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Öz Yıldız S, Yalnızoğlu D, Şimsek Kiper PÖ, Göçmen R, Soğukpınar M, Utine GE, Haliloğlu G. Delineation of ADPRHL2 Variants: Report of Two New Patients with Review of the Literature. Neuropediatrics 2024; 55:156-165. [PMID: 38365196 DOI: 10.1055/s-0044-1779618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
ADPRHL2 is involved in posttranslational modification and is known to have a role in physiological functions such as cell signaling, DNA repair, gene control, cell death, and response to stress. Recently, a group of neurological disorders due to ADPRHL2 variants is described, characterized by childhood-onset, stress-induced variable movement disorders, neuropathy, seizures, and neurodegenerative course. We present the diagnostic pathway of two pediatric patients with episodic dystonia and ataxia, who later had a neurodegenerative course complicated by central hypoventilation syndrome due to the same homozygous ADPRHL2 variant. We conducted a systematic literature search and data extraction procedure following the Preferred Reporting Items for Systematic Review and Meta-Analysis 2020 statement in terms of patients with ADPRHL2 variants, from 2018 up to 3 February, 2023. In total, 12 articles describing 47 patients were included in the final analysis. Median age at symptom onset was 2 (0.7-25) years, with the most common presenting symptoms being gait problems (n = 19, 40.4%), seizures (n = 16, 34%), ataxia (n = 13, 27.6%), and weakness (n = 10, 21.2%). Triggering factors (28/47; 59.5%) and regression (28/43; 60.4%), axonal polyneuropathy (9/23; 39.1%), and cerebral and cerebellar atrophy with white matter changes (28/36; 77.7%) were the other clues. The fatality rate and median age of death were 44.6% (n = 21) and 7 (2-34) years, respectively. ADPRHL2 variants should be considered in the context of episodic, stress-induced pediatric and adult-onset movement disorders and seizures.
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Affiliation(s)
- Sibel Öz Yıldız
- Division of Pediatric Neurology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Dilek Yalnızoğlu
- Division of Pediatric Neurology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimsek Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Rahşan Göçmen
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Merve Soğukpınar
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Göknur Haliloğlu
- Division of Pediatric Neurology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Şimşek-Kiper PÖ, Karaosmanoğlu B, Taşkıran EZ, Türer ÖB, Utine GE, Soyer T. A novel GRK2 variant in a patient with Jeune asphyxiating thoracic dysplasia accompanied by Morgagni hernia. Am J Med Genet A 2024:e63629. [PMID: 38647386 DOI: 10.1002/ajmg.a.63629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/22/2024] [Accepted: 03/29/2024] [Indexed: 04/25/2024]
Abstract
Skeletal ciliopathies constitute a subgroup of ciliopathies characterized by various skeletal anomalies arising from mutations in genes impacting cilia, ciliogenesis, intraflagellar transport process, or various signaling pathways. Short-rib thoracic dysplasias, previously known as Jeune asphyxiating thoracic dysplasia (ATD), stand out as the most prevalent and prototypical form of skeletal ciliopathies, often associated with semilethality. Recently, pathogenic variants in GRK2, a subfamily of mammalian G protein-coupled receptor kinases, have been identified as one of the underlying causes of Jeune ATD. In this study, we report a new patient with Jeune ATD, in whom exome sequencing revealed a novel homozygous GRK2 variant, and we review the clinical features and radiographic findings. In addition, our findings introduce Morgagni hernia and an organoaxial-type rotation anomaly of the stomach and midgut malrotation for the first time in the context of this recently characterized GRK2-related skeletal ciliopathy.
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Affiliation(s)
- Pelin Özlem Şimşek-Kiper
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Zihni Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özlem Boybeyi Türer
- Department of Pediatric Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Tutku Soyer
- Department of Pediatric Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Daşar T, Yıldız AE, Demirkıran G, Utine GE, Şimşek Kiper PÖ. A rare skeletal dysplasia in the etiology of severe scoliosis: Diaphanospondylodysostosis. Eur J Med Genet 2024; 68:104924. [PMID: 38355094 DOI: 10.1016/j.ejmg.2024.104924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
Diaphanospondylodysostosis is a rare genetic skeletal disorder caused by biallelic variants in the BMPER gene. The term, diaphanospondylodysostosis, includes ischiospinal dysotosis, which was previously known as a distinct entity with milder clinical features. The clinical phenotype of diaphanospondylodysostosis is quite variable with mortality in early postnatal life in some patients. Main clinical and radiographic features are narrow thorax, vertebral segmentation defects, rib anomalies, ossification defects of vertebrae, ischium and sacrum, and renal cysts. In this study, we report on a 14-year-old girl patient with diaphanospondylodysostosis harbouring a novel BMPER mutation. The patient presented with severe scoliosis and severely hypoplastic/aplastic distal phalanges of the fingers and toes, findings yet hitherto not described in this syndrome.
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Affiliation(s)
- Tuğba Daşar
- Hacettepe University, Department of Pediatrics, Division of Pediatric Genetics, Ankara, Turkey.
| | | | | | - Gülen Eda Utine
- Hacettepe University, Department of Pediatrics, Division of Pediatric Genetics, Ankara, Turkey
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Soğukpınar M, Utine GE, Boduroğlu K, Şimşek-Kiper PÖ. A spectrum of TP63-related disorders with eight affected individuals in five unrelated families. Eur J Med Genet 2024; 68:104911. [PMID: 38281558 DOI: 10.1016/j.ejmg.2024.104911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 11/08/2023] [Accepted: 01/20/2024] [Indexed: 01/30/2024]
Abstract
TP63-related disdorders broadly involve varying combinations of ectodermal dysplasia (sparse hair, hypohydrosis, tooth abnormalities, nail dysplasia), cleft lip/palate, acromelic malformation, split-hand/foot malformation/syndactyly, ankyloblepharon filiforme adnatum, lacrimal duct obstruction, hypopigmentation, and hypoplastic breasts and/or nipples. TP63-related disorders are associated with heterozygous pathogenic variants in TP63 and include seven overlapping phenotypes; Ankyloblepharon-ectodermal defects-cleft lip/palate syndrome (AEC), Ectrodactyly-ectodermal dysplasia-cleft lip/palate syndrome 3 (EEC3), Limb-mammary syndrome (LMS), Acro-dermo-ungual-lacrimal-tooth syndrome (ADULT), Rapp-Hodgkin syndrome (RHS), Split-hand/foot malformation 4 (SHFM4), and Orofacial cleft 8. We report on five unrelated families with 8 affected individuals in which the probands presented with varying combinations of ectodermal dysplasia, cleft lip/palate, split-hand/foot malformation, lacrimal duct obstruction, and ankyloblepharon filiforme adnatum. The clinical diagnosis involved AEC syndrome (2 patients), EEC3 syndrome (2 patients), and a yet hitherto unclassified TP63-related disorder. Sanger sequence analysis of the TP63 gene was performed revealing five different variants among which four were novel and three were de novo. The identificated TP63 variants co-segregated with the other affected individuals in the families. The abnormalities of ectoderm derived structures including hair, nails, sweat glands, and teeth should alert the physician to the possibility of TP63-related disorders particularly in the presence of orofacial clefting.
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Affiliation(s)
- Merve Soğukpınar
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey.
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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Soyer T, Boybeyi Ö, Karaosmanoğlu B, Taşkıran E, Şimşek ÖP, Utine GE. CHRND variant in a paternally inherited esophageal atresia and tracheoesophgageal fistula: Report of a case. Birth Defects Res 2024; 116:e2286. [PMID: 38087897 DOI: 10.1002/bdr2.2286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 11/16/2023] [Indexed: 01/27/2024]
Abstract
BACKGROUND The familial occurrence of esophageal atresia and tracheoesophageal fistula (EA-TEF) is very rare and the genetic basis behind the isolated familial cases have not been identified. A male infant born with EA-TEF and his affected father were evaluated with whole genome sequence to define a genetic causative variation in paternally inherited EA-TEF. CASE REPORT A male infant was born to 29-years-old, gravida 1, para 1 women by normal vaginal delivery. The patient was diagnosed as Type-C EA-TEF. In his family history, his father was also operated for EA-TEF during neonatal period. He had no associated anomaly despite patent foramen ovale. Genomic DNAs were extracted from peripheral blood of the patient and the father. When causative genes responsible for EA-TEF were filtered out, four different variants in NOTCH2, SAMD9, SUPT20H and CHRND were found. Except the variant found in CHRND (NM_000751.2, c.381C>G, p.(Tyr127Ter)), other three variants were not found to be segregated with the father who has EA-TEF also. This nonsense variant was not found in GnomAD database. CONCLUSION CHRND variant found in both EA-TEF patient and his affected father suggest that CHRND variant might possibly be considered as one of the causative genetic variants in familial isolated EA-TEF patients.
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Affiliation(s)
- Tutku Soyer
- Department of Pediatric Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özlem Boybeyi
- Department of Pediatric Surgery, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Taşkıran
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özlem Pelin Şimşek
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Nayır Büyükşahin H, Emiralioglu N, Simşek Kiper PÖ, Sunman B, Güzelkaş I, Alboğa D, Akgül Erdal M, Boduroglu K, Utine GE, Yalcın E, Doğru D, Kiper N, Ozcelik U. Evaluation of polysomnography findings in children with genetic skeletal disorders. J Sleep Res 2023; 32:e13914. [PMID: 37128177 DOI: 10.1111/jsr.13914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
Children with genetic skeletal disorders have variable conditions that can lead to sleep-disordered breathing, and polysomnography is the gold standard for diagnosing this condition. We aimed to review polysomnography findings, to assess the severity of sleep apnea, and to investigate the clinical variables predictive of sleep-disordered breathing in these patients. We retrospectively collected the medical records of patients with genetic skeletal disorders who underwent polysomnography for 5 years. Twenty-seven children with various genetic skeletal disorders, including achondroplasia (14), Crouzon syndrome (3), acromesomelic dysplasia Maroteaux type (3), Apert syndrome (2), osteopetrosis (1), Jeune dysplasia (1), Desbuquois dysplasia (1), acrodysostosis (1), and spondyloepiphyseal dysplasia (1) were enrolled. The median age at the first polysomnography was 58 (1st-3rd quartile: 31-113) months. The overall sleep-disordered breathing results were: 19 (70.3%) had obstructive sleep apneas (OSA) (4 mild, 6 moderate, 9 severe), 2 (7.4%) had central apneas, 4 (14.8%) had nocturnal hypoventilation. There was a significant correlation between non-ambulatory status with both total AHI and OSA (p < 0.001, rho: -0.66/p = 0.04, rho: 0.38, respectively). Nine patients received positive airway pressure titration, and the oAHI values of all returned to the normal range. These patients were started with positive airway pressure treatment. Our cohort showed that the majority of the patients with skeletal dysplasia had sleep apnea syndrome characterised mainly by OSA, highlighting the importance of polysomnography screening for sleep disorders. Positive airway pressure therapy represents an effective treatment for sleep-disordered breathing in those patients.
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Affiliation(s)
- Halime Nayır Büyükşahin
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Nagehan Emiralioglu
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Simşek Kiper
- Division of Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Birce Sunman
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ismail Güzelkaş
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Didem Alboğa
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Meltem Akgül Erdal
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroglu
- Division of Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ebru Yalcın
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Deniz Doğru
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Nural Kiper
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ugur Ozcelik
- Division of Pulmonology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Gültekin‐Zaim ÖB, Yalçın‐Çakmaklı G, Çolpak Aİ, Şimşek‐Kiper PÖ, Utine GE, Elibol B. Cockayne syndrome type 3 with dystonia-ataxia and clicking blinks. Mov Disord Clin Pract 2023; 10:S48-S50. [PMID: 37636235 PMCID: PMC10448610 DOI: 10.1002/mdc3.13778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 08/29/2023] Open
Affiliation(s)
| | | | - Ayşe İlksen Çolpak
- Department of NeurologyHacettepe University Faculty of MedicineAnkaraTurkey
| | - Pelin Özlem Şimşek‐Kiper
- Department of Pediatrics, Pediatric Genetic Disorders UnitHacettepe University Faculty of MedicineAnkaraTurkey
| | - Gülen Eda Utine
- Department of Pediatrics, Pediatric Genetic Disorders UnitHacettepe University Faculty of MedicineAnkaraTurkey
| | - Bülent Elibol
- Department of NeurologyHacettepe University Faculty of MedicineAnkaraTurkey
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Güleray Lafcı N, Karaosmanoglu B, Taskiran EZ, Simsek-Kiper PO, Utine GE. Mutated Transcripts of ZEB2 Do Not Undergo Nonsense-Mediated Decay in Mowat-Wilson Syndrome. Mol Syndromol 2023; 14:258-265. [PMID: 37323203 PMCID: PMC10267494 DOI: 10.1159/000528769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/16/2022] [Indexed: 12/03/2023] Open
Abstract
Introduction Mowat-Wilson syndrome (MWS) is an autosomal-dominant complex developmental disorder characterized by distinctive facial appearance, intellectual disability, epilepsy, and various clinically heterogeneous abnormalities reminiscent of neurocristopathies. MWS is caused by haploinsufficiency of ZEB2 due to heterozygous point mutations and copy number variations. Case Presentation We report on two unrelated affected individuals with novel ZEB2indel mutations, molecularly confirming the diagnosis of MWS. Quantitative real-time polymerase chain reaction (PCR) for the comparison of total transcript levels and allele-specific quantitative real-time PCR were also performed and demonstrated that the truncating mutations did not lead to nonsense-mediated decay as expected. Conclusion ZEB2 encodes a multifunctional pleiotropic protein. Novel mutations in ZEB2 should be reported in order that genotype-phenotype correlations might be established in this clinically heterogeneous syndrome. Further cDNA and protein studies may help elucidate the underlying pathogenetic mechanisms of MWS since nonsense-mediated RNA decay was found to be absent in only a few studies including this study.
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Affiliation(s)
- Naz Güleray Lafcı
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Beren Karaosmanoglu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ekim Z. Taskiran
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Pelin Ozlem Simsek-Kiper
- Department of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Akalın A, Şimşek-Kiper PÖ, Taşkıran EZ, Karaosmanoğlu B, Utine GE, Boduroğlu K. A novel biallelic CRIPT variant in a patient with short stature, microcephaly, and distinctive facial features. Am J Med Genet A 2023; 191:1119-1127. [PMID: 36630262 DOI: 10.1002/ajmg.a.63120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/11/2022] [Accepted: 12/29/2022] [Indexed: 01/12/2023]
Abstract
Primordial dwarfism (PD) is one of a highly heterogeneous group of disorders characterized by severe prenatal/postnatal growth restriction. Defects in various pathways such as DNA repair mechanism, impaired centrioles, abnormal IGF expression, and spliceosomal machinery may cause PD including Seckel syndrome, Silver-Russell syndrome. Microcephalic osteodysplastic primordial dwarfism (MOPD) types I/III, II, and Meier-Gorlin syndrome. In recent years with the wide application of exome sequencing (ES) in the field of PD, new genes involved in novel pathways causing new phenotypes have been identified. Pathogenic variants in CRIPT (MIM# 604594) encoding cysteine-rich PDZ domain-binding protein have recently been described in patients with PD with a unique phenotype. This phenotype is characterized by prenatal/postnatal growth restriction, facial dysmorphism, ocular abnormalities, and ectodermal findings such as skin lesions with hyper/hypopigmented patchy areas and hair abnormalities. To our knowledge, only three patients with homozygous or compound heterozygous variants in CRIPT have been reported so far. Here, we report on a male patient who presented with profound prenatal/postnatal growth restriction, developmental delay, dysmorphic facial features, and skin lesions along with the findings of bicytopenia and extensive retinal pigmentation defect. A novel truncating homozygous variant c.7_8delTG; p.(Cys3Argfs*4) was detected in CRIPT with the aid of ES. With this report, we further expand the mutational and clinical spectrum of this rare entity.
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Affiliation(s)
- Akçahan Akalın
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - Ekim Z Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Demir E, Tuna Kirsaçlioğlu C, Saltik-Temizel İN, Ürel-Demir G, Karaosmanoğlu B, Taşkiran EZ, Şimşek-Kiper PÖ, Utine GE, Kuloğlu Z, Kansu A. Neonatal ichthyosis-sclerosing cholangitis syndrome: report of a novel mutation and a review of the literature. Clin Dysmorphol 2023; 32:88-91. [PMID: 36779798 DOI: 10.1097/mcd.0000000000000451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Affiliation(s)
- Engin Demir
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University
| | - Ceyda Tuna Kirsaçlioğlu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University
| | | | | | - Beren Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Zihni Taşkiran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | | | - Zarife Kuloğlu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University
| | - Aydan Kansu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, Ankara University
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Çınar HÜ, Kızılkan MP, Akalın A, Kiper PÖŞ, Utine GE, Derman O, Kanbur N, Akgül S. Assessing the menstrual cycle and related problems in adolescents with a Genetic Syndrome associated with Intellectual Disability. J Pediatr Adolesc Gynecol 2023:S1083-3188(23)00278-4. [PMID: 36889454 DOI: 10.1016/j.jpag.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 01/28/2023] [Accepted: 02/25/2023] [Indexed: 03/10/2023]
Abstract
STUDY OBJECTIVE This study aimed to assess the experience and quality of life related to menstruation in adolescents with a genetic syndrome accompanying intellectual disability (ID). METHODS This prospective cross-sectional study was conducted on 49 adolescents with a genetic syndrome accompanied by ID, which was defined by the Wescher Intelligence scale for children-Revised and 50 unaffected controls. In a survey created by the authors, demographic information, menstrual history, and information regarding menstrual difficulties, school abstinence, dysmenorrhea, and premenstrual changes were collected. The Childhood health assessment questionnaire was utilized to evaluate physical impairment, whereas the QoL scale was utilized to evaluate QoL in general and during menstruation. Data was collected from caregivers and additionally from the participants with mild ID, whereas in the control group, data was collected from the participants. RESULTS Menstrual history were similar between the two groups. Menstruation related school absenteeism was higher among the ID group (8%vs.40.5%, p<0.001). Mothers reported that 73% of their daughters need help with menstruation care. Social, school, psychosocial functioning, and total QoL scores during menstruation were significantly lower in the ID group when compared with the controls. A significant decrease in physical, emotional, social, psychosocial functioning and total QoL score occurred during menstruation in the ID group. None of the mothers requested menstrual suppression. CONCLUSION Although menstrual patterns in two groups were similar, QoL decreased significantly while menstruating in the ID group. Despite a decrease in QoL, an increase in school absenteeism and a high percentage of needing assistance while menstruating none of the mothers requested menstrual suppression.
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Affiliation(s)
| | | | - Akçahan Akalın
- Hacettepe University, Division of Pediatric Genetics, Ankara, Turkey
| | | | - Gülen Eda Utine
- Hacettepe University, Division of Pediatric Genetics, Ankara, Turkey
| | - Orhan Derman
- Hacettepe University, Division of Adolescent Medicine, Ankara, Turkey
| | - Nuray Kanbur
- Hacettepe University, Division of Adolescent Medicine, Ankara, Turkey; Ottawa University, Division of Adolescent Medicine, Ottawa, Canada
| | - Sinem Akgül
- Hacettepe University, Division of Adolescent Medicine, Ankara, Turkey.
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Düzova A, Akgül S, Utine GE, Yıldız Y. The Türkiye-Syria Earthquake: a response from the editors of the Turkish Journal of Pediatrics. Turk J Pediatr 2023; 65:1-2. [PMID: 36866979 DOI: 10.24953/turkjped.2023.e001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Ali Düzova
- The Turkish Journal of Pediatrics Editorial Office, Hacettepe University İhsan Doğramacı Children's Hospital, 06100 Ankara
| | - Sinem Akgül
- The Turkish Journal of Pediatrics Editorial Office, Hacettepe University İhsan Doğramacı Children's Hospital, 06100 Ankara
| | - Gülen Eda Utine
- The Turkish Journal of Pediatrics Editorial Office, Hacettepe University İhsan Doğramacı Children's Hospital, 06100 Ankara
| | - Yılmaz Yıldız
- The Turkish Journal of Pediatrics Editorial Office, Hacettepe University İhsan Doğramacı Children's Hospital, 06100 Ankara
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Daşar T, Şimşek-Kiper PÖ, Taşkıran EZ, Çağan M, Özyüncü Ö, Deren Ö, Utine GE, Güçer KŞ, Boduroğlu K. A lethal and rare cause of arthrogryposis: Glyt1 encephalopathy. Eur J Med Genet 2022; 65:104631. [DOI: 10.1016/j.ejmg.2022.104631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 09/21/2022] [Accepted: 09/28/2022] [Indexed: 11/03/2022]
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14
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Kolkıran A, Karaosmanoğlu B, Taşkıran ZE, Şimşek-Kiper PÖ, Utine GE. The rare reason of pain in hip girdle: Mucolipidosis type 3 gamma. Turk J Pediatr 2022; 63:1091-1096. [PMID: 35023661 DOI: 10.24953/turkjped.2021.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Mucolipidosis type 3 gamma (ML-IIIγ) is an autosomal recessive, rare and slowly progressive lysosomal storage disease. Short stature, restricted joint mobility, thick skin, and flat face with mildly coarse features are major clinical findings. It usually manifests in the third year. With advancing age, claw hand deformities, carpal tunnel syndrome, and scoliosis may develop. Morbidity is determined mainly by skeletal involvement. N-acetyl glucosamine-1 phospotransferase enzyme is composed of 2α, 2β and 2γ subunits. The active enzyme is essential in the transport of hydrolases to the lysosomes, via addition of mannose-6-phosphate in the Golgi apparatus. GNPTG gene encodes the γ2 subunits, and biallelic mutations cause ML-IIIγ. CASE A previously healthy 14-year-old male patient had leg pain after the age of nine, and was admitted with short stature, mild coarse face, pectus deformity, digital stiffness, scoliosis, genu valgum and mitral valve prolapse. He did not have intellectual disability or corneal clouding. Radiographs showed irregularities in the acetabular roof and proximal epiphyses of the femur and irregularities in the end plates of vertebral bodies. A novel homozygous missense variant in the exon 5 of GNPTG, c.316G > T, confirmed the diagnosis of ML- IIIγ. Juvenile idiopathic arthritis (JIA), progressive pseudorheumatoid dysplasia (PPRD), ML-II, ML-IIIαβ, galactosialidosis and mucopolysaccharidosis should be considered in the differential diagnosis. CONCLUSIONS ML-IIIγ should be kept in mind in populations with high consanguineous marriage rates or with possible founder effect, in patients with short stature and skeletal destruction. Genetic tests should be planned for a definitive diagnosis.
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Affiliation(s)
- Abdulkerim Kolkıran
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Zihni Ekim Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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15
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Süleyman M, Oğuz S, Kaykı G, Çelik HT, Kiper PÖŞ, Utine GE, Yiğit Ş. A very rare case of a newborn with tetrasomy 9p and literature review. Turk J Pediatr 2022; 64:171-178. [DOI: 10.24953/turkjped.2021.685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Akalın A, Ertuğrul İ, Şimşek-Kiper PÖ, Utine GE, Boduroğlu K. Main Physical Features, Echocardiographic and Renal Ultrasonographic Findings of Turner Syndrome in 107 Pediatric Patients. Mol Syndromol 2021; 12:335-341. [PMID: 34899142 DOI: 10.1159/000516816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/23/2021] [Indexed: 11/19/2022] Open
Abstract
Turner syndrome (TS) is one of the most common malformation syndromes in females. A total number of 107 TS patients, diagnosed between 2000 and 2018, were evaluated for their phenotypic features, and cardiac and renal findings. The mean age of patients at admission was 10.08 ± 4.9 years (range, newborn to 18 years). Four different karyotype groups were encountered, and the most common findings in all groups were short stature, followed by cubitus valgus. Echocardiographic findings of 85 patients were available among which 63 (n = 63/85, 74.1%) were found to be normal. The most common cardiac anomaly was left ventricular outflow tract/aortic arch pathology detected in 9 patients (n = 9/22, 40.9%). Renal malformations were detected in 15 patients (n = 15/84, 17.9%) by renal ultrasonography, and horseshoe kidney was the most common renal malformation, followed by left multicystic dysplastic kidney. There was no significant difference in the frequency of renal malformation and cardiac anomalies among the 4different karyotype groups (χ2 exact test, p > 0.05). Compared with the literature, the frequency of renal anomalies was detected at a lower rate. Karyotype analysis should be carried out in all female patients with short stature, even if there are no associated phenotypic findings suggestive of TS. Since cardiac anomalies are frequently seen in TS patients and they represent a common cause of mortality, echocardiography should be carried out as soon as the definite diagnosis is established. Renal anomalies may be less frequent than cardiac anomalies; however, evaluation of TS patients with renal ultrasonography should be done at the time of diagnosis. Although renal ultrasonography can be used as the initial renal screening in TS patients, it may underestimate the frequency of renal malformation; hence, further management may be required.
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Affiliation(s)
- Akçahan Akalın
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - İlker Ertuğrul
- Department of Pediatric Cardiology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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17
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Oğuz S, Arslan UE, Kiper PÖŞ, Alikaşifoğlu M, Boduroğlu K, Utine GE. Diagnostic yield of microarrays in individuals with non-syndromic developmental delay and intellectual disability. J Intellect Disabil Res 2021; 65:1033-1048. [PMID: 34661940 DOI: 10.1111/jir.12892] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 07/04/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Intellectual disability (ID), or developmental delay (DD) when the individual is yet under 5 years of age, is evident before 18 years of age and is characterised by significant limitations in both intellectual functioning and adaptive behaviour. ID/DD may be clinically classified as syndromic or non-syndromic. Genomic copy number variations (CNVs) constitute a well-established aetiological subgroup of ID/DD. Overall diagnostic yield of microarrays is estimated at 10-25% for ID/DD, especially higher when particular clinical features that render the condition syndromic accompany. METHODS In this study, we aimed to investigate the diagnostic yield of microarrays in the subgroup of individuals with non-syndromic ID/DD (NSID/NSDD). A total of 302 NSID/NSDD individuals who have undergone microarray analysis between October 2013 and April 2020 were included. Accompanying clinical data, including head circumference, delayed developmental areas, seizures and behavioural problems were collected and analysed separately in NSID and NSDD subgroups. RESULTS The diagnostic yield of microarray analyses in NSID/NSDD was determined as 10.9% in NSID (10.7%) and in NSDD (11.1%). Presence of behavioural and epileptic problems did not contribute to the diagnostic yield. However, in the presence of macrocephaly, the contribution to diagnostic yield was statistically significant particularly in NSDD group. The most common pathogenic CNVs involved chromosomes 16, 15 and X. Lastly, we propose a Xq21.32q22.1 deletion as likely pathogenic in a child with isolated language delay and accompanying seizures. CONCLUSIONS Particularly in neurodevelopmental diseases, microarrays are useful for establishing the diagnosis and detecting novel susceptibility regions. Future studies would accurately classify the herein presented variants of uncertain significance CNVs as pathogenic or benign.
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Affiliation(s)
- S Oğuz
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - U E Arslan
- Department of Health Research, Public Health Institute, Ankara, Turkey
| | - P Ö Ş Kiper
- Department of Pediatrics, Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - M Alikaşifoğlu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Department of Pediatrics, Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - K Boduroğlu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Department of Pediatrics, Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - G E Utine
- Department of Pediatrics, Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
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18
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Akgün-Doğan Ö, Simsek-Kiper PO, Taşkıran E, Schossig A, Utine GE, Zschocke J, Boduroglu K. Kohlschütter-Tönz Syndrome With a Novel ROGD1 Variant in 3 Individuals: A Rare Clinical Entity. J Child Neurol 2021; 36:816-822. [PMID: 33866847 DOI: 10.1177/08830738211004736] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Kohlschütter-Tönz syndrome (OMIM 226750) is a rare disorder with autosomal recessive inheritance among epileptic encephalopathy syndromes. To date, only 31 Kohlschütter-Tönz syndrome families have been reported in the literature. Early-onset epilepsy, progressive global developmental delay, and amelogenesis imperfecta are the main components of the syndrome. Mutations in ROGDI (MIM 226750) and SLC13A5 (MIM 615905) are responsible for Kohlschütter-Tönz syndrome. Here, we report on the clinical and molecular characteristics of 3 individuals from 2 families, all harboring the same homozygous novel deleterious variant in ROGD1, along with a long-term follow-up and review of the literature. Although the phenotypic features are almost consistent in Kohlschütter-Tönz syndrome, overlooking dental findings and diverse degrees of variability in clinical findings makes diagnosis challenging occasionally. Because there is a limited number of reported patients, identification of new patients and delineation of clinical and molecular findings will increase the awareness of clinicians and enable establishing genotype-phenotype correlations.
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Affiliation(s)
- Özlem Akgün-Doğan
- Division of Pediatric Genetics, Department of Pediatrics, 37515Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Ozlem Simsek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, 37515Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Taşkıran
- Department of Medical Genetics, 64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Anna Schossig
- Institute of Human Genetics, 27280Medical University Innsbruck, Innsbruck, Austria
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, 37515Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Johannes Zschocke
- Institute of Human Genetics, 27280Medical University Innsbruck, Innsbruck, Austria
| | - Koray Boduroglu
- Division of Pediatric Genetics, Department of Pediatrics, 37515Hacettepe University Faculty of Medicine, Ankara, Turkey
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19
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Güleray N, Koşukcu C, Oğuz S, Ürel Demir G, Taşkıran EZ, Kiper PÖŞ, Utine GE, Alanay Y, Boduroğlu K, Alikaşifoğlu M. Investigation of Genetic Causes in a Developmental Disorder: Oculoauriculovertebral Spectrum. Cleft Palate Craniofac J 2021; 59:1114-1124. [PMID: 34410171 DOI: 10.1177/10556656211038115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Oculoauriculovertebral spectrum (OAVS) is a genetically and clinically heterogeneous disorder that occurs due to a developmental field defect of the first and second pharyngeal arches. Even though recent whole exome sequencing studies (WES) have led to identification of several genes associated with this spectrum in a subset of individuals, complete pathogenesis of OAVS remains unsolved. In this study, molecular genetic etiology of OAVS was systematically investigated. DESIGN/SETTING/PATIENTS A cohort of 23 Turkish patients with OAVS, referred to Hacettepe University Hospital, Department of Pediatric Genetics from 2008 to 2018, was included in this study. Minimal diagnostic criteria for OAVS were considered as unilateral microtia or hemifacial microsomia with preauricular skin tag. The cohort was clinically reevaluated for craniofacial and extracranial findings. Molecular etiology was investigated using candidate gene sequencing following copy number variant (CNV) analysis. WES was also performed for 2 of the selected patients. RESULTS Patients in the study cohort presented similar demographic and phenotypic characteristics to previously described patients in the literature except for a higher frequency of bilaterality, cardiac findings, and intellectual disability/developmental delay. CNV analysis revealed a possible genetic etiology for 3 patients (13%). Additional WES in 1 of the 2 patients uncovered a novel heterozygous nonsense variant in Elongation factor Tu GTP-binding domain-containing 2 (EFTUD2) causing mandibulofacial dysostosis with microcephaly (MFDM), which clinically overlaps with OAVS. CONCLUSION Detailed clinical evaluation for any patient with OAVS is recommended due to a high rate of accompanying systemic findings. We further expand the existing genetic heterogeneity of OAVS by identifying several CNVs and a phenotypically overlapping disorder, MFDM.
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Affiliation(s)
- Naz Güleray
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Can Koşukcu
- Department of Bioinformatics, Hacettepe University Institute of Health Sciences, Ankara, Turkey
| | - Sümeyra Oğuz
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gizem Ürel Demir
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Z Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - Gülen Eda Utine
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yasemin Alanay
- Department of Pediatric Genetics, Acıbadem University Faculty of Medicine, Istanbul, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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20
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Soyer T, Karaosmanoglu B, Taskiran EZ, Kiper PÖŞ, Karnak İ, Boduroğlu K, Utine GE. Biallelic ITGB4 variants in familial pyloric atresia without epidermolysis bullosa: Report of two families with five siblings. Am J Med Genet A 2021; 185:3427-3432. [PMID: 34403180 DOI: 10.1002/ajmg.a.62462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/28/2021] [Accepted: 08/06/2021] [Indexed: 11/11/2022]
Abstract
Pyloric atresia (PA) is a rare gastrointestinal anomaly that occurs either as an isolated lesion or in association with other congenital or hereditary anomalies. Familial occurrence of PA with epidermolysis bullosa (EB) has been well documented and variants in ITGA6, ITGB4, and PLEC are known to cause EB with PA. However, no gene variants have been defined in familial isolated PA. Five siblings with familial isolated PA are presented that suggest biallelic ITGB4 variants may underlie the development of PA without EB. Five siblings from two unrelated families with isolated PA were studied with exome sequencing (ES) to identify the genetic etiology in isolated familial cases. Exome sequencing was performed in one affected patient from each family. Validation and segregation studies were done by Sanger sequencing. Parents were first cousins in one family but there was no consanguinity in the other family. Type-2 PA was detected in both families and none of the probands had associated anomalies. All patients underwent successful gastroduodenostomy and have been under follow-up uneventfully. All patients had biallelic ITGB4 variants, c.2032G > T p.(Asp678Tyr) being a novel one. Biallelic ITGB4 variants may underlie the development of PA without associated EB. Further detection of variants in this gene may establish any possible genotype-phenotype correlations.
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Affiliation(s)
- Tutku Soyer
- Department of Pediatric Surgery, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoglu
- Department of Medical Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Ekim Z Taskiran
- Department of Medical Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | | | - İbrahim Karnak
- Department of Pediatric Surgery, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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21
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Taşkıran EZ, Karaosmanoğlu B, Koşukcu C, Ürel-Demir G, Akgün-Doğan Ö, Şimşek-Kiper PÖ, Alikaşifoğlu M, Boduroğlu K, Utine GE. Diagnostic yield of whole-exome sequencing in non-syndromic intellectual disability. J Intellect Disabil Res 2021; 65:577-588. [PMID: 33739554 DOI: 10.1111/jir.12835] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 02/23/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Aetiological diagnosis in non-syndromic intellectual disability (NSID) still poses a diagnostic challenge to clinicians. METHODS Screening is currently achieved by chromosomal microarrays followed by whole-exome sequencing (WES). In search for the aetiological yield of WES in patients with NSID, 59 unrelated patients were studied. RESULTS Among the 59 patients, 44 (74.6%) were from consanguineous unions. Epilepsy was present in 11 (37.9%), behavioural problems in 12 (41.4%) and autistic features in 14 (48.3%). WES analysis resulted in molecular diagnosis in 29 patients (49.2%). Some of the genes were specific for nervous system functioning, like HERC1, TBC1D7, LINS, HECW2, DEAF1, HNMT, DLG3, NRXN1 and HUWE1. Others were ubiquitously expressed genes involved in fundamental cellular processes, like IARS, UBE3A, COQ4, TAF1, SETBP1, ARV1, ZC4H2, KAT6A, ASXL3, THOC6, HNRNPH2, TUBA8 and KIF1A. Twenty-two (75.8%) were consanguineously married; however, only 12 (41.4%) of the detected genes caused autosomal recessive phenotypes. CONCLUSIONS This cohort suggests that recessive genes probably represent an actually smaller subgroup of NSID, even among families with consanguinity. Although in societies with high consanguinity rates, considering the recessive inheritance first seems to be an advantageous strategy, de novo mutations in autosomal dominantly expressed genes represent the major aetiological group in patients with NSID, even among those patients from consanguineous families.
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Affiliation(s)
- E Z Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - B Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - C Koşukcu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - G Ürel-Demir
- Department of Pediatrics, Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ö Akgün-Doğan
- Department of Pediatrics, Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - P Ö Şimşek-Kiper
- Department of Pediatrics, Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - M Alikaşifoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - K Boduroğlu
- Department of Pediatrics, Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - G E Utine
- Department of Pediatrics, Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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22
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Ürel-Demir G, Şimşek-Kiper PÖ, Öncel İ, Utine GE, Haliloğlu G, Boduroğlu K. Natural history of TRPV4-Related disorders: From skeletal dysplasia to neuromuscular phenotype. Eur J Paediatr Neurol 2021; 32:46-55. [PMID: 33774370 DOI: 10.1016/j.ejpn.2021.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 12/29/2022]
Abstract
TRPV4-related disorders constitute a broad spectrum of clinical phenotypes including several genetic skeletal and neuromuscular disorders, in which clinical variability and somewhat overlapping features are present. These disorders have previously been considered to be clinically distinct phenotypes before their molecular basis was discovered. However, with the identification of TRPV4 variants in the etiology, they are referred as TRPV4-related disorders (TRPV4-pathies), and are now mainly grouped into skeletal dysplasias and neuromuscular disorders. The skeletal dysplasia group includes metatropic dysplasia, parastremmatic dysplasia, spondyloepiphyseal dysplasia Maroteaux type, spondylometaphyseal dysplasia Kozlowski type, autosomal dominant brachyolmia, and familial digital arthropathy-brachydactyly, whereas the neuromuscular group includes congenital distal spinal muscular atrophy (SMA), scapuloperoneal SMA and Charcot-Marie-Tooth neuropathy type 2C with common manifestations of peripheral neuropathy, joint contractures, and respiratory system involvement. Apart from familial digital arthropathy-brachydactyly, skeletal dysplasia associated with TRPV4 pathogenic variants share some clinical features such as short stature with short trunk, spinal and pelvic changes with varying degrees of long bone involvement. Of note, there is considerable phenotypic overlap within and between both groups. Herein, we report on the clinical and molecular spectrum of 11 patients from six different families diagnosed with TRPV4-related disorders. This study yet represents the largest cohort of patients with TRPV4 variants from a single center in Turkey.
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Affiliation(s)
- Gizem Ürel-Demir
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
| | - Pelin Özlem Şimşek-Kiper
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - İbrahim Öncel
- Department of Pediatric Neurology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Göknur Haliloğlu
- Department of Pediatric Neurology, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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23
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Abstract
Congenital cataract is a challenging ophthalmological disorder which can cause severe visual loss. It can be diagnosed at birth or during the first year of life. Early diagnosis and treatment are crucial for the visual prognosis. It can be associated with various ocular and systemic abnormalities. Determining whether congenital cataract is isolated or associated with other pathology is an indispensable step for the prediction of potential vision as well as early diagnosis and treatment of conditions that can cause morbidity or mortality. Many genes have been identified in the molecular etiology of congenital cataract. Most mutations have been reported in the crystallin genes. Determination of the genetic cause may not only enable individualized genetic counseling but also help to identify concomitant ocular and/or systemic disorders depending on the characteristics of the genetic test used. Recently, next-generation sequencing in particular has become an evolving technology for determining the molecular etiology of congenital cataract and furthering our knowledge of the disease.
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Affiliation(s)
| | - Gülen Eda Utine
- Hacettepe University Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
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24
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Ürel-Demir G, Aydın B, Karaosmanoğlu B, Akgün-Doğan Ö, Taşkıran EZ, Şimşek-Kiper PÖ, Utine GE, Boduroğlu K. Two Siblings with Kaufman Oculocerebrofacial Syndrome Resembling Oculoauriculovertebral Spectrum. Mol Syndromol 2021; 12:106-111. [PMID: 34012380 DOI: 10.1159/000513078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/13/2020] [Indexed: 11/19/2022] Open
Abstract
Kaufman oculocerebrofacial syndrome is a rare autosomal recessive disorder which represents a phenotype mainly involving craniofacial and neurodevelopmental manifestations due to UBE3B gene mutations. The vast majority of the affected individuals exhibit microcephaly, eye abnormalities, and typical facial gestalt including blepharophimosis, ptosis, telecanthus, upslanting palpebral fissures, dysplastic ears, and micrognathia. We encountered 2 siblings in whom severe psychomotor delay, distinctive facial features, hearing loss, and respiratory distress were observed. Some clinical manifestations of the patients, including epibulbar dermoid, microtia, and multiple preauricular tags, were reminiscent of the oculoauriculovertebral spectrum. However, 2 affected siblings exhibited a similar clinical picture consisting of microcephaly, severe developmental and cognitive disabilities, failure to thrive, and dysmorphic features, which were not fully consistent with oculoauriculovertebral spectrum. Also, hypoplastic nails, considered as a core manifestation of Coffin-Siris syndrome, were present in our patients. Therefore, whole-exome sequencing was carried out in order to identify the underlying genetic alterations, contributing to the complex phenotype shared by the 2 siblings. A homozygous pathogenic mutation was found in both affected siblings in the UBE3B gene which caused Kaufman oculocerebrofacial syndrome. Kaufman oculocerebrofacial syndrome should be considered among the autosomal recessive causes of blepharophimosis-mental retardation syndromes, particularly in populations with a high rate of consanguineous marriages, even if there are dysmorphic facial features that are not typically associated with the phenotype.
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Affiliation(s)
- Gizem Ürel-Demir
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Büşra Aydın
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beren Karaosmanoğlu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özlem Akgün-Doğan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Zihni Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Gonc EN, Ozon ZA, Oguz S, Kabacam S, Taskiran EZ, Kiper POS, Utine GE, Alikasifoglu A, Kandemir N, Boduroglu OK, Alikasifoglu M. Genetic IGF1R defects: new cases expand the spectrum of clinical features. J Endocrinol Invest 2020; 43:1739-1748. [PMID: 32356191 DOI: 10.1007/s40618-020-01264-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/17/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE We aimed to identify the phenotypic variability of IGF1R defects in a cohort of short children with normal GH secretion gathered through the last decade. PATIENTS AND METHODS Fifty children (25 girls) with short stature and a basal/stimulated growth hormone (GH) over 10 ng/ml having either a low birth weight or microcephaly were enrolled. MLPA and then Sanger sequence analysis were performed to detect IGF1R defects. The auxological and metabolic evaluation were carried out in index cases and their first degree family members whenever available. RESULTS A total of seven (14%) IGF1R defects were detected. Two IGF1R deletions and five heterozygous variants (one frameshift, four missense) were identified. Three (likely) pathogenic, one VUS and one likely benign were classified by using ACMG. All children with IGF1R defects had a height < - 2.5SDS, birth weight < - 1.4SDS, and head circumference < - 1.36SDS. IGF-1 ranged from - 2.44 to 2.13 SDS. One child with a 15q terminal deletion had a normal phenotype and intelligence, whereas low IQ is a finding in a case with missense variant. Two parents who carried IGF1R mutations had diabetes mellitus, hypertension and hyperlipidemia, one of whom also had hypergonadotropic hypogonadism. CONCLUSION We found a deletion or variant in IGF1R in 14% of short children. Birth weight, head circumference, intelligence, dysmorphic features, IGF-1 levels and even height are not consistent among patients. Additionally, metabolic and gonadal complications may appear during adulthood, suggesting that patients should be followed into adulthood to monitor for these late complications.
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Affiliation(s)
- E N Gonc
- Department of Pediatric Endocrinology, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey.
| | - Z A Ozon
- Department of Pediatric Endocrinology, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - S Oguz
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - S Kabacam
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - E Z Taskiran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - P O S Kiper
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - G E Utine
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - A Alikasifoglu
- Department of Pediatric Endocrinology, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - N Kandemir
- Department of Pediatric Endocrinology, Hacettepe University Faculty of Medicine, 06100, Ankara, Turkey
| | - O K Boduroglu
- Department of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - M Alikasifoglu
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Abstract
Peters plus syndrome is a rare genetic condition wherein multiple systemic involvement with distinctive facial features are manifested, whilst the hallmark is Peters anomaly, occuring from anterior segment dysgenesis. Homozygous variants in the B3GLCT gene were identified to underlie this disorder. We here report on a onemonth- old female patient with typical features characteristic of Peters plus syndrome in whom a homozygous pathogenic mutation in the B3GLCT gene was detected.
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Affiliation(s)
- Gizem Ürel Demir
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Naz Güleray Lafcı
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Özlem Akgün Doğan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Yalici-Armagan B, Kabacam S, Taskiran ZE, Gököz Ö, Utine GE, Ersoy-Evans S. A novel mutation of keratin 5 in epidermolysis bullosa simplex with migratory circinate erythema. Pediatr Dermatol 2020; 37:358-361. [PMID: 31965605 DOI: 10.1111/pde.14087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Epidermolysis bullosa simplex migratory circinate erythema (EBS-Migr) is an uncommon subtype of EBS. We report a case of EBS-MIGR with a novel heterozygous pathogenic mutation in exon 9 (frameshift deletion c.1650delC) and likely benign heterozygous mutation in exon 2 (missense c.591C > A) of keratin 5. This novel pathogenic mutation in KRT5 expands the molecular spectrum of this rare subtype of EBS.
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Affiliation(s)
- Basak Yalici-Armagan
- Department of Dermatology and Venereology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Serkan Kabacam
- Department of Medical Genetics, Faculty of Medicine, Molecular Biologist, Hacettepe University, Ankara, Turkey
| | - Zihni Ekim Taskiran
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Özay Gököz
- Department of Pathology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sibel Ersoy-Evans
- Department of Dermatology and Venereology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Ürel-Demir G, Akgün-Doğan Ö, Oğuz S, Güleray-Lafcı N, Şimşek-Kiper PÖ, Eda Utine G, Alikaşifoğlu M, Boduroğlu K. Further Phenotypic Delineation of Partial Trisomy 17q and Partial Monosomy 20q due to Rare t(17;20). Mol Syndromol 2020; 11:38-42. [PMID: 32256300 PMCID: PMC7109379 DOI: 10.1159/000505141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2019] [Indexed: 11/19/2022] Open
Abstract
Copy number variations in subtelomeric regions of chromosomes 17 and 20 are associated with intellectual disability and various systemic manifestations. Microarray analysis allows identification of submicroscopic chromosomal abnormalities and is applicable to elucidate the etiology of cognitive impairment in approximately one-fifth of the cases. In the present study, we report on 3 male children from 2 sisters, who suffered from intellectual disability, facial dysmorphism, and epilepsy. Despite the initial suggestion of an X-linked inheritance, the condition was associated with 17q25.3 duplication and concomitant 20q13.33 deletion, as detected by microarray analysis. Coexistence of a deletion and a duplication suggests unbalanced segregation of a parental balanced translocation. Further investigations revealed maternal balanced translocations, which resulted in copy number aberrations in the children following unbalanced segregations. The work-up underlined the importance of genomic screening using microarrays as the first-tier diagnostic tool in intellectual disability, despite an apparent X-linked segregation in the pedigree.
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Affiliation(s)
- Gizem Ürel-Demir
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Ankara, Turkey
| | - Özlem Akgün-Doğan
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Ankara, Turkey
| | - Sümeyra Oğuz
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Naz Güleray-Lafcı
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | | | - Gülen Eda Utine
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University Ankara, Turkey
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Ceylan AC, Sahin I, Erdem HB, Kayhan G, Simsek-Kiper PO, Utine GE, Percin F, Boduroglu K, Alikasifoglu M. An eight-case 1q21 region series: novel aberrations and clinical variability with new features. J Intellect Disabil Res 2019; 63:548-557. [PMID: 30773728 DOI: 10.1111/jir.12592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/04/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Rearrangement of the 1q21 region of chromosome 1 manifests as multiple phenotypes, including microcephaly, intellectual disability, dysmorphic facial features, eye abnormalities, cardiac defects, genitourinary anomalies, autism spectrum disorder, psychiatric conditions and seizures. Herein, we describe eight patients with 1q21 deletion and duplication syndromes, and novel deletions and findings. METHODS Chromosomal microarray analysis was performed to identify the existence of copy number variation. Quantitative polymerase chain reaction was applied using specific primers for the control and 1q21 region of chromosome 1. Mutational analysis was performed in case 5 using direct genomic sequencing for exons 1-6 in RBM8A. RESULTS Copy number variation analysis identified seven deletions and one duplication of the 1q21 region in the eight patients. In addition, four variations were de novo, and two deletions are reported here for the first time. One of the cases (case 7) presents moderate intellectual disability and dysmorphic facial findings, whereas chromosomal microarray analysis showed that case 7 had an 889-kb deletion in the 1q21 proximal region (GPR89A, PDZK1, CD160, POLR3C and NBPF12). CONCLUSION Although the deletion in case 5 did not include the thrombocytopenia-absent radius syndrome critical region or the RBM8A gene, he had pectoral muscle hypoplasia, radius and humerus hypoplasia and short curved ribs, which are indicative of a potential thrombocytopenia-absent radius region modifier. The findings in case 7 suggest that the proximal part of the 1q21 microdeletion syndrome region might be very important for the onset of clinical manifestations. Some novel findings were observed in the presented cases, such as radius and humerus hypoplasia and brain stem hypoplasia. The presented findings expand the spectrum of 1q21 aberrations and provide evidence of genotype-phenotype correlations for this region.
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Affiliation(s)
- A C Ceylan
- Faculty of Medicine, Department of Medical Genetics, Hacettepe University, Ankara, Turkey
- Department of Medical Genetics, Ankara Ataturk Training and Research Hospital, Yildirim Beyazit University, Ankara, Turkey
| | - I Sahin
- Faculty of Medicine, Department of Medical Genetics, Ataturk University, Erzurum, Turkey
- Department of Medical Genetics, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - H B Erdem
- Faculty of Medicine, Department of Medical Genetics, Ataturk University, Erzurum, Turkey
- Department of Medical Genetics, Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey
| | - G Kayhan
- Faculty of Medicine, Department of Medical Genetics, Gazi University, Ankara, Turkey
| | - P O Simsek-Kiper
- Faculty of Medicine, Department of Pediatric Genetics, Hacettepe University, Ankara, Turkey
| | - G E Utine
- Faculty of Medicine, Department of Pediatric Genetics, Hacettepe University, Ankara, Turkey
| | - F Percin
- Faculty of Medicine, Department of Medical Genetics, Gazi University, Ankara, Turkey
| | - K Boduroglu
- Faculty of Medicine, Department of Medical Genetics, Hacettepe University, Ankara, Turkey
- Faculty of Medicine, Department of Pediatric Genetics, Hacettepe University, Ankara, Turkey
| | - M Alikasifoglu
- Faculty of Medicine, Department of Medical Genetics, Hacettepe University, Ankara, Turkey
- Faculty of Medicine, Department of Pediatric Genetics, Hacettepe University, Ankara, Turkey
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Akgün Doğan Ö, Ürel Demir G, Arslan U, Şimşek-Kiper PÖ, Utine GE, Alikaşifoğlu M, Boduroğlu K. Prenatal and Postnatal Follow-up in Trisomies 13 and 18: A 20-Year Experience in a Tertiary Center. Am J Perinatol 2018; 35:427-433. [PMID: 29112995 DOI: 10.1055/s-0037-1608632] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Trisomies 13 and 18 are among the most common autosomal aneuploidies associated with high mortality rates. Conventional management strategies offer to limit interventional support; however, some of the recent studies suggest that intervention does make a difference in terms of survival. STUDY DESIGN A retrospective cohort study was performed between January 1996 and January 2016, covering all cases with such trisomies. A total of 69 cases were reviewed for clinical aspects, outcome, and management strategies. RESULTS In almost all pregnancies with follow-up, at least one indication present for invasive testing (54/55). Invasive testing was not performed in 18.5% of such cases. All parents opted for termination in cases with prenatal diagnosis. None of the liveborns had prenatal diagnoses, thus, neonatal resuscitation and intensive care unit admission were not withheld in such infants. Major intervention was done in only one patient with full trisomy 13. Median survival for infants with full trisomies 13 and 18 was 36 and 60 days, respectively. Almost half the patients died within 1 month. CONCLUSION To which extent the major interventions should be withheld is an issue of debate in managing such infants; however, current approaches are subject to change, given the technological advances.
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Affiliation(s)
- Özlem Akgün Doğan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gizem Ürel Demir
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Umut Arslan
- Institute of Public Health, Hacettepe University, Ankara, Turkey
| | - Pelin Özlem Şimşek-Kiper
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Kaykı G, Güçer Ş, Akçören Z, Orhan D, Talim B, Yurdakök M, Yiğit Ş, Boduroğlu OK, Utine GE, Örgül G, Beksaç MS. Non-immune hydrops fetalis: A retrospective analysis of 151 autopsies performed at a single center. Turk J Pediatr 2018; 60:471-477. [PMID: 30968631 DOI: 10.24953/turkjped.2018.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Kaykı G, Güçer Ş, Akçören Z, Orhan D, Talim B, Yurdakök M, Yiğit Ş, Boduroğlu OK, Utine GE, Örgül G, Beksac MS. Non-immune hydrops fetalis: A retrospective analysis of 151 autopsies performed at a single center. Turk J Pediatr 2018; 60: 471-477. We retrospectively evaluated autopsies performed on 151 non-immune hydrops fetalis (NIHF) cases to determine the etiology and pathological findings. Further, cases identified between 1980 and 2004 were compared with those identified between 2005 and 2015 to investigate the improvement of diagnostic performance of our institution. The mean gestational age during the fetal autopsy was 25 weeks. There were 30 live-born infants in the study group. The etiology of NIHF could be determined in 91 cases (60.3%), while it remained undefined in remaining 60 cases. The most commonly associated pathological conditions were cardiovascular malformations (11.3%), followed by chromosomal abnormalities (9.3%). Prior to 20th gestation week, genetic anomalies and cystic hygromas were the most common etiological factors, and after 30 weeks of gestation, cardiac abnormalities were found to be the most common causes. With time, the rate of undefined cases decreased from 48.4% to 33.75%. NIHF is a complex medical condition necessitating a multidisciplinary management approach. Progress in molecular genetics and imaging techniques is expected to improve diagnostic performance for rapid and better identification.
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Affiliation(s)
- Gözdem Kaykı
- Departments of Pediatrics, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Şafak Güçer
- Division of Pediatric Pathology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Zuhal Akçören
- Division of Pediatric Pathology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Diclehan Orhan
- Division of Pediatric Pathology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Beril Talim
- Division of Pediatric Pathology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Murat Yurdakök
- Departments of Neonatology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Şule Yiğit
- Departments of Neonatology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Osman Koray Boduroğlu
- Departments of Genetics, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Departments of Genetics, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gökçen Örgül
- Division of Perinatology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - M Sinan Beksaç
- Division of Perinatology, Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Zengin-Akkuş P, Taşkıran EZ, Kabaçam S, Şimşek-Kiper PÖ, Haliloğlu G, Boduroğlu K, Utine GE. Clinical and molecular evaluation of 16 patients with rett syndrome. TurkJPediatr 2018; 60:1-9. [DOI: 10.24953/turkjped.2018.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bilgin B, Kabaçam S, Taşkıran E, Şimşek-Kiper PÖ, Alanay Y, Boduroğlu K, Utine GE. Epigenotype and phenotype correlations in patients with Beckwith-Wiedemann syndrome. Turk J Pediatr 2018; 60:506-513. [PMID: 30968633 DOI: 10.24953/turkjped.2018.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Bilgin B, Kabaçam S, Taşkıran E, Şimşek-Kiper PÖ, Alanay Y, Boduroğlu K, Utine GE. Epigenotype and phenotype correlations in patients with Beckwith-Wiedemann syndrome. Turk J Pediatr 2018; 60: 506-513. Beckwith-Wiedemann Syndrome (BWS) is one of the most common overgrowth syndromes. Cancer predisposition is an important feature of this clinically heterogeneous syndrome. Patients may have fetal and early childhood overgrowth, hemihyperplasia, macroglossia, facial dysmorphic features, abdominal wall defects, visceromegaly, and anomalies of the heart and the kidneys. Various previous investigations showed that heterogeneous molecular etiology may contribute to clinical variability and that epigenotype-phenotype correlations exist in BWS. This study was performed to detect the molecular etiology in 28 patients with BWS, to search for epigenotype-phenotype correlations and to provide appropriate individualized multidisciplinary approach. Four different molecular etiology groups were determined based on testing for copy number analysis and methylation status at 11p15. Sequencing for CDKN1C mutations were also performed. Groups were compared for various clinical findings. Differences between groups were not statistically significant owing to the small number of patients in individual groups. Statistical studies for epigenotype-phenotype correlations showed significance for only anterior ear lobe creases, visceromegaly and embryonal tumors. Additionally, one interesting patient had a mesenchymal tumor. Anticipating follow-up is clinically important in BWS.
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Affiliation(s)
- Burçak Bilgin
- Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Serkan Kabaçam
- Molecular Genetics Laboratory, Department of Pediatrics; Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ekim Taşkıran
- Department of Medical Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - Yasemin Alanay
- Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Division of Pediatric Genetics, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Utine GE, Şimşek-Kiper PÖ, Akgün-Doğan Ö, Ürel-Demir G, Alanay Y, Aktaş D, Boduroğlu K, Tunçbilek E, Alikaşifoğlu M. Fragile x-associated premature ovarian failure in a large Turkish cohort: Findings of Hacettepe Fragile X Registry. Eur J Obstet Gynecol Reprod Biol 2017; 221:76-80. [PMID: 29275276 DOI: 10.1016/j.ejogrb.2017.12.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/08/2017] [Accepted: 12/14/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To determine frequency of fragile X associated premature ovarian insufficiency (FXPOI) among Turkish premutation carriers. STUDY DESIGN FMR1 premutation is the single most common genetic cause of POI (FXPOI). Fragile X Registry at Hacettepe University has been reviewed for the frequency of FXPOI among female premutation carriers. Since 1991 when FMR1 testing was available, 760 individuals from 243 families have been registered. Actual data on menstrual status of female premutation carriers were gathered and analysed. RESULTS Among 314 premutation-bearing females in the cohort, 268 could be reached for an update of their menstrual history; 107 adults were 40 or younger and 156 were older than 40 years of age, whereas the remaining 5 patients were prepubertal. Among 263 postpubertal females with premutations, 90 women stopped menstruating before or at 40 years of age (premature ovarian failure - POF), constituting 34.2% of our cohort. Additionally, one carrier of a gray zone allele experienced FXPOI. History of twinning was present once in 18 women (5.7%) and twice in two women (0.6%), one of the latter interestingly bearing a full-mutation. CONCLUSIONS FXPOI rates in the present cohort are higher than those reported in other populations. Higher FXPOI rates in Turkish premutation carriers might be a reflection of younger mean menopause age and higher POI rates in otherwise healthy Turkish women. Since POI is much more frequent among premutation carriers than in general population, testing for CGG repeat expansions in FMR1 should be included in the work-up.
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Affiliation(s)
- Gülen Eda Utine
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey.
| | - Pelin Özlem Şimşek-Kiper
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Özlem Akgün-Doğan
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Gizem Ürel-Demir
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Yasemin Alanay
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey; Acibadem University, School of Medicine, Department of Pediatrics, Pediatric Genetics Unit, Istanbul, Turkey
| | - Dilek Aktaş
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Koray Boduroğlu
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Ergül Tunçbilek
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Department of Pediatric Genetics, Ankara, Turkey
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Hızarcıoğlu-Gülşen H, Kılıç E, Dominguez-Garrido E, Aydemir Y, Utine GE, Saltık-Temizel İN. Polyposis deserves a perfect physical examination for final diagnosis: Bannayan-Riley-Ruvalcaba syndrome. Turk J Pediatr 2017; 59:80-83. [PMID: 29168369 DOI: 10.24953/turkjped.2017.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Hızarcıoğlu-Gülşen H, Kılıç E, Dominguez-Garrido E, Aydemir Y, Utine GE, Saltık-Temizel İN. Polyposis deserves a perfect physical examination for final diagnosis: Bannayan-Riley-Ruvalcaba syndrome. Turk J Pediatr 2017; 59: 80-83. Bannayan-Riley-Ruvalcaba syndrome (BRRS) is a rare autosomal dominant inherited polyposis syndrome characterized by macrocephaly, lipomatosis, hemangiomatosis, intestinal polyposis and pigmented macules on penis. The mutation of the PTEN gene that is responsible for controlling cellular proliferation, migration and apoptosis clarifies the reason of tissue overgrowth in BRRS. Gastrointestinal tract involvement is seen 35-45% of the patients. Histologic features of polyps in BRRS resemble juvenile polyps. In this report, we describe a boy presenting with hematochezia and aggressive polyposis and finally was diagnosed as BRRS due to extra intestinal findings.
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Affiliation(s)
| | - Esra Kılıç
- Pediatric Genetics, Department of Pediatrics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | | | - Yusuf Aydemir
- Divisions of Pediatric Gastroenterology, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Pediatric Genetics, Department of Pediatrics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - İnci Nur Saltık-Temizel
- Divisions of Pediatric Gastroenterology, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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Ürel Demir G, Doğan ÖA, Şimşek Kiper PÖ, Utine GE, Boduroğlu K, Gucer S, Alikaşifoğlu M. Coexistence of Trisomy 13 and SRY (-) XX Ovotesticular Disorder of Sex Development. Fetal Pediatr Pathol 2017; 36:445-451. [PMID: 29220612 DOI: 10.1080/15513815.2017.1379039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Ovotesticular disorder of sex development (OT-DSD) is a rare disorder of sexual differentiation characterized by the presence of both testicular and ovarian tissue in an individual and the majority of cases have been reported with 46,XX karyotype. In 46,XX cases, testicular differentiation may occur due to the translocation of SRY to the X chromosome or to an autosome. CASE REPORT Herein, we present a female newborn with a combination of trisomy 13 and SRY (-) XX OT-DSD. CONCLUSION Trisomy 13 is a relatively common and well-known chromosomal disorder in which disorders of sexual differentiation are not frequent. In the absence of SRY, overexpression of pro-testis genes, or decreased expression of pro-ovarian/anti-testis genes have been suggested as underlying mechanisms of testicular formation. The findings in this patient were suggestive of an underlying genomic disorder associated with FGF9 and/or SPRY2.
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Affiliation(s)
| | | | | | | | | | - Safak Gucer
- a Hacettepe Universitesi Tip Fakultesi , Ankara , Turkey
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Doğan ÖA, Şimşek Kiper PÖ, Utine GE, Alikaşifoğlu M, Boduroğlu K. A Diagnosis to Consider in an Adult Patient with Facial Features and Intellectual Disability: Williams Syndrome. Korean J Fam Med 2017; 38:102-105. [PMID: 28360987 PMCID: PMC5371580 DOI: 10.4082/kjfm.2017.38.2.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 11/03/2022] Open
Abstract
Williams syndrome (OMIM #194050) is a rare, well-recognized, multisystemic genetic condition affecting approximately 1/7,500 individuals. There are no marked regional differences in the incidence of Williams syndrome. The syndrome is caused by a hemizygous deletion of approximately 28 genes, including ELN on chromosome 7q11.2. Prenatal-onset growth retardation, distinct facial appearance, cardiovascular abnormalities, and unique hypersocial behavior are among the most common clinical features. Here, we report the case of a patient referred to us with distinct facial features and intellectual disability, who was diagnosed with Williams syndrome at the age of 37 years. Our aim is to increase awareness regarding the diagnostic features and complications of this recognizable syndrome among adult health care providers. Williams syndrome is usually diagnosed during infancy or childhood, but in the absence of classical findings, such as cardiovascular anomalies, hypercalcemia, and cognitive impairment, the diagnosis could be delayed. Due to the multisystemic and progressive nature of the syndrome, accurate diagnosis is critical for appropriate care and screening for the associated morbidities that may affect the patient's health and well-being.
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Affiliation(s)
- Özlem Akgün Doğan
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University, Ankara, Turkey
| | | | - Gülen Eda Utine
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University, Ankara, Turkey
| | - Koray Boduroğlu
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University, Ankara, Turkey
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Çetinkaya A, Taşkıran E, Soyer T, Şimşek-Kiper PÖ, Utine GE, Tunçbilek G, Boduroğlu K, Alikaşifoğlu M. Dermal fibroblast transcriptome indicates contribution of WNT signaling pathways in the pathogenesis of Apert syndrome. Turk J Pediatr 2017; 59:619-624. [PMID: 30035392 DOI: 10.24953/turkjped.2017.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Çetinkaya A, Taşkıran E, Soyer T, Şimşek-Kiper PÖ, Utine GE, Tunçbilek G, Boduroğlu K, Alikaşifoğlu M. Dermal fibroblast transcriptome indicates contribution of WNT signaling pathways in the pathogenesis of Apert syndrome. Turk J Pediatr 2017; 59: 619-624. Cranial sutures are unossified connective tissue structures between the cranial bones, which allow expansion of these bones during development. Premature ossification of these structures is called craniosynostosis. Apert syndrome is a well-defined genetic syndrome, which is characterized by craniosynostosis and arises as a result of two missense mutations in Fibroblast Growth Factor Receptor, type 2 gene (FGFR2). In this study, differentially expressed genes in dermal fibroblasts from individuals with Apert syndrome and controls were investigated to identify important pathways in the pathogenesis of Apert syndrome. For this purpose, primary skin fibroblast cultures obtained from 3 individuals with Apert syndrome and 3 controls without craniosynostosis were compared by transcriptome microarray, GeneChip Human Genome U133 Plus 2.0. As a result, 181 genes were shown to be differentially expressed between experimental groups. Among these, 10 genes, which significantly differ in Apert syndrome fibroblasts compared to controls, were shown to be involved in a common interaction network and have common Gene ontology (GO) biological processes terms. COL11A1, COMP, CPXM2, ITGA8, MGF and TNC are differentially expressed genes that have GO terms associated with extracellular matrix (ECM) organization, while FRZB, SFRP2 and WNT2 are involved in WNT signaling pathway. Reorganization of ECM and changes in WNT signaling pathway show that Apert syndrome primary fibroblast cultures may have an increased potential for bone differentiation. The results of this study support craniosynostosis in Apert syndrome may be the result of fast and early differentiation of connective tissue along the sutures.
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Affiliation(s)
| | - Ekim Taşkıran
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Tutku Soyer
- Department of Pediatric Surgery, aculty of Medicine, Hacettepe University, Ankara, Turkey
| | | | - Gülen Eda Utine
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gökhan Tunçbilek
- Department of Plastic Reconstructive and Aesthetic Surgery, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Department of Medical Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Taylan Şekeroğlu H, Utine GE, Alikaşifoğlu M. A Baseline Algorithm for Molecular Diagnosis of Genetic Eye Diseases: Ophthalmologist's Perspective. Turk J Ophthalmol 2016; 46:299-300. [PMID: 28050330 PMCID: PMC5177790 DOI: 10.4274/tjo.59375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/23/2015] [Indexed: 12/01/2022] Open
Affiliation(s)
| | - Gülen Eda Utine
- Hacettepe University Faculty of Medicine, Department of Pediatrics, Division of Pediatric Genetics, Ankara, Turkey
| | - Mehmet Alikaşifoğlu
- Hacettepe University Faculty of Medicine, Department of Medical Genetics, Ankara, Turkey
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41
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Angius A, Uva P, Buers I, Oppo M, Puddu A, Onano S, Persico I, Loi A, Marcia L, Höhne W, Cuccuru G, Fotia G, Deiana M, Marongiu M, Atalay HT, Inan S, El Assy O, Smit LME, Okur I, Boduroglu K, Utine GE, Kılıç E, Zampino G, Crisponi G, Crisponi L, Rutsch F. Bi-allelic Mutations in KLHL7 Cause a Crisponi/CISS1-like Phenotype Associated with Early-Onset Retinitis Pigmentosa. Am J Hum Genet 2016; 99:236-45. [PMID: 27392078 PMCID: PMC5005468 DOI: 10.1016/j.ajhg.2016.05.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/19/2016] [Indexed: 11/29/2022] Open
Abstract
Crisponi syndrome (CS)/cold-induced sweating syndrome type 1 (CISS1) is a very rare autosomal-recessive disorder characterized by a complex phenotype with high neonatal lethality, associated with the following main clinical features: hyperthermia and feeding difficulties in the neonatal period, scoliosis, and paradoxical sweating induced by cold since early childhood. CS/CISS1 can be caused by mutations in cytokine receptor-like factor 1 (CRLF1). However, the physiopathological role of CRLF1 is still poorly understood. A subset of CS/CISS1 cases remain yet genetically unexplained after CRLF1 sequencing. In five of them, exome sequencing and targeted Sanger sequencing identified four homozygous disease-causing mutations in kelch-like family member 7 (KLHL7), affecting the Kelch domains of the protein. KLHL7 encodes a BTB-Kelch-related protein involved in the ubiquitination of target proteins for proteasome-mediated degradation. Mono-allelic substitutions in other domains of KLHL7 have been reported in three families affected by a late-onset form of autosomal-dominant retinitis pigmentosa. Retinitis pigmentosa was also present in two surviving children reported here carrying bi-allelic KLHL7 mutations. KLHL7 mutations are thus associated with a more severe phenotype in recessive than in dominant cases. Although these data further support the pathogenic role of KLHL7 mutations in a CS/CISS1-like phenotype, they do not explain all their clinical manifestations and highlight the high phenotypic heterogeneity associated with mutations in KLHL7.
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Affiliation(s)
- Andrea Angius
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Paolo Uva
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, 09010 Pula, Italy
| | - Insa Buers
- Department of General Pediatrics, Münster University Children's Hospital, 48149 Münster, Germany
| | - Manuela Oppo
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy; Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, 07100 Sassari, Italy
| | - Alessandro Puddu
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Stefano Onano
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy; Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, 07100 Sassari, Italy
| | - Ivana Persico
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Angela Loi
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Loredana Marcia
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy; Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, 07100 Sassari, Italy
| | - Wolfgang Höhne
- Cologne Center for Genomics (CCG), University of Cologne, 50931 Cologne, Germany
| | - Gianmauro Cuccuru
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, 09010 Pula, Italy
| | - Giorgio Fotia
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, 09010 Pula, Italy
| | - Manila Deiana
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Mara Marongiu
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy
| | - Hatice Tuba Atalay
- Department of Ophthalmology, Gazi University School of Medicine, 06560 Ankara, Turkey
| | - Sibel Inan
- Opthalmology Department of Afyon Kocatepe University, 03200 Afyon, Turkey
| | - Osama El Assy
- Pediatric Department-SCBU, Dibba Hospital, 11414 Dibba Al Fujaira, United Arab of Emirates
| | - Leo M E Smit
- Haga Ziekenhuis Den Haag, Department of Neurology, Leyweg 275, 2545 CH Den Haag, the Netherlands
| | - Ilyas Okur
- Department of Pediatric Nutrition and Metabolism, Gazi University Medical School, 06500 Ankara, Turkey
| | - Koray Boduroglu
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, 06100 Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, 06100 Ankara, Turkey
| | - Esra Kılıç
- Pediatric Genetics, Pediatric Hematology Oncology Research & Training Hospital, 06110 Ankara, Turkey
| | - Giuseppe Zampino
- Istituto di Pediatria, Policlinico "A. Gemelli," Università Cattolica del S. Cuore, 00168 Rome, Italy
| | | | - Laura Crisponi
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, 09042 Cagliari, Italy.
| | - Frank Rutsch
- Department of General Pediatrics, Münster University Children's Hospital, 48149 Münster, Germany
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Kilic E, Cetinkaya A, Utine GE, Boduroğlu K. A Diagnosis to Consider in Intellectual Disability: Mowat-Wilson Syndrome. J Child Neurol 2016; 31:913-7. [PMID: 26809768 DOI: 10.1177/0883073815627884] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/13/2015] [Indexed: 01/14/2023]
Abstract
Mowat-Wilson syndrome is a multiple congenital anomaly and intellectual disability syndrome characterized by a unique face and various other structural and functional anomalies. The condition is caused by de novo heterozygous mutations or deletions in ZEB2 gene located at 2q22. ZEB2 encodes Sip1 protein, which acts during central nervous system development as an important transcription factor. Herein, we report on 3 novel mutations in 6 patients with the syndrome, with an overview of corresponding clinical findings. Growth retardation and Hirschsprung disease were less common in the present cohort. One patient with a novel mutation p.Y489X had no associated anomalies except the characteristic facial and neurobehavioral phenotype. Reporting new patients with novel mutations would contribute to better delineation of the syndrome and would help clinicians establish formal diagnostic criteria and genotype-phenotype correlations.
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Affiliation(s)
- Esra Kilic
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Arda Cetinkaya
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Gülen Eda Utine
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Koray Boduroğlu
- Department of Pediatrics, Division of Pediatric Genetics, Hacettepe University, Faculty of Medicine, Ankara, Turkey
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Kurt-Sukur ED, Simsek-Kiper PO, Utine GE, Boduroglu K, Alanay Y. Experience of a skeletal dysplasia registry in Turkey: A five-years retrospective analysis. Am J Med Genet A 2015; 167A:2065-74. [DOI: 10.1002/ajmg.a.37122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 04/04/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Eda Didem Kurt-Sukur
- Pediatric Genetics Unit, Department of Pediatrics; Ihsan Doğramacı Children's Hospital, Hacettepe School of Medicine; Ankara Turkey
| | - Pelin Ozlem Simsek-Kiper
- Pediatric Genetics Unit, Department of Pediatrics; Ihsan Doğramacı Children's Hospital, Hacettepe School of Medicine; Ankara Turkey
| | - Gülen Eda Utine
- Pediatric Genetics Unit, Department of Pediatrics; Ihsan Doğramacı Children's Hospital, Hacettepe School of Medicine; Ankara Turkey
| | - Koray Boduroglu
- Pediatric Genetics Unit, Department of Pediatrics; Ihsan Doğramacı Children's Hospital, Hacettepe School of Medicine; Ankara Turkey
| | - Yasemin Alanay
- Pediatric Genetics Unit, Department of Pediatrics; Ihsan Doğramacı Children's Hospital, Hacettepe School of Medicine; Ankara Turkey
- Pediatric Genetics, Department of Pediatrics; Acibadem University School of Medicine; İstanbul Turkey
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44
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Kilic E, Yigit G, Utine GE, Wollnik B, Mihci E, Nur BG, Boduroglu K. A novel mutation in RNU4ATAC in a patient with microcephalic osteodysplastic primordial dwarfism type I. Am J Med Genet A 2015; 167A:919-21. [PMID: 25735804 DOI: 10.1002/ajmg.a.36955] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 12/21/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Esra Kilic
- Faculty of Medicine, Division of Pediatric Genetics, Hacettepe University, Ankara, Turkey
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Piras R, Chiappe F, Torraca IL, Buers I, Usala G, Angius A, Akin MA, Basel-Vanagaite L, Benedicenti F, Chiodin E, El Assy O, Feingold-Zadok M, Guibert J, Kamien B, Kasapkara ÇS, Kılıç E, Boduroğlu K, Kurtoglu S, Manzur AY, Onal EE, Paderi E, Roche CH, Tümer L, Unal S, Utine GE, Zanda G, Zankl A, Zampino G, Crisponi G, Crisponi L, Rutsch F. Expanding the Mutational Spectrum ofCRLF1in Crisponi/CISS1 Syndrome. Hum Mutat 2014; 35:424-33. [DOI: 10.1002/humu.22522] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 01/24/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Roberta Piras
- Istituto di Ricerca Genetica e Biomedica; Consiglio Nazionale delle Ricerche; Cagliari Italy
- Department of Public Health and Clinical and Molecular Medicine; University of Cagliari; Cagliari Italy
| | - Francesca Chiappe
- Istituto di Ricerca Genetica e Biomedica; Consiglio Nazionale delle Ricerche; Cagliari Italy
| | - Ilaria La Torraca
- Istituto di Pediatria, Policlinico “A. Gemelli”; Università Cattolica del S. Cuore; Rome Italy
| | - Insa Buers
- Department of General Pediatrics; Münster University Children's Hospital; Münster Germany
| | - Gianluca Usala
- Istituto di Ricerca Genetica e Biomedica; Consiglio Nazionale delle Ricerche; Cagliari Italy
| | - Andrea Angius
- Istituto di Ricerca Genetica e Biomedica; Consiglio Nazionale delle Ricerche; Cagliari Italy
- CRS4 Center for Advanced Studies, Research and Development in Sardinia, Laboratorio di Bioinformatica; Parco tecnologico della Sardegna; Pula Italy
| | - Mustafa Ali Akin
- Department of Pediatrics, Medical Faculty; Erciyes University; Kayseri Turkey
| | - Lina Basel-Vanagaite
- Pediatric Genetics, Schneider Children's Medical Center of Israel, and Raphael Recanati Genetic Institute; Rabin Medical Center, Beilinson Hospital; Petah Tikva 49100 Israel
- Sackler School of Medicine; Tel Aviv University; Tel Aviv 69978 Israel
- Felsenstein Medical Research Center, Tel Aviv University, Rabin Medical Center; Beilinson Campus; Petah Tikva 49100 Israel
| | - Francesco Benedicenti
- Genetic Counseling Service, Department of Pediatrics; Regional Hospital of Bolzano; Bolzano Italy
| | - Elisabetta Chiodin
- Neonatal Intensive Care Unit, Department of Pediatrics; Regional Hospital of Bolzano; Bolzano Italy
| | - Osama El Assy
- Pediatric Department-NICU; Al-Hada Military Hospital; Taif Saudi Arabia
| | - Michal Feingold-Zadok
- Pediatric Genetics, Schneider Children's Medical Center of Israel, and Raphael Recanati Genetic Institute; Rabin Medical Center, Beilinson Hospital; Petah Tikva 49100 Israel
| | - Javier Guibert
- Servicio de Pediatría; Complejo Hospitalario de Navarra; Pamplona Spain
| | - Benjamin Kamien
- Queensland Health Pathology; Royal Brisbane Hospital; Herston Australia
| | | | - Esra Kılıç
- Hacettepe University School of Medicine, Ihsan Dogramaci Children's Hospital; Department of Pediatric Genetics; Ankara Turkey
| | - Koray Boduroğlu
- Hacettepe University School of Medicine, Ihsan Dogramaci Children's Hospital; Department of Pediatric Genetics; Ankara Turkey
| | - Selim Kurtoglu
- Department of Pediatrics, Medical Faculty; Erciyes University; Kayseri Turkey
| | - Adnan Y Manzur
- The Dubowitz Neuromuscular Centre, Department of Neurosciences; Great Ormond Hospital for Children; London United Kingdom
| | - Eray Esra Onal
- Gazi University Hospital, Department of Pediatrics; Division of Neonatology Besevler; Ankara Turkey
| | - Enrica Paderi
- Unità Operativa Pediatria -Neonatologia - Nido; Ospedale San Martino; Oristano Italy
| | | | - Leyla Tümer
- Gazi University Hospital; Pediatric Metabolism and Nutrition; Ankara Turkey
| | - Sezin Unal
- Gazi University Hospital, Department of Pediatrics; Division of Neonatology Besevler; Ankara Turkey
| | - Gülen Eda Utine
- Hacettepe University School of Medicine, Ihsan Dogramaci Children's Hospital; Department of Pediatric Genetics; Ankara Turkey
| | - Giovanni Zanda
- Unità Operativa Pediatria -Neonatologia - Nido; Ospedale San Martino; Oristano Italy
| | - Andreas Zankl
- Discipline of Genetic Medicine; The University of Sydney; Sydney Australia
- Academic Department of Medical Genetics; The Children's Hospital at Westmead; Sydney Australia
| | - Giuseppe Zampino
- Istituto di Pediatria, Policlinico “A. Gemelli”; Università Cattolica del S. Cuore; Rome Italy
| | | | - Laura Crisponi
- Istituto di Ricerca Genetica e Biomedica; Consiglio Nazionale delle Ricerche; Cagliari Italy
| | - Frank Rutsch
- Department of General Pediatrics; Münster University Children's Hospital; Münster Germany
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Simsek-Kiper PO, Utine GE, Volkan-Salanci B, Alanay Y, Aktaş D, Alikaşifoğlu M, Boduroğlu K, Tuncbilek E. Parental factors in prenatal decision making and the impact of prenatal genetic counseling: a study on Turkish families. Genet Couns 2014; 25:53-62. [PMID: 24783656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE This study explored the social factors affecting prenatal decision making, the impact of genetic counseling on prenatal decision making, and how genetic counseling is perceived by Turkish women. METHOD A standardized questionnaire was given to 231 patients, before and after genetic counseling, at Hacettepe University Ihsan Dogramaci Children's Hospital in 2007-2008. RESULTS The level of education was an important factor both in prenatal decision making and in the patients' perception of genetic counseling. Decisions of pregnancy termination differed by geographic region of referral and history of healthy children but the differences were not statistically significant. The decisions were not influenced by poor obstetric history, number and sex of previous children, and disability of previous children. CONCLUSION The level of education and the geographic region of referral in Turkey had an effect on the prenatal decisions and on the amount of prenatal genetic counseling received by the individuals.
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Utine GE, Akpınar B, Arslan U, Kiper PÖŞ, Volkan-Salancı B, Alanay Y, Aktaş D, Haliloğlu G, Oğuz KK, Boduroğlu K, Alikaşifoğlu M. Neurochemical evaluation of brain function with 1H magnetic resonance spectroscopy in patients with fragile X syndrome. Am J Med Genet A 2013; 164A:99-105. [PMID: 24259304 DOI: 10.1002/ajmg.a.36207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 08/12/2013] [Indexed: 11/06/2022]
Abstract
Fragile X syndrome (FXS) is the most common hereditary disorder of intellectual disability. Cognitive deficits involve executive function, attention, learning and memory. Advanced neuroimaging techniques are available, and (1)H magnetic resonance spectroscopy (MRS) can be used as a complementary method to MR imaging to understand disease processes in brain, by in vivo demonstration of brain metabolites. MRS was performed in 13 male patients with FXS full mutation, and 13 age- and sex-matched healthy controls. FXS diagnosis was based on clinical evaluation, followed by detection of FMR1 full mutation. Axial T2 TSE, sagittal T1 SE and coronal 3D MPRAGE images were obtained for both morphological imaging and voxel localization. Following evaluation of conventional images, multivoxel MRS (CSI) through supraventricular white matter and single voxel MRS (svs) with an intermediate echo time (TE:135 ms) from the cerebellar vermis were performed. Choline/Creatine (Cho/Cr), N-acetyl aspartate/Creatine (NAA/Cr), and Choline/N-acetyl aspartate (Cho/NAA) ratios were examined at right frontal (RF), left frontal (LF), right parietal (RP), left parietal (LP), and cerebellar vermian (C) white matter. Statistical analyses were done using t-test and Mann-Whitney U tests. A statistically significant difference was observed in RP Cho/NAA ratio (cell membrane marker/neuroaxonal marker), FXS patients having lower levels than controls (P = 0.016). The results should be evaluated cautiously in parallel to consequences in brain metabolism leading to alterations in neurotransmitter levels, osmoregulation, energy metabolism and oxidative stress response described in animal models. MRS may serve to define a metabolic signature and biomarkers associated with FXS.
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Affiliation(s)
- G E Utine
- Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey; Department of Pediatric Genetics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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48
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Iida A, Simsek-Kiper PÖ, Mizumoto S, Hoshino T, Elcioglu N, Horemuzova E, Geiberger S, Yesil G, Kayserili H, Utine GE, Boduroglu K, Watanabe S, Ohashi H, Alanay Y, Sugahara K, Nishimura G, Ikegawa S. Clinical and radiographic features of the autosomal recessive form of brachyolmia caused by PAPSS2 mutations. Hum Mutat 2013; 34:1381-6. [PMID: 23824674 DOI: 10.1002/humu.22377] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 06/25/2013] [Indexed: 01/13/2023]
Abstract
Brachyolmia is a heterogeneous skeletal dysplasia characterized by generalized platyspondyly without significant long-bone abnormalities. Based on the mode of inheritance and radiographic features, at least three types of brachyolmia have been postulated. We recently identified an autosomal recessive form of brachyolmia that is caused by loss-of-function mutations of PAPSS2, the gene encoding PAPS (3'-phosphoadenosine 5'-phosphosulfate) synthase 2. To understand brachyolmia caused by PAPSS2 mutations (PAPSS2-brachyolmia), we extended our PAPSS2 mutation analysis to 13 patients from 10 families and identified homozygous or compound heterozygous mutations in all. Nine different mutations were found: three splice donor-site mutations, three missense mutations, and three insertion or deletion mutations within coding regions. In vitro enzyme assays showed that the missense mutations were also loss-of-function mutations. Phenotypic characteristics of PAPSS2-brachyolmia include short-trunk short stature, normal intelligence and facies, spinal deformity, and broad proximal interphalangeal joints. Radiographic features include platyspondyly with rectangular vertebral bodies and irregular end plates, broad ilia, metaphyseal changes of the proximal femur, including short femoral neck and striation, and dysplasia of the short tubular bones. PAPSS2-brachyolmia includes phenotypes of the conventional clinical concept of brachyolmia, the Hobaek and Toledo types, and is associated with abnormal androgen metabolism.
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Affiliation(s)
- Aritoshi Iida
- Laboratory for Bone and Joint Diseases, Center for Integrative Medical Science, RIKEN, Tokyo, Japan
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Kılıç E, Utine GE, Boduroğlu K. A case of Sotos syndrome with 5q35 microdeletion and novel clinical findings. Turk J Pediatr 2013; 55:207-209. [PMID: 24192683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sotos syndrome is a multiple anomaly syndrome characterized by pre- and postnatal overgrowth with advanced bone age, macrocephaly, developmental delay, and distinctive facial phenotype. Autosomal dominant mutations and deletions of the nuclear receptor set domain gene (NSD1), which is located at chromosome 5q35, are responsible for most of the cases. We describe a six-year old boy who had tall stature, macrocephaly, typical facial appearance, learning disability, megaloencephaly, corpus callosum dysgenesis, and colpocephaly. Although he had normal bone age, the diagnosis of Sotos syndrome was suspected with these clinical findings, and fluorescence in situ hybridization analysis of the patient showed a heterozygous deletion covering the NSD1 region in the 5q35 locus. A brief overview of the syndrome is presented.
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Affiliation(s)
- Esra Kılıç
- Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
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Simsek-Kiper PO, Topaloglu R, Sahin Y, Utine GE, Boduroglu K. Mucolipidosis type III in an adolescent presenting with atypical facial features and skeletal deformities. Genet Couns 2013; 24:7-12. [PMID: 23610860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mucolipidosis type III (MLIII) (MIM# 252600) is an uncommon autosomal recessive disorder that results from deficiency of the multimeric enzyme, UDP-N-acetylglucosamine-1-phosphotransferase. The enzymatic defect results in deficiencies of lysosomal degradative enzymes with concomitant intracellular accumulation of both partly degraded glycosaminoglycans and sphingolipids leading to clinical manifestations such as short stature, developmental delay and other structural abnormalities. The diagnosis is challenging since musculoskeletal presentation may mimic some of the rheumatic and metabolic disorders. We herein report on a 13-year-old adolescent who was admitted to our rheumatology clinic because of progressive joint stiffness and deformities of her hands. The clinical and radiological findings led us to the diagnosis of MLIII despite negative urinary aminoglycosyaminoglycans. Therefore we decided to check for the presence of elevated activities of alpha-mannosidase and beta-hexosaminidase A+B in the plasma which was actually the case and confirmed the clinical diagnosis ofMLIII.
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Affiliation(s)
- P O Simsek-Kiper
- Pediatric Genetics Unit, Ihsan Dogramaci Children's Hospital, Hacettepe University, Ankara, Turkey.
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