Nat Med:滴血验病!这项血液检测揭晓肾脏和心血管疾病危险系数

2019-11-12 佚名 生物探索

格拉斯哥大学的研究者在《Nature Medicine》杂志上,提出了一项精确而简单的血液测试,可以衡量肾脏和心血管疾病风险。

目前,慢性肾脏病(chronic kidney disease, CKD)是全球性公共健康卫生急需解决和处理的常见疾病,大约影响10%的人群。美国相关研究系统中的肾脏病患者数据资料分析显示,50%以上的CKD 5期患者的死因是由于并发心血管疾病(cardiovascular disease,CVD),此类患者心血管疾病的发病率高出了普通人群10~20倍。

近日,格拉斯哥大学的研究者在《Nature Medicine》杂志上,提出了一项精确而简单的血液测试,可以衡量肾脏和心血管疾病风险。

这项研究使用了英国生物库(UK Biobank)440,526名患者的数据,并分别采用三种不同的肾功能测试——血清肌酐(serum creatinine,eGFRcr)、半胱氨酸蛋白酶抑制剂C(cystatin C,eGFRcys)和肌酐-半胱氨酸蛋白酶抑制剂C(combined cystatin C-creatinine,eGFRcr-cys),以得到肾小球滤过率估计值(estimated glomerular filtration rate,eGFR),用Cox模型比较每种eGFR与CVD预后和死亡率的关系,预测效用由C统计和净重新分类改善指数(NRI)决定。



复合致命/非致命心血管疾病、致命心血管疾病或全因死亡的C统计值变化(95%CI)

结果显示,eGFRcys与CVD及其死亡率关系最为密切,并且随着蛋白尿的增加,使当前CVD风险评测结果更加准确,远优于传统的血清肌酐法,eGFR-cys检测法是预测心血管风险的最佳方法,尤其针对那些有糖尿病高血压或肥胖的患者。

肾病学教授Paddy Mark提到,英国国家医疗服务(NHS)实验室已经使用eGFR-cys检测法10多年,其相比于现有的肌酐检测法,有很多优势:Cystatin C是由身体的每个细胞产生的小蛋白,因此不易受个体特征的影响,如年龄、肌肉等。此外,Cystatin C很容易从肾小球中过滤。

第一作者Dr.Lees指出,eGFR-cys检测法可以更清楚地检测患者的肾脏健康,预测心血管风险,帮助医生及早发现和治疗患者。尽管该检测法被国家卫生和保健卓越研究所(NICE)推荐,但可能由于较高的检测费用,Cystatin C的测量尚未在临床实践中广泛采用。

结语

这一简单测试有助于医生更精确地诊断肾脏疾病和心血管风险,及时采取预防和治疗措施,以挽救更多患者。

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    2019-11-13 1209e435m98(暂无昵称)

    学习了,谢谢分享

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