Clinical and analytical comparison of six Simoa assays for plasma P-tau isoforms P-tau181, P-tau217, and P-tau231.

Clinical and analytical comparison of six Simoa assays for plasma P-tau isoforms P-tau181, P-tau217, and P-tau231.
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血浆P-tau亚型P-tau 181、P-tau 217和P-tau 231的六种Simoa检测的临床和分析比较。

DOI:
10.1186/s13195-021-00939-9
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发表时间:
2021-12-04
期刊:
Alzheimer's research & therapy
影响因子:
--
通讯作者:
Teunissen CE
Teunissen CE
中科院分区:
其他
文献类型:
--
作者:
Bayoumy S;Verberk IMW;den Dulk B;Hussainali Z;Zwan M;van der Flier WM;Ashton NJ;Zetterberg H;Blennow K;Vanbrabant J;Stoops E;Vanmechelen E;Dage JL;Teunissen CE

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使用不同的测定和技术的研究显示了血浆磷酸化(P-)tau水平对阿尔茨海默病(AD)的非常有希望的诊断价值。我们旨在比较6种P-tau Simoa检测试剂,包括3种P-tau 181(Eli Lilly,ADx,Quanterix)、1种P-tau 217(Eli Lilly)和2种P-tau 231(ADx,哥德堡)。我们研究了分析(灵敏度,精密度,平行度,稀释线性和回收率)和临床(40例AD痴呆患者,年龄66± 8岁,50%F; 40例年龄和性别匹配的对照)性能的测定。所有试验均显示出稳健的分析性能,特别是P-tau 217 Eli Lilly; P-tau 231哥德堡和所有P-tau 181试验均显示出稳健的临床性能,以区分AD与对照,AUC为0.936-0.995(P-tau 231 ADx:AUC = 0.719)。所有P-tau 181测定、P-tau 217 Eli Lilly测定和P-tau 231哥德堡测定获得的结果均高度相关(斯皮尔曼rho > 0.86),而与P-tau 231 ADx结果的相关性为中度(rho < 0.65)。P-tau亚型可以通过几种新型的高灵敏度Simoa测定法稳健地测量。在线版本包含补充材料,可通过10.1186/s13195-021-00939-9获得。
Studies using different assays and technologies showed highly promising diagnostic value of plasma phosphorylated (P-)tau levels for Alzheimer’s disease (AD). We aimed to compare six P-tau Simoa assays, including three P-tau181 (Eli Lilly, ADx, Quanterix), one P-tau217 (Eli Lilly), and two P-tau231 (ADx, Gothenburg). We studied the analytical (sensitivity, precision, parallelism, dilution linearity, and recovery) and clinical (40 AD dementia patients, age 66±8years, 50%F; 40 age- and sex-matched controls) performance of the assays. All assays showed robust analytical performance, and particularly P-tau217 Eli Lilly; P-tau231 Gothenburg and all P-tau181 assays showed robust clinical performance to differentiate AD from controls, with AUCs 0.936–0.995 (P-tau231 ADx: AUC = 0.719). Results obtained with all P-tau181 assays, P-tau217 Eli Lilly assay, and P-tau231 Gothenburg assay strongly correlated (Spearman’s rho > 0.86), while correlations with P-tau231 ADx results were moderate (rho < 0.65). P-tau isoforms can be measured robustly by several novel high-sensitive Simoa assays. The online version contains supplementary material available at 10.1186/s13195-021-00939-9.
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