Related Experiment Video
Updated: Jul 11, 2026

02:42
Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
Published on: January 17, 2025
Radiation-induced craniofacial bone growth disturbances
Artur Gevorgyan1, Giorgio C La Scala, Peter C Neligan
1Division of Plastic Surgery, Hospital for Sick Children, University of Geneva Children's Hospital, Geneva, Switzerland.
The Journal of Craniofacial Surgery
|October 4, 2007
Summary
Radiotherapy for pediatric head and neck cancer can harm craniofacial bone growth. This review examines radiation effects and explores radioprotective agents to prevent growth inhibition in children.
Area of Science:
- Pediatric Oncology
- Radiation Oncology
- Craniofacial Biology
Background:
- Multimodality treatment, including radiotherapy, is essential for pediatric head and neck cancers.
- Radiation therapy, despite advancements, poses significant risks to growing craniofacial bone in children.
- Craniofacial bone growth inhibition is a major clinical challenge following pediatric cancer treatment.
Purpose of the Study:
- To review the clinical effects of radiotherapy on craniofacial bone growth in pediatric patients.
- To summarize experimental evidence on radiation's impact on bone growth using in vivo and in vitro models.
- To explore the potential of radioprotective agents in preventing radiation-induced craniofacial bone growth inhibition.
Main Methods:
- Review of clinical outcomes of radiotherapy in pediatric head and neck cancer patients.
- Analysis of experimental data from in vivo and in vitro studies on radiation effects on bone.
- Literature search for radioprotective agents targeting radiation-induced bone growth inhibition.
Main Results:
- Radiotherapy significantly impacts craniofacial bone development in children.
- Experimental models confirm detrimental effects of radiation on bone growth.
- Radioprotective agents show promise in mitigating radiation-induced bone growth inhibition.
Conclusions:
- Understanding radiation's effects on pediatric craniofacial bone is crucial.
- Radioprotective strategies are needed to preserve bone growth in treated children.
- Further research into effective radioprotective agents is warranted for pediatric cancer patients.
Related Concept Videos
Biological Effects of Radiation
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
Mutations
Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
