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Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Published on: February 23, 2017

Osteopenic bone cell response to strontium-substituted hydroxyapatite.

E Boanini¹, P Torricelli, M Fini

¹Department of Chemistry G. Ciamician, University of Bologna, Bologna, Italy.

Journal of Materials Science. Materials in Medicine

|June 22, 2011

Summary

This summary is machine-generated.

Strontium-substituted hydroxyapatite (SrHA) enhances osteoblast activity in osteopenic bone cells, showing potential for treating bone defects. This biomaterial improves cell proliferation and differentiation, offering a promising therapeutic approach.

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Biological Compatibility Profile on Biomaterials for Bone Regeneration

Published on: November 16, 2018

Area of Science:

Biomaterials Science
Skeletal Biology
Regenerative Medicine

Background:

Ionic substitution in calcium phosphate materials can enhance biological performance.
Osteoporosis leads to bone fragility and increased fracture risk.
Osteoblasts are crucial for bone formation and remodeling.

Purpose of the Study:

To investigate the biological response of osteopenic bone cells to strontium-substituted hydroxyapatite (SrHA).
To compare SrHA with pure hydroxyapatite (HA) using normal and osteopenic rat osteoblasts.
To evaluate SrHA's potential for treating bone lesions in osteoporotic conditions.

Main Methods:

Primary cultures of osteoblasts from normal (N-OB) and osteopenic (O-OB) rat bone were used.
Cells were cultured on SrHA and HA materials.
Ion release in physiological solutions and cell culture media was measured.
Cell proliferation and differentiation markers (alkaline phosphatase, collagen type I, interleukin-6) were analyzed.

Main Results:

SrHA showed greater solubility than HA in physiological solution, with reduced ion release in DMEM.
O-OB cells cultured on SrHA exhibited significantly higher proliferation rates compared to HA.
SrHA treatment increased alkaline phosphatase and collagen type I levels in O-OB cells.
Production of interleukin-6 was down-regulated in O-OB cells on SrHA, indicating reduced inflammation.

Conclusions:

Strontium substitution in hydroxyapatite improves osteoblast biological performance, particularly in osteopenic bone.
SrHA demonstrates enhanced osteogenic potential and reduced inflammatory response in osteopenic osteoblasts.
SrHA holds promise as a therapeutic biomaterial for bone repair in osteoporotic patients.