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Related Experiment Videos

Crystallographic lattice refinement of human bone.

R G Handschin1, W B Stern

  • 1Geochemical Laboratory, Basel University, Switzerland.

Calcified Tissue International
|August 1, 1992
PubMed
Summary

Bone apatite

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Area of Science:

  • Biomineralization
  • Bone Biology
  • Materials Science

Background:

  • Bone's structural integrity relies on its mineral component, bone apatite.
  • Understanding bone apatite's crystallographic properties is crucial for aging bone research.

Purpose of the Study:

  • To investigate the relationship between bone apatite crystallographic parameters and aging.
  • To analyze how tissue type (cortical and spongy bone) influences these parameters.

Main Methods:

  • X-ray diffraction analysis was performed on human iliac crest bone samples.
  • 87 individuals aged 0-90 years were included, covering a wide age spectrum.

Main Results:

  • Specific crystallographic parameters, including unit cell volume and (002)-reflection half-width of bone apatite, showed strong correlations with age.
  • These parameters also varied significantly between cortical and spongy bone tissues.
  • Ionic substitutions, primarily hydroxyl and carbonate, were identified as major factors influencing bone apatite lattice parameters.

Conclusions:

  • Bone apatite's crystallographic characteristics are sensitive indicators of biological age and bone tissue type.
  • Ionic substitutions significantly alter bone apatite structure, impacting its properties over time.

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