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首页> 外文期刊>Journal of Biophotonics >A comparative analysis of different biofluids using Raman spectroscopy to determine disease activity in ANCA-associated vasculitis
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A comparative analysis of different biofluids using Raman spectroscopy to determine disease activity in ANCA-associated vasculitis

机译:拉曼光谱法不同生物流体的对比分析,以确定ANCA相关血管炎疾病活动

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摘要

Identifying persistent or relapsing disease in anti-neutrophil cytoplasmic autoantibody- associated vasculitis (AAV) remains a clinical challenge with an unmet need for a reliable biomarker of multisystem disease. In this study, we confirm for the first time that Raman spectroscopy offers a novel cost-effective candidate biomarker to discriminate active disease from remission in AAV with excellent accuracy. Spectrochemical interrogation of plasma and serum samples demonstrated equal ability to discriminate disease activity with good group separation on PC1 direction and a high degree of accuracy on validation testing using blind predictive modelling: F-score 80% for plasma (specificity 93.3%, sensitivity 70%, AUC 0.95) and 80% for serum (specificity 80%, sensitivity 80%, AUC 0.92). Similar findings were seen on analysis of paired remission samples following successful remission-induction therapy. A larger study with longitudinal data is required to validate these findings with the potential to aid patient care.
机译:在抗中性粒细胞胞浆自身抗体相关血管炎(AAV)中识别持续性或复发性疾病仍然是一个临床挑战,对多系统疾病的可靠生物标记物的需求尚未得到满足。在这项研究中,我们首次证实拉曼光谱提供了一种新的具有成本效益的候选生物标记物,能够以极高的准确性区分AAV中的活动性疾病和缓解。血浆和血清样本的光谱化学询问显示,在PC1方向上具有良好的群体分离,并且在使用盲预测模型进行验证试验时具有较高的准确性,在区分疾病活动方面具有同等能力:血浆的F评分为80%(特异度93.3%,灵敏度70%,AUC 0.95),血清的F评分为80%(特异度80%,灵敏度80%,AUC 0.92)。在成功诱导缓解治疗后对配对缓解样本进行分析时也发现了类似的结果。需要一项更大规模的纵向数据研究来验证这些发现,以帮助患者护理。

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