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Bloch-Zupan A, Rey T, Jimenez-Armijo A, Kawczynski M, Kharouf N, Dure-Molla MDL, Noirrit E, Hernandez M, Joseph-Beaudin C, Lopez S, Tardieu C, Thivichon-Prince B, Dostalova T, Macek M, Alloussi ME, Qebibo L, Morkmued S, Pungchanchaikul P, Orellana BU, Manière MC, Gérard B, Bugueno IM, Laugel-Haushalter V. Amelogenesis imperfecta: Next-generation sequencing sheds light on Witkop's classification. Front Physiol 2023; 14:1130175. [PMID: 37228816 PMCID: PMC10205041 DOI: 10.3389/fphys.2023.1130175] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/06/2023] [Indexed: 05/27/2023] Open
Abstract
Amelogenesis imperfecta (AI) is a heterogeneous group of genetic rare diseases disrupting enamel development (Smith et al., Front Physiol, 2017a, 8, 333). The clinical enamel phenotypes can be described as hypoplastic, hypomineralized or hypomature and serve as a basis, together with the mode of inheritance, to Witkop's classification (Witkop, J Oral Pathol, 1988, 17, 547-553). AI can be described in isolation or associated with others symptoms in syndromes. Its occurrence was estimated to range from 1/700 to 1/14,000. More than 70 genes have currently been identified as causative. Objectives: We analyzed using next-generation sequencing (NGS) a heterogeneous cohort of AI patients in order to determine the molecular etiology of AI and to improve diagnosis and disease management. Methods: Individuals presenting with so called "isolated" or syndromic AI were enrolled and examined at the Reference Centre for Rare Oral and Dental Diseases (O-Rares) using D4/phenodent protocol (www.phenodent.org). Families gave written informed consents for both phenotyping and molecular analysis and diagnosis using a dedicated NGS panel named GenoDENT. This panel explores currently simultaneously 567 genes. The study is registered under NCT01746121 and NCT02397824 (https://clinicaltrials.gov/). Results: GenoDENT obtained a 60% diagnostic rate. We reported genetics results for 221 persons divided between 115 AI index cases and their 106 associated relatives from a total of 111 families. From this index cohort, 73% were diagnosed with non-syndromic amelogenesis imperfecta and 27% with syndromic amelogenesis imperfecta. Each individual was classified according to the AI phenotype. Type I hypoplastic AI represented 61 individuals (53%), Type II hypomature AI affected 31 individuals (27%), Type III hypomineralized AI was diagnosed in 18 individuals (16%) and Type IV hypoplastic-hypomature AI with taurodontism concerned 5 individuals (4%). We validated the genetic diagnosis, with class 4 (likely pathogenic) or class 5 (pathogenic) variants, for 81% of the cohort, and identified candidate variants (variant of uncertain significance or VUS) for 19% of index cases. Among the 151 sequenced variants, 47 are newly reported and classified as class 4 or 5. The most frequently discovered genotypes were associated with MMP20 and FAM83H for isolated AI. FAM20A and LTBP3 genes were the most frequent genes identified for syndromic AI. Patients negative to the panel were resolved with exome sequencing elucidating for example the gene involved ie ACP4 or digenic inheritance. Conclusion: NGS GenoDENT panel is a validated and cost-efficient technique offering new perspectives to understand underlying molecular mechanisms of AI. Discovering variants in genes involved in syndromic AI (CNNM4, WDR72, FAM20A … ) transformed patient overall care. Unravelling the genetic basis of AI sheds light on Witkop's AI classification.
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Affiliation(s)
- Agnes Bloch-Zupan
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
- Université de Strasbourg, Institut d’études avancées (USIAS), Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filiére Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), IN-SERM U1258, CNRS- UMR7104, Illkirch, France
- Eastman Dental Institute, University College London, London, United Kingdom
| | - Tristan Rey
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), IN-SERM U1258, CNRS- UMR7104, Illkirch, France
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d’Alsace, Strasbourg, France
| | - Alexandra Jimenez-Armijo
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), IN-SERM U1258, CNRS- UMR7104, Illkirch, France
| | - Marzena Kawczynski
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filiére Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
| | - Naji Kharouf
- Université de Strasbourg, Laboratoire de Biomatériaux et Bioingénierie, Inserm UMR_S 1121, Strasbourg, France
| | | | - Muriel de La Dure-Molla
- Rothschild Hospital, Public Assistance-Paris Hospitals (AP-HP), Reference Center for Rare Oral and Den-tal Diseases (O-Rares), Paris, France
| | - Emmanuelle Noirrit
- Centre Hospitalier Universitaire (CHU) Rangueil, Toulouse, Competence Center for Rare Oral and Den-tal Diseases, Toulouse, France
| | - Magali Hernandez
- Centre Hospitalier Régional Universitaire de Nancy, Université de Lorraine, Competence Center for Rare Oral and Dental Diseases, Nancy, France
| | - Clara Joseph-Beaudin
- Centre Hospitalier Universitaire de Nice, Competence Center for Rare Oral and Dental Diseases, Nice, France
| | - Serena Lopez
- Centre Hospitalier Universitaire de Nantes, Competence Center for Rare Oral and Dental Diseases, Nantes, France
| | - Corinne Tardieu
- APHM, Hôpitaux Universitaires de Marseille, Hôpital Timone, Competence Center for Rare Oral and Dental Diseases, Marseille, France
| | - Béatrice Thivichon-Prince
- Centre Hospitalier Universitaire de Lyon, Competence Center for Rare Oral and Dental Diseases, Lyon, France
| | | | - Tatjana Dostalova
- Department of Stomatology (TD) and Department of Biology and Medical Genetics (MM) Charles University 2nd Faculty of Medicine and Motol University Hospital, Prague, Czechia
| | - Milan Macek
- Department of Stomatology (TD) and Department of Biology and Medical Genetics (MM) Charles University 2nd Faculty of Medicine and Motol University Hospital, Prague, Czechia
| | | | - Mustapha El Alloussi
- Faculty of Dentistry, International University of Rabat, CReSS Centre de recherche en Sciences de la Santé, Rabat, Morocco
| | - Leila Qebibo
- Unité de génétique médicale et d’oncogénétique, CHU Hassan II, Fes, Morocco
| | | | | | - Blanca Urzúa Orellana
- Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Marie-Cécile Manière
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filiére Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
| | - Bénédicte Gérard
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d’Alsace, Strasbourg, France
| | - Isaac Maximiliano Bugueno
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
- Hôpitaux Universitaires de Strasbourg (HUS), Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filiére Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Strasbourg, France
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), IN-SERM U1258, CNRS- UMR7104, Illkirch, France
| | - Virginie Laugel-Haushalter
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), IN-SERM U1258, CNRS- UMR7104, Illkirch, France
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d’Alsace, Strasbourg, France
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2
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Strub M, Chkili M, Clauss F, Manière MC, Wagner D, Rohmer O. [Representation of the oral sphere in medical comics, the child's perception]. Soins Pediatr Pueric 2022; 43:39-42. [PMID: 35902151 DOI: 10.1016/j.spp.2022.03.009] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Medical comics are a suitable educational tool for paediatric populations. The emotions conveyed by the characters should not evoke negative feelings, which could then be associated with care or caregivers. The eyes and mouth are the first areas of the face to be analysed. One study attempted to assess the ability of children to perceive the emotions of one of the protagonists through the representation of their mouth.
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Affiliation(s)
- Marion Strub
- Faculté de chirurgie dentaire, université de Strasbourg, 8 rue Sainte-Élisabeth, 67000 Strasbourg, France; Pôle de médecine et chirurgie bucco-dentaires, Hôpitaux universitaires de Strasbourg, 1 place de l'Hôpital, 67000 Strasbourg, France; Institut national de la santé et de la recherche médicale, UMR 1260, 1 rue Eugène-Boeckel, 67000 Strasbourg, France.
| | - Manal Chkili
- Faculté de chirurgie dentaire, université de Strasbourg, 8 rue Sainte-Élisabeth, 67000 Strasbourg, France
| | - François Clauss
- Faculté de chirurgie dentaire, université de Strasbourg, 8 rue Sainte-Élisabeth, 67000 Strasbourg, France; Pôle de médecine et chirurgie bucco-dentaires, Hôpitaux universitaires de Strasbourg, 1 place de l'Hôpital, 67000 Strasbourg, France; Institut national de la santé et de la recherche médicale, UMR 1260, 1 rue Eugène-Boeckel, 67000 Strasbourg, France
| | - Marie-Cécile Manière
- Faculté de chirurgie dentaire, université de Strasbourg, 8 rue Sainte-Élisabeth, 67000 Strasbourg, France; Pôle de médecine et chirurgie bucco-dentaires, Hôpitaux universitaires de Strasbourg, 1 place de l'Hôpital, 67000 Strasbourg, France; Institut national de la santé et de la recherche médicale, UMR 1260, 1 rue Eugène-Boeckel, 67000 Strasbourg, France
| | - Delphine Wagner
- Faculté de chirurgie dentaire, université de Strasbourg, 8 rue Sainte-Élisabeth, 67000 Strasbourg, France; Pôle de médecine et chirurgie bucco-dentaires, Hôpitaux universitaires de Strasbourg, 1 place de l'Hôpital, 67000 Strasbourg, France; ICube, UMR 7357, Centre national de la recherche scientifique, 300 boulevard Sébastien-Brant, 67412 Illkirch, France
| | - Odile Rohmer
- Faculté de psychologie, université de Strasbourg, 12 rue Goethe, 67000 Strasbourg, France; Laboratoire de psychologie des cognitions, EA 4440, 12 rue Goethe, 67000 Strasbourg, France
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3
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El Chehadeh S, Legrand A, Stoetzel C, Geoffroy V, Billon C, Adham S, Jeunemaître X, Jaussaud R, Muller J, Schaefer E, Benistan K, Gaertner S, Bloch-Zupan A, Courval A, Manière MC, Petit C, Bursztejn AC, Bal L, Reyre A, Chammas A, Busa T, Dollfus H, Lipsker D. Periodontal (formerly type VIII) Ehlers-Danlos syndrome: Description of 13 novel cases and expansion of the clinical phenotype. Clin Genet 2021; 100:206-212. [PMID: 33890303 DOI: 10.1111/cge.13972] [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] [Received: 12/12/2020] [Revised: 04/18/2021] [Indexed: 01/08/2023]
Abstract
Periodontal Ehlers-Danlos syndrome (pEDS) is a rare condition caused by pathogenic variants in the C1R and C1S genes, encoding subunits C1r and C1s of the first component of the classical complement pathway. It is characterized by early-onset periodontitis with premature tooth loss, pretibial hyperpigmentation and skin fragility. Rare arterial complications have been reported, but venous insufficiency is rarely described. Here we report 13 novel patients carrying heterozygous pathogenic variants in C1R and C1S including three novel C1S variants (c.962G > C, c.961 T > G and c.961 T > A). In addition to the pEDS phenotype, three patients and one relative displayed widespread venous insufficiency leading to persistent varicose leg ulcers. One patient suffered an intracranial aneurysm with familial vascular complications including thoracic and abdominal aortic aneurysm and dissection and intracranial aneurysm rupture. This work confirms that vascular complications can occur, although they are not frequent, which leads us to propose to carry out a first complete non-invasive vascular evaluation at the time of the diagnosis in pEDS patients. However, larger case series are needed to improve our understanding of the link between complement pathway activation and connective tissue alterations observed in these patients, and to better assess the frequency, type and consequences of the vascular complications.
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Affiliation(s)
- Salima El Chehadeh
- Service de Génétique Médicale, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France.,Laboratoire de Génétique Médicale, UMRS_1112, Institut de Génétique Médicale d'Alsace (IGMA), Université de Strasbourg et INSERM, Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS-UMR7104, Université de Strasbourg, Illkirch-Graffenstaden, France
| | - Anne Legrand
- INSERM, U970, Paris Centre de Recherche Cardiovasculaire, Université de Paris, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, UMRS_1112, Institut de Génétique Médicale d'Alsace (IGMA), Université de Strasbourg et INSERM, Strasbourg, France
| | - Véronique Geoffroy
- Laboratoire de Génétique Médicale, UMRS_1112, Institut de Génétique Médicale d'Alsace (IGMA), Université de Strasbourg et INSERM, Strasbourg, France
| | - Clarisse Billon
- INSERM, U970, Paris Centre de Recherche Cardiovasculaire, Université de Paris, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Salma Adham
- Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Xavier Jeunemaître
- INSERM, U970, Paris Centre de Recherche Cardiovasculaire, Université de Paris, Paris, France.,Centre de Référence des Maladies Vasculaires Rares, AP-HP, Hôpital Européen Georges Pompidou, Paris, France
| | - Roland Jaussaud
- Département de Médecine Interne Immunologie Clinique, CHRU de Nancy et Université de Lorraine, Nancy, France
| | - Jean Muller
- Laboratoire de Génétique Médicale, UMRS_1112, Institut de Génétique Médicale d'Alsace (IGMA), Université de Strasbourg et INSERM, Strasbourg, France.,Laboratoire de Diagnostic Génétique, Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Strasbourg, France
| | - Elise Schaefer
- Service de Génétique Médicale, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Karelle Benistan
- Centre de Référence des Syndromes d'Ehlers-Danlos non Vasculaires, Hôpital Raymond Poincaré, Garches, Assistance Publique Hôpitaux de Paris, Garches, France.,UMR U1179 INSERM, Université Versailles Saint-Quentin, Montigny-le-Bretonneux, France
| | - Sébastien Gaertner
- Service des Maladies Vasculaires - Hypertension Artérielle, Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Strasbourg, France.,Regenerative Nanomedicine, INSERM, UMR 1260, FMTS, Strasbourg, France
| | - Agnès Bloch-Zupan
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS-UMR7104, Université de Strasbourg, Illkirch-Graffenstaden, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Hôpital Civil, Centre de Référence des Maladies Rares Orales et Dentaires, O-Rares, Filière Santé Maladies Rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Aymeric Courval
- Pôle de Médecine et Chirurgie Bucco-Dentaires, Hôpital Civil, Centre de Référence des Maladies Rares Orales et Dentaires, O-Rares, Filière Santé Maladies Rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marie-Cécile Manière
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS-UMR7104, Université de Strasbourg, Illkirch-Graffenstaden, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Hôpital Civil, Centre de Référence des Maladies Rares Orales et Dentaires, O-Rares, Filière Santé Maladies Rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Catherine Petit
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Hôpital Civil, Centre de Référence des Maladies Rares Orales et Dentaires, O-Rares, Filière Santé Maladies Rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,INSERM, UMR 1260 'Osteoarticular and Dental Regenerative Nanomedicine', Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Anne-Claire Bursztejn
- Clinique Dermatologique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Service de Dermatologie, Hôpitaux de Brabois, CHU de Nancy, Vandœuvre-lès-Nancy, France
| | - Laurence Bal
- Timone Aortic Center, Department of Vascular Surgery, Timone Hospital, APHM, Marseille, France
| | - Anthony Reyre
- Service de Neuroradiologie Interventionnelle, CHU de Marseille, Hôpital La Timone, Marseille, France
| | - Agathe Chammas
- Service de radiologie, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Tiffany Busa
- Département de Génétique Médicale, CHU de Marseille, Hôpital La Timone, Marseille, France
| | - Hélène Dollfus
- Service de Génétique Médicale, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France.,Laboratoire de Génétique Médicale, UMRS_1112, Institut de Génétique Médicale d'Alsace (IGMA), Université de Strasbourg et INSERM, Strasbourg, France.,Filière SENSGENE, Centre de Référence Pour les Affections Rares en Génétique Ophtalmologique, CARGO, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Dan Lipsker
- Clinique Dermatologique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Faculté de Médecine, Université de Strasbourg, Strasbourg, France
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4
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Mogenot M, Hein-Halbgewachs L, Goetz C, Ouamara N, Droz-Desprez D, Strazielle C, Albecker S, Mengus B, Strub M, Manière MC, Richardin P, Wang S, Piga G, Dalstein A, Anastasio D. Efficacy, tolerability, and safety of an innovative medical device for improving oral accessibility during oral examination in special-needs patients: A multicentric clinical trial. PLoS One 2020; 15:e0239898. [PMID: 32986784 PMCID: PMC7521731 DOI: 10.1371/journal.pone.0239898] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/23/2020] [Indexed: 11/30/2022] Open
Abstract
Background People with special needs have high unmet oral healthcare needs, partly because dentists find it difficult to access their oral cavity. The Oral Accessibility Spatula aims to improve oral accessibility. This prospective multicenter interventional open-label non-randomized patient-self-controlled trial assessed the ability of the spatula to improve the oral accessibility of special-needs patients during dental examinations. Methods The cohort was a convenience sample of minor and adult patients with special needs due to physical, intellectual, and/or behavioral disorders who underwent dental check-up/treatment in five French tertiary hospitals/private clinics in 2016–2018 and evinced some (Venham-Score = 2–4) but not complete (Venham-Score = 5) resistance to oral examination. After inclusion, patients underwent oral examination without the spatula and then immediately thereafter oral examination with the spatula. Primary outcome was Oral Accessibility Score (0–12 points; higher scores indicate visualization and probing of the tooth sectors). Secondary outcomes were patient toleration (change in Venham-Score relative to first examination), safety, and Examiner Satisfaction Score (0–10; low scores indicate unsatisfactory examination). Results The 201 patients were mostly non-elderly adults (18–64 years, 65%) but also included children (21%), adolescents (11%), and aged patients (3%). One-quarter, half, and one-quarter had Venham-Score = 2, 3, and 4 at inclusion, respectively. The spatula significantly improved Oral Accessibility Score (4.8 to 10.8), Venham-Score (3.1 to 2.6), and Examiner Satisfaction Score (3.4 to 7.2) (all p<0.001). There were no severe spatula-related adverse events. Conclusion The spatula significantly improved oral access, was safe and well-tolerated by the patients, and markedly improved oral examination quality.
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Affiliation(s)
- Mathieu Mogenot
- Department of Odontology, Metz-Thionville Regional Hospital, Bel-Air Hospital, Thionville, France
| | | | - Christophe Goetz
- Clinical Research Support Unit, Metz-Thionville Regional Hospital, Mercy Hospital, Metz, France
| | - Nadia Ouamara
- Clinical Research Support Unit, Metz-Thionville Regional Hospital, Mercy Hospital, Metz, France
| | | | | | - Sylvie Albecker
- Handident Alsace Network, St François Clinic, Haguenau, France
| | - Brigitte Mengus
- Handident Alsace Network, St François Clinic, Haguenau, France
| | - Marion Strub
- Department of Odontology, Strasbourg Regional University Hospital, Strasbourg, France
| | - Marie-Cécile Manière
- Department of Odontology, Strasbourg Regional University Hospital, Strasbourg, France
| | - Pascal Richardin
- Department of Odontology, Metz-Thionville Regional Hospital, Mercy Hospital, Metz, France
| | - Stéphane Wang
- Department of Odontology, Metz-Thionville Regional Hospital, Mercy Hospital, Metz, France
| | - Giuseppa Piga
- Clinical Research Support Unit, Metz-Thionville Regional Hospital, Mercy Hospital, Metz, France
| | - Amélie Dalstein
- Department of Odontology, Emile-Durkenheim Hospital, Epinal, France
| | - Daniel Anastasio
- Department of Odontology, Metz-Thionville Regional Hospital, Bel-Air Hospital, Thionville, France
- * E-mail:
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5
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Friedlander L, Berdal A, Boizeau P, Licht BA, Manière MC, Picard A, Azzis O, Vazquez MP, Alberti C, Molla MDLD. Oral health related quality of life of children and adolescents affected by rare orofacial diseases: a questionnaire-based cohort study. Orphanet J Rare Dis 2019; 14:124. [PMID: 31164137 PMCID: PMC6549379 DOI: 10.1186/s13023-019-1109-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 05/27/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rare diseases affecting the teeth, the oral cavity and the face are numerous, each of them present specific characteristics, and is a life-long condition. The aim of the study was to assess the association between Oral health-related quality of life (OHRQoL), and demographic characteristics, clinical and dental factors, and psycho-social characteristics to investigate that oral symptoms are not the main factors underlying a decrease in OHRQoL. MATERIAL AND METHODS We conducted a national cohort study in French centres for rare diseases (RD) specialized in orofacial diseases. The inclusion criteria were: to have received care in RD centres over the last 5 years (2012-2017) and to have been between 6 and 17 years of age on September 1, 2017. Patients were invited to answer a questionnaire composed of socio-demographic, clinical and dental questions, psychosocial questions and then fill in the Child-OIDP Index. At the end of the questionnaire, a free space was left for the patient to add a verbatim comment to provide qualitative data. Thematic analysis was used to analyze the verbatim answers. RESULTS Complete data were available for 110 patients. The sample included 44.5% boys and 55.5% girls. Ages ranged from 6 to 17 years old and 68.2% were between 6 to 12 years old and 31.8% were between 13 and 17 years old. Factor associated with a lower OHRQoL were: being a girl (p = 0.03), renouncement to dental care for financial reasons (p = 0.01), having syndromic disease (p = 0.01), having a problem with tooth shape and color (p = 0.03), feeling isolated, alone and different from other children (p = 0.003 and p = 0.02). Qualitative analysis highlighted very little recourse to psychological care and patients reported great anxiety and fear about the future. CONCLUSION OHRQoL of children suffering from these diseases is impaired, especially from the psychosocial point of view but also from that of the course of treatment and access to care. There is a need to improve the legibility of care pathways and the financial coverage of treatments.
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Affiliation(s)
- Lisa Friedlander
- Sorbonne Paris Cité, INSERM, Laboratoire ECEVE UMR1123, Université Paris Diderot, Paris, France
- Centre de Reference, Maladies Orales et Dentaires Rares, Hopital Rothschild, APHP, Paris, France
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
| | - Ariane Berdal
- Centre de Reference, Maladies Orales et Dentaires Rares, Hopital Rothschild, APHP, Paris, France
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Sorbonne Paris Cité, INSERM, Laboratoire de Physiopathologie Orale et Moléculaire, Université Paris Diderot, UMRS, 1138 Paris, France
| | - Priscilla Boizeau
- AP-HP, Unité d’Epidémiologie Clinique, Hôpital Robert Debré, Paris, France
- Sorbonne Paris-Cité, INSERM U1123 et CIC-EC 1426, Université Paris Diderot, Paris, France
| | - Brigitte Alliot Licht
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Centre de Competence, Maladies orales et Dentaires Rares, CHU de Nantes, Nantes, France
| | - Marie-Cécile Manière
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Centre de Référence, Maladies orales et dentaires rares, Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Arnaud Picard
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Centre de Référence des Fentes et Malformations Faciales, Hôpital Necker, AP-HP, Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, Paris, France
| | - Olivier Azzis
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Centre de Compétence des Fentes et Malformations Faciales, CHU de Rennes, Rennes, France
| | - Marie-Paule Vazquez
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- Centre de Référence des Fentes et Malformations Faciales, Hôpital Necker, AP-HP, Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, Paris, France
| | - Corinne Alberti
- Sorbonne Paris Cité, INSERM, Laboratoire ECEVE UMR1123, Université Paris Diderot, Paris, France
- AP-HP, Unité d’Epidémiologie Clinique, Hôpital Robert Debré, Paris, France
- Sorbonne Paris-Cité, INSERM U1123 et CIC-EC 1426, Université Paris Diderot, Paris, France
| | - Muriel De La Dure Molla
- Centre de Reference, Maladies Orales et Dentaires Rares, Hopital Rothschild, APHP, Paris, France
- Filière de Santé Maladies Rares TETECOU, Malformations Rares de la tête, du cou et des dents, Hôpital Necker, Paris, France
- INSERM UMRS1163 Bases Moléculaires et Physiopathologiques des Ostéochondrodysplasies, Institut Imagine, Necker, Paris, France
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6
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Strub M, Kramer E, Manière MC, Wagner D. [Primary failure of eruption: a French prospective survey among the orthodontists from the Grand Est and Bourgogne-Franche-Comté regions]. Orthod Fr 2019; 90:149-159. [PMID: 31241457 DOI: 10.1051/orthodfr/2019013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 12/04/2018] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Primary failure of eruption (PFE) can be defined as the partial or complete failure of eruption of at least one posterior tooth, without any mechanical obstacle; isolated and syndromic forms exist. PFE results from an abnormal dental eruption process that can affect temporary teeth and / or permanent teeth. Molars are the main affected teeth, inducing posterior infraclusions. Orthodontists are the specialists most often concerned by this rare pathology. Unsuccessful orthodontic-surgical traction therapies are commonly reported. MATERIALS AND METHODS The aim of our study using a prospective survey was to evaluate the level of knowledge reported by the orthodontists and the therapeutic difficulties they reported. An anonymous questionnaire was submitted to practitioners practicing in north-eastern France (Grand Est and Bourgogne-Franche-Comté regions). RESULTS The participation rate was 33.5%. In France, until 2015, specialization in orthodontics was obtained thanks to a local qualification, the Certificat d'Etudes Cliniques Spéciales - Mention Orthodontie (CECSMO), which has now been replaced by specialization following a national ranking competition. Most respondents obtained their qualification between 1980 and 2009 (80%), via the CECSMO (87%). Eighty-six per cent were aware of PFE but only 20% of them knew that PTHR1 (Parathyroid Hormone Receptor 1) gene could be involved in this pathology. The wide range of proposed therapies and the variable satisfaction rates highlight the difficulties encountered by practitioners. DISCUSSION Phenotypic variability complicates the diagnosis and makes any therapeutic systematization uncertain. CONCLUSION New clinical research projects, particularly in the field of molecular diagnosis, may improve understanding of genotype-phenotype correlations, and may potentially pilot therapeutic management.
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Affiliation(s)
- Marion Strub
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France - Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires, Centre de Référence des maladies rares orales et dentaires O-Rares, 1 place de l'Hôpital, 67000 Strasbourg, France - INSERM, UMR 1260 Nanomédecine régénérative, 11 rue Humann, 67000 Strasbourg, France
| | - Elie Kramer
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
| | - Marie-Cécile Manière
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France - Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires, Centre de Référence des maladies rares orales et dentaires O-Rares, 1 place de l'Hôpital, 67000 Strasbourg, France - INSERM, UMR 1260 Nanomédecine régénérative, 11 rue Humann, 67000 Strasbourg, France
| | - Delphine Wagner
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France - Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires, Centre de Référence des maladies rares orales et dentaires O-Rares, 1 place de l'Hôpital, 67000 Strasbourg, France - Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires, Unité Fonctionnelle d'Orthopédie Dento-Faciale, 1 place de l'Hôpital, 67000 Strasbourg, France
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7
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Laugel-Haushalter V, Bär S, Schaefer E, Stoetzel C, Geoffroy V, Alembik Y, Kharouf N, Huckert M, Hamm P, Hemmerlé J, Manière MC, Friant S, Dollfus H, Bloch-Zupan A. A New SLC10A7 Homozygous Missense Mutation Responsible for a Milder Phenotype of Skeletal Dysplasia With Amelogenesis Imperfecta. Front Genet 2019; 10:504. [PMID: 31191616 PMCID: PMC6546871 DOI: 10.3389/fgene.2019.00504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/07/2019] [Accepted: 05/07/2019] [Indexed: 01/25/2023] Open
Abstract
Amelogenesis imperfecta (AI) is a heterogeneous group of rare inherited diseases presenting with enamel defects. More than 30 genes have been reported to be involved in syndromic or non-syndromic AI and new genes are continuously discovered (Smith et al., 2017). Whole-exome sequencing was performed in a consanguineous family. The affected daughter presented with intra-uterine and postnatal growth retardation, skeletal dysplasia, macrocephaly, blue sclerae, and hypoplastic AI. We identified a homozygous missense mutation in exon 11 of SLC10A7 (NM_001300842.2: c.908C>T; p.Pro303Leu) segregating with the disease phenotype. We found that Slc10a7 transcripts were expressed in the epithelium of the developing mouse tooth, bones undergoing ossification, and in vertebrae. Our results revealed that SLC10A7 is overexpressed in patient fibroblasts. Patient cells display altered intracellular calcium localization suggesting that SLC10A7 regulates calcium trafficking. Mutations in this gene were previously reported to cause a similar syndromic phenotype, but with more severe skeletal defects (Ashikov et al., 2018;Dubail et al., 2018). Therefore, phenotypes resulting from a mutation in SLC10A7 can vary in severity. However, AI is the key feature indicative of SLC10A7 mutations in patients with skeletal dysplasia. Identifying this important phenotype will improve clinical diagnosis and patient management.
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Affiliation(s)
- Virginie Laugel-Haushalter
- Laboratoire de Génétique Médicale, UMR_S INSERM U1112, Faculté de Médecine, FMTS, Institut Génétique Médicale d'Alsace (IGMA), Université de Strasbourg, Strasbourg, France
| | - Séverine Bär
- Laboratoire de Génétique Moléculaire, Génomique, Microbiologie (GMGM), UMR7156, Centre National de Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, France
| | - Elise Schaefer
- Laboratoire de Génétique Médicale, UMR_S INSERM U1112, Faculté de Médecine, FMTS, Institut Génétique Médicale d'Alsace (IGMA), Université de Strasbourg, Strasbourg, France.,Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, IGMA, Strasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, UMR_S INSERM U1112, Faculté de Médecine, FMTS, Institut Génétique Médicale d'Alsace (IGMA), Université de Strasbourg, Strasbourg, France
| | - Véronique Geoffroy
- Laboratoire de Génétique Médicale, UMR_S INSERM U1112, Faculté de Médecine, FMTS, Institut Génétique Médicale d'Alsace (IGMA), Université de Strasbourg, Strasbourg, France
| | - Yves Alembik
- Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, IGMA, Strasbourg, France
| | - Naji Kharouf
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Laboratoire de Biomatériaux et Bioingénierie, Inserm UMR_S 1121, Strasbourg, France
| | - Mathilde Huckert
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Pauline Hamm
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Joseph Hemmerlé
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Laboratoire de Biomatériaux et Bioingénierie, Inserm UMR_S 1121, Strasbourg, France
| | - Marie-Cécile Manière
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg (HUS), Strasbourg, France
| | - Sylvie Friant
- Laboratoire de Génétique Moléculaire, Génomique, Microbiologie (GMGM), UMR7156, Centre National de Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, France
| | - Hélène Dollfus
- Laboratoire de Génétique Médicale, UMR_S INSERM U1112, Faculté de Médecine, FMTS, Institut Génétique Médicale d'Alsace (IGMA), Université de Strasbourg, Strasbourg, France.,Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, IGMA, Strasbourg, France.,Centre de Référence pour les affections rares en génétique ophtalmologique, CARGO, Filière SENSGENE, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Centre de référence des maladies rares orales et dentaires, O-Rares, Filière Santé Maladies rares TETE COU, European Reference Network ERN CRANIO, Hôpitaux Universitaires de Strasbourg (HUS), Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM U1258, CNRS-UMR7104, Université de Strasbourg, Illkirch-Graffenstaden, France.,Eastman Dental Institute, University College London, London, United Kingdom
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8
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Rey T, Tarabeux J, Gerard B, Delbarre M, Le Béchec A, Stoetzel C, Prasad M, Laugel-Haushalter V, Kawczynski M, Muller J, Chelly J, Dollfus H, Manière MC, Bloch-Zupan A. Protocol GenoDENT: Implementation of a New NGS Panel for Molecular Diagnosis of Genetic Disorders with Orodental Involvement. Methods Mol Biol 2019; 1922:407-452. [PMID: 30838594 DOI: 10.1007/978-1-4939-9012-2_36] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Rare genetic disorders are often challenging to diagnose. Anomalies of tooth number, shape, size, mineralized tissue structure, eruption, and resorption may exist as isolated symptoms or diseases but are often part of the clinical synopsis of numerous syndromes (Bloch-Zupan A, Sedano H, Scully C. Dento/oro/craniofacial anomalies and genetics, 1st edn. Elsevier, Boston, MA, 2012). Concerning amelogenesis imperfecta (AI), for example, mutations in a number of genes have been reported to cause isolated AI, including AMELX, ENAM, KLK4, MMP20, FAM83H, WDR72, C4orf26, SLC24A4, and LAMB3. In addition, many other genes such as DLX3, CNNM4, ROGDI, FAM20A, STIM1, ORAI1, and LTBP3 have been shown to be involved in developmental syndromes with enamel defects. The clinical presentation of the enamel phenotype (hypoplastic, hypomineralized, hypomature, or a combination of severities) alone does not allow a reliable prediction of possible causative genetic mutations. Understanding the potential genetic cause(s) of rare diseases is critical for overall health management of affected patient. One effective strategy to reach a genetic diagnosis is to sequence a selected gene panel chosen for a determined range of phenotypes. Here we describe a laboratory protocol to set up a specific gene panel for orodental diseases.
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Affiliation(s)
- Tristan Rey
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France
| | - Julien Tarabeux
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France
| | - Bénédicte Gerard
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France
| | - Marion Delbarre
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France
| | - Antony Le Béchec
- Hôpitaux Universitaires de Strasbourg, IRC, Institut Régional du Cancer, Strasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, INSERM UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de Strasbourg, Strasbourg, France
| | - Megana Prasad
- Laboratoire de Génétique Médicale, INSERM UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de Strasbourg, Strasbourg, France
| | - Virginie Laugel-Haushalter
- Laboratoire de Génétique Médicale, INSERM UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de Strasbourg, Strasbourg, France
| | - Marzena Kawczynski
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires (CRMR, Reference Center for Rare Oral Diseases), O-Rares, Strasbourg, France
| | - Jean Muller
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France.,Laboratoire de Génétique Médicale, INSERM UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de Strasbourg, Strasbourg, France
| | - Jamel Chelly
- Hôpitaux Universitaires de Strasbourg, Laboratoires de diagnostic génétique, Institut de Génétique Médicale d'Alsace, Strasbourg, France.,Institut de Génétique et de Biologie Moléculaire and Cellulaire, Centre Européen de Recherche en Biologie et en Médecine, CNRS UMR7104, INSERM U1258, Université de Strasbourg, Strasbourg, Illkirch, France
| | - Hélène Dollfus
- Laboratoire de Génétique Médicale, INSERM UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de Strasbourg, Strasbourg, France
| | - Marie-Cécile Manière
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France.,Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires (CRMR, Reference Center for Rare Oral Diseases), O-Rares, Strasbourg, France
| | - Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France. .,Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires (CRMR, Reference Center for Rare Oral Diseases), O-Rares, Strasbourg, France. .,Institut de Génétique et de Biologie Moléculaire and Cellulaire, Centre Européen de Recherche en Biologie et en Médecine, CNRS UMR7104, INSERM U1258, Université de Strasbourg, Strasbourg, Illkirch, France. .,Université de Strasbourg Institut d'Etudes Avancées USIAS, Strasbourg, France. .,University College London, Eastman Dental Institute, London, UK.
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9
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Toupenay S, Fournier BP, Manière MC, Ifi-Naulin C, Berdal A, de La Dure-Molla M. Amelogenesis imperfecta: therapeutic strategy from primary to permanent dentition across case reports. BMC Oral Health 2018; 18:108. [PMID: 29907114 PMCID: PMC6003150 DOI: 10.1186/s12903-018-0554-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 07/21/2016] [Accepted: 05/22/2018] [Indexed: 11/10/2022] Open
Abstract
Background Hereditary enamel defect diseases are regrouped under the name “Amelogenesis Imperfecta” (AIH). Both dentitions are affected. Clinical expression is heterogeneous and varies between patients. Mutations responsible for this multigene disease may alter various genes and the inheritance can be either autosomal dominant or recessive, or X-linked. Until now, no therapeutic consensus has emerged for this rare disease. Case presentation The purpose of this article was to report treatments of AIH patients from childhood to early adulthood. Treatment of three patients of 3, 8 16 years old are described. Each therapeutic option was discussed according to patients’ age and type of enamel alteration. Paediatric crowns and resin based bonding must be preferred in primary teeth. In permanent teeth, non-invasive or minimally invasive dentistry should be the first choice in order to follow a therapeutic gradient from the less invasive options to prosthodontic treatments. Conclusion Functional and aesthetic issues require patients to be treated; this clinical care should be provided as early as possible to enable a harmonious growth of the maxillofacial complex and to prevent pain.
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Affiliation(s)
- Steve Toupenay
- Centre de référence des maladies rares orales et dentaires Orares, Hopital Rothschild, APHP, Paris, France
| | - Benjamin Philippe Fournier
- Centre de référence des maladies rares orales et dentaires Orares, Hopital Rothschild, APHP, Paris, France.,UFR d'Odontologie, Université Paris-Diderot, F-75006, Paris, France.,Université Paris-Descartes, F-75006, Paris, France.,Université Pierre et Marie Curie-Paris, F-75006, Paris, France.,Centre de Recherche des Cordeliers, INSERM UMRS 1138, Laboratory of Molecular Oral Pathophysiology, F-75006, Paris, France
| | - Marie-Cécile Manière
- Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Maladies Rares Orales et Dentaires, CRMR O-Rares, Strasbourg, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Chantal Ifi-Naulin
- Centre de référence des maladies rares orales et dentaires Orares, Hopital Rothschild, APHP, Paris, France
| | - Ariane Berdal
- Centre de référence des maladies rares orales et dentaires Orares, Hopital Rothschild, APHP, Paris, France.,UFR d'Odontologie, Université Paris-Diderot, F-75006, Paris, France.,Université Paris-Descartes, F-75006, Paris, France.,Université Pierre et Marie Curie-Paris, F-75006, Paris, France.,Centre de Recherche des Cordeliers, INSERM UMRS 1138, Laboratory of Molecular Oral Pathophysiology, F-75006, Paris, France
| | - Muriel de La Dure-Molla
- Centre de référence des maladies rares orales et dentaires Orares, Hopital Rothschild, APHP, Paris, France. .,Université Pierre et Marie Curie-Paris, F-75006, Paris, France. .,INSERM UMR_S1163 Bases moléculaires et physiopathologiques des ostéochondrodysplasies, Institut Imagine, Necker, Paris, France. .,Odontology Department, Rothschild Hospital, 5 rue Santerre, 75012, Paris, France.
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10
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Gasse B, Prasad M, Delgado S, Huckert M, Kawczynski M, Garret-Bernardin A, Lopez-Cazaux S, Bailleul-Forestier I, Manière MC, Stoetzel C, Bloch-Zupan A, Sire JY. Evolutionary Analysis Predicts Sensitive Positions of MMP20 and Validates Newly- and Previously-Identified MMP20 Mutations Causing Amelogenesis Imperfecta. Front Physiol 2017; 8:398. [PMID: 28659819 PMCID: PMC5469888 DOI: 10.3389/fphys.2017.00398] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/26/2017] [Indexed: 12/21/2022] Open
Abstract
Amelogenesis imperfecta (AI) designates a group of genetic diseases characterized by a large range of enamel disorders causing important social and health problems. These defects can result from mutations in enamel matrix proteins or protease encoding genes. A range of mutations in the enamel cleavage enzyme matrix metalloproteinase-20 gene (MMP20) produce enamel defects of varying severity. To address how various alterations produce a range of AI phenotypes, we performed a targeted analysis to find MMP20 mutations in French patients diagnosed with non-syndromic AI. Genomic DNA was isolated from saliva and MMP20 exons and exon-intron boundaries sequenced. We identified several homozygous or heterozygous mutations, putatively involved in the AI phenotypes. To validate missense mutations and predict sensitive positions in the MMP20 sequence, we evolutionarily compared 75 sequences extracted from the public databases using the Datamonkey webserver. These sequences were representative of mammalian lineages, covering more than 150 million years of evolution. This analysis allowed us to find 324 sensitive positions (out of the 483 MMP20 residues), pinpoint functionally important domains, and build an evolutionary chart of important conserved MMP20 regions. This is an efficient tool to identify new- and previously-identified mutations. We thus identified six functional MMP20 mutations in unrelated families, finding two novel mutated sites. The genotypes and phenotypes of these six mutations are described and compared. To date, 13 MMP20 mutations causing AI have been reported, making these genotypes and associated hypomature enamel phenotypes the most frequent in AI.
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Affiliation(s)
- Barbara Gasse
- Institut de Biologie Paris-Seine, UMR 7138-Evolution Paris-Seine, Sorbonne Universités, Université Pierre et Marie CurieParis, France
| | - Megana Prasad
- Laboratoire de Génétique Médicale, Institut National de la Santé et de la Recherche Médicale UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de StrasbourgStrasbourg, France
| | - Sidney Delgado
- Institut de Biologie Paris-Seine, UMR 7138-Evolution Paris-Seine, Sorbonne Universités, Université Pierre et Marie CurieParis, France
| | - Mathilde Huckert
- Laboratoire de Génétique Médicale, Institut National de la Santé et de la Recherche Médicale UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de StrasbourgStrasbourg, France.,Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France
| | - Marzena Kawczynski
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Manifestations Odontologiques des Maladies Rares, O-Rares, Hôpitaux Universitaires de StrasbourgStrasbourg, France
| | - Annelyse Garret-Bernardin
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France.,Unit of Dentistry, IRCCS, Bambino Gesù Children's HospitalRome, Italy
| | - Serena Lopez-Cazaux
- Faculté de Chirurgie Dentaire, Département d'Odontologie Pédiatrique, Centre de Compétences Maladies Rares, CHU Hôtel Dieu, Service d'odontologie Conservatrice et PédiatriqueNantes, France
| | - Isabelle Bailleul-Forestier
- Faculté de Chirurgie Dentaire, CHU de Toulouse, Centre de Compétences Maladies Rares, Odontologie Pédiatrique, Université Paul SabatierToulouse, France
| | - Marie-Cécile Manière
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Manifestations Odontologiques des Maladies Rares, O-Rares, Hôpitaux Universitaires de StrasbourgStrasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, Institut National de la Santé et de la Recherche Médicale UMRS_1112, Institut de Génétique Médicale d'Alsace, FMTS, Université de StrasbourgStrasbourg, France
| | - Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France.,Pôle de Médecine et Chirurgie Bucco-Dentaires, Centre de Référence des Manifestations Odontologiques des Maladies Rares, O-Rares, Hôpitaux Universitaires de StrasbourgStrasbourg, France.,Centre Européen de Recherche en Biologie et en Médecine, Centre National de la Recherche Scientifique UMR7104, Institut National de la Santé et de la Recherche Médicale U964, Institut de Génétique et de Biologie Moléculaire and Cellulaire, Université de StrasbourgIllkirch, France.,Institut d'Etudes Avancées, Université de Strasbourg, USIASStrasbourg, France.,Eastman Dental Institute, University College LondonLondon, United Kingdom
| | - Jean-Yves Sire
- Institut de Biologie Paris-Seine, UMR 7138-Evolution Paris-Seine, Sorbonne Universités, Université Pierre et Marie CurieParis, France
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11
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Bloch-Zupan A, Huckert M, Stoetzel C, Meyer J, Geoffroy V, Razafindrakoto RW, Ralison SN, Randrianaivo JC, Ralison G, Andriamasinoro RO, Ramanampamaharana RH, Randrianazary SE, Ralimanana LH, Richard B, Gorry P, Manière MC, Rasoamananjara JA, Rakoto Alson S, Dollfus H. Corrigendum: Detection of a Novel DSPP Mutation by NGS in a Population Isolate in Madagascar. Front Physiol 2016; 7:304. [PMID: 27471476 PMCID: PMC4961216 DOI: 10.3389/fphys.2016.00304] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 07/06/2016] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article on p. 70 in vol. 7, PMID: 26973538.].
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Affiliation(s)
- Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Centre de Référence des Manifestations Odontologiques des Maladies Rares, Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires Hôpital CivilStrasbourg, France; Centre National de la Recherche Scientifique-UMR7104, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Institut National de la Santé et de la Recherche Médicale U 964, Université de StrasbourgIllkirch, France
| | - Mathilde Huckert
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de StrasbourgStrasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
| | - Julia Meyer
- Faculté de Chirurgie Dentaire, Université de Strasbourg Strasbourg, France
| | - Véronique Geoffroy
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
| | - Rabisoa W Razafindrakoto
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Saholy N Ralison
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Jean-Claude Randrianaivo
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Georgette Ralison
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Rija O Andriamasinoro
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Rija H Ramanampamaharana
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | | | - Louise H Ralimanana
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | | | - Philippe Gorry
- Research Unit of Theoretical & Applied Economics, GREThA (UMR Centre National de la Recherche Scientifique 5113), Université de Bordeaux Pessac Pessac, France
| | - Marie-Cécile Manière
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Centre de Référence des Manifestations Odontologiques des Maladies Rares, Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires Hôpital CivilStrasbourg, France
| | - Jeanne A Rasoamananjara
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Simone Rakoto Alson
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Hélène Dollfus
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
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12
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Bloch-Zupan A, Huckert M, Stoetzel C, Meyer J, Geoffroy V, Razafindrakoto RW, Ralison SN, Randrianaivo JC, Ralison G, Andriamasinoro RO, Ramanampamaharana RH, Randrianazary SE, Richard B, Gorry P, Manière MC, Rakoto Alson S, Dollfus H. Detection of a Novel DSPP Mutation by NGS in a Population Isolate in Madagascar. Front Physiol 2016; 7:70. [PMID: 26973538 PMCID: PMC4773637 DOI: 10.3389/fphys.2016.00070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 12/17/2015] [Accepted: 02/12/2016] [Indexed: 12/03/2022] Open
Abstract
A large family from a small village in Madagascar, Antanetilava, is known to present with colored teeth. Through previous collaboration and 4 successive visits in 1994, 2004, 2005, and 2012, we provided dental care to the inhabitants and diagnosed dentinogenesis imperfecta. Recently, using whole exome sequencing we confirmed the clinical diagnosis by identifying a novel single nucleotide deletion in exon 5 of DSPP. This paper underlines the necessity of long run research, the importance of international and interpersonal collaborations as well as the major contribution of next generation sequencing tools in the genetic diagnosis of rare oro-dental anomalies. This study is registered in ClinicalTrials (https://clinicaltrials.gov) under the number NCT02397824.
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Affiliation(s)
- Agnès Bloch-Zupan
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Centre de Référence des Manifestations Odontologiques des Maladies Rares, Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires Hôpital CivilStrasbourg, France; Centre National de la Recherche Scientifique-UMR7104, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Institut National de la Santé et de la Recherche Médicale U 964, Université de StrasbourgIllkirch, France
| | - Mathilde Huckert
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de StrasbourgStrasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
| | - Julia Meyer
- Faculté de Chirurgie Dentaire, Université de Strasbourg Strasbourg, France
| | - Véronique Geoffroy
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
| | - Rabisoa W Razafindrakoto
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Saholy N Ralison
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Jean-Claude Randrianaivo
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Georgette Ralison
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Rija O Andriamasinoro
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Rija H Ramanampamaharana
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | | | | | - Philippe Gorry
- Research Unit of Theoretical & Applied Economics, GREThA (UMR Centre National de la Recherche Scientifique 5113), Université de Bordeaux Pessac, France
| | - Marie-Cécile Manière
- Faculté de Chirurgie Dentaire, Université de StrasbourgStrasbourg, France; Centre de Référence des Manifestations Odontologiques des Maladies Rares, Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-dentaires Hôpital CivilStrasbourg, France
| | - Simone Rakoto Alson
- Institut d'Odonto-Stomatologie Tropicale de Madagascar, Université de Mahajanga Mahajanga, Madagascar
| | - Hélène Dollfus
- Laboratoire de Génétique Médicale, Faculté de Médecine, Institut National de la Santé et de la Recherche Médicale U 1112, Université de Strasbourg Strasbourg, France
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13
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Herenger Y, Stoetzel C, Schaefer E, Scheidecker S, Manière MC, Pelletier V, Alembik Y, Christmann D, Clavert JM, Terzic J, Fischbach M, De Saint Martin A, Dollfus H. Long term follow up of two independent patients with Schinzel-Giedion carrying SETBP1 mutations. Eur J Med Genet 2015; 58:479-87. [PMID: 26188272 DOI: 10.1016/j.ejmg.2015.07.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 02/26/2015] [Revised: 06/26/2015] [Accepted: 07/13/2015] [Indexed: 10/23/2022]
Abstract
Schinzel-Giedion syndrome (SGS, MIM #269150) is a rare syndrome characterized by severe intellectual disability, typical facial gestalt, hypertrichosis and multiple congenital malformations including skeletal, genitourinary, renal and cardiac abnormalities. The prognosis of SGS is very severe and death occurs generally within a few years after birth. In 2002, we reported 2 children with SGS with a follow-up of 3 years. They presented a very similar and particular phenotype associating distinctive facial gestalt, severe developmental delay, megacalycosis, progressive neurodegeneration, alacrimi, corneal hypoesthesia and deafness. Furthermore, temporal bone imaging revealed a tuning-fork malformation of the stapes. In 2010, Hoischen et al. identified in SGS patients pathogenic heterozygous de novo mutations in SETBP1. We sequenced SETBP1 in our patients and found the previously reported c.2608G>A (p.Gly870Ser) mutation in both children. Since 2002, one of our patients died at 6 years old and the other patient is still alive at 15 years old. Such a life expectancy has never been reported so far. We describe herein the follow up of the 2 children during 6 and 15 years respectively. This article gives further evidence of the implication of SETBP1 as the major gene of SGS, and reports the previously unseen natural evolution of the disease in a 15 years old patient.
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Affiliation(s)
- Yvan Herenger
- Laboratoire de Génétique Médicale INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de Médecine de Strasbourg, Université De Strasbourg, Strasbourg, France; Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de Médecine de Strasbourg, Université De Strasbourg, Strasbourg, France
| | - Elise Schaefer
- Laboratoire de Génétique Médicale INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de Médecine de Strasbourg, Université De Strasbourg, Strasbourg, France; Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sophie Scheidecker
- Laboratoire de Génétique Médicale INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de Médecine de Strasbourg, Université De Strasbourg, Strasbourg, France; Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marie-Cécile Manière
- Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, Pôle de Médecine et Chirurgie Bucco-Dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Valérie Pelletier
- Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Yves Alembik
- Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Dominique Christmann
- Service de Radiologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Jean-Michel Clavert
- Service de Pédiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Joelle Terzic
- Service de Pédiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Michel Fischbach
- Service de Pédiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | | | - Hélène Dollfus
- Laboratoire de Génétique Médicale INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de Médecine de Strasbourg, Université De Strasbourg, Strasbourg, France; Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Service de Génétique Médicale, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
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14
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Huckert M, Stoetzel C, Morkmued S, Laugel-Haushalter V, Geoffroy V, Muller J, Clauss F, Prasad MK, Obry F, Raymond JL, Switala M, Alembik Y, Soskin S, Mathieu E, Hemmerlé J, Weickert JL, Dabovic BB, Rifkin DB, Dheedene A, Boudin E, Caluseriu O, Cholette MC, Mcleod R, Antequera R, Gellé MP, Coeuriot JL, Jacquelin LF, Bailleul-Forestier I, Manière MC, Van Hul W, Bertola D, Dollé P, Verloes A, Mortier G, Dollfus H, Bloch-Zupan A. Mutations in the latent TGF-beta binding protein 3 (LTBP3) gene cause brachyolmia with amelogenesis imperfecta. Hum Mol Genet 2015; 24:3038-49. [PMID: 25669657 PMCID: PMC4424950 DOI: 10.1093/hmg/ddv053] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 02/06/2015] [Indexed: 01/27/2023] Open
Abstract
Inherited dental malformations constitute a clinically and genetically heterogeneous group of disorders. Here, we report on four families, three of them consanguineous, with an identical phenotype, characterized by significant short stature with brachyolmia and hypoplastic amelogenesis imperfecta (AI) with almost absent enamel. This phenotype was first described in 1996 by Verloes et al. as an autosomal recessive form of brachyolmia associated with AI. Whole-exome sequencing resulted in the identification of recessive hypomorphic mutations including deletion, nonsense and splice mutations, in the LTBP3 gene, which is involved in the TGF-beta signaling pathway. We further investigated gene expression during mouse development and tooth formation. Differentiated ameloblasts synthesizing enamel matrix proteins and odontoblasts expressed the gene. Study of an available knockout mouse model showed that the mutant mice displayed very thin to absent enamel in both incisors and molars, hereby recapitulating the AI phenotype in the human disorder.
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Affiliation(s)
- Mathilde Huckert
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Corinne Stoetzel
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France
| | - Supawich Morkmued
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CERBM, INSERM U 964, CNRS UMR 7104, 1 rue Laurent Fries, BP 10142, Illkirch 67404, France Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | - Virginie Laugel-Haushalter
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CERBM, INSERM U 964, CNRS UMR 7104, 1 rue Laurent Fries, BP 10142, Illkirch 67404, France
| | - Véronique Geoffroy
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France
| | - Jean Muller
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CERBM, INSERM U 964, CNRS UMR 7104, 1 rue Laurent Fries, BP 10142, Illkirch 67404, France Université de Strasbourg, Laboratoire ICube UMR 7357, CNRS, LBGI, Strasbourg, France Hôpitaux Universitaires de Strasbourg, Laboratoire de Diagnostic Génétique, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - François Clauss
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Université de Strasbourg, Osteoarticular and Dental Regenerative NanoMedicine, Inserm UMR 1109, 11 rue Humann 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Megana K Prasad
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France
| | - Frédéric Obry
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Jean Louis Raymond
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France
| | - Marzena Switala
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Yves Alembik
- Hôpitaux Universitaires de Strasbourg, Service de Génétique Médicale, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Sylvie Soskin
- Hôpitaux Universitaires de Strasbourg, Service de Pédiatrie 1, Endocrinologie Pédiatrique, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Eric Mathieu
- Université de Strasbourg, Biomaterials and Bioengineering, Inserm UMR 1121, 11 rue Humann, 67000 Strasbourg, France
| | - Joseph Hemmerlé
- Université de Strasbourg, Biomaterials and Bioengineering, Inserm UMR 1121, 11 rue Humann, 67000 Strasbourg, France
| | - Jean-Luc Weickert
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CERBM, INSERM U 964, CNRS UMR 7104, 1 rue Laurent Fries, BP 10142, Illkirch 67404, France
| | | | - Daniel B Rifkin
- Department of Cell Biology, NYU Langone Medical Centre, New York, USA
| | - Annelies Dheedene
- Center for Medical Genetics, Ghent University, Ghent University Hospital, De Pintelaan 185, Ghent 9000, Belgium
| | - Eveline Boudin
- Department of Medical Genetics, University of Antwerp and Antwerp University Hospital, Prins Boudewijnlaan 43, Edegem 2650, Belgium
| | - Oana Caluseriu
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Calgary, Alberta Children's Hospital, Calgary, AB, Canada
| | - Marie-Claude Cholette
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Calgary, Alberta Children's Hospital, Calgary, AB, Canada
| | - Ross Mcleod
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Calgary, Alberta Children's Hospital, Calgary, AB, Canada
| | | | - Marie-Paule Gellé
- Faculté d'Odontologie, Université de Reims Champagne-Ardenne, 2 rue du Général Koenig, Reims 51100, France Laboratoire EA 4691 'BIOS', 1, rue du Maréchal Juin, Reims 51100, France
| | - Jean-Louis Coeuriot
- Faculté d'Odontologie, Université de Reims Champagne-Ardenne, 2 rue du Général Koenig, Reims 51100, France
| | - Louis-Frédéric Jacquelin
- Faculté d'Odontologie, Université de Reims Champagne-Ardenne, 2 rue du Général Koenig, Reims 51100, France
| | - Isabelle Bailleul-Forestier
- Faculty of Dentistry, Paul Sabatier University, LU51, Pôle Odontologie, Hôpitaux de Toulouse, 3 Chemin des Maraîchers, Toulouse, France
| | - Marie-Cécile Manière
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue St Elisabeth, 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Pôle de Médecine et Chirurgie Bucco-Dentaires, Reference Centre for Orodental Manifestations of Rare Diseases, CRMR, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Wim Van Hul
- Department of Medical Genetics, University of Antwerp and Antwerp University Hospital, Prins Boudewijnlaan 43, Edegem 2650, Belgium
| | - Debora Bertola
- Unidade de Genética do Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo - Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil and
| | - Pascal Dollé
- Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CERBM, INSERM U 964, CNRS UMR 7104, 1 rue Laurent Fries, BP 10142, Illkirch 67404, France
| | - Alain Verloes
- Département de Génétique - Hôpital Robert Debré, CRMR 'Anomalies du Développement & Syndromes Malformatifs', CRMR 'Déficiences Intellectuelles de Causes Rares', 48 bd Sérurier, Paris 75019, France
| | - Geert Mortier
- Center for Medical Genetics, Ghent University, Ghent University Hospital, De Pintelaan 185, Ghent 9000, Belgium Department of Medical Genetics, University of Antwerp and Antwerp University Hospital, Prins Boudewijnlaan 43, Edegem 2650, Belgium
| | - Hélène Dollfus
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France Hôpitaux Universitaires de Strasbourg, Service de Génétique Médicale, 1 place de l'Hôpital, 67000 Strasbourg, France
| | - Agnès Bloch-Zupan
- Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France Université de Strasbourg, Laboratoire de Génétique Médicale, INSERM UMR 1112, Faculté de Médecine, FMTS, 11 rue Humann 67000 Strasbourg, France
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15
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Huckert M, Mecili H, Laugel-Haushalter V, Stoetzel C, Muller J, Flori E, Laugel V, Manière MC, Dollfus H, Bloch-Zupan A. A Novel Mutation in the ROGDI Gene in a Patient with Kohlschütter-Tönz Syndrome. Mol Syndromol 2014; 5:293-8. [PMID: 25565929 DOI: 10.1159/000366252] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2014] [Indexed: 11/19/2022] Open
Abstract
Kohlschütter-Tönz Syndrome (KTZS) is an autosomal recessive disorder caused by mutations in the ROGDI gene. This syndrome is characterized by epilepsy, psychomotor regression and amelogenesis imperfecta. In this paper, we report a case of a 13-year-old Malian girl presenting with this rare disease. By genetic analysis, we identified a novel ROGDI homozygous mutation NM_024589.1: c.117+1G>T [Chr16 (GRCh37): g.4852382C>A] which confirmed the diagnosis of Kohlschütter-Tönz syndrome. The mutation abolishes the usual splice donor site of intron 2 which leads to the deletion of exon 2 and in-frame assembly of exon 3. Exon 2 encodes a highly conserved leucine-rich region that is essential for ROGDI protein function. Hence, this deletion may affect the function of the ROGDI protein.
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Affiliation(s)
- Mathilde Huckert
- Faculty of Dentistry, University of Strasbourg (UdS), France ; Reference Center for Orodental Manifestations of Rare Diseases, Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Hôpitaux Universitaires de Strasbourg (HUS), France ; Laboratoire de Génétique Médicale, INSERM UMR_S 1112, Strasbourg Medical School, UdS, France
| | - Helen Mecili
- Centre de Référence des Maladies Neuromusculaires d'Origine Génétique de l'Enfant et l'Adulte, Hôpital de Hautepierre, HUS, France
| | - Virginie Laugel-Haushalter
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), UMR 7104 and INSERM U964, UdS, Illkirch, France
| | - Corinne Stoetzel
- Laboratoire de Génétique Médicale, INSERM UMR_S 1112, Strasbourg Medical School, UdS, France
| | - Jean Muller
- Laboratoire de Diagnostic Génétique, HUS, France ; ICube UMR 7357, UdS, CNRS, LBGI, France ; Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), UMR 7104 and INSERM U964, UdS, Illkirch, France
| | - Elisabeth Flori
- Laboratoire de Cytogénétique, Cytologie et Histologie Quantitative, Hôpital de Hautepierre, HUS, Strasbourg, France
| | - Vincent Laugel
- Centre de Référence des Maladies Neuromusculaires d'Origine Génétique de l'Enfant et l'Adulte, Hôpital de Hautepierre, HUS, France
| | - Marie-Cécile Manière
- Faculty of Dentistry, University of Strasbourg (UdS), France ; Reference Center for Orodental Manifestations of Rare Diseases, Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Hôpitaux Universitaires de Strasbourg (HUS), France
| | - Hélène Dollfus
- Laboratoire de Génétique Médicale, INSERM UMR_S 1112, Strasbourg Medical School, UdS, France
| | - Agnès Bloch-Zupan
- Faculty of Dentistry, University of Strasbourg (UdS), France ; Reference Center for Orodental Manifestations of Rare Diseases, Pôle de Médecine et Chirurgie Bucco-dentaires, Hôpital Civil, Hôpitaux Universitaires de Strasbourg (HUS), France ; Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), UMR 7104 and INSERM U964, UdS, Illkirch, France
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Bornert F, Clauss F, Gros CI, Faradji A, Schmittbuhl M, Manière MC, Feki A. Hemostatic management in pediatric patients with type I von Willebrand disease undergoing oral surgery: case report and literature review. J Oral Maxillofac Surg 2011; 69:2086-91. [PMID: 21783000 DOI: 10.1016/j.joms.2011.03.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 03/09/2011] [Accepted: 03/30/2011] [Indexed: 10/18/2022]
Affiliation(s)
- Fabien Bornert
- Department of Oral Medicine and Oral Surgery, University Hospital, Strasbourg, France.
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Cluzeau C, Hadj-Rabia S, Jambou M, Mansour S, Guigue P, Masmoudi S, Bal E, Chassaing N, Vincent MC, Viot G, Clauss F, Manière MC, Toupenay S, Le Merrer M, Lyonnet S, Cormier-Daire V, Amiel J, Faivre L, de Prost Y, Munnich A, Bonnefont JP, Bodemer C, Smahi A. Only four genes (EDA1, EDAR, EDARADD, and WNT10A) account for 90% of hypohidrotic/anhidrotic ectodermal dysplasia cases. Hum Mutat 2010; 32:70-2. [PMID: 20979233 DOI: 10.1002/humu.21384] [Citation(s) in RCA: 194] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Céline Cluzeau
- Université Paris Descartes, INSERM U, Hôpital Necker-Enfants Malades, France
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Gros CI, Clauss F, Obry F, Manière MC, Schmittbuhl M. Quantification of taurodontism: interests in the early diagnosis of hypohidrotic ectodermal dysplasia. Oral Dis 2010; 16:292-8. [DOI: 10.1111/j.1601-0825.2009.01641.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lesot H, Clauss F, Manière MC, Schmittbuhl M. Consequences of X-linked hypohidrotic ectodermal dysplasia for the human jaw bone. Front Oral Biol 2010; 13:93-99. [PMID: 19828977 DOI: 10.1159/000242398] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Mutations of the Eda gene, which encodes for ectodysplasin-A1, result in X-linked hypohydrotic ectodermal dysplasia (XLHED). This pathology may lead to severe oligodontia, subsequently requiring implant therapy. Since Eda is suspected to participate in bone development, the jaw bone status was investigated in XLHED patients in order to adjust the surgical protocol. Using computed tomography, densitometric profiles and 3D reconstructions, the bone structure was analyzed and compared to that of control individuals; our results showed that the morphological changes comprised mandibular bone flattening. Craniofacial CT scans showed medullary bone hyperdensity, including in the mandibular symphysis area, where implants must be placed. These alterations in bone structure were also observed in locations where the presence/absence of teeth cannot interfere. If the changes in jaw bone morphology can be a consequence of oligodontia, the changes in bone structure seem to be tooth-independent and suggest a direct effect of the mutation on bone formation and/or remodeling.
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Clauss F, Chassaing N, Smahi A, Vincent MC, Calvas P, Molla M, Lesot H, Alembik Y, Hadj-Rabia S, Bodemer C, Manière MC, Schmittbuhl M. X-linked and autosomal recessive Hypohidrotic Ectodermal Dysplasia: genotypic-dental phenotypic findings. Clin Genet 2010; 78:257-66. [DOI: 10.1111/j.1399-0004.2010.01376.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Reibel A, Manière MC, Clauss F, Droz D, Alembik Y, Mornet E, Bloch-Zupan A. Orodental phenotype and genotype findings in all subtypes of hypophosphatasia. Orphanet J Rare Dis 2009; 4:6. [PMID: 19232125 PMCID: PMC2654544 DOI: 10.1186/1750-1172-4-6] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 02/21/2009] [Indexed: 11/24/2022] Open
Abstract
Background Hypophosphatasia (HP) is a rare inherited disorder characterized by a wide spectrum of defects in mineralized tissues and caused by deficiency in the tissue non-specific alkaline phosphatase gene (ALPL). The symptoms are highly variable in their clinical expression, and relate to numerous mutations in this gene. The first clinical sign of the disease is often a premature loss of deciduous teeth, mostly in the moderate forms. Aim The purpose of this study was to document the oral features of HP patients and to relate theses features to the six recognized forms of HP in 5 patients with known genotype and to investigate the genotype-phenotype correlations. Methods Clinical and radiographic examinations were carried out. We collected medical and dental history in the kindred and biochemical data. Finally, mutations in the ALPL gene were tested by DNA sequencing in SESEP laboratory. Results We have for the first time related the known dental anomalies which occur as integral features of HP to the recognized clinical forms of HP. We also pointed out striking dental abnormalities which were never described in association with this rare disease. Accurate genotype-phenotype severity correlations were observed. Conclusion This work allowed us to compare orodental manifestations in all the clinical forms of HP within the patient's sample. According to the severity of the disorder, some dental defects were infrequent, while other were always present. The long term prognosis of the permanent teeth varies from a patient to another. As premature loss of primary teeth is often the first, and sometimes the only visible symptom of the milder forms, the paediatric dentist plays a critical role in the detection and diagnosis of the disease.
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Affiliation(s)
- Amélie Reibel
- Department of Paediatric Dentistry, Faculty of Dentistry, University of Strasbourg, France.
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Collado V, Nicolas E, Faulks D, Tardieu C, Manière MC, Droz D, Onody P, Hennequin M. Evaluation of safe and effective administration of nitrous oxide after a postgraduate training course. BMC Clin Pharmacol 2008; 8:3. [PMID: 18547418 PMCID: PMC2438323 DOI: 10.1186/1472-6904-8-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Accepted: 06/11/2008] [Indexed: 11/10/2022]
Abstract
BACKGROUND Conscious sedation is used in dentistry to improve access and quality of care in patients who have difficulty coping with treatment. The aim of this prospective study was to describe a postgraduate training course in conscious sedation for dentists, with specific evaluation of the safe and effective administration of a 50% nitrous oxide in oxygen premix. METHODS 45 practitioners were trained between 2002 and 2004. They carried out 826 sessions of inhalation sedation in 662 patients. The clinical competency of this group was compared with an expert group. RESULTS There was no difference between trainees and experts in ability to complete the planned dental treatment under sedation (89.6% vs 93.2%). Trainees were less successful than experts for patients with intellectual disability (87.4% vs 94.2%, p < 0.01). For both groups, the degree of cooperation improved between initial induction and each perioperative step (Wilcoxon test, p < 0.01). However, for trainees, Venham behaviour scores varied with the type of patient (Kruskal Wallis test, p < 0.001). No major adverse effects were recorded. Trainees reported more minor adverse effects than experts (13% vs. 5.3% respectively, Fisher exact test, p < 0.001) CONCLUSION The trainee practitioners provided effective and safe inhalation sedation. This challenges the current French restriction of the 50% nitrous oxide in oxygen premix to the hospital setting. Further emphasis is required on the teaching of behaviour management skills for patients with intellectual disability.
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Affiliation(s)
- Valérie Collado
- Univ Clermont1, EA 3847, UFR d'Odontologie, and CHU Clermont-Ferrand, Service d'Odontologie, Hôtel-Dieu, F-63003, Clermont-Ferrand, France
| | - Emmanuel Nicolas
- Univ Clermont1, EA 3847, UFR d'Odontologie, and CHU Clermont-Ferrand, Service d'Odontologie, Hôtel-Dieu, F-63003, Clermont-Ferrand, France
| | - Denise Faulks
- Univ Clermont1, EA 3847, UFR d'Odontologie, and CHU Clermont-Ferrand, Service d'Odontologie, Hôtel-Dieu, F-63003, Clermont-Ferrand, France
| | - Corinne Tardieu
- Faculté d'Odontologie and Service d'Odontologie, Hôpital la Timone, 27 boulevard Jean Moulin, 13385 Marseille Cedex 5, France
| | - Marie-Cécile Manière
- Faculté d'Odontologie et Hôpital Civil, 1 place de l'Hôpital, 67091 Strasbourg, France
| | - Dominique Droz
- Faculté d'Odontologie, Département d'Odontologie pédiatrique, 96 Avenue de Lattre de Tassigny, 54004 NANCY Cedex, France
| | - Peter Onody
- Air Liquide Santé International, 10 rue Cognacq-Jay, 75341 Paris Cedex 7, France
| | - Martine Hennequin
- Univ Clermont1, EA 3847, UFR d'Odontologie, and CHU Clermont-Ferrand, Service d'Odontologie, Hôtel-Dieu, F-63003, Clermont-Ferrand, France
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Faulks D, Hennequin M, Albecker-Grappe S, Manière MC, Tardieu C, Berthet A, Wolikow M, Droz D, Koscielny S, Onody P. Sedation with 50% nitrous oxide/oxygen for outpatient dental treatment in individuals with intellectual disability. Dev Med Child Neurol 2007; 49:621-5. [PMID: 17635209 DOI: 10.1111/j.1469-8749.2007.00621.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [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: 11/29/2022]
Abstract
Persons with intellectual disability have difficulty in cooperating with outpatient care, and many are referred for general anaesthesia. Intellectual disability has traditionally been a contraindication for conscious sedation. We evaluated the behavioural impact, effectiveness, and tolerance of sedation in this population using a fixed 50% nitrous oxide/oxygen mixture as a single agent. We used dental treatment as a model of outpatient care; 349 patients (192 males, 157 females; mean age 22y [SD 14]; range 3-81y) were recruited over a 12-month period at seven centres. Sedation was deemed successful if planned dental treatment was completed. Behaviour was scored with the modified Venham scale. Out of 605 sessions, 91.4% were successful. No serious adverse effects occurred. Minor adverse events (such as nausea) occurred in 10.1% of sessions. We conclude that the use of safe and effective conscious sedation may reduce the indications for general anaesthesia.
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Affiliation(s)
- Denise Faulks
- Service d'Odontologie, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France.
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Hennequin M, Manière MC, Albecker-Grappe S, Faulks D, Berthet A, Tardieu C, Droz D, Wolikow M, Koscielny S, Onody P. A prospective multicentric trial for effectiveness and tolerance of a N2O/O2 premix used as a sedative drug. J Clin Psychopharmacol 2004; 24:552-4. [PMID: 15349016 DOI: 10.1097/01.jcp.0000138773.48138.c5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
The inherited dentin defect dentinogenesis imperfecta (DI), while clinically obvious in osteogenesis imperfecta (OI) Types IB and IC, II, III, and IVB, is now thought to be present in all children with OI, in a continuum from minimal to severe dentin pathology. This collaborative study further clarifies the structural and ultrastructural dentin changes in the teeth of OI children with clinically obvious DI, and attempts to explain these in terms of odontoblast dysfunction. Collaborative studies were carried out in Melbourne, Australia, and Strasbourg, France, using light and polarized-light microscopy, scanning and transmission electron microscopy (SEM, TEM), selected-area diffraction (SAD), and x-ray spectroscopy (EDX). These showed structurally normal enamel (but containing long and broad lamellae) and a normally scalloped dentino-enamel junction (DEJ), but severe pathologic changes in the dentin. An initial narrow band of normal-appearing dentin tubules (including the mantle layer) ceased abruptly and was replaced by a wavelike laminar zone parallel to the DEJ with occluded tubules. Multiple parallel channels of 5-10 microns diameter were present at right angles to the DEJ indenting this zone, some terminating in retro-curved "processes." The abnormal dentin containing these channels almost completely occluded the pulp chamber. The structural and ultrastructural changes seen can be explained on the basis of the collagen defect in OI resulting in odontoblast dysfunction, which produces a distinct phenotype and one that is different from that in bone.
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Affiliation(s)
- R K Hall
- University of Melbourne, Royal Children's Hospital, Melbourne, Australia.
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Fischbach M, Sommermater JI, Obry F, Manière MC, Frank RM, Attal Y, Geisert J. [Dental anomalies in children with chronic renal insufficiency (II)]. Med Hyg (Geneve) 1984; 42:1346, 1349-50. [PMID: 6589461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Fischbach M, Sommermater JI, Obray F, Manière MC, Frank RM, Attal Y, Geisert J. [Dental anomalies in children with chronic renal insufficiency (I)]. Med Hyg (Geneve) 1984; 42:1259, 1261. [PMID: 6589460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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