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Updated: Apr 20, 2026
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Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
Published on: July 10, 2014
15.7K
Hypomaturation amelogenesis imperfecta caused by a novel SLC24A4 mutation
Curtis R Herzog1, Bryan M Reid1, Figen Seymen2
1Department of Biologic and Materials Sciences, University of Michigan School of Dentistry, Ann Arbor, MI, USA.
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
|December 3, 2014
Summary
This study identifies a new mutation in the SLC24A4 gene causing autosomal recessive pigmented hypomaturation amelogenesis imperfecta. This finding advances our understanding of the genetic basis of tooth enamel development.
Area of Science:
- Genetics
- Developmental Biology
- Biochemistry
Background:
- Amelogenesis imperfecta (AI) is a group of inherited disorders affecting tooth enamel formation.
- Autosomal recessive pigmented hypomaturation amelogenesis imperfecta is a specific subtype characterized by enamel discoloration and hypomaturation.
- Genetic factors play a crucial role in the complex process of enamel mineralization.
Observation:
- This case report details a patient with autosomal recessive pigmented hypomaturation amelogenesis imperfecta.
- Genetic analysis was performed to investigate the underlying molecular cause.
- A novel homozygous missense mutation was identified in the SLC24A4 gene.
Findings:
- The identified mutation is g.165151 T>G (c.1317 T>G; p.Leu436 Arg) in the SLC24A4 gene.
- SLC24A4 encodes a potassium-dependent sodium-calcium exchanger.
- This mutation is associated with impaired dental enamel hardening during tooth development.
Implications:
- This discovery expands the known genetic spectrum of amelogenesis imperfecta.
- Understanding the role of SLC24A4 in enamel mineralization offers insights into tooth development.
- Further research into SLC24A4 function could inform potential therapeutic strategies for enamel defects.
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