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Updated: Jan 23, 2026

Methods for the Study of the Zebrafish Maxillary Barbel
Published on: November 23, 2009
Mutations in FGFR3 gene associated with maxillary retrognathism
Ravi M Subrahmanya1, Sreenivas V Prasad2, Rajendra B Prasad3
1Department of Orthodontics and Dentofacial Orthopaedics, AB Shetty Memorial Institute of Dental Sciences, Nitte Deemed to Be University, Mangalore, Karnataka, India.
Researchers identified two novel mutations in the fibroblast growth factor receptor 3 (FGFR3) gene in an individual with retrognathic maxilla. This finding suggests potential genetic factors contributing to this condition.
Area of Science:
- Genetics
- Molecular Biology
- Craniofacial Development
Background:
- Fibroblast growth factor receptor (FGFR) signaling is crucial for bone development.
- Dysregulation of FGFR pathways is implicated in various bone disorders.
- Understanding FGFR's role can inform treatments for bone deformities.
Purpose of the Study:
- To investigate the role of the FGFR3 gene in individuals with retrognathic maxilla.
- To identify genetic variations in FGFR3 using molecular techniques.
- To assess the clinical significance of FGFR3 mutations in this condition.
Main Methods:
- Fundamental research involving patients with maxillary retrognathism.
- DNA extraction and Polymerase Chain Reaction (PCR) analysis of blood samples.
- Sequencing of the FGFR3 gene to detect mutations.
Main Results:
- Common single-nucleotide polymorphisms in FGFR3 exon 10 were not detected.
- Two novel mutations (Exon 3: A213G and Exon 3: A223A/G) were identified in one patient.
- No previously known mutations were found in the analyzed cohort.
Conclusions:
- The study identified two novel FGFR3 gene mutations in a patient with retrognathic maxilla.
- These findings highlight the potential involvement of FGFR3 in the etiology of this condition.
- Genetic-environmental interactions may influence the development of retrognathic maxilla.
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