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Alveolar bone loss and aging: a model for the study in mice
Elken G Rivaldo1, Dalva P Padilha, Fernando N Hugo
1Geriatrics and Gerontology Institute, Pontifical Catholic University, Porto Alegre, Rio Grande do Sul, Brazil. elken@via-rs.net
Journal of Periodontology
|November 9, 2005
Summary
This study developed a mouse model for studying age-related alveolar bone loss (ABL). Young (3-month-old) mice showed significant ABL after surgery, indicating their suitability for aging research.
Area of Science:
- Oral biology
- Periodontology
- Gerontology
Background:
- Aging is linked to alveolar bone loss (ABL) in animal models.
- Developing a reliable mouse model for ABL and aging is crucial.
Purpose of the Study:
- To establish a mouse model for studying age-related alveolar bone loss (ABL).
- To investigate ABL in different age groups of mice.
Main Methods:
- Mucoperiosteal flap surgery (MFS) performed on 72 CF(1) mice (males, breeding females, virgin females) aged 3, 6, 9, and 12 months.
- Alveolar bone loss (ABL) measured via computer-assisted image analysis of stained mandibles 21 days post-surgery.
- Right hemimandibles served as controls for comparison.
Main Results:
- Significant alveolar bone loss (ABL) observed in operated (left) hemimandibles compared to controls (right) across all groups (P <0.001).
- No significant differences in ABL were found based on sex or breeding status.
- ABL was significantly higher in 3-month-old and 12-month-old mice compared to 6- and 9-month-old mice (P <0.001).
Conclusions:
- Three-month-old CF(1) mice provide a suitable model for studying experimentally induced alveolar bone loss (ABL).
- This model is independent of sex and breeding status, simplifying aging research.
- The model facilitates research into the effects of aging on alveolar bone.
