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JCEM: 睾酮水平与老年男性骨折风险呈U型关系

2020-04-07 网络 网络

澳大利亚一项长达10年随访研究显示老年男性睾酮水平与骨折风险呈现U型关系,睾酮中间水平发生骨折或髋部骨折的风险最低。

澳大利亚一项长达10年随访研究显示老年男性睾酮水平与骨折风险呈现U型关系,睾酮中间水平发生骨折或髋部骨折的风险最低。近日,该项研究结果发表于Journal of Clinical Endocrinology Metabolism。

 

西澳大学医学院、菲奥娜斯坦利医院内分泌科Bu Beng Yeap教授及同事开展了这项社区随访研究。研究纳入3307例≥65岁男性(平均77岁),通过质谱法评估2001~2004年(基线)采集的血样中血浆睾酮、双氢睾酮和雌二醇水平,免疫分析法评估性激素结合球蛋白(SHBG)和黄体生成激素(LH)水平,基于西澳大利亚数据系统(WADLS)统计随访期间的骨折发生情况。通过Cox比例风险回归模型来评估睾酮、游离睾酮、二氢睾酮、雌二醇、SHBG和LH浓度与骨折或髋部骨折的相关性,并根据年龄、合并症和虚弱状态进行调整。

结果显示,中位随访10.6年期间,共计330例男性发生骨折,年骨折发生率为1.1%,其中,144例男性髋部骨折,髋部骨折年发生率为0.5%。在调整年龄和虚弱状态的模型中,睾酮水平12.7~15.9nmol/L的男性骨折/髋部骨折发生率最低。双氢睾酮、雌二醇水平、黄体生成激素(LH)水平不影响骨折/髋部骨折的发生风险。见图1、2。

相比于睾酮水平3.61~9.96nmol/L,睾酮水平9.97~12.6nmol/L的男性骨折发生风险降低31%(HR=0.69,95%CI,0.51-0.94,P=0.020),髋部骨折风险降低40%(HR=0.60,95%CI,0.37-0.93,P=0.043);

相比于睾酮水平3.61~9.96nmol/L,睾酮水平12.7~15.9nmol/L的男性骨折发生风险降低41%(HR=0.59,95%CI,0.42-0.83,P=0.002),髋部骨折风险降低48%(HR=0.52,95%CI,0.31-0.88,P=0.015)。

相比于睾酮水平3.61~9.96nmol/L,睾酮水平16~27.6nmol/L的男性骨折发生风险无统计学差异(HR=0.85,95%CI,0.61-1.17,P=0.335),髋部骨折风险无统计学差异(HR=1.04,95%CI,0.65-1.67,P=0.875)。

游离睾酮水平184~218pmol/L的男性骨折发生风险最低,较53.5~151pmol/L降低33%(HR=0.67,95%CI,0.47-0.93,P=0.018),余组间无差异。游离睾酮水平不影响髋部骨折风险。此外,相比于SHBG水平15.7~31.4 nmol/L,SHBG水平50.4~99.5 nmol/L的男性髋部骨折风险增加76%(校正HR=1.76,95%CI,1.05-2.96,P=0.033)。


图1 睾酮、游离睾酮、双氢睾酮、雌二醇、SHBG、LH与骨折风险的相关性


图2 睾酮、游离睾酮、双氢睾酮、雌二醇、SHBG、LH与髋部骨折风险的相关性

Bu Beng Yeap教授评论:”睾酮水平可以预测老年男性骨折发生风险,睾酮水平与骨折发生风险呈U型关联,显示睾酮处于中间水平的男性骨折风险最低。未来仍需要开展相关随机对照研究,探究治疗性维持于适当水平能否降低骨折风险。“


原始出处:
Yeap BB, et al. U-Shaped Association of Plasma Testosterone, and no Association of Plasma Estradiol, with Incidence of Fractures in Men. J Clin Endocrinol Metab. 2020;doi:10.1210/clinem/dgaa115.

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    2021-02-13 achengzhao
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    2020-08-18 smallant2015
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