首页> 外文会议>Society for Biomaterials Transaction of the 31st Annual Meeting vol.XXIX pt.2 >Bioreactivity Responses to Bone Cement Are Dose Dependent
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Bioreactivity Responses to Bone Cement Are Dose Dependent

机译:对骨水泥的生物反应性是剂量依赖性的

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Excessive immunologic reactivity (bioreactivity) to implant materials can lead to early failure. The benefit of bone cements' early fixation is tempered by the risk of increased biologic reaction to debris. The degree to which bone cement debris (monomer and/or particles) can activate lymphocytes in humans remains unknown. We hypothesized that a normal response of lymphocytes to bone cement debris will be both dose dependent and proportional, such that excessive reactivity will only occur at high concentrations of soluble and paniculate debris. We tested this by exposing peripheral blood mononuclear cells (PBMCs) from young healthy individuals to increasing concentrations of bone cement monomer and polymeric particulate debris and measured the responses of lymphocytes using lymphocyte transformation testing (LIT).
机译:对植入物材料的过度免疫反应(生物反应性)可能导致早期失败。由于对碎片的生物反应增加,因此降低了骨水泥早期固定的好处。骨水泥碎屑(单体和/或颗粒)可以激活人类淋巴细胞的程度仍然未知。我们假设淋巴细胞对骨水泥碎片的正常反应将是剂量依赖性的和成比例的,因此只有在高浓度的可溶性和颗粒状碎片时才会发生过度的反应。我们通过将年轻健康个体的外周血单核细胞(PBMC)暴露于浓度增加的骨水泥单体和聚合物微粒碎片中进行了测试,并使用淋巴细胞转化测试(LIT)测量了淋巴细胞的反应。

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