Identification of a novel mutation in the PAX9 gene in a family affected by oligodontia and other dental anomalies
Identifieur interne : 006992 ( Main/Exploration ); précédent : 006991; suivant : 006993Identification of a novel mutation in the PAX9 gene in a family affected by oligodontia and other dental anomalies
Auteurs : Vict Ria Tall N-Walton [Espagne] ; Maria Cristina Manzanares-Céspedes [Espagne] ; Sirpa Arte [Finlande] ; Patricia Carvalho-Lobato [Espagne] ; Ivan Valdivia-Gandur [Espagne] ; Antonio Garcia-Susperregui [Espagne] ; Francesc Ventura [Espagne] ; Pekka Nieminen [Finlande]Source :
- European Journal of Oral Sciences [ 0909-8836 ] ; 2007-12.
English descriptors
- KwdEn :
- Agenesis, Anamnestic data, Anomaly, Barcelona, Barcelona university, Buccal swabs, Codon, Congenital, Congenital absence, Dental agenesis, Dental anomalies, Dental development, Dental structures, Developmental factors, Diabetes mellitus, Exon, Family members, Genet, Heterozygote transition, Hypercholesterolemia, Hypodontia, Important role, Incisor, Molar, Msx1, Mutation, Novel mutation, Oligodontia, Panoramic radiographs, Pax9, Pax9 gene, Pax9 mutation, Phenotype, Premolar, Present study, Primary teeth, Same family, Second premolars, Secondary teeth, Systemic entities, Termination codon, Third molars, Tooth agenesis.
- Teeft :
- Agenesis, Anamnestic data, Anomaly, Barcelona, Barcelona university, Buccal swabs, Codon, Congenital, Congenital absence, Dental agenesis, Dental anomalies, Dental development, Dental structures, Developmental factors, Diabetes mellitus, Exon, Family members, Genet, Heterozygote transition, Hypercholesterolemia, Hypodontia, Important role, Incisor, Molar, Msx1, Mutation, Novel mutation, Oligodontia, Panoramic radiographs, Pax9, Pax9 gene, Pax9 mutation, Phenotype, Premolar, Present study, Primary teeth, Same family, Second premolars, Secondary teeth, Systemic entities, Termination codon, Third molars, Tooth agenesis.
Abstract
The objective of the present work was to study the phenotype and the genotype of three generations of a family affected by oligodontia and other dental anomalies. These family members also presented systemic conditions such as hypercholesterolemia, hypothyroidism, diabetes mellitus, scoliosis, and congenital cardiovascular anomalies. Clinical evaluation, panoramic radiographs, and anamnestic data were used for dental analysis. DNA extraction was carried out from gum samples or buccal swabs. A mutation was identified in six subjects across three generations affected by oligodontia, as well as different phenotypical manifestations, both systemic and oral. The previously undescribed PAX9 mutation was observed in the paired box (exon 2); this was a heterozygote transition of C175 to T, implying the change of arginine 59 for a termination codon. These results strongly suggested that the identified mutation was the etiological cause of the oligodontia. However, in two family members affected by both hypodontia and peg‐shaped upper lateral incisors, no mutations in the PAX9 and MSX1 genes were identified. This fact underscores the importance that other presently unknown genes and developmental factors have in tooth development and in the etiology of dental anomalies.
Url:
DOI: 10.1111/j.1600-0722.2007.00492.x
Affiliations:
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Le document en format XML
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<term>Barcelona university</term>
<term>Buccal swabs</term>
<term>Codon</term>
<term>Congenital</term>
<term>Congenital absence</term>
<term>Dental agenesis</term>
<term>Dental anomalies</term>
<term>Dental development</term>
<term>Dental structures</term>
<term>Developmental factors</term>
<term>Diabetes mellitus</term>
<term>Exon</term>
<term>Family members</term>
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<term>Heterozygote transition</term>
<term>Hypercholesterolemia</term>
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<term>Important role</term>
<term>Incisor</term>
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<term>Msx1</term>
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<term>Novel mutation</term>
<term>Oligodontia</term>
<term>Panoramic radiographs</term>
<term>Pax9</term>
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<term>Present study</term>
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<term>Same family</term>
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<front><div type="abstract" xml:lang="en">The objective of the present work was to study the phenotype and the genotype of three generations of a family affected by oligodontia and other dental anomalies. These family members also presented systemic conditions such as hypercholesterolemia, hypothyroidism, diabetes mellitus, scoliosis, and congenital cardiovascular anomalies. Clinical evaluation, panoramic radiographs, and anamnestic data were used for dental analysis. DNA extraction was carried out from gum samples or buccal swabs. A mutation was identified in six subjects across three generations affected by oligodontia, as well as different phenotypical manifestations, both systemic and oral. The previously undescribed PAX9 mutation was observed in the paired box (exon 2); this was a heterozygote transition of C175 to T, implying the change of arginine 59 for a termination codon. These results strongly suggested that the identified mutation was the etiological cause of the oligodontia. However, in two family members affected by both hypodontia and peg‐shaped upper lateral incisors, no mutations in the PAX9 and MSX1 genes were identified. This fact underscores the importance that other presently unknown genes and developmental factors have in tooth development and in the etiology of dental anomalies.</div>
</front>
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