogonadism presenting as POI, the molecular etiology is unknown. Common etiologies include chromosomal abnormalities, environmental factors, and congenital disorders affecting ovarian development and function, as well as syndromic and nonsyndromic single gene disorders suggesting POI represents a complex trait. Objective: To characterize the contribution of known disease genes to POI and identify molecular etiologies and biological underpinnings of POI. Design, Setting, and Participants: We applied exome sequencing (ES) and family-based genomics to 42 affected female individuals from 36 unrelated Turkish families, including 31 with reported parental consanguinity. Results: This analysis identified likely damaging, potentially contributing variants and molecular diagnoses in 16 families (44%), including 11 families with likely damaging variants in known genes and five families with predicted deleterious variants in disease genes (IGSF10, MND1, MRPS22, and SOHLH1) not previously associated with POI. Of the 16 families, 2 (13%) had evidence for potentially pathogenic variants at more than one locus. Absence of heterozygosity consistent with identity-by-descent mediated recessive disease burden contributes to molecular diagnosis in 15 of 16 (94%) families. GeneMatcher allowed identification of additional families from diverse genetic backgrounds. Conclusions: ES analysis of a POI cohort further characterized locus heterogeneity, reaffirmed the association of genes integral to meiotic recombination, demonstrated the likely contribution of genes involved in hypothalamic development, and documented multilocus pathogenic variation suggesting the potential for oligogenic inheritance contributing to the development of POI. National Human Genome Research Institute (NHGRI)United States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI); National Heart Lung and Blood Institute (NHBLI)United States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Heart Lung & Blood Institute (NHLBI) [UM1 HG006542]; National Institute of Neurologic Disorders and Stroke (NINDS)United States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of Neurological Disorders & Stroke (NINDS) [R35NS105078]; NHGRIUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI) [K08 HG008986, U54HG003273]; Howard Hughes Medical Research Fellows Program; Baylor College of Medicine Medical Scientist Training Program; Clinical Research Training Scholarship in Neuromuscular Disease; American Academy of Neurology (AAN); American Brain Foundation (ABF); Netherlands Organization for Scientific Research (ZonMW Veni)Netherlands Organization for Scientific Research (NWO) [91617021]; NARSAD Young Investigator Grant from the Brain & Behavior Research FoundationNARSAD; Muscle Study Group (MSG) This study was supported in part by the National Human Genome Research Institute (NHGRI) and National Heart Lung and Blood Institute (NHBLI) to the Baylor-Hopkins Center for Mendelian Genomics (BHCMG; UM1 HG006542 to J.R.L.); NHGRI grant to Baylor College of Medicine Human Genome Sequencing Center (U54HG003273 to R.A.G.), and National Institute of Neurologic Disorders and Stroke (NINDS; R35NS105078 to J.R.L.). J.E.P. was supported by NHGRI K08 HG008986. A.J. was supported in part by the Howard Hughes Medical Research Fellows Program and the Baylor College of Medicine Medical Scientist Training Program. D. P. is supported by Clinical Research Training Scholarship in Neuromuscular Disease partnered by the American Academy of Neurology (AAN), American Brain Foundation (ABF), and Muscle Study Group (MSG). T.S.B. was supported by the Netherlands Organization for Scientific Research (ZonMW Veni, Grant 91617021) and by an NARSAD Young Investigator Grant from the Brain & Behavior Research Foundation. WOS:000482558500001 31042289 Q1

Published
2019

4. The Genomics of Arthrogryposis, a Complex Trait: Candidate Genes and Further Evidence for Oligogenic Inheritance

Author

Maja Hempel, Jennifer E. Posey, Yavuz Bayram, Eric Boerwinkle, Katta M. Girisha, Ender Karaca, Timur Yildirim, Anju Shukla, Jaya Punetha, Ilhan A. Bayhan, Harsha Doddapaneni, Christopher M. Grochowski, Davut Gul, Aysegul Bursali, Davut Pehlivan, Elif Yilmaz Gulec, Richard A. Gibbs, Zeynep Ocak, Jawid M Fatih, Ibrahim Sahin, Gozde Yesil, Burhan Balta, Onur Yildiz, Alper Gezdirici, Tatjana Bierhals, James R. Lupski, Zafer Yüksel, Hatice Mutlu Albayrak, Donna M. Muzny, Jianhong Hu, Fatma Silan, Zeynep Coban Akdemir, Shen Gu, Öztürk Özdemir, Haktan Bağış Erdem, Periyasamy Radhakrishnan, Burcu Tabakci, Beyhan Tüysüz, Nilay Güneş, Shalini N. Jhangiani, Osman Yeşilbaş, Yavuz Sahin, Nursel Elcioglu, Muhsin Elmas, Konstantinos Tsiakas, Sedat Isikay, Pehlivan, Davut, Bayram, Yavuz, Gunes, Nilay, Akdemir, Zeynep Coban, Shukla, Anju, Bierhals, Tatjana, Tabakci, Burcu, Sahin, Yavuz, Gezdirici, Alper, Fatih, Jawid M., Gulec, Elif Yilmaz, Yesil, Gozde, Punetha, Jaya, Ocak, Zeynep, Grochowski, Christopher M., Karaca, Ender, Albayrak, Hatice Mutlu, Radhakrishnan, Periyasamy, Erdem, Haktan Bagis, Sahin, Ibrahim, Yildirim, Timur, Bayhan, Ilhan A., Bursali, Aysegul, Elmas, Muhsin, Yuksel, Zafer, Ozdemir, Ozturk, Silan, Fatma, Yildiz, Onur, Yesilbas, Osman, Isikay, Sedat, Balta, Burhan, Gu, Shen, Jhangiani, Shalini N., Doddapaneni, Harsha, Hu, Jianhong, Muzny, Donna M., Boerwinkle, Eric, Gibbs, Richard A., Tsiakas, Konstantinos, Hempel, Maja, Girisha, Katta Mohan, Gul, Davut, Posey, Jennifer E., Elcioglu, Nursel H., Tuysuz, Beyhan, Lupski, James R., HKÜ, Sağlık Bilimleri Fakültesi, Fizyoterapi ve Rehabilitasyon Bölümü, YEŞİL, Gözde, İÜC, Cerrahpaşa Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, and OMÜ

Subjects
Male, 0301 basic medicine, Multifactorial Inheritance, Candidate gene, Vesicular Transport Proteins, DE-NOVO, DISEASE, Cohort Studies, MYOPATHY, MULTIPLEX CONGENITA, SKELETAL-MUSCLE, MUTATIONS, PATIENT, FAT1, MECHANISMS, DELETION, 0302 clinical medicine, Candidate Genes and Further Evidence for Oligogenic Inheritance-, AMERICAN JOURNAL OF HUMAN GENETICS, cilt.105, ss.132-150, 2019 [Pehlivan D., Bayram Y., Gunes N., Akdemir Z. C. , Shukla A., Bierhals T., TABAKCI B., Sahin Y., Gezdirici A., Fatih J. M. , et al., -The Genomics of Arthrogryposis, a Complex Trait], Connectin, Copy-number variation, Child, Genetics (clinical), Exome sequencing, Arthrogryposis, Genetics, Mosaicism, Oligogenic Inheritance, Genomics, Pedigree, 3. Good health, Child, Preschool, Female, medicine.symptom, Adult, Genetic Markers, Adolescent, DNA Copy Number Variations, Gestational Age, Locus (genetics), Biology, Article, Young Adult, 03 medical and health sciences, Exome Sequencing, medicine, Humans, Genetic heterogeneity, Infant, Newborn, Infant, Ryanodine Receptor Calcium Release Channel, 030104 developmental biology, Mutation, 030217 neurology & neurosurgery, Comparative genomic hybridization
Abstract

Erdem, Haktan Bagis/0000-0002-4391-1387; Albayrak, Hatice Mutlu/0000-0001-5624-3878; isikay, sedat/0000-0003-0103-9612; Grochowski, Christopher/0000-0002-3884-7720; Gezdirici, Alper/0000-0002-2432-9279; KM, Girisha/0000-0002-0139-8239; Gu, Shen/0000-0003-3107-1218; YESIL, GOZDE/0000-0003-1964-6306; Gezdirici, Alper/0000-0002-2432-9279; Tuysuz, Beyhan/0000-0002-9620-5021; Fatih, Jawid/0000-0002-3927-2711; YUKSEL, Zafer/0000-0002-2085-5773; Balta, Burhan/0000-0003-2672-2493; Posey, Jennifer/0000-0003-4814-6765; Bayhan, Ilhan/0000-0001-8308-1309; Punetha, Jaya/0000-0002-6774-4464; YILDIRIM, Timur/0000-0003-0291-7632 WOS:000473723000011 PubMed ID: 31230720 Arthrogryposis is a clinical finding that is present either as a feature of a neuromuscular condition or as part of a systemic disease in over 400 Mendelian conditions. The underlying molecular etiology remains largely unknown because of genetic and phenotypic heterogeneity. We applied exome sequencing (ES) in a cohort of 89 families with the clinical sign of arthrogryposis. Additional molecular techniques including array comparative genomic hybridization (aCGH) and Droplet Digital PCR (ddPCR) were performed on individuals who were found to have pathogenic copy number variants (CNVs) and mosaicism, respectively. A molecular diagnosis was established in 65.2% (58/89) of families. Eleven out of 58 families (19.0%) showed evidence for potential involvement of pathogenic variation at more than one locus, probably driven by absence of heterozygosity (AOH) burden due to identity-by-descent (IBD). RYR3, MYOM2, ERGIC1, SPTBN4, and ABCA7 represent genes, identified in two or more families, for which mutations are probably causative for arthrogryposis. We also provide evidence for the involvement of CNVs in the etiology of arthrogryposis and for the idea that both mono-allelic and bi-allelic variants in the same gene cause either similar or distinct syndromes. We were able to identify the molecular etiology in nine out of 20 families who underwent reanalysis. In summary, our data from family-based ES further delineate the molecular etiology of arthrogryposis, yielded several candidate disease-associated genes, and provide evidence for mutational burden in a biological pathway or network. Our study also highlights the importance of reanalysis of individuals with unsolved diagnoses in conjunction with sequencing extended family members. National Human Genome Research Institute (NHGRI)United States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI) [UM1 HG006542]; National Heart, Lung, and Blood Institute (NHLBI)United States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Heart Lung & Blood Institute (NHLBI) [UM1 HG006542]; NHGRIUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI) [K08 HG008986]; National Institutes of Health - Brain Disorders and Development Training Grant [T32 NS043124-17]; Clinical Research Training Scholarship in Neuromuscular Disease; Tubitak project, TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [217S675]; Indian Council of Medical Research, New Delhi, IndiaIndian Council of Medical Research (ICMR) [5/13/58/2015/NCD-III]; [R35 NS105078]; [512848]; NATIONAL HUMAN GENOME RESEARCH INSTITUTEUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI) [K08HG008986, UM1HG006542, K08HG008986, UM1HG006542, UM1HG006542, UM1HG006542, K08HG008986, UM1HG006542] Funding Source: NIH RePORTER; NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKEUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of Neurological Disorders & Stroke (NINDS) [R35NS105078, T32NS043124, T32NS043124, T32NS043124, R35NS105078, T32NS043124, T32NS043124, R35NS105078, T32NS043124, T32NS043124, T32NS043124, R35NS105078] Funding Source: NIH RePORTER This work was supported in part by R35 NS105078 and MDA#512848 to J.R.L. and a jointly funded National Human Genome Research Institute (NHGRI) and National Heart, Lung, and Blood Institute (NHLBI) grant to the Baylor-Hopkins Center for Mendelian Genomics (UM1 HG006542). J.E.P. is supported by NHGRI K08 HG008986. D.P. is supported by the National Institutes of Health - Brain Disorders and Development Training Grant (T32 NS043124-17) and a Clinical Research Training Scholarship in Neuromuscular Disease partnered by the American Brain Foundation (ABF) and Muscle Study Group (MSG). This study is partly funded by Tubitak project number 217S675, Turkey to N.E. and B.T.. This study is partly funded by Indian Council of Medical Research, New Delhi, India with File no.: No. 5/13/58/2015/NCD-III to A.S.

Published
2019

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