...
首页> 外文期刊>Journal of Biomechanics >CALCIUM BUFFERING IS REQUIRED TO MAINTAIN BONE STIFFNESS IN SALINE SOLUTION
【24h】

CALCIUM BUFFERING IS REQUIRED TO MAINTAIN BONE STIFFNESS IN SALINE SOLUTION

机译:要求钙缓冲以保持盐溶液中的骨刚度

获取原文
获取原文并翻译 | 示例
           

摘要

This work determined whether mineral dissolution due to prolonged testing or storage of bone specimens in normal saline would alter their elastic modulus. In one experiment, small pieces of equine third metacarpal bone were soaked in normal saline supplemented with varying amounts of CaCl2. Changing Ca ion concentrations in the bath were monitored and the equilibrium concentration was determined. In a second experiment, the elastic moduli of twenty 4 x 10 x 100 mm equine third metacarpal beams were determined non-destructively in four-point bending. Half the beams were then soaked for 10 days in normal saline, and the other half in saline buffered to the bone mineral equilibrium point with Ca ions. Modulus measurements were repeated at 6 and 10 days. The equilibrium Ca ion concentration for bone specimens was found to be 57.5 mgl(-1). The modulus of bone specimens soaked in normal saline significantly diminished 2.4%, whereas the modulus of those soaked in calcium-buffered saline did not change significantly. Copyright (C) 1996 Elsevier Science Ltd. [References: 7]
机译:这项工作确定了由于长时间测试或将骨骼样本保存在生理盐水中而导致的矿物溶解是否会改变其弹性模量。在一个实验中,将马第三掌骨的小块浸泡在补充有不同量的CaCl2的生理盐水中。监测浴液中变化的Ca离子浓度,并确定平衡浓度。在第二个实验中,在四点弯曲中无损确定了20个4 x 10 x 100 mm马第三掌骨梁的弹性模量。然后将一半的光束在生理盐水中浸泡10天,另一半在盐水中用Ca离子缓冲至骨矿物质平衡点。在第6天和第10天重复模量测量。发现骨骼标本的平衡钙离子浓度为57.5 mgl(-1)。浸泡在生理盐水中的骨标本的模量显着降低了2.4%,而浸泡在钙缓冲盐水中的骨标本的模量没有明显变化。版权所有(C)1996 Elsevier Science Ltd. [参考:7]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号