...
首页> 外文期刊>Journal of orthopaedic research >Diabetes mellitus alters the mechanical properties of the native tendon in an experimental rat model.
【24h】

Diabetes mellitus alters the mechanical properties of the native tendon in an experimental rat model.

机译:糖尿病会改变实验大鼠模型中天然肌腱的机械性能。

获取原文
获取原文并翻译 | 示例
           

摘要

The purpose of this study was to determine the effect of the diabetic phenotype on the mechanical properties of the native patellar tendon and its enthesis. Diabetes was induced via intraperitoneal injection of streptozotocin in Lewis rats. Control (n = 18) and diabetic animals (n = 20) were killed at 12 and 19 days for analysis. Statistical comparisons were performed using Student's t-tests and a two-tailed Fisher test with significance set at p < 0.05. Pre- and post-injection intraperitoneal glucose tolerance tests demonstrated significant impairment of glycemic control in the diabetic compared to control animals (p = 0.001). Mean serum hemoglobin A1c levels at 19 days was 10.6 +/- 2.7% and 6.0 +/- 1.0% for the diabetic and control groups, respectively (p = 0.0001). Fifteen of sixteen diabetic animals demonstrated intrasubstance failure of the patellar tendon, while only 7 of 14 control specimens failed within the tendon substance. The Young's modulus of the diabetic tendon was significantly lower than control specimens by 19 days post-induction (161 +/- 10 N m(-2) compared to 200 +/- 46 N m(-2) , respectively) (p = 0.02). The metabolic condition of poorly controlled diabetes negatively affects the mechanical properties of the native patellar tendon. These altered structural properties may predispose diabetic patients to a greater risk of tendinopathy and/or traumatic rupture.
机译:这项研究的目的是确定糖尿病表型对天然pa骨肌腱的力学性能及其本质的影响。腹腔内注射链脲佐菌素可诱发Lewis大鼠糖尿病。在第12和19天处死对照(n = 18)和糖尿病动物(n = 20)。使用Student's t检验和两尾Fisher检验进行统计学比较,显着性设置为p <0.05。注射前和注射后腹膜内葡萄糖耐量测试表明,与对照组动物相比,糖尿病患者的血糖控制能力明显受损(p = 0.001)。糖尿病组和对照组在19天时的平均血红蛋白A1c水平分别为10.6 +/- 2.7%和6.0 +/- 1.0%(p = 0.0001)。在16只糖尿病动物中,有15只表现出tend腱实质性衰竭,而在14例对照标本中,只有7例在腱实质内失效。诱导后19天,糖尿病肌腱的杨氏模量显着低于对照标本(分别为161 +/- 10 N m(-2)与200 +/- 46 N m(-2))(p = 0.02)。糖尿病控制不佳的代谢状况会对天然pa骨肌腱的机械性能产生负面影响。这些改变的结构特性可能使糖尿病患者容易患肌腱病和/或外伤性破裂。

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