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Kantaputra PN, Tripuwabhrut K, Anthonappa RP, Chintakanon K, Ngamphiw C, Adisornkanj P, Porntrakulseree N, Olsen B, Intachai W, Hennekam RC, Vieira AR, Tongsima S. Heterozygous Variants in FREM2 Are Associated with Mesiodens, Supernumerary Teeth, Oral Exostoses, and Odontomas. Diagnostics (Basel) 2023; 13:diagnostics13071214. [PMID: 37046432 PMCID: PMC10093539 DOI: 10.3390/diagnostics13071214] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Supernumerary teeth refer to extra teeth that exceed the usual number of dentitions. A mesiodens is a particular form of supernumerary tooth, which is located in the premaxilla region. The objective of the study was to investigate the genetic etiology of extra tooth phenotypes, including mesiodens and isolated supernumerary teeth. METHODS Oral and radiographic examinations and whole-exome sequencing were performed on every patient in our cohort of 122 patients, including 27 patients with isolated supernumerary teeth and 94 patients with mesiodens. A patient who had multiple supernumerary teeth also had odontomas. RESULTS We identified a novel (c.8498A>G; p.Asn2833Ser) and six recurrent (c.1603C>T; p.Arg535Cys, c.5852G>A; p.Arg1951His, c.6949A>T; p.Thr2317Ser; c.1549G>A; p.Val517Met, c.1921A>G; p.Thr641Ala, and c.850G>C; p.Val284Leu) heterozygous missense variants in FREM2 in eight patients with extra tooth phenotypes. CONCLUSIONS Biallelic variants in FREM2 are implicated in autosomal recessive Fraser syndrome with or without dental anomalies. Here, we report for the first time that heterozygous carriers of FREM2 variants have phenotypes including oral exostoses, mesiodens, and isolated supernumerary teeth.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kanich Tripuwabhrut
- Division of Orthodontics, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Robert P Anthonappa
- Department of Pediatric Dentistry, University of Western Australia Dental School, Nedlands, WA 6009, Australia
| | - Kanoknart Chintakanon
- Division of Orthodontics, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang 12120, Thailand
| | - Ploy Adisornkanj
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
- Dental Department, Sawang Daen Din Crown Prince Hospital, Sakon Nakhon 47110, Thailand
| | | | - Bjorn Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Harvard University, Boston, MA 02115, USA
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Raoul C Hennekam
- Department of Pediatrics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Alexandre R Vieira
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang 12120, Thailand
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Kantaputra PN, Angkurawaranon S, Intachai W, Ngamphiw C, Olsen B, Tongsima S, Cox TC, Ketudat Cairns JR. A Founder Intronic Variant in P3H1 Likely Results in Aberrant Splicing and Protein Truncation in Patients of Karen Descent with Osteogenesis Imperfecta Type VIII. Genes (Basel) 2023; 14:genes14020322. [PMID: 36833249 PMCID: PMC9956579 DOI: 10.3390/genes14020322] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/28/2023] Open
Abstract
One of the most important steps in post-translational modifications of collagen type I chains is the hydroxylation of carbon-3 of proline residues by prolyl-3-hydroxylase-1 (P3H1). Genetic variants in P3H1 have been reported to cause autosomal recessive osteogenesis imperfecta (OI) type VIII. Clinical and radiographic examinations, whole-exome sequencing (WES), and bioinformatic analysis were performed in 11 Thai children of Karen descent affected by multiple bone fractures. Clinical and radiographic findings in these patients fit OI type VIII. Phenotypic variability is evident. WES identified an intronic homozygous variant (chr1:43212857A > G; NM_022356.4:c.2055 + 86A > G) in P3H1 in all patients, with parents in each patient being heterozygous for the variant. This variant is predicted to generate a new "CAG" splice acceptor sequence, resulting in the incorporation of an extra exon that leads to a frameshift in the final exon and subsequent non-functional P3H1 isoform a. Alternative splicing of P3H1 resulting in the absence of functional P3H1 caused OI type VIII in 11 Thai children of Karen descent. This variant appears to be specific to the Karen population. Our study emphasizes the significance of considering intronic variants.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
| | - Salita Angkurawaranon
- Division of Diagnostic Radiology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani 12120, Thailand
| | - Bjorn Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani 12120, Thailand
| | - Timothy C. Cox
- Departments of Oral & Craniofacial Sciences, School of Dentistry, and Pediatrics, School of Medicine, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - James R. Ketudat Cairns
- Center for Biomolecular Structure, Function and Application and School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
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Cardoso LCDA, Parra A, Gil CR, Arias P, Gallego N, Romanelli V, Kantaputra PN, Lima L, Llerena Júnior JC, Arberas C, Guillén-Navarro E, Nevado J, Tenorio-Castano J, Lapunzina P. Clinical Spectrum and Tumour Risk Analysis in Patients with Beckwith-Wiedemann Syndrome Due to CDKN1C Pathogenic Variants. Cancers (Basel) 2022; 14:cancers14153807. [PMID: 35954470 PMCID: PMC9367242 DOI: 10.3390/cancers14153807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
Beckwith-Wiedemann syndrome spectrum (BWSp) is an overgrowth disorder caused by imprinting or genetic alterations at the 11p15.5 locus. Clinical features include overgrowth, macroglossia, neonatal hypoglycaemia, omphalocele, hemihyperplasia, cleft palate, and increased neoplasm incidence. The most common molecular defect observed is hypomethylation at the imprinting centre 2 (KCNQ1OT1:TSS DMR) in the maternal allele, which accounts for approximately 60% of cases, although CDKN1C pathogenic variants have been reported in 5-10% of patients, with a higher incidence in familial cases. In this study, we examined the clinical and molecular features of all cases of BWSp identified by the Spanish Overgrowth Registry Initiative with pathogenic or likely pathogenic CDKN1C variants, ascertained by Sanger sequencing or next-generation sequencing, with special focus on the neoplasm incidence, given that there is scarce knowledge of this feature in CDKN1C-associated BWSp. In total, we evaluated 21 cases of BWSp with CDKN1C variants; 19 were classified as classical BWS according to the BWSp scoring classification by Brioude et al. One of our patients developed a mediastinal ganglioneuroma. Our study adds evidence that tumour development in patients with BWSp and CDKN1C variants is infrequent, but it is extremely relevant to the patient's follow-up and supports the high heterogeneity of BWSp clinical features associated with CDKN1C variants.
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Affiliation(s)
- Leila Cabral de Almeida Cardoso
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
| | - Alejandro Parra
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
| | - Cristina Ríos Gil
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
| | - Pedro Arias
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
| | - Natalia Gallego
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
| | | | - Piranit Nik Kantaputra
- Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Leonardo Lima
- Instituto Fernandes Figueira IFF/FIOCRUZ, Rio de Janeiro 22250-020, Brazil
| | | | - Claudia Arberas
- Hospital de Niños Dr. Ricardo Gutiérrez, Sección Genética Médica Gallo 1330, C1425EFD CABA, Argentina
| | - Encarna Guillén-Navarro
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- Sección Genética Médica, Servicio de Pediatría, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB-Arrixaca, Universidad de Murcia, El Palmar, 30120 Murcia, Spain
| | - Julián Nevado
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
| | | | - Jair Tenorio-Castano
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
| | - Pablo Lapunzina
- INGEMM-Instituto de Genética Médica y Molecular, Instituto de Investigación Sanitaria Hospital La Paz (IdiPAZ), Hospital Universitario La Paz, 28046 Madrid, Spain
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, 28046 Madrid, Spain
- ITHACA-European Reference Network, Hospital La Paz, 28046 Madrid, Spain
- Correspondence: or ; Tel.: +34-91-727-72-17; Fax: +34-91-207-10-40
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Kantaputra PN, Dejkhamron P, Intachai W, Ngamphiw C, Kawasaki K, Ohazama A, Krisanaprakornkit S, Olsen B, Tongsima S, Ketudat Cairns JR. Juberg-Hayward syndrome is a cohesinopathy, caused by mutation in ESCO2. Eur J Orthod 2021; 43:45-50. [PMID: 32255174 DOI: 10.1093/ejo/cjaa023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Juberg-Hayward syndrome (JHS; MIM 216100) is a rare autosomal recessive malformation syndrome, characterized by cleft lip/palate, microcephaly, ptosis, short stature, hypoplasia or aplasia of thumbs, and dislocation of radial head and fusion of humerus and radius leading to elbow restriction. OBJECTIVE To report for the first time the molecular aetiology of JHS. PATIENT AND METHODS Clinical and radiographic examination, whole exome sequencing, Sanger sequencing, mutant protein model construction, and in situ hybridization of Esco2 expression in mouse embryos were performed. RESULTS Clinical findings of the patient consisted of repaired cleft lip/palate, microcephaly, ptosis, short stature, delayed bone age, hypoplastic fingers and thumbs, clinodactyly of the fifth fingers, and humeroradial synostosis leading to elbow restriction. Intelligence is normal. Whole exome sequencing of the whole family showed a novel homozygous base substitution c.1654C>T in ESCO2 of the proband. The sister was homozygous for the wildtype variant. Parents were heterozygous for the mutation. The mutation is predicted to cause premature stop codon p.Arg552Ter. Mutations in ESCO2, a gene involved in cohesin complex formation, are known to cause Roberts/SC phocomelia syndrome. Roberts/SC phocomelia syndrome and JHS share similar clinical findings, including autosomal recessive inheritance, short stature, cleft lip/palate, severe upper limb anomalies, and hypoplastic digits. Esco2 expression during the early development of lip, palate, eyelid, digits, upper limb, and lower limb and truncated protein model are consistent with the defect. CONCLUSIONS Our study showed that Roberts/SC phocomelia syndrome and JHS are allelic and distinct entities. This is the first report demonstrating that mutation in ESCO2 causes JHS, a cohesinopathy.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
| | - Prapai Dejkhamron
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Worrachet Intachai
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Katsushige Kawasaki
- Division of Oral Anatomy, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Atsushi Ohazama
- Division of Oral Anatomy, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Suttichai Krisanaprakornkit
- Center of Excellence in Oral Biology, Chiang Mai University, Chiang Mai, Thailand.,Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Bjorn Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Sissades Tongsima
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Jame R Ketudat Cairns
- School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
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Kantaputra PN, Chuamanochan M, Kiratikanon S, Chiewchanvit S, Chaiwarith R, Intachai W, Quarto N, Tongsima S, McGrath JA, Ngamphiw C. A truncating variant in SERPINA3, skin pustules and adult-onset immunodeficiency. J Dermatol 2021; 48:e370-e371. [PMID: 33961311 DOI: 10.1111/1346-8138.15942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/12/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Mati Chuamanochan
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Salin Kiratikanon
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Siri Chiewchanvit
- Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Romanee Chaiwarith
- Division of Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand
| | - Natalina Quarto
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathum Thani, Thailand
| | - John A McGrath
- St John's Institute of Dermatology (Guy's Campus), King's College London, London, UK
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency (NSTDA), Thailand Science Park, Pathum Thani, Thailand
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Kantaputra PN, Dejkhamron P, Intachai W, Ngamphiw C, Ketudat Cairns JR, Kawasaki K, Ohazama A, Olsen B, Tongsima S, Angkurawaranon S. A novel P3H1 mutation is associated with osteogenesis imperfecta type VIII and dental anomalies. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:e198-e207. [PMID: 33737016 DOI: 10.1016/j.oooo.2021.01.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/16/2020] [Accepted: 01/24/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Our objective was to investigate the molecular etiology of osteogenesis imperfecta type VIII and dental anomalies in 4 siblings of a Karen tribe family. MATERIALS AND METHODS Four patients and their unaffected parents were studied by clinical and radiographic examination. In situ hybridization of P3h1 during early murine tooth development, whole-exome sequencing, and Sanger direct sequencing were performed. RESULTS A novel homozygous missense P3H1 mutation (NM_001243246.1; c.2141A>G; NP_001230175.1; p.Lys714Arg) was identified in all patients. Their unaffected parents were heterozygous for the mutation. The mutation is hypothesized to belong to isoform c of P3H1. Mutations in P3H1 are associated with autosomal recessive osteogenesis imperfecta type VIII. Hypodontia, a mesiodens, and single-rooted permanent second molars found in our patients have never been reported in patients with P3H1 mutations. Single-rooted second permanent molars or failure to form multiple roots implies effects of the P3H1 mutation on root development. CONCLUSIONS We report a novel P3H1 mutation as the underlying cause of osteogenesis imperfecta type VIII with dental anomalies. Our study suggests that isoform c of P3H1 is also a functional isoform of P3H1. We report, for the first time, to our knowledge, the association of P3H1 mutation and osteogenesis imperfecta type VIII with dental anomalies.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University.
| | - Prapai Dejkhamron
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani, Thailand
| | - James R Ketudat Cairns
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand; School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Katsushige Kawasaki
- Division of Oral Anatomy, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Atsushi Ohazama
- Division of Oral Anatomy, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Bjorn Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani, Thailand
| | - Salita Angkurawaranon
- Division of Diagnostic Radiology, Department of Radiology, Faculty of Medicine, Chiang Mai University
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Kantaputra PN, Dejkhamron P, Tongsima S, Ngamphiw C, Intachai W, Ngiwsara L, Sawangareetrakul P, Svasti J, Olsen B, Cairns JRK, Bumroongkit K. Juberg-Hayward syndrome and Roberts syndrome are allelic, caused by mutations in ESCO2. Arch Oral Biol 2020; 119:104918. [PMID: 32977150 DOI: 10.1016/j.archoralbio.2020.104918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/10/2020] [Accepted: 09/06/2020] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Juberg-Hayward syndrome (JHS; MIM 216100) is a rare autosomal recessive malformation syndrome, characterized by cleft lip/palate, microcephaly, ptosis, hypoplasia or aplasia of thumbs, short stature, dislocation of radial head, and fusion of humerus and radius leading to elbow restriction. A homozygous mutation in ESCO2 has recently been reported to cause Juberg-Hayward syndrome. Our objective was to investigate the molecular etiology of Juberg-Hayward syndrome in two affected Lisu tribe brothers. MATERIALS AND METHODS Two patients, the unaffected parents, and two unaffected siblings were studied. Clinical and radiographic examination, whole exome sequencing, Sanger sequencing, Western blot analysis, and chromosome testing were performed. RESULTS Two affected brothers had characteristic features of Juberg-Hayward syndrome, except for the absence of microcephaly. The elder brother had bilateral cleft lip and palate, short stature, humeroradial synostosis, and simple partial seizure with secondary generalization. The younger brother had unilateral cleft lip and palate, short stature, and dislocation of radial heads. The homozygous (c.1654C > T; p.Arg552Ter) mutation in ESCO2 was identified in both patients. The other unaffected members of the family were heterozygous for the mutation. The presence of humeroradial synostosis and radial head dislocation in the same family is consistent with both being in the same spectrum of forearm malformations. Chromosome testing of the affected patients showed premature centromere separation. Western blot analysis showed reduced amount of truncated protein. CONCLUSION Our findings confirm that a homozygous mutation in ESCO2 is the underlying cause of Juberg-Hayward syndrome. Microcephaly does not appear to be a consistent feature of the syndrome.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Dentaland Clinic, Chiang Mai, Thailand.
| | - Prapai Dejkhamron
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sissades Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani 12120, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency, Khlong Luang, Pathum Thani 12120, Thailand
| | - Worrachet Intachai
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Lukana Ngiwsara
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | | | - Jisnuson Svasti
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | - Bjorn Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - James R Ketudat Cairns
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand; School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Kanokkan Bumroongkit
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Kantaputra PN, Coury SA, Tan WH. Impaired dentin mineralization, supernumerary teeth, hypoplastic mandibular condyles with long condylar necks, and a TRPS1 mutation. Arch Oral Biol 2020; 116:104735. [PMID: 32442662 DOI: 10.1016/j.archoralbio.2020.104735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/14/2020] [Revised: 03/27/2020] [Accepted: 04/21/2020] [Indexed: 11/24/2022]
Abstract
Tricho-rhino-phalangeal syndrome type I, an autosomal dominant condition, is caused by heterozygous pathogenic variants in a zinc finger transcription factor, TRPS1, which has important roles in development of endochondral bones, teeth, and hair. Clinical manifestations of the patients include short stature, sparse, fine and slow-growing scalp hair, bulbous nose, supernumerary teeth, hip dysplasia, brachydactyly, and cone-shaped epiphyses of the phalangeal bones. OBJECTIVE To clinically, radiographically, and molecular genetically investigate a patient with tricho-rhino-phalangeal syndrome type I. MATERIALS AND METHODS Clinical and radiographic examination and mutation analysis of TRPS1 were performed. RESULTS Clinical and radiographic examination indicated the patient had tricho-rhino-phalangeal syndrome type I. Sequencing of the TRPS1 gene revealed a heterozygous pathogenic variant (c.2762G>A; p.Arg921Gln). Oral examination showed supernumerary teeth, large dental pulp spaces, dental pulp stones, microdontia of the maxillary permanent lateral incisors, absence of the mandibular left second premolar and short root of the maxillary right second premolar, and hypoplastic mandibular condyles with long condylar necks. CONCLUSION TRPS1 has an important function in regulating bone and dentin mineralization. Having large dental pulp spaces suggests that impaired dentin mineralization was the result of the TRPS1 pathogenic variant. This is the first patient with a TRPS1 pathogenic variant who had impaired dentin mineralization. This is also the third report showing the association between TRPS1 pathogenic variants and the presence of supernumerary teeth.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
| | - Stephanie A Coury
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Wen-Hann Tan
- Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
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9
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Kantaputra PN, Tripuwabhrut K, Intachai W, Carlson BM, Quarto N, Ngamphiw C, Tongsima S, Sonsuwan N. Treacher Collins syndrome: A novel TCOF1 mutation and monopodial stapes. Clin Otolaryngol 2020; 45:695-702. [PMID: 32351010 DOI: 10.1111/coa.13560] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 04/23/2020] [Accepted: 04/27/2020] [Indexed: 01/09/2023]
Abstract
Treacher Collins syndrome (TCS: OMIM 154500) is an autosomal dominant craniofacial disorder belonging to the heterogeneous group of mandibulofacial dysostoses. OBJECTIVE To investigate four Treacher Collins syndrome patients of the Sgaw Karen family living in Thailand. METHOD Clinical examination, hearing tests, lateral cephalometric analyses, Computed tomography, whole exome sequencing and Sanger direct sequencing were performed. RESULTS All of the patients affected with Treacher Collins syndrome carried a novel TCOF1 mutation (c.4138_4142del; p.Lys1380GlufsTer12), but clinically they did not have the typical facial gestalt of Treacher Collins syndrome, which includes downward-slanting palpebral fissures, colobomas of the lower eyelids, absence of eyelashes medial to the colobomas, malformed pinnae, hypoplastic zygomatic bones and mandibular hypoplasia. Lateral cephalometric analyses identified short anterior and posterior cranial bases, and hypoplastic maxilla and mandible. Computed tomography showed fusion of malleus and incus, sclerotic mastoid, hypoplastic middle ear space with a soft tissue remnant, dehiscence of facial nerve and monopodial stapes. CONCLUSION Treacher Collins syndrome in Sgaw Karen patients has not been previously documented. This is the first report of monopodial stapes in a TCS patient who had a TCOF1 mutation. The absence of a common facial phenotype and/or the presence of monopodial stapes may be the effects of this novel TCOF1 mutation.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
| | - Kanich Tripuwabhrut
- Division of Orthodontics, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand
| | - Bruce M Carlson
- Department of Anatomy and Cell Biology, University of Michigan, Ann Arbor, MI, USA
| | - Natalina Quarto
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
| | - Sissades Tongsima
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani, Thailand
| | - Nuntigar Sonsuwan
- Department of Otolaryngology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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10
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Nik Kantaputra P, Jotikasthira D, Carlson B, Wongmaneerung T, Quarto N, Khankasikum T, Powcharoen W, Intachai W, Tripuwabhrut K. TRPS1 mutation associated with trichorhinophalangeal syndrome type 1 with 15 supernumerary teeth, hypoplastic mandibular condyles with slender condylar necks and unique hair morphology. J Dermatol 2020; 47:774-778. [PMID: 32347565 DOI: 10.1111/1346-8138.15360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 01/23/2020] [Accepted: 03/29/2020] [Indexed: 11/27/2022]
Abstract
Trichorhinophalangeal syndrome type 1 (TRPS1; Online Mendelian Inheritance in Man #190350) is an autosomal dominant disorder caused by mutations in TRPS1. We report a Thai male with TRPS1 who carried a c.1842C>T (p.Arg615Ter) mutation. He had 15 supernumerary teeth, double mental foramina, hypoplastic mandibular condyles with slender condylar necks and unique ultrastructural hair findings. Body hair was absent. The hair in the area of a congenital melanocytic nevus had a greater number of hair cuticles than normal. Occipital hair had abnormal hair follicles and cuticles. The scale edges of the hair cuticles were detached and rolled up. Hypoplastic mandibular condyles with slender condylar necks, double mental foramina and the rolled up edges of hair cuticles have not been reported in patients with TRPS1.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
| | - Dhirawat Jotikasthira
- Division of Orthodontics, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Bruce Carlson
- Department of Anatomy and Cell Biology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Natalina Quarto
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, California, USA
| | | | - Warit Powcharoen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Worrachet Intachai
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Kanich Tripuwabhrut
- Division of Orthodontics, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
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11
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Kantaputra PN, Intachai W, Carlson BM, Pruksachatkunakorn C. Clouston syndrome with dental anomalies, micropores of hair shafts and absence of palmoplantar keratoderma. J Dermatol 2020; 47:e90-e91. [PMID: 31960478 DOI: 10.1111/1346-8138.15236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
| | - Worrachet Intachai
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Bruce M Carlson
- Department of Anatomy and Cell Biology, University of Michigan, Ann Arbor, Michigan, USA
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12
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Kantaputra PN, Sirirungruangsarn Y, Visrutaratna P, Petcharunpaisan S, Carlson BM, Intachai W, Sudasna J, Kampuansai J, Dejkhamron P. WNT1-associated osteogenesis imperfecta with atrophic frontal lobes and arachnoid cysts. J Hum Genet 2019; 64:291-296. [DOI: 10.1038/s10038-019-0565-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/03/2018] [Accepted: 01/09/2019] [Indexed: 01/07/2023]
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13
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Acharya B, Adewumi AO, Al-Batayneh OB, Alcaraz A, Allareddy V, Alrayyes SM, Amini H, Andrews P, Beavers KS, Brecher E, Brewer RJ, Brownstein JN, Casamassimo PS, Cehreli ZC, Chi DL, Christensen JR, Christensen SJ, Cooke M, da Fonseca MA, Dahlke WO, Donly KJ, Fida Z, Fields H, Flaitz CM, Florez FLE, Fournier S, Fuks AB, Geneser MK, Gilbaugh GJ, Gosnell ES, Gross EL, Gross SH, Guelmann M, Hallett KB, Hammersmith KJ, Haney KL, Hodgson BD, Holan G, Hughes CC, Ignelzi MA, Jackson JG, Jamjoom F, Kanellis MJ, Kantaputra PN, Khajotia SS, Knobloch L, Kupietzky A, Law CS, Leary KS, Mabry TR, Marek CL, McTigue DJ, Meyer BD, Nelson T, Ng MW, Nowak AJ, Nuni E, Owais AI, Pahel BT, Quinonez RB, Ram D, Rayes SK, Sasa IS, Schwartz SB, Seale NS, Sheats RD, Shenkin JD, Sivaraman SS, Skotowski MC, Slayton RL, Spadinger A, Stark TR, Stenberg WV, Studen-Pavlovich D, Sulyanto RM, Tanbonliong T, Thikkurissy S, Timmons SR, Tinanoff N, Townsend JA, Velan E, Vieira AM, Vinall CV, Waggoner WF, Wallen J, Weber-Gasparoni K, Wells MH, Wood AJ, Wright JT, Yar Khan V, Yepes JF, Yoon AJS, Zawaideh F. Contributors. Pediatr Dent 2019. [DOI: 10.1016/b978-0-323-60826-8.00108-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Kantaputra PN, Chinadet W, Intachai W, Ngamphiw C, Ketudat Cairns JR, Tongsima S. Isolated dentinogenesis imperfecta with glass-like enamel caused by COL1A2 mutation. Am J Med Genet A 2018; 176:2919-2923. [PMID: 30152103 DOI: 10.1002/ajmg.a.40501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/02/2018] [Accepted: 07/14/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Faculty of Dentistry, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand.,DENTALAND CLINIC, Chiang Mai, Thailand
| | - Wannapa Chinadet
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Faculty of Dentistry, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Faculty of Dentistry, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Chumpol Ngamphiw
- Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), Khlong Luang, Pathum Thani, Thailand
| | - James R Ketudat Cairns
- School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand.,Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | - Sissades Tongsima
- Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), Khlong Luang, Pathum Thani, Thailand
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15
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Kantaputra PN, Kapoor S, Verma P, Intachai W, Ketudat Cairns JR. Split hand-foot malformation and a novel WNT10B mutation. Eur J Med Genet 2018; 61:372-375. [PMID: 29427788 DOI: 10.1016/j.ejmg.2018.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/29/2018] [Accepted: 02/02/2018] [Indexed: 01/08/2023]
Abstract
We report an Indian girl with split-hand/foot malformation (SHFM), sparse hair, and interrupted eyebrows, who carries a novel homozygous deletion c.695_697delACA in WNT10B. The variant is deduced to cause an in-frame deletion of Asn residue 232 (p.Asn232del). According to the protein model, this single amino acid deletion at the critical position in the protein structure is likely to severely affect the protein structure and function. This deletion is likely to lead decreased lifetime and make it unable to bind to its receptors and other ligands. The patient and all family members had normal bone density and they were not obese like some of the patients with WNT10B variants. Here we report a patient with SHFM6 who carried a novel WNT10B mutation. Sparse hair and interrupted eyebrows may be associated findings of SHFM6.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; DENTALAND CLINIC, Chiang Mai, Thailand.
| | - Seema Kapoor
- Pediatrics Research & Genetic Lab, Department of Pediatrics, MAMC & Associated Lok Nayak Hospital, New Delhi, India
| | - Prashant Verma
- Pediatrics Research & Genetic Lab, Department of Pediatrics, MAMC & Associated Lok Nayak Hospital, New Delhi, India
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - James R Ketudat Cairns
- School of Chemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand; Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
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16
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Kunotai W, Ananpornruedee P, Lubinsky M, Pruksametanan A, Kantaputra PN. Making extra teeth: Lessons from a TRPS1 mutation. Am J Med Genet A 2016; 173:99-107. [PMID: 27706911 DOI: 10.1002/ajmg.a.37967] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 08/21/2016] [Indexed: 01/16/2023]
Abstract
A Thai mother and her two daughters were affected with tricho-rhino-phalangeal syndrome type I. The daughters had 15 and 18 supernumerary teeth, respectively. The mother had normal dentition. Mutation analysis of TRPS1 showed a novel heterozygous c.3809_3811delACTinsCATGTTGTG mutation in all. This mutation is predicted to cause amino acid changes in the Ikaros-like zinc finger domain near the C-terminal end of TRPS1, which is important for repressive protein function. The results of our study and the comprehensive review of the literature show that pathways of forming supernumerary teeth appear to involve APC and RUNX2, the genes responsible for familial adenomatous polyposis syndrome and cleidocranial dysplasia, respectively. The final pathway resulting in supernumerary teeth seems to involve Wnt, a morphogen active during many stages of development. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Worawan Kunotai
- Department of Oral and Maxillofacial Surgery, Chonburi Hospital, Chonburi, Thailand
| | | | | | - Apitchaya Pruksametanan
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Faculty of Dentistry, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Faculty of Dentistry, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
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Affiliation(s)
| | - Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research; Chiang Mai University; Chiang Mai Thailand
- Division of Pediatric Dentistry; Faculty of Dentistry; Department of Orthodontics and Pediatric Dentistry; Chiang Mai University; Chiang Mai Thailand
- Dentaland Clinic; Chiang Mai Thailand
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18
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Kantaputra PN, Intachai W, Auychai P. All enamel is not created equal:Supports from a novel FAM83H mutation. Am J Med Genet A 2015; 170A:273-6. [PMID: 26481691 DOI: 10.1002/ajmg.a.37406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/31/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,Dentaland Clinic, Chiang Mai, Thailand
| | - Worrachet Intachai
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Prim Auychai
- Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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19
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Wattanarat O, Kantaputra PN. Preaxial polydactyly associated with a MSX1 mutation and report of two novel mutations. Am J Med Genet A 2015; 170A:254-9. [PMID: 26463473 DOI: 10.1002/ajmg.a.37417] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 09/22/2015] [Indexed: 01/23/2023]
Abstract
We report two novel heterozygous missense MSX1 mutations in two Thai families (c.739C>T; p.Pro247Ser and c.607G>A; p.Ala203Thr). The p.Ala203Thr mutation was found in a female patient, her sister, and their father and is associated with unilateral cleft lip and palate, hypodontia, and microdontia. The p.Pro247Ser mutation was found in a three-generation Thai family and was associated with bilateral cleft lip and palate, hypodontia, microdontia, and dens invaginatus. The proband also had preaxial polydactyly of the left hand. The role of Msx1 in limb development in mice is discussed. Intrafamilial variability of the phenotypes is clearly evident. This is the first time that a limb anomaly has been reported to be associated with a mutation in MSX1.
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Affiliation(s)
- Onnida Wattanarat
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand.,Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.,DENTALAND CLINIC, Chiang Mai, Thailand
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Abstract
Isolated or nonsyndromic tooth agenesis or hypodontia is the most common human malformation. It has been associated with mutations in MSX1, PAX9, EDA, AXIN2, EDAR, EDARADD, and WNT10A. GREMLIN 2 (GREM2) is a strong bone morphogenetic protein (BMP) antagonist that is known to regulate BMPs in embryogenesis and tissue development. Bmp4 has been shown to have a role in tooth development. Grem2(-/-) mice have small, malformed maxillary and mandibular incisors, indicating that Grem2 has important roles in normal tooth development. Here, we demonstrate for the first time that GREM2 mutations are associated with human malformations, which include isolated tooth agenesis, microdontia, short tooth roots, taurodontism, sparse and slow-growing hair, and dry and itchy skin. We sequenced WNT10A, WNT10B, MSX1, EDA, EDAR, EDARADD, AXIN2, and PAX9 in all 7 patients to rule out the effects of other ectodermal dysplasias and other tooth-related genes and did not find mutations in any of them. GREM2 mutations exhibit variable expressivity even within the same families. The inheritance is autosomal dominant with incomplete penetrance. The expression of Grem2 during the early development of mouse teeth and hair follicles and the evaluation of the likely effects of the mutations on the protein structure substantiate these new findings.
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Affiliation(s)
- P N Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand Dentaland Clinic, Chiang Mai, Thailand
| | - M Kaewgahya
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | | | - P Vogel
- Department of Veterinary Pathology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - K Kawasaki
- Division of Oral Anatomy, Department of Oral Biological Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - A Ohazama
- Division of Oral Anatomy, Department of Oral Biological Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - J R Ketudat Cairns
- School of Biochemistry, Institute of Science, and Center for Biomolecular Structure, Function and Application, Suranaree University of Technology, Nakhon Ratchasima, Thailand Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
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Kantaputra PN. Response to the letter to the editor by Idil Kurtulus-Waschulewski; Gerhard Wahl, Prof. Dr.; Katalyn Dittrich; Volker Schuster. Eur J Med Genet 2015; 58:201. [PMID: 25662394 DOI: 10.1016/j.ejmg.2015.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 01/23/2015] [Indexed: 11/16/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai 50200, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand; Dentaland Clinic, Chiang Mai 50200, Thailand.
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Tananuvat N, Charoenkwan P, Ohazama A, Ketuda Cairns JR, Kaewgahya M, Kantaputra PN. Root dentin anomaly and a PLG mutation. Eur J Med Genet 2014; 57:630-5. [DOI: 10.1016/j.ejmg.2014.09.006] [Citation(s) in RCA: 8] [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] [Received: 06/17/2014] [Accepted: 09/21/2014] [Indexed: 10/24/2022]
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Kantaputra PN, Kaewgahya M, Wiwatwongwana A, Wiwatwongwana D, Sittiwangkul R, Iamaroon A, Dejkhamron P. Cutis laxa with pulmonary emphysema, conjunctivochalasis, nasolacrimal duct obstruction, abnormal hair, and a novel FBLN5 mutation. Am J Med Genet A 2014; 164A:2370-7. [PMID: 24962763 DOI: 10.1002/ajmg.a.36630] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 05/16/2014] [Indexed: 12/15/2022]
Abstract
We report on a 4-year-old girl with autosomal recessive cutis laxa, type IA, or pulmonary emphysema type (ARCL1A; OMIM #219100), with loose and wrinkled skin, mitral and tricuspid valve prolapse, conjunctivochalasis, obstructed nasolacrimal ducts, hypoplastic maxilla, and early childhood-onset pulmonary emphysema. Mutation analysis of FBLN5 showed a homozygous c.432C>G missense mutation, and heterozygosity in the parents. This is predicted to cause amino acid substitution p.Cys144Trp. Conjunctivochalasis or redundant folds of conjunctiva and obstructed nasolacrimal ducts have not been reported to be associated with FBLN5 mutations. Histopathological study of the conjunctival biopsy showed that most blood vessels had normal elastic fibers. The gingiva appeared normal, but histologically elastic fibers were defective. Scanning electron micrography of scalp hair demonstrated hypoplastic hair follicles. The cuticles appear intact underneath the filamentous meshwork.
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Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Dentaland Clinic, Chiang Mai, Thailand
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Kantaputra PN, Bongkochwilawan C, Kaewgahya M, Ohazama A, Kayserili H, Erdem AP, Aktoren O, Guven Y. Enamel-Renal-Gingival syndrome, hypodontia, and a novel FAM20A mutation. Am J Med Genet A 2014; 164A:2124-8. [PMID: 24756937 DOI: 10.1002/ajmg.a.36579] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 03/22/2014] [Indexed: 01/05/2023]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Chiang Mai, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; Dentaland Clinic, Chiang Mai, Thailand
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Kantaputra PN, Kayserili H, Guven Y, Kantaputra W, Balci MC, Tanpaiboon P, Tananuvat N, Uttarilli A, Dalal A. Clinical manifestations of 17 patients affected with mucopolysaccharidosis type VI and eight novelARSBmutations. Am J Med Genet A 2014; 164A:1443-53. [DOI: 10.1002/ajmg.a.36489] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 01/20/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Center of Excellence, Chiang Mai University; Craniofacial Genetics Laboratory, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry; Faculty of Dentistry, Chiang Mai University; Chiang Mai Thailand
- DENTALAND CLINIC; Chiang Mai Thailand
| | - Hulya Kayserili
- Medical Genetics Department; Istanbul Medical Faculty; Istanbul University; Istanbul Turkey
| | - Yeliz Guven
- Faculty of Dentistry; Department of Pedodontics; Istanbul University; Istanbul Turkey
| | | | - Mehmet C. Balci
- Division of Nutrition and Metabolism, Department of Pediatrics; Istanbul Medical Faculty, Istanbul University; Istanbul Turkey
| | - Pranoot Tanpaiboon
- Division of Genetics and Metabolism; Children's National Medical Center; Washington District of Columbia
| | - Napaporn Tananuvat
- Faculty of Medicine; Department of Ophthalmology; Chiang Mai University; Chiang Mai Thailand
| | - Anusha Uttarilli
- Diagnostics Division; Centre for DNA Fingerprinting and Diagnostics; Hyderabad India
| | - Ashwin Dalal
- Diagnostics Division; Centre for DNA Fingerprinting and Diagnostics; Hyderabad India
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Guven Y, Altunoglu U, Aktoren O, Uyguner ZO, Kayserili H, Kaewkahya M, Kantaputra PN. Twins with hereditary sensory and autonomic neuropathy type IV with preserved periodontal sensation. Eur J Med Genet 2014; 57:240-6. [PMID: 24631696 DOI: 10.1016/j.ejmg.2014.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 01/05/2014] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
Abstract
Turkish twin brothers affected with hereditary sensory and autonomic neuropathy type IV (HSAN IV) are reported. Their clinical findings were generally typical for HSAN IV. Interestingly they both had preserved periodontal sensation. Mutation analysis of the NTRK1 gene showed a homozygous c.2001C>T substitution in exon 15 in both twins. This base substitution is predicted to change a polar, positively charged amino acid arginine to the highly active amino acid cystein at position 654 (p.Arg654Cys). The parents were heterozygous for the mutation. This mutation has been reported previously in one Japanese and one Arab patients. The preserved periodontal sensation has not previously been reported in patients affected with HSAN IV. This preserved sensation in our patients might have been through Ruffini endings, the periodontal mechanoreceptors which have been reported to be present in TrkA knockout mice. Here we report the first twins affected with HSAN IV and the observation that periodontal sensation is not affected by mutation in NTRK1.
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Affiliation(s)
- Yeliz Guven
- Department of Pedodontics, Faculty of Dentistry, Istanbul University, 34093 Istanbul, Turkey
| | - Umut Altunoglu
- Medical Genetics Department, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
| | - Oya Aktoren
- Department of Pedodontics, Faculty of Dentistry, Istanbul University, 34093 Istanbul, Turkey
| | - Zehra Oya Uyguner
- Medical Genetics Department, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
| | - Hulya Kayserili
- Medical Genetics Department, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
| | - Massupa Kaewkahya
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Thailand; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Thailand
| | - Piranit Nik Kantaputra
- Center of Excellence in Medical Genetics Research, Chiang Mai University, Thailand; Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Thailand; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Thailand; DENTALAND CLINIC, Chiang Mai 50200, Thailand.
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Kantaputra PN, Kayserili H, Güven Y, Kantaputra W, Balci MC, Tanpaiboon P, Uttarilli A, Dalal A. Oral manifestations of 17 patients affected with mucopolysaccharidosis type VI. J Inherit Metab Dis 2014; 37:263-8. [PMID: 23974652 DOI: 10.1007/s10545-013-9645-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 07/14/2013] [Accepted: 07/22/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To assess oral manifestations of 17 patients with mucopolysaccharidosis type VI (MPS VI) or Maroteaux-Lamy syndrome. METHODS We performed comprehensive oral examinations in 17 patients with MPS VI. Panoramic radiographs was performed only in 14 patients. All patients were of Thai, Turkish, and Indian origins. Ten of 17 patients had enzyme replacement therapy (ERT) (Naglazyme). Most Turkish patients (10/11) were on ERT. The Thai and Indian patients have never had ERT. RESULTS Oral and radiographic examinations showed that hypoplastic mandibular condyles (93.3 %), malposition of unerupted teeth (92.9 %), large dental follicles (92.3 %), anterior open bite (86.7 %), maxillary constriction (56.3 %), and taurodontism (53.8 %) were common among patients with MPS VI. Newly recognized oral findings found in our study included taurodontism, long tooth roots, abnormal frenum, missing teeth, supernumerary teeth, and microdontia. Two patients who started ERT prior to 3 years old did not develope anterior open bite and one of them had mildly affected mandibular condyles. CONCLUSION Our study provides the most comprehensive study of oral manifestations in patients with MPS VI. Receiving ERT at very young ages may lessen craniofacial malformations including hypoplasic mandibular condyles and anterior open bite. Oral manifestations can be used as diagnostic features for MPS VI prior to assessing leukocyte ARSB activity or urinary excretion of dermatan sulfate.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand,
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Kantaputra PN, Kaewgahya M, Khemaleelakul U, Dejkhamron P, Sutthimethakorn S, Thongboonkerd V, Iamaroon A. Enamel-renal-gingival syndrome and FAM20A mutations. Am J Med Genet A 2013; 164A:1-9. [PMID: 24259279 DOI: 10.1002/ajmg.a.36187] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 07/11/2013] [Indexed: 01/05/2023]
Abstract
The enamel-renal syndrome of amelogenesis imperfecta (AI) and nephrocalcinosis, and the amelogenesis imperfecta-gingival fibromatosis syndrome have both been associated with mutations in FAM20A. We report on two unrelated Thai patients with three novel and one previously reported mutations in FAM20A with findings suggesting both disorders, including hypoplastic AI, gingival fibromatosis, unerupted teeth, aggressive periodontitis, and nephrocalcinosis/nephrolithiasis. Additional findings consisted of a supernumerary premolar, localized aggressive periodontitis, thin alveolar bone, vitamin D deficiency-associated hyperparathyroidism, and heterotopic calcification in other tissues, including lungs, dental pulp, gingiva, dental follicles, and periodontal tissues, and early cessation of limited menstruation. Greater promotory activity of urine on calcium oxalate crystal growth compared to controls may help to explain the pathogenesis, and suggest that FAM20A mutations can contribute to nephrocalcinosis/nephrolithiasis. Our findings expand the phenotypic spectrum of FAM20A mutations. Since both of our patients and a large number of previously reported cases had all the important features of both syndromes, including AI, renal anomalies, and gingival fibromatosis, we are convinced that these two disorders actually are the same entity. The name of enamel-renal-gingival syndrome is suggested.
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Chiang Mai University, Chiang Mai, Thailand; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand; DENTALAND CLINIC, Chiang Mai, Thailand
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Kantaputra PN, Sittiwangkul R, Sonsuwan N, Romanelli V, Tenorio J, Lapunzina P. A novel mutation inCDKN1Cin sibs with Beckwith-Wiedemann syndrome and cleft palate, sensorineural hearing loss, and supernumerary flexion creases. Am J Med Genet A 2012. [DOI: 10.1002/ajmg.a.35663] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Kantaputra PN, Chinadet W, Ohazama A, Kono M. Dyschromatosis symmetrica hereditaria with long hair on the forearms, hypo/hyperpigmented hair, and dental anomalies: report of a novel ADAR1 mutation. Am J Med Genet A 2012; 158A:2258-65. [PMID: 22821605 DOI: 10.1002/ajmg.a.35488] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Accepted: 04/30/2012] [Indexed: 12/18/2022]
Abstract
We report on a father and his two children who are affected with dyschromatosis symmetrica hereditaria (DSH). Mutation analysis of ADAR1 gene demonstrated a novel splice acceptor site mutation in intron 10, IVS10-2A>C. The hair on the forearm of the affected father became longer, larger in diameter, and hypopigmented (white) after age 40 years. Hyperpigmented hair was also found in normal and hypopigmented skin. The colors of the hair and the skin did not correlate. Transmission electron micrography of cortical keratinocytes of the hair follicles showed that normal hair contained more keratinocytes than those of hyperpigmented and hypopigmented hair. The keratinocytes of the hyperpigmented hair were larger than those of normal and hypopigmented hair and those of the normal hair were larger than those of the hypopigmented hair. The affected daughter had dens evaginatus of the mandibular right second premolar and the son had dens invaginatus of the maxillary permanent lateral incisors. Expression of Adar1 gene during mouse tooth development is demonstrated.
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Affiliation(s)
- Piranit Nik Kantaputra
- Craniofacial Genetics Laboratory, Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
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Kantaputra PN, van den Ouweland A, Sangruchi T, Limwongse C. Severe plexiform facial neurofibromatosis, type 1 with underdeveloped eyes and a novel NF1 mutation. Am J Med Genet A 2012; 158A:1750-3. [PMID: 22678692 DOI: 10.1002/ajmg.a.35422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 03/26/2012] [Indexed: 11/11/2022]
Abstract
A Thai woman, who was affected with neurofibromatosis type 1, was followed up and re-evaluated at ages 45, 61, and 67 years. Her mother and her three brothers were also affected. The proposita was very severely affected. She was born blind with underdeveloped eyeglobes and had large plexiform neurofibromas on her face. Her eyelids were gigantic and tears drained from the orifice between them. Cutaneous neurofibromas were observed all over her body. A novel mutation c.4821delA was identified in NF1 gene, which predicted truncation of neurofibromin (p.Leu1607fs).
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Affiliation(s)
- Piranit Nik Kantaputra
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry; Craniofacial Genetics Laboratory, Faculty of Dentistry, Chiang Mai University; Dental and Clinic, Chiang Mai, Thailand.
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Kayserili H, Kantaputra PN. Multiple supernumerary molars, anterior openbite, and large ear lobules in mucopolysaccharidosis type VI patient. Am J Med Genet A 2012; 158A:1798-800. [DOI: 10.1002/ajmg.a.35420] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 03/26/2012] [Indexed: 11/06/2022]
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Kantaputra PN, Thawanaphong S, Issarangporn W, Klangsinsirikul P, Ohazama A, Sharpe P, Supanchart C. Long-term survival in infantile malignant autosomal recessive osteopetrosis secondary to homozygous p.Arg526Gln mutation in CLCN7. Am J Med Genet A 2012; 158A:909-16. [DOI: 10.1002/ajmg.a.35264] [Citation(s) in RCA: 10] [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] [Received: 02/09/2011] [Accepted: 12/19/2011] [Indexed: 01/23/2023]
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Kantaputra PN, Chiewcharnvalijkit K, Wairatpanich K, Malikaew P, Aramrattana A. Children's attitudes toward behavior management techniques used by dentists. J Dent Child (Chic) 2007; 74:4-9. [PMID: 18430348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
PURPOSE Many behavior management techniques (BMTs) are used in dental offices. The objective of this study was to evaluate how children felt towards the BMT used in the dental office by using the newly invented "attitude meter." METHODS Two hundred forty children 6 to 17 years old were selected randomly to participate in the study. Each student was asked to watch 8 video scenes of live BMTs. The BMTs used consisted of: (1) tell-show-do (TSD); (2) rewards; (3) general anesthesia; (4) papoose board; (5) hand-holding; (6) mouthprop; (7) voice control; and (8) hand-over-mouth exercise (HOME). After watching each BMT scene, the children were instructed to express their attitude towards the BMT by drawing a "line of favor"--the newly invented attitude meter. RESULTS It was found that TSD and HOME were the most and least favorite BTM, respectively. Those who had dental experience appeared to have worse attitudes. Older and younger children had different opinions towards some BMTs. The older children preferred the papoose board and hand-holding to the mouthprop. All children preferred the use of the papoose board and hand-holding to voice control. CONCLUSIONS Children appeared to judge a behavior management technique according to the way it looked. The "line of favor" is a reliable tool to measure attitudes of children over 6 years old.
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Affiliation(s)
- P N Kantaputra
- Dentaland Clinic; Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
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Kantaputra PN, Tanpaiboon P. Response to: Microcephalic osteodysplastic primordial dwarfism with severe microdontia and skin anomalies by Dr. Judith Hall. Am J Med Genet A 2005. [DOI: 10.1002/ajmg.a.30634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kantaputra PN. Thirteen-year-follow up report on mesomelic dysplasia, Kantaputra type (MDK), and comments on the paper of the second reported family of MDK by Shears et al. Am J Med Genet A 2004; 128A:1-5. [PMID: 15211646 DOI: 10.1002/ajmg.a.20642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Piranit Nik Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
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Abstract
Several ectodermal dysplasia syndromes, including Ectrodactyly-Ectodermal dysplasia-Clefting (EEC) and Ankyloblepharon-Ectodermal Dysplasia-Clefting (AEC) syndromes, are known to result from mutations in the p63 gene. We investigated whether Rapp-Hodgkin syndrome (RHS) is also caused by mutations in the p63 gene. We identified a heterozygous de novo germline missense mutation, S545P, in the sterile-alpha-motif (SAM) domain of p63, in a Thai patient affected with RHS. This is the first genetic abnormality to be described in RHS. The amino acid substitution is the most downstream missense mutation in p63 reported thus far. Histological assessment of a skin biopsy from the patient's palm showed hyperkeratosis and keratinocyte cell-cell detachment in the upper layers of the epidermis, along with numerous apoptotic keratinocytes. Collectively, these investigations demonstrate that RHS is also caused by mutations in p63 and that the clinical similarities to AEC syndrome are paralleled by the nature of the inherent mutation.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
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Kantaputra PN, Kunachaichote J, Patikulsila P. Mental retardation, obesity, mandibular prognathism with eye and skin anomalies (MOMES syndrome): a newly recognized autosomal recessive syndrome. Am J Med Genet 2001; 103:283-8. [PMID: 11746007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
We report two daughters of a Thai family affected with mental retardation, delayed speech, obesity, craniofacial manifestations, and ocular anomalies. Craniofacial manifestations included macrocephaly, maxillary hypoplasia, mandibular prognathism, and crowding of teeth. Ocular anomalies consisted of blepharophimosis, blepharoptosis, decreased visual acuity, abducens palsy, hyperopic astigmatism, and accommodative esotropia. Chronic atopic dermatitis, lateral deviation of the great toes, and cone-shaped epiphyses of the toes were observed. The disorder is suggested to be autosomal recessive. The combination of findings found in our patients has not hitherto been described.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand.
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Kantaputra PN. A newly recognized syndrome of skeletal dysplasia with opalescent and rootless teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2001; 92:303-7. [PMID: 11552148 DOI: 10.1067/moe.2001.116819] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A Thai girl with skeletal dysplasia and dental anomalies was seen. Her anomalies consisted of disproportionately short stature, short neck, broad and depressed nasal bridge, broad chest in the anteroposterior dimension, kyphosis, widely spaced nipples, and protruded abdomen. Radiographic testing indicated that she had a large sella turcica, platyspondyly, hypoplastic acetabulum, and a small body of mandible. Both her deciduous and permanent teeth were equally opalescent, and most were rootless, with root development of the mandibular teeth more severely affected. Some maxillary roots were extremely short and tapered. Hypodontia was also observed. These findings represent a unique and hitherto undescribed syndrome of skeletal dysplasia with concomitant dental anomalies.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Denstry, Faculty of Dentistry, Chiang Mai University, Thailand.
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Abstract
We report digitotalar dysmorphism in a grandfather, father, and a daughter. All the affected members had clasped thumbs. The father had a short stature, large zygomatic arch and a flat mandibular condyle. The newly recognized findings found in the affected girl were large maxillary deciduous central incisors, a short proximal phalanx of the second finger, and a large subcutaneous hemangioma of the back. Her paternal grandfather had only congenital clasped thumbs. Congenital clasped thumb is a very heterogeneous anomaly and related to many syndromes. The findings in the reported family which are consistent with digitotalar dysmorphism, include congenital clasped thumbs, ulnar deviation of fingers, and a congenital vertical tali.
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Affiliation(s)
- P N Kantaputra
- Department of Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand.
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Abstract
A Thai man with Laurin-Sandrow syndrome (LSS, MIM 135750), the ninth reported case, is described. He had an underdeveloped nasal bone, scar-like seams under the nose, large heads of mandibular condyles, and brachymesophalangy of toes as newly observed findings of the syndrome. He also had mental retardation. The patient had duplication of ulna, with triphalangeal thumbs, and polydactyly of one finger. The triphalangeal thumbs were non-opposable. Carpal bones were malformed. Mirror image polydactyly of the toes was present. There were nine toes on the right and eight on the left. Joint abnormalities were observed at his elbows, wrists, knees, ankles, fingers, and toes. Synostosis of severely malformed tarsal bones was noted. This appears to be the first case of LSS with anomalies not limited to the nose and limbs. The relationship between LSS, tibial hemimelia-polysyndactyly-triphalangeal thumbs syndrome, triphalangeal thumb-polysyndactyly syndrome, preaxial polydactyly types 2 and 3, and Haas-type syndactyly is discussed.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand.
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Kantaputra PN, Chalidapong P. Are triphalangeal thumb-polysyndactyly syndrome (TPTPS) and tibial hemimelia-polysyndactyly-triphalangeal thumb syndrome (THPTTS) identical? A father with TPTPS and his daughter with THPTTS in a Thai family. Am J Med Genet 2000; 93:126-31. [PMID: 10869115 DOI: 10.1002/1096-8628(20000717)93:2<126::aid-ajmg9>3.0.co;2-s] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We report on a Thai man who had triphalangeal thumb-polysyndactyly syndrome (TPTPS, MIM *190605) and his daughter who had tibial hemimelia-polysyndactyly-triphalangeal thumb syndrome (THPTTS, MIM *188770). The father had polysyndactyly of triphalangeal thumbs, syndactyly of fingers, duplicated distal phalanx of the left great toe, brachymesophalangy of toes, and the absence of middle phalanges of some toes. He was diagnosed as having TPTPS. His daughter was more severely affected, having complete syndactyly of five-fingered hands in rosebud fashion (Haas-type syndactyly), hypoplastic tibiae, absent patellae, thick and displaced fibulae, preaxial polysyndactyly of triphalangeal toes, and cutaneous syndactyly of some toes, the manifestations being consistent with THPTTS. Having two different syndromes in the same family suggests that they are actually the same disorder. A literature survey showed that there have been several families where THPTTS occurred with TPTPS or Haas-type syndactyly (and/or preaxial polydactyly type 2, PPD2). In addition, all loci for TPTPS, THPTTS, and PPD2 (and/or PPD3) have been assigned to chromosome band 7q36. These findings support our conclusion that TPTPS, PPD2 (and/or PPD3), and Haas-type syndactyly are a single genetic en-tity (THPTTS). We propose to call the condition "tibial hemimelia-polysyndactyly-triphalangeal thumbs syndrome."
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MESH Headings
- Adult
- Child, Preschool
- Diagnosis, Differential
- Ectromelia/diagnostic imaging
- Ectromelia/genetics
- Family Health
- Female
- Foot Deformities, Congenital/diagnostic imaging
- Foot Deformities, Congenital/genetics
- Foot Deformities, Congenital/pathology
- Hand Deformities, Congenital/diagnostic imaging
- Hand Deformities, Congenital/genetics
- Hand Deformities, Congenital/pathology
- Humans
- Limb Deformities, Congenital/diagnostic imaging
- Limb Deformities, Congenital/genetics
- Limb Deformities, Congenital/pathology
- Male
- Polydactyly/diagnostic imaging
- Polydactyly/genetics
- Radiography
- Syndactyly/diagnostic imaging
- Syndactyly/genetics
- Syndrome
- Terminology as Topic
- Thumb/abnormalities
- Thumb/diagnostic imaging
- Tibia/abnormalities
- Tibia/diagnostic imaging
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand.
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Abstract
The cases of two patients with Robinow fetal face syndrome, an 11-year-old Thai boy and a newborn Caucasian girl, are described. The Thai boy had the characteristics typical of the dominant type of the syndrome with a few newly recognized signs, including communicating hydrocephalus, underdeveloped sinuses, short roots of the teeth, narrow and thick-floored pulp chambers, hypoplastic nipples, absent middle phalanges of the second to fifth toes, cone-shaped epiphyses of the second and fourth fingers and fifth toes, single creases of the fourth and fifth fingers, clinodactyly of the third fingers, dysmorphic umbilicus, and shawl scrotum. The girl had anomalies typical of the recessive type of the syndrome. She also had capillary hemangioma at the tip of her nose and hypoplastic fourth metatarsal bones, which are the newly recognized features of the recessive type. Infrequently reported clinical manifestations of the syndrome are discussed.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand.
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Kantaputra PN, Mongkolchaisup S. Juberg-Hayward syndrome: a new case report and clinical delineation of the syndrome. Clin Dysmorphol 1999; 8:123-7. [PMID: 10319201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
We report a new case of Juberg-Hayward (orocraniodigital) syndrome (JHS). This 7-year-old Thai boy had characteristic features together with a number of newly recognized findings. Those findings are humeroradial synostosis (HRS), carpal anomalies, simian crease, brachydactyly A4, widely spaced nipples, seizures and myopia. Clinical delineation and correlation between the phenotypes of the syndrome are discussed.
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Affiliation(s)
- P N Kantaputra
- Department of Paediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand
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Kantaputra PN, Pruksachatkunakorn C, Vanittanakom P. Rapp-Hodgkin syndrome with palmoplantar keratoderma, glossy tongue, congenital absence of lingual frenum and of sublingual caruncles: newly recognized findings. Am J Med Genet 1998; 79:343-6. [PMID: 9779799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
We report on a boy with Rapp-Hodgkin syndrome (RHS) or Rapp-Hodgkin ectodermal dysplasia. He had sparse, wiry, slow growing and uncombable hair, but no pili torti or pili canaliculi characteristic of RHS. He also had sparse eyelashes and eyebrows, and obstructed lacrimal puncta and epiphora. Bilateral bony external auditory canal stenosis led to hearing loss. The mouth was small with repaired bilateral cleft lip and palate. Oral manifestations included hypodontia, microdontia, unerupted mandibular premolars with well formed roots, large dental pulp spaces, enamel hypoplasia, multiple caries, glossy tongue, and congenital absence of lingual frenum and of sublingual caruncles including submandibular and sublingual salivary duct openings. Palmo-plantar keratoderma, unerupted premolars, congenital absence of lingual frenum, sublingual caruncles, glossy tongue, and pili canaliculi seen in the patient are newly recognized findings of this syndrome. Overlapping findings of RHS ectrodactyly-ectodermal dysplasia-clefting syndrome (EEC), and ankyloblepharon-ectodermal defects-cleft lip and palate syndrome (AEC) are discussed.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Thailand.
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Fujimoto M, Kantaputra PN, Ikegawa S, Fukushima Y, Sonta S, Matsuo M, Ishida T, Matsumoto T, Kondo S, Tomita H, Deng HX, D'urso M, Rinaldi MM, Ventruto V, Takagi T, Nakamura Y, Niikawa N. The gene for mesomelic dysplasia Kantaputra type is mapped to chromosome 2q24-q32. J Hum Genet 1998; 43:32-6. [PMID: 9609995 DOI: 10.1007/s100380050033] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mesomelic dysplasia Kantaputra type (MDK) (MIM *156232) is a new autosomal dominant skeletal dysplasia characterized by dwarfism, shortening of the forearms/lower-legs, carpal/tarsal synostosis, and dorsolateral foot deviation. We studied a Thai family in which 15 members in 3 generations were affected with MDK. With reference to the breakpoints of a balanced translocation [t(2;8)(q31;p21)] in patients from a previously reported Italian family with a skeletal dysplasia that appears similar to MDK, a linkage analysis was performed in the Thai family using 50 CA-repeat markers mapped to nearby regions (2q22-q34 and 8p24-p21) of the translocation breakpoints. The results clearly ruled out a linkage of MDK to marker loci at the 8p24-p21 region, whereas all nine affected members available for the study shared a haplotype at four loci (D2S2284, D2S326, D2S2188, and D2S2314) spanning about 22.7 cM in the 2q24-q32 region. The computer-assisted two-point linkage analysis revealed maximum logarithm of odds (lod) scores of 4.82, 4.21, 4.82, and 4.21 (theta = 0) at these loci, respectively. These data indicated that the MDK locus is in the vicinity of D2S2284 and D2S2188 loci that are most likely mapped to 2q24-q32.
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Affiliation(s)
- M Fujimoto
- Department of Human Genetics, Nagasaki University School of Medicine, Japan.
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Kantaputra PN, Gorlin RJ, Langer LO. Dominant mesomelic dysplasia, ankle, carpal, and tarsal synostosis type: a new autosomal dominant bone disorder. Am J Med Genet 1992; 44:730-7. [PMID: 1481840 DOI: 10.1002/ajmg.1320440606] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new type of mesomelic dysplasia was in 3 generations of a large Thai family. It is characterized by bilateral symmetrical marked shortening of the ulnae and shortening and bowing of the radii. The proximal fibula is usually short and synostoses are present between the tibia and fibula and the small malformed calcaneus and talus. The prominent calcanei on the ventral surfaces of the distal fibulae are a characteristic feature of the new type. Carpal and tarsal synostoses are present in some affected people. All affected individuals walk on the tips of their toes with the dorsal foot deviated laterally. The deformities of the radius and ulna somewhat resemble those of mesomelic dysplasia, Langer type, but otherwise the condition is distinctly different. This new mesomelic dysplasia is an autosomal dominant trait with complete penetrance and variable expressivity over 3 generations.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, School of Dentistry, Chiangmai University, Thailand
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Kantaputra PN, Gorlin RJ. Double dens invaginatus of molarized maxillary central incisors, premolarization of maxillary lateral incisors, multituberculism of the mandibular incisors, canines and first premolar, and sensorineural hearing loss. Clin Dysmorphol 1992; 1:128-36. [PMID: 1285271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Molarization and premolarization of anterior teeth have never been reported before. Double dens invaginatus is an extremely rare condition. We describe an affected female who had developmental delay and congenital progressive sensorineural hearing loss. Double dens invaginatus of molarized maxillary central incisors and premolarized maxillary lateral incisors were present. In addition, multituberculated mandibular incisors, canines, and first premolar were observed. Histologically, tooth structure was unremarkable. Family history of dental abnormalities and hearing loss was denied. Clinical and radiographic examinations were those performed when the patient was 7 and 13 years old. The basic defect is postulated to be of mesenchymal origin.
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Affiliation(s)
- P N Kantaputra
- Department of Pediatric Dentistry, School of Dentistry, Chiangmai University, Thailand
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