JCLA:在维生素D不足和维生素D补充个体中评估重新设定的标准化测试方法

2018-05-31 MedSci MedSci原创

最近,Abbott Diagnostics已对NIST SRM 2972​​的Architect 25(OH)D测试重新进行了标准化。研究人员在维生素D缺乏个体维生素D 3补充前后,评估了标准化Architect 25(OH)D测试的分析和临床表现,并将其性能与NIST可溯源液相色谱-串联质谱法(LC-MS / MS)和罗氏总25(OH)D检测。 从88名健康受试者获得具有自我感知疲劳和维

最近,Abbott Diagnostics已对NIST SRM 2972​​Architect 25OHD测试重新进行了标准化。研究人员在维生素D缺乏个体维生素D 3补充前后,评估了标准化Architect 25OHD测试的分析和临床表现,并将其性能与NIST可溯源液相色谱-串联质谱法(LC-MS / MS)和罗氏总25OHD检测。

88名健康受试者获得具有自我感知疲劳和维生素d-不足<50纳摩尔及-随机接受维生素d的单个100 000 IU剂量3N = 48)或安慰剂(n = 40)的冷冻血清样品。在补充之前和之后4周,采用标准化的Architect 25OHD测定,LC-MS / MS和罗氏测定法,测量总25OHD浓度。

Architect25OHD分析显示内部和批次间不精确度<5%。ArchitectLC-MS / MS方法的、比较显示,维生素D不足和维生素D补充对象的相关性良好,平均偏差分别为17.4%和8.9%。与罗氏试验相比,Abbott试验低估了25OHD结果受试者不足(<50 nmol L -1),平均阴性偏倚为17.1%,这种负面偏倚在补充受试者中转变为阳性偏倚。总体而言,在Architect25OHD方法和LC-MS / MS之间,维生素D不足和富含维生素D的个体进入不同维生素D状态的分类达到了中等程度。

研究表明常规使用标准化的Architect 25OHD导致在较低浓度下循环总25OHD水平的轻微低估,并因此可能对维生素D状态进行错误分类。

原始出处:

Wijtske Annema, et. al.Evaluation of the new restandardized Abbott Architect 25OH Vitamin D assay in vitamin Dinsufficient and vitamin Dsupplemented individuals   

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    2018-05-31 天地飞扬

    了解一下.谢谢分享!

    0

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    2018-05-31 changjiu

    学习一下谢谢

    0

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