Nat Med:液体活检新突破-精准预估肾脏病、心血管疾病风险!

2019-11-12 Paris 转化医学网

近日,由格拉斯哥大学的研究小组领导的一项新的研究发现:使用基于胱抑素C测试的液体检查能够提前预估肾脏及心血管疾病风险,提供了更加精确的诊断,并为患者更好的预后奠定了基础。相关文章以“Glomerular filtration rate by differing measures, albuminuria and prediction of cardiovascular disease, morta

近日,由格拉斯哥大学的研究小组领导的一项新的研究发现:使用基于胱抑素C测试的液体检查能够提前预估肾脏及心血管疾病风险,提供了更加精确的诊断,并为患者更好的预后奠定了基础。相关文章以“Glomerular filtration rate by differing measures, albuminuria and prediction of cardiovascular disease, mortality and end-stage kidney disease”为题在线发表在《Nature Medicine》上。



来自CKD预后协会的大型个体患者荟萃分析临床数据,证实了CKD是CVD(心血管疾病)的另一个独立危险因素,蛋白尿是CKD和肾小球损害的重要特征,被认为与CVD风险增加和全因死亡率有关,而在来自CKD预后协会的其他分析中,与目前的方法相比,CKD患者的白蛋白尿症尤其改善了CVD的风险预测。

在本次研究中,该研究小组对估计肾小球滤过率(eGFR)的三种方法进行了测试,以期找到对预测CVD及死亡率最具临床意义的方法,他们使用了英国生物库超40万名患者的数据,使用血清肌酐,半胱氨酸蛋白酶抑制剂C和肌酐半胱氨酸蛋白酶抑制剂计算eGFR,使用CoX模型比较每种eGFR与CVD结局和死亡率的相关性,并调整动脉粥样硬化危险因素(根据相关风险评分),然后根据C统计量和分类净量分类指数确定预测效用,结果显示,eGFRcys与CVD和死亡率最密切相关,并且与白蛋白尿一起,对当前CVD风险评分增加了预测性评估。而传统的基于肌酐的测量与风险的关联性则较弱。


英国生物库超40万名患者的eGFR评估

胱抑素C测试已然在英国国家卫生服务实验室进行了超过10年的测试,与血清肌酐相比,它有许多潜在的优势:它可以被体内每个细胞释放,可以在肾小球上自由过滤,并且不受影响按身体习性,肌肉质量或性别划分。因此据认为是评估肾脏功能更敏感的措施。然而,cystatin C测试的价格是血清肌酐测试的10倍,目前,胱抑素c仅用于高度专业化的环境,并非所有医院都能提供。

当然,该研究进一步推动了液体活检的发展,液体活检作为一种新兴的肿瘤诊断、治疗辅助技术,具有无创取样、动态监测与敏感性高等技术特性,可应用于多种肿瘤诊断与治疗中。如今,液体活检也涉足肾脏疾病,心血管疾病领域,慢性病,老年病诊断需求增加,CTC与ctDNA检测技术逐渐成熟,液体活检将广泛的用于临床,并逐渐取代组织活检。

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    2020-04-03 zxxiang
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    2020-02-11 liye789132251
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近日,来自乌普萨拉大学和哥德堡大学Sahlgrenska学院的科学家表示,他们已经开发了一种血液检测方法,通过高通量蛋白质组学确定了卵巢癌的11种高精确度的血浆蛋白生物标志物,可以为疑似卵巢癌提供更准确的诊断,有望为卵巢癌高危患者提供早期筛查,降低了卵巢癌患者的剖腹探查术的手术率。

Nat Immunol:首次利用液体活检预测实体瘤复发风险

未来有一天,采取一项专门的血液检测就能帮助医生和患者预测新确诊的乳腺癌在几年后是否会复发。

为何投资者对癌症ctDNA液体活检依旧“信心满满,热情高涨”:NBT解析背后原因

近年来,随着“精准医学”理念的不断拓展,针对癌症的液体活检开展得异常火热。目前,癌症的液体活检手段主要包括循环肿瘤细胞(CTC)、循环肿瘤DNA(ctDNA)、循环RNA(cfRNA)、外泌体以及蛋白和代谢产物检测等。其中,针对ctDNA的体细胞突变检测技术研究及应用较为广泛。但该技术也存在一定的局限性,如癌细胞释放的ctDNA多数未发生突变,或者发生了罕见突变难以识别,为检测的准确性和精确性带来

液体活检新进展与新方向,为肺癌全程管理之路精准护航

液体活检是通过分析血液或其他体液,以检测标本中肿瘤相关分子标志物的新技术。随着细胞分离技术和基因检测技术的发展,其在肿瘤精准医疗中的价值日益凸显。相较于组织活检,液体活检技术能很好地克服肿瘤异质性,重复检测方便,可进行分子水平的动态监测,具有广阔的临床应用前景。特邀中国医学科学院肿瘤医院的王洁教授,就液体活检特别是循环肿瘤DNA(ctDNA)检测在肿瘤临床诊疗上的应用现状及未来探索方向做一专访。