نتایج جستجو برای: tooth agenesis
تعداد نتایج: 94093 فیلتر نتایج به سال:
We conducted a comprehensive meta-analysis of 4 case-control studies to explore the association between polymorphisms of Msh homeobox 1 (MSX1) and transforming growth factor-β1 (TGF-β1) genes and hypodontia. A total of 643 tooth agenesis cases and 733 healthy controls were included in this study. The meta-analysis results showed that the T allele and T carrier (CT + TT) of rs1095 in the MSX1 ge...
Transcription factors PAX9 and MSX1 play crucial roles in the development of permanent teeth at the bud stage, and their loss-of-function variants have been associated with congenital tooth agenesis. We sequenced the coding regions of the PAX9 and MSX1 genes from nine patients with non-syndromic tooth agenesis, and identified a missense mutation, P20L, of PAX9 in a single familial case involvin...
Previously, we found that the cause of autosomal dominant selective tooth agenesis in one family is a missense mutation resulting in an arginine-to-proline substitution in the homeodomain of MSX1. To determine whether the tooth agenesis phenotype may result from haploinsufficiency or a dominant-negative mechanism, we have performed biochemical and functional analyses of the mutant protein Msx1(...
To investigate the presence and/or agenesis of third molar (M3) tooth germs in orthodontics patients in Malaysian Malay and Chinese population and evaluate the relationship between presence and/or agenesis of M3 with different skeletal malocclusion patterns and sagittal maxillomandibular jaw dimensions. Pretreatment records of 300 orthodontic patients (140 males and 160 females, 219 Malaysian M...
OBJECTIVE In the present study, it is describe the phenotypical analysis and the mutational screening, for genes PAX9 and MSX1, of six families affected by severe forms of tooth agenesis associated with other dental anomalies and systemic entities. STUDY DESIGN Six families affected by severe tooth agenesis associated with other dental anomalies and systemic entities were included. Oral explo...
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