CLIN CHEM LAB MED:脑脊液游离轻链对莱姆病的诊断价值?

2020-02-04 Gladiator MedSci原创

本研究的目的是评价脑脊液游离轻链(FLCs)在莱姆病(LNB)诊断中的作用。

本研究的目的是评价脑脊液游离轻链(FLCs)在莱姆病(LNB)诊断中的作用。

血清和CSF水平的κλ-FLC,白蛋白和总浓度的免疫球蛋白M (IgM)测定CSF趋化因子一起CXCL1323个患者明确LNB, 35炎症的神经疾病控制(INDC)18非炎症控制(NIC)患者。计算FLCIgM的指数和鞘内分数(IFs)

研究检测了23例明确LNB35例炎性神经疾病对照(INDC)和18例非炎性对照的患者的血清和CSFκ-λ-FLC,白蛋白和免疫球蛋白MIgM)的总浓度以及CSF趋化因子CXCL13 NIC)患者。 计算了FLCIgM的指标和鞘内分数(IFs)。

研究结果显示LNB组和两个对照组之间的FLC指数和IFs均存在显着差异,p≤0.007 LNB患者鞘内κ-FLC合成的敏感性达到78-87%,NIC患者的特异性为94-100%,而INDC患者的特异性为69%。 在选择的临界值时,这三个诊断组的IFIgMCSF CXCL13指数阳性结果的相应频率分别为LNB患者74–96%,NIC患者0%和INDC患者3–6 水平。

这项研究的结果表明,在LNIC患者中CSFκ-λ-FLCCNIC的敏感性中等至高,对NIC患者的特异性较高。 但是,LNBINDC患者之间的CSFκλ-FLC水平重叠需要在解释时引起注意,并限制了LNB诊断的诊断价值。 除了常规参数(例如CSF胞吞作用和抗疏螺旋体抗体指数)外,CSF CXCL13似乎是LNB最具价值的额外的生物标记。

原始出处:

Ivar TjernbergMarcus JohanssonDiagnostic performance of cerebrospinal fluid free light chains in Lyme neuroborreliosis a pilot study

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