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Age-related changes in female mouse cortical bone microporosity
- Source :
- Bone, 113, 1-8. Elsevier, Bone, 113, 1-8. Elsevier Inc., Hemmatian, H, Laurent, M R, Bakker, A D, Vanderschueren, D, Klein-Nulend, J & van Lenthe, G H 2018, ' Age-related changes in female mouse cortical bone microporosity ', Bone, vol. 113, pp. 1-8 . https://doi.org/10.1016/j.bone.2018.05.003
- Publication Year :
- 2018
-
Abstract
- Osteocyte lacunae are small cavities within the bone matrix. Their dimensions and spatial arrangement affect bone mechanical properties. Furthermore, their size and shape affect the strain in bone tissue close to the lacunae; hence, they are supposed to affect the mechanosensory function of the osteocytes residing in the lacunae. It was the purpose of this study to quantify the morphological features of osteocyte lacunae, whether these are affected by aging and whether these vary among different anatomical location. In addition, we aimed at quantifying the vascular canals as these affect bone's microporosity too. We quantified the microporosity in the fibular midshaft of young-adult and old female C57BL/6 mice. Using micro-computed tomography (μCT), we found that advanced age was associated with a significantly decreased vascular canal number and volume density. In aged mice, the mean volume of the lacuna was significantly smaller than in young animals and they were more round. Lacuna number density close to the neutral axis of the fibula was higher in older mice than in young ones. The characterization of bone microporosity presents a first step in further unraveling their potential role in age-related reductions in bone strength.
- Subjects :
- 0301 basic medicine
Aging
Histology
Physiology
Endocrinology, Diabetes and Metabolism
030209 endocrinology & metabolism
Bone matrix
Biology
Bone tissue
Volume density
Mice
03 medical and health sciences
0302 clinical medicine
Bone strength
Age related
Cortical Bone
medicine
Animals
X-Ray Microtomography
Anatomy
Mice, Inbred C57BL
030104 developmental biology
medicine.anatomical_structure
Osteocyte
Female
Cortical bone
Porosity
Lacuna
Subjects
Details
- Language :
- English
- ISSN :
- 87563282
- Volume :
- 113
- Database :
- OpenAIRE
- Journal :
- Bone
- Accession number :
- edsair.doi.dedup.....3ecdbee545dae38e5442c05de7bb2255