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CCLM:脱髓鞘疾病的CSF自由轻链鉴别

2018-06-22 MedSci MedSci原创

多发性硬化症(MS)是一种以脱髓鞘和轴突丢失为特征的慢性炎症性疾病。用于免疫球蛋白γ(IgG)指数检测和寡克隆带(OCB)的脑脊液(CSF)是用于诊断多发性硬化症的常用实验室检测方法。CSF自由轻链(FLC)的测量可以替代用于OCB的劳动密集型等电聚焦(IEF)凝胶检测。 在本研究中,经医生排序的OCB IEF测试后,共获得325份残余配对CSF和血清标本,并测量CSFκ(cKFLC)和λ

多发性硬化症(MS)是一种以脱髓鞘和轴突丢失为特征的慢性炎症性疾病。用于免疫球蛋白γ(IgG)指数检测和寡克隆带(OCB)的脑脊液(CSF)是用于诊断多发性硬化症的常用实验室检测方法。CSF自由轻链(FLC)的测量可以替代用于OCB的劳动密集型等电聚焦(IEF)凝胶检测。

在本研究中,经医生排序的OCB IEF测试后,共获得325份残余配对CSF和血清标本,并测量CSFκ(cKFLC)和λFLCcLFLC),白蛋白和总IgG。基于分析物的组合进行计算κ和λ的CSF总和([cKFLC + cLFLC]),κ-指数(K-指数)([cKFLC / sKFLC] / [CSF白蛋白/血清白蛋白]),κ鞘内分数(KFLC IF{[cKFLC / sKFLC] - [0.9358×CSF白蛋白/血清白蛋白] ^ [0.6687×sKFLC] / cKFLC}IgG-指数([CSF IgG / CSF白蛋白] / [血清IgG /血清白蛋白])。

患者被分为:脱髓鞘(n = 67),自身免疫n = 53),非炎症(n = 50),炎症(n = 38),变性(n = 28),周围神经病变(n = 24),感染n = 13),癌症(n = 11),视神经脊髓炎(n = 10)和其他(n = 31)。单独使用0.0611 mg / dL临界值的cKFLC测量结果显示,与OCB一致性在90%以上,与所有其他计算结果相似或更好,减少了分析物和变量的数量。当检查脱髓鞘病例时,cKFLC测量显示临床敏感性86%和77%的特异性。

研究表明,单独的cKFLC可表现出与OCB相当的性能以及对脱髓鞘疾病的敏感性增加。用cKFLC取代OCB将缓解对血清和CSF IgG和白蛋白的需求以及转化率计算。cKFLC可以克服传统OCB性能,解释和成本相关方面的困难,降低成本并保持MS诊断的灵敏度和特异性。

原始出处:

Gurtner, Kari M. / Shosha, Eslam / Bryant, CSF free light chain identification of demyelinating disease: comparison with oligoclonal banding and other CSF indexes

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1755065, encodeId=73ed1e5506587, content=<a href='/topic/show?id=d1011021391e' target=_blank style='color:#2F92EE;'>#髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102139, encryptionId=d1011021391e, topicName=髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f28436833652, createdName=xiaogang329, createdTime=Sun Mar 17 08:38:00 CST 2019, time=2019-03-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668851, encodeId=fd16166885164, content=<a href='/topic/show?id=a41d5339c1' target=_blank style='color:#2F92EE;'>#CSF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5339, encryptionId=a41d5339c1, topicName=CSF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a5226466702, createdName=kcb078, createdTime=Tue Jun 26 11:38:00 CST 2018, time=2018-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=327606, encodeId=6eee32e60601, content=学习学习.很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKibA62IFMeUJEmSyIe8DvYFeERuOsfrRd8iano7nENqQU1dRR3tqeQOUL3eqgYgEZRT2t2iaEsib0JEw/132, createdBy=66771693911, createdName=易水河, createdTime=Thu Jun 28 07:02:57 CST 2018, time=2018-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1516404, encodeId=f8751516404c7, content=<a href='/topic/show?id=8160852e55c' target=_blank style='color:#2F92EE;'>#脱髓鞘#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85275, encryptionId=8160852e55c, topicName=脱髓鞘)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f3ba10959947, createdName=1696533704_45270457, createdTime=Sun Jun 24 03:38:00 CST 2018, time=2018-06-24, status=1, ipAttribution=)]
    2018-06-26 kcb078
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    2018-06-28 易水河

    学习学习.很好

    0

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