NEJM:可溶性尿激酶纤溶酶原激活物受体与急性肾损伤

2020-02-03 MedSci MedSci原创

高可溶性尿激酶纤溶酶原激活物受体水平与急性肾损伤相关

可溶性尿激酶纤溶酶原激活物受体(suPAR)被认为与肾脏疾病相关。近日研究人员考察suPAR与急性肾损伤的相关性。

研究人员测量了接受冠状动脉造影的心脏手术以及危重患者血浆suPAR水平,根据suPAR水平,评估患者7天内和90天内急性肾损伤风险。在实验室中,研究人员制备尿激酶纤溶酶原激活物受体(uPAR)单抗用于减轻转基因小鼠接受造影剂时的急性肾损伤。同时研究人员评估了暴露于重组suPAR下的人肾近端管状(HK-2)细胞的细胞生物能量和活性氧的产生。

3827名进行冠状动脉造影患者接受了suPAR测量,其中250名接受心脏手术,692人属于危重患者。318名患者发生急性肾损伤(8%)。suPAR最高1/4人群与最低1/4人群相比,急性肾损伤风险为2.66,90天内肾损伤和死亡风险为2.29。suPAR过表达小鼠与野生型相比,其急性肾损伤风险增加。suPAR作用于HK-2 细胞后显示出更高的能量需求,线粒体超氧化物生成增加,给予uPAR单抗治疗后肾损伤小鼠症状减轻,HK-2生物能量变化恢复。

研究认为,高可溶性尿激酶纤溶酶原激活物受体水平与急性肾损伤相关。

原始出处:

Salim S. Hayek et al. Soluble Urokinase Receptor and Acute Kidney Injury. N Engl J Med, January 30, 2020.

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    2020-02-05 redcrab
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    2020-02-03 旺医

    顶刊就是顶刊,谢谢梅斯带来这么高水平的研究报道,我们科里同事经常看梅斯,分享梅斯上的信息

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解吸电离质谱法(DESE-MS)是原位快速评估组织模块代谢情况的分析工具,并且不需要进行组织预处理或者标记。最近,有研究人员应用了DESI-MS的方法来鉴定与早期阶段肾损伤相关的候选代谢生物标记。研究人员对80只单侧输尿管梗阻小鼠的肾组织块进行EDSI-MS分析,并与sham对照组进行了比较。研究人员利用LASSO方法建立了肾损伤的预测模型。研究发现,单侧输尿管梗阻组中,脂质和小分子代谢物发生了明

Sci Rep:部分和根治性肾切除术中,术中尿量和术后急性肾损伤相关性不同

最近,有研究人员调查了术中尿量和术后急性肾损伤(AKI)相关性在在经历根治性和部分肾切除患者中的情况。研究人员回顾性的分析了742名患者的数据,术后AKI通过肾脏疾病来定义。根治性和部分肾切除术中的术中尿量和AKI风险之间的关系通过多变量逻辑回归分析来进行评估。研究人员还利用最小P值方法来调查与AKI风险相关的术中少尿最优阈值。研究发现,部分肾切除术后,AKI的发生率为14.4%(67/466);

尿微量白蛋白:早期肾损伤的“信号兵”

王阿姨患有糖尿病,复查时医生需要检测她的尿微量白蛋白,同时需要王阿姨留取24小时尿,王阿姨说:“我之前测过尿常规,蛋白也没有加号,没有留尿啊,怎么这次不一样?”其实,和王阿姨一样,一些糖尿病或者肾脏疾病患者面对这样的检查,也有同样的困惑:到底什么是尿微量白蛋白,和尿常规检测的尿蛋白有什么区别呢?

Neurology:肾损伤对接受血管内再通患者临床结局的影响

由此可见,该研究的结果表明RI是接受EVT治疗的ELVO患者3个月功能独立性和卒中复发长期风险的独立预测因子。