Stickler Syndrome and Homoeopathy
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Joint Hypermobility Syndromes
10/17/2017 Hereditary Disorders of Connective Tissue: Overview CLAIR A. FRANCOMANO, M.D. HARVEY INSTITUTE FOR HUMAN GENETICS BALTIMORE, MD Disclosures I have no conflicts to disclose 1 10/17/2017 Joint Hypermobility Seen in over 140 clinical syndromes listed in Online Mendelian Inheritance in Man (OMIM) Congenital anomaly syndromes Short stature syndromes Hereditary disorders of connective tissue Connective Tissue Supports and Protects Bones Collagen Fibers Cartilage Elastic Fibers Tendons Mucopolysaccharides Ligaments 2 10/17/2017 Fibrillar Collagens Major structural components of the extracellular matrix Include collagen types I, II, III, V, IX, and XI Trimeric molecules (three chains) May be made up of three identical or genetically distinct chains, called alpha chains Fibrillar Collagens Biochemical Society Transactions (1999) , - - www.biochemsoctrans.org 3 10/17/2017 Hereditary Disorders of Connective Tissue Marfan syndrome Loeys-Dietz syndrome Stickler syndrome Osteogenesis Imperfecta Ehlers-Danlos syndromes Marfan Syndrome Aneurysmal dilation of the ascending aorta Dislocation of the ocular lenses Tall stature Scoliosis Pectus deformity Arachnodactyly (long, narrow fingers and toes) Dolicostenomelia (tall, thin body habitus) Caused by mutations in Fibrillin-1 4 10/17/2017 Marfan Syndrome Loeys-Dietz Syndrome Aortic dilation with dissection Tortuous blood vessels Craniofacial features Hypertelorism Malar hypoplasia Cleft palate or bifid uvula Caused by mutations in TGFBR1 and TGFBR2 as well as -
Identi Cation of Three Novel Homozygous Variants in COL9A3
Identication of three novel homozygous variants in COL9A3 causing autosomal-recessive Stickler Syndrome Aboulfazl Rad University of Tübingen: Eberhard Karls Universitat Tubingen Maryam Naja Universitätsklinikum Freiburg: Universitatsklinikum Freiburg Fatemeh Suri Shahid Beheshti University Soheila Abedini Mashhad University of Medical Sciences Stephen Loum Eberhard Karls Universitat Tubingen Ehsan Ghayoor Karimiani Mashhad University of Medical Sciences Narsis Daftarian Shahid Beheshti University David Murphy UCL: University College London Mohammad Doosti Mashhad University of Medical Sciences Afrooz Moghaddasi Shahid Beheshti University Hamid Ahmadieh Shahid Beheshti University Hamideh Sabbaghi Shahid Beheshti University Mohsen Rajati Mashhad University of Medical Sciences Ghaem Hospital Narges Hashemi Mashhad University of Medical Sciences Barbara Vona Eberhard Karls Universitat Tubingen Miriam Schmidts ( [email protected] ) Universitatsklinikum Freiburg https://orcid.org/0000-0002-1714-6749 Research Article Keywords: autosomal recessive Stickler syndrome, COL9A3, collagen, hearing loss, retinal detachment Posted Date: May 17th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-526117/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/10 Abstract Background: Stickler syndrome (STL) is a rare, clinically and molecularly heterogeneous connective tissue disorder. Pathogenic variants occurring in a variety of genes cause STL, mainly inherited in an autosomal -
A Study of the Clinical and Radiological Features in a Cohort of 93 Patients with a COL2A1 Mutation Causing Spondyloepiphyseal D
RESEARCH ARTICLE A Study of the Clinical and Radiological Features in a Cohort of 93 Patients with a COL2A1 Mutation Causing Spondyloepiphyseal Dysplasia Congenita or a Related Phenotype Paulien A. Terhal,1* Rutger Jan A. J. Nievelstein,2 Eva J. J. Verver,3 Vedat Topsakal,3 Paula van Dommelen,4 Kristien Hoornaert,5 Martine Le Merrer,6 Andreas Zankl,7 Marleen E. H. Simon,8 Sarah F. Smithson,9 Carlo Marcelis,10 Bronwyn Kerr,11 Jill Clayton-Smith,11 Esther Kinning,12 Sahar Mansour,13 Frances Elmslie,13 Linda Goodwin,14 Annemarie H. van der Hout,15 Hermine E. Veenstra-Knol,15 Johanna C. Herkert,15 Allan M. Lund,16 Raoul C. M. Hennekam,17 Andre´ Me´garbane´,18 Melissa M. Lees,19 Louise C. Wilson,19 Alison Male,19 Jane Hurst,19,20 Yasemin Alanay,21 Go¨ran Annere´n,22 Regina C. Betz,23 Ernie M. H. F. Bongers,10 Valerie Cormier-Daire,6 Anne Dieux,24 Albert David,25 Mariet W. Elting,26 Jenneke van den Ende,27 Andrew Green,28 Johanna M. van Hagen,26 Niels Thomas Hertel,29 Muriel Holder-Espinasse,24,30 Nicolette den Hollander,31 Tessa Homfray, Hanne D. Hove,32 Susan Price,20 Annick Raas-Rothschild,33 Marianne Rohrbach,34 Barbara Schroeter,35 Mohnish Suri,36 Elizabeth M. Thompson,37 Edward S. Tobias,38 Annick Toutain,39 Maaike Vreeburg,40 Emma Wakeling,41 Nine V. Knoers,1 Paul Coucke,42,43 and Geert R. Mortier27,43 1Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands 2Department of Radiology, University Medical Centre Utrecht, Utrecht, The Netherlands 3Department of Otorhinolaryngology and Head and Neck Surgery, -
The Epidemiology of Deafness
Downloaded from http://perspectivesinmedicine.cshlp.org/ on September 25, 2021 - Published by Cold Spring Harbor Laboratory Press The Epidemiology of Deafness Abraham M. Sheffield1 and Richard J.H. Smith2,3,4,5 1Department of Otolaryngology, Head and Neck Surgery, University of Iowa, Iowa City, Iowa 52242 2Molecular Otolaryngology and Renal Research Laboratories (MORL), Department of Otolaryngology, University of Iowa, Iowa City, Iowa 52242 3Department of Molecular Physiology & Biophysics, University of Iowa, Iowa City, Iowa 52242 4Department of Pediatrics, University of Iowa, Iowa City, Iowa 52242 5Department of Internal Medicine, University of Iowa, Iowa City, Iowa 52242 Correspondence: [email protected] Hearing loss is the most common sensory deficit worldwide. It affects ∼5% of the world population, impacts people of all ages, and exacts a significant personal and societal cost. This review presents epidemiological data on hearing loss. We discuss hereditary hearing loss, complex hearing loss with genetic and environmental factors, and hearing loss that is more clearly related to environment. We also discuss the disparity in hearing loss across the world, with more economically developed countries having overall lower rates of hearing loss compared with developing countries, and the opportunity to improve diagnosis, preven- tion, and treatment of this disorder. earing loss is the most common sensory refer to people with mild-to-moderate (and Hdeficit worldwide, affecting more than half sometimes severe) hearing loss, whereas the a billion people (Smith et al. 2005; Wilson et al. term “deaf” (lower case “d”) is more commonly 2017). Normal hearing is defined as having hear- reserved for those with severe or profound hear- ing thresholds of ≤25 dB in both ears. -
Vitreoretinopathy with Phalangeal Epiphyseal Dysplasia, a Type II
661 J Med Genet: first published as 10.1136/jmg.39.9.661 on 1 September 2002. Downloaded from SHORT REPORT Vitreoretinopathy with phalangeal epiphyseal dysplasia, a type II collagenopathy resulting from a novel mutation in the C-propeptide region of the molecule A J Richards, J Morgan,PWPBearcroft, E Pickering, M J Owen, P Holmans, N Williams, C Tysoe, F M Pope, M P Snead, H Hughes ............................................................................................................................. J Med Genet 2002;39:661–665 quadrant of some patients. Although the vitreous did not A large family with dominantly inherited rhegmatogenous exhibit the congenital membraneous anomaly characteristic retinal detachment, premature arthropathy, and develop- of Stickler syndrome type 1,15–17 the architecture was strikingly ment of phalangeal epiphyseal dysplasia, resulting in abnormal, with absence of the usual lamellar array. Affected brachydactyly was linked to COL2A1, the gene encoding subjects had a spherical mean refractive error of –1.46 diopt- α pro 1(II) collagen. Mutational analysis of the gene by res (SD 1.5), which was not significantly greater than that in exon sequencing identified a novel mutation in the unaffected subjects (mean refractive error –0.71, SD 0.99, C-propeptide region of the molecule. The glycine to aspar- p=0.13, Mann-Whitney test). The axial length was slightly tic acid change occurred in a region that is highly greater in affected eyes (mean 24.6 mm, SD 0.73) compared conserved in all fibrillar collagen molecules. The resulting with unaffected eyes (mean 23.8 mm, SD 1.1, p=0.008, t test). phenotype does not fit easily into pre-existing subgroups of A single affected subject, whose axial length had increased to the type II collagenopathies, which includes spondyloepi- 33.5 mm, following retinal detachment surgery, distorted any physeal dysplasia, and the Kniest, Strudwick, and Stickler apparent variation in myopia between affected and unaffected dysplasias. -
A Review of Hypermobility Syndromes and Chronic Or Recurrent Musculoskeletal Pain in Children Marco Cattalini1, Raju Khubchandani2 and Rolando Cimaz3*
Cattalini et al. Pediatric Rheumatology (2015) 13:40 DOI 10.1186/s12969-015-0039-3 REVIEW Open Access When flexibility is not necessarily a virtue: a review of hypermobility syndromes and chronic or recurrent musculoskeletal pain in children Marco Cattalini1, Raju Khubchandani2 and Rolando Cimaz3* Abstract Chronic or recurrent musculoskeletal pain is a common complaint in children. Among the most common causes for this problem are different conditions associated with hypermobility. Pediatricians and allied professionals should be well aware of the characteristics of the different syndromes associated with hypermobility and facilitate early recognition and appropriate management. In this review we provide information on Benign Joint Hypermobility Syndrome, Ehlers-Danlos Syndrome, Marfan Syndrome, Loeys-Dietz syndrome and Stickler syndrome, and discuss their characteristics and clinical management. Keywords: Hyperlaxity, Musculoskeletal pain, Ehlers-Danlos, Marfan, Loeys-Dietz, Stickler Introduction Review Chronic or recurrent musculoskeletal pain is a common Benign joint hypermobility syndrome (BJHS) complaint in children, affecting between 10 % and 20 % Children with hypermobile joints by definition display a of children. It is one of the more frequent reasons for range of movement that is considered excessive, taking seeking a primary care physician’sevaluationandpos- into consideration the age, gender and ethnic background sible rheumatology referral [1, 2]. A wide variety of of the individual. It is estimated that at least 10–15 % of non-inflammatory conditions may cause musculoskel- normal children have hypermobile joints and the term etal pain in the pediatric age, and the most common joint hypermobility syndrome (JHS) is reserved to the causes seen by paediatric rheumatologists include cases of joint hypermobility associated with symptoms conditions associated with hypermobility. -
Genetic Disorder
Genetic disorder Single gene disorder Prevalence of some single gene disorders[citation needed] A single gene disorder is the result of a single mutated gene. Disorder Prevalence (approximate) There are estimated to be over 4000 human diseases caused Autosomal dominant by single gene defects. Single gene disorders can be passed Familial hypercholesterolemia 1 in 500 on to subsequent generations in several ways. Genomic Polycystic kidney disease 1 in 1250 imprinting and uniparental disomy, however, may affect Hereditary spherocytosis 1 in 5,000 inheritance patterns. The divisions between recessive [2] Marfan syndrome 1 in 4,000 and dominant types are not "hard and fast" although the [3] Huntington disease 1 in 15,000 divisions between autosomal and X-linked types are (since Autosomal recessive the latter types are distinguished purely based on 1 in 625 the chromosomal location of Sickle cell anemia the gene). For example, (African Americans) achondroplasia is typically 1 in 2,000 considered a dominant Cystic fibrosis disorder, but children with two (Caucasians) genes for achondroplasia have a severe skeletal disorder that 1 in 3,000 Tay-Sachs disease achondroplasics could be (American Jews) viewed as carriers of. Sickle- cell anemia is also considered a Phenylketonuria 1 in 12,000 recessive condition, but heterozygous carriers have Mucopolysaccharidoses 1 in 25,000 increased immunity to malaria in early childhood, which could Glycogen storage diseases 1 in 50,000 be described as a related [citation needed] dominant condition. Galactosemia -
Blueprint Genetics Comprehensive Skeletal Dysplasias and Disorders
Comprehensive Skeletal Dysplasias and Disorders Panel Test code: MA3301 Is a 251 gene panel that includes assessment of non-coding variants. Is ideal for patients with a clinical suspicion of disorders involving the skeletal system. About Comprehensive Skeletal Dysplasias and Disorders This panel covers a broad spectrum of skeletal disorders including common and rare skeletal dysplasias (eg. achondroplasia, COL2A1 related dysplasias, diastrophic dysplasia, various types of spondylo-metaphyseal dysplasias), various ciliopathies with skeletal involvement (eg. short rib-polydactylies, asphyxiating thoracic dysplasia dysplasias and Ellis-van Creveld syndrome), various subtypes of osteogenesis imperfecta, campomelic dysplasia, slender bone dysplasias, dysplasias with multiple joint dislocations, chondrodysplasia punctata group of disorders, neonatal osteosclerotic dysplasias, osteopetrosis and related disorders, abnormal mineralization group of disorders (eg hypopohosphatasia), osteolysis group of disorders, disorders with disorganized development of skeletal components, overgrowth syndromes with skeletal involvement, craniosynostosis syndromes, dysostoses with predominant craniofacial involvement, dysostoses with predominant vertebral involvement, patellar dysostoses, brachydactylies, some disorders with limb hypoplasia-reduction defects, ectrodactyly with and without other manifestations, polydactyly-syndactyly-triphalangism group of disorders, and disorders with defects in joint formation and synostoses. Availability 4 weeks Gene Set Description -
A Comprehensive Review on Inherited Sensorineural Hearing Loss and Their Syndromes
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 14 August 2020 doi:10.20944/preprints202008.0308.v1 Manuscript (Review Article) A comprehensive review on inherited Sensorineural Hearing Loss and their syndromes Authors Muhammad Noman 1, Shazia Anwer Bukhari 1, Muhammad Tahir 2, & Shehbaz Ali 3* Author’s information 1 Department of Biochemistry, Molecular Biology laboratory, Government College, University, Faisalabad, 38000, Pakistan. 2 Department of Oncology, Allied Teaching Hospital Faisalabad, Faisalabad Medical University, Faisalabad, 38000, Pakistan. 3 Department of Biosciences and Technology, Khwaja Fareed University of Engineering and information technology, Rahim Yar Khan, Punjab, Pakistan. *Correspondence: Shehbaz Ali: [email protected] Tel: +92-333-7477407 Abstract Hearing impairment is an immensely diagnosed genetic cause, 5% of the total world population effects with different kind of congenital hearing loss (HL). In third-world countries or countries where consanguineous marriages are more common the frequency rate of genetic disorders are at its zenith. Approximately, the incidence of hearing afflictions is ostensibly 7-8:1000 individuals whereas it is estimated that about 466 million peoples suffer with significant HL, and of theses deaf cases 34 million are children’s up to March, 2020. Several genes and colossal numbers of pathogenic variants cause hearing impairment, which aided in next-generation with recessive, dominant or X-linked inheritance traits. This review highlights on syndromic and non-syndromic HL (SHL and NSHL), and categorized as conductive, sensorineural and mixed HL, which having autosomal dominant and recessive, and X-linked or mitochondrial mode of inheritance. Many hundred genes involved in HL are reported, and their mutation spectrum becomes very wide. -
Discover Dysplasias Gene Panel
Discover Dysplasias Gene Panel Discover Dysplasias tests 109 genes associated with skeletal dysplasias. This list is gathered from various sources, is not designed to be comprehensive, and is provided for reference only. This list is not medical advice and should not be used to make any diagnosis. Refer to lab reports in connection with potential diagnoses. Some genes below may also be associated with non-skeletal dysplasia disorders; those non-skeletal dysplasia disorders are not included on this list. Skeletal Disorders Tested Gene Condition(s) Inheritance ACP5 Spondyloenchondrodysplasia with immune dysregulation (SED) AR ADAMTS10 Weill-Marchesani syndrome (WMS) AR AGPS Rhizomelic chondrodysplasia punctata type 3 (RCDP) AR ALPL Hypophosphatasia AD/AR ANKH Craniometaphyseal dysplasia (CMD) AD Mucopolysaccharidosis type VI (MPS VI), also known as Maroteaux-Lamy ARSB syndrome AR ARSE Chondrodysplasia punctata XLR Spondyloepimetaphyseal dysplasia with joint laxity type 1 (SEMDJL1) B3GALT6 Ehlers-Danlos syndrome progeroid type 2 (EDSP2) AR Multiple joint dislocations, short stature and craniofacial dysmorphism with B3GAT3 or without congenital heart defects (JDSCD) AR Spondyloepimetaphyseal dysplasia (SEMD) Thoracic aortic aneurysm and dissection (TADD), with or without additional BGN features, also known as Meester-Loeys syndrome XL Short stature, facial dysmorphism, and skeletal anomalies with or without BMP2 cardiac anomalies AD Acromesomelic dysplasia AR Brachydactyly type A2 AD BMPR1B Brachydactyly type A1 AD Desbuquois dysplasia CANT1 Multiple epiphyseal dysplasia (MED) AR CDC45 Meier-Gorlin syndrome AR This list is gathered from various sources, is not designed to be comprehensive, and is provided for reference only. This list is not medical advice and should not be used to make any diagnosis. -
REVIEW ARTICLE Genetic Disorders of the Skeleton: a Developmental Approach
Am. J. Hum. Genet. 73:447–474, 2003 REVIEW ARTICLE Genetic Disorders of the Skeleton: A Developmental Approach Uwe Kornak and Stefan Mundlos Institute for Medical Genetics, Charite´ University Hospital, Campus Virchow, Berlin Although disorders of the skeleton are individually rare, they are of clinical relevance because of their overall frequency. Many attempts have been made in the past to identify disease groups in order to facilitate diagnosis and to draw conclusions about possible underlying pathomechanisms. Traditionally, skeletal disorders have been subdivided into dysostoses, defined as malformations of individual bones or groups of bones, and osteochondro- dysplasias, defined as developmental disorders of chondro-osseous tissue. In light of the recent advances in molecular genetics, however, many phenotypically similar skeletal diseases comprising the classical categories turned out not to be based on defects in common genes or physiological pathways. In this article, we present a classification based on a combination of molecular pathology and embryology, taking into account the importance of development for the understanding of bone diseases. Introduction grouping of conditions that have a common molecular origin but that have little in common clinically. For ex- Genetic disorders affecting the skeleton comprise a large ample, mutations in COL2A1 can result in such diverse group of clinically distinct and genetically heterogeneous conditions as lethal achondrogenesis type II and Stickler conditions. Clinical manifestations range from neonatal dysplasia, which is characterized by moderate growth lethality to only mild growth retardation. Although they retardation, arthropathy, and eye disease. It is now be- are individually rare, disorders of the skeleton are of coming increasingly clear that several distinct classifi- clinical relevance because of their overall frequency. -
Whole Exome Sequencing Gene Package Skeletal Dysplasia, Version 2.1, 31-1-2020
Whole Exome Sequencing Gene package Skeletal Dysplasia, Version 2.1, 31-1-2020 Technical information DNA was enriched using Agilent SureSelect DNA + SureSelect OneSeq 300kb CNV Backbone + Human All Exon V7 capture and paired-end sequenced on the Illumina platform (outsourced). The aim is to obtain 10 Giga base pairs per exome with a mapped fraction of 0.99. The average coverage of the exome is ~50x. Duplicate and non-unique reads are excluded. Data are demultiplexed with bcl2fastq Conversion Software from Illumina. Reads are mapped to the genome using the BWA-MEM algorithm (reference: http://bio-bwa.sourceforge.net/). Variant detection is performed by the Genome Analysis Toolkit HaplotypeCaller (reference: http://www.broadinstitute.org/gatk/). The detected variants are filtered and annotated with Cartagenia software and classified with Alamut Visual. It is not excluded that pathogenic mutations are being missed using this technology. At this moment, there is not enough information about the sensitivity of this technique with respect to the detection of deletions and duplications of more than 5 nucleotides and of somatic mosaic mutations (all types of sequence changes). HGNC approved Phenotype description including OMIM phenotype ID(s) OMIM median depth % covered % covered % covered gene symbol gene ID >10x >20x >30x ABCC9 Atrial fibrillation, familial, 12, 614050 601439 65 100 100 95 Cardiomyopathy, dilated, 1O, 608569 Hypertrichotic osteochondrodysplasia, 239850 ACAN Short stature and advanced bone age, with or without early-onset osteoarthritis