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純鎂在動物體內(nèi)骨誘導(dǎo)性能的研究
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國家自然科學(xué)基金(30670562)


Research on Bone Inducement of Magnesium in Vivo
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    摘要:

    將改性前后的4N-Mg以及TC4合金對照樣植入白兔股骨,術(shù)后2, 6, 12 w時任取1只處死,進行X線片檢查,血鎂濃度測試,并對標(biāo)本進行SEM觀察、EDS分析,以及組織切片光鏡觀察。結(jié)果表明,骨內(nèi)植入試驗中,動物血鎂濃度均在正常值范圍之內(nèi);鎂基植入材料顯示出較好的骨結(jié)合性和骨誘導(dǎo)性,新生骨組織礦化明顯,新生骨層上有排列整齊的破骨細胞;改性鎂基材料的腐蝕降解速率明顯減小。初步表明鎂基材料有較好的骨誘導(dǎo)性能,改性對鎂基材料腐蝕降解有調(diào)控作用

    Abstract:

    The 4N-Mg alloys with and without modification and the TC4 alloy were embedded in the thigh bones of rabbits. The slices were tested by X-ray method and the concentrations of Mg2+ ion in blood were measured for the died rabbits after operation for 2, 6, and 12 w, respectively. The specimens were analyzed by SEM and EDS, and tissue slices were observed by optical microscope. The vivo results show that the magnesium concentrations in the blood of two groups of animal subjects were in the normal scale. The Mg-based materials have good bone inducement and show the better capability of bonding with bone. The new bone mineralizes obviously on the interface. And on the new bone, the osteoclast cells array orderly. The untreated magnesium-based materials are corroded faster than the treated magnesium-based materials. All results indicate that the Mg-based materials show better biocompatibility and capacity to induce new bone, and the surface modification has an effect to control the corrosion rate of Mg-based biomaterials

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高家誠,喬麗英,王 勇,辛仁龍.純鎂在動物體內(nèi)骨誘導(dǎo)性能的研究[J].稀有金屬材料與工程,2010,39(2):296~299.[Gao Jiacheng, Qiao Liying, Wang Yong, Xin Renlong. Research on Bone Inducement of Magnesium in Vivo[J]. Rare Metal Materials and Engineering,2010,39(2):296~299.]
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  • 收稿日期:2009-06-17
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